onListItemClick doesnt work with my ListView

onListItemClick doesnt work with my ListView - android

i try to make a list with Clickable strings from my string array.
By clicking on any String i want to get to a classes named after this string.
I tried with onListItemClick... but it doesnt work :S .. any suggestions for a solution?
Thank you for your time :)
I've got some Strings for example called "Title 1", "Title 2" and a little description under every title called "Description 1", "Description 2"... in a ListView. By clicking on "title" i want to get to a class named Title . How to do that with my construct?
Listview
Title 1
Description 1
Title 2
Description 2
Title 3
Description 3
ListviewEnd
package com.example.benice;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class Main extends Activity implements OnClickListener {
String[] titles; // String Array
String[] beschreibung; // String Array
ListView list;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Automatisch generierter Methodenstub
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
Resources res = getResources();
titles = res.getStringArray(R.array.titles);
beschreibung = res.getStringArray(R.array.beschreibung);
list = (ListView) findViewById(R.id.listView1);
VivzAdapter adapter = new VivzAdapter(this, titles, beschreibung);
list.setAdapter(adapter);
}
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Automatisch generierter Methodenstub
onListItemClick(l, v, position, id);
String cheese = titles[position];
try {
Class ourClass = Class.forName("com.example.benice." + cheese);
Intent ourIntent = new Intent(Main.this, ourClass);
startActivity(ourIntent);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
#Override
public void onClick(View v) {
// TODO Automatisch generierter Methodenstub
}
}
class VivzAdapter extends ArrayAdapter<String> {
Context context;
String[] titlesArray;
String[] beschreibungArray;
VivzAdapter(Context c, String[] titles, String[] beschreibung) {
super(c, R.layout.single_row, R.id.titleTextView, titles);
this.context = c;
this.titlesArray = titles;
this.beschreibungArray = beschreibung;
}
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflator = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflator.inflate(R.layout.single_row, parent, false);
TextView titles = (TextView) row.findViewById(R.id.titleTextView);
TextView beschreibung = (TextView) row.findViewById(R.id.beschTextView);
titles.setText(titlesArray[position]);
beschreibung.setText(beschreibungArray[position]);
return row;
}
}
this is how the .xml looks like
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="90dp"
android:background="#drawable/backgg"
android:orientation="vertical" >
<TextView
android:id="#+id/titleTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="5dp"
android:text="Here is the Title"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#fefefe" />
<TextView
android:id="#+id/beschTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="10dp"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:text="Here is the Descrition"
android:textColor="#fefefe" />
</LinearLayout>

It's possible to construct your ListView by extending ListActivity rather than Activity - onListItemClick will only work as it is used in you code if you extend ListActivity. You can also unimplement OnClickListener regardless of what you do. For instance:
public class MainActivity extends ListActivity {
String[] titles = { "One", "two", "three", "four", "five"};
String[] beschreibung = { "1", "2", "3", "4", "5"};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// VivzAdapter? Good to see another SlideNerd fan :)
VivzAdapter adapter = new VivzAdapter(this, titles, beschreibung);
setListAdapter(adapter);
}
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
String cheese = titles[position];
try {
Class ourClass = Class.forName("com.example.benice." + cheese);
Intent ourIntent = new Intent(this, ourClass);
startActivity(ourIntent);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
This will work for as long as you have other Classes called "One", "two", "three" etc. You also need to alter the construction of your getView() method in the custom ArrayAdapter.
public View getView(int position, View convertView, ViewGroup parent) {
View row;
if (convertView == null) {
LayoutInflater inflator = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflator.inflate(R.layout.row, parent, false);
} else {
row = convertView;
}
TextView titles = (TextView) row.findViewById(R.id.titleTextView);
TextView beschreibung = (TextView) row.findViewById(R.id.beschTextView);
titles.setText(titlesArray[position]);
beschreibung.setText(beschreibungArray[position]);
return row;
}
This post goes into more depth on onListItemClick.

First of all you need to implement an AdapterView.OnItemClickListener not View.OnClickListener as you Activity is doing.
Then you need to also set this listener on your listview, like this for example:
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// your code here
}
});
There might be other things wrong with your code, for example, Class.forName() is most likely going to throw exceptions if you're feeding it random strings from a list view, but without more detail about what exactly you're trying to do that's hard to say.

There's a few issues with your code, and i got a few tips for you as well.
The first issue, as to why ListClick event doesn't work. You never actually bind it to the listview.
To enable click events on your list, use this code:
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Put your code here
}
});
Also, you have implemented onClick in your activity, because you have 'implements OnClickListener'. Why? You dont use it, so just remove it.
I'm fairly certain this could also play a role in how click events are handled by your list click event handler. As the click event for the activity might get triggered first, and then stop the click event of the list from firing.
A few tips:
1) Write all your code in english, even variable names and comments. Makes is much easier for people to read (especially since you're asking for help on an english speaking forum)
2) You can use 'LayoutInflater.from(Context)' to get a LayoutInflater, instead of that long line of code where you use 'getSystemService'.

Related

How to set default text in spinner? [duplicate]

I want to use a Spinner that initially (when the user has not made a selection yet) displays the text "Select One". When the user clicks the spinner, the list of items is displayed and the user selects one of the options. After the user has made a selection, the selected item is displayed in the Spinner instead of "Select One".
I have the following code to create a Spinner:
String[] items = new String[] {"One", "Two", "Three"};
Spinner spinner = (Spinner) findViewById(R.id.mySpinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, items);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
With this code, initially the item "One" is displayed. I could just add a new item "Select One" to the items, but then "Select One" would also be displayed in the dropdown list as first item, which is not what I want.
How can I fix this problem?

What you can do is decorate your SpinnerAdapter with one that presents a 'Select Option...' View initially for the Spinner to display with nothing selected.
Here is a working example tested for Android 2.3, and 4.0 (it uses nothing in the compatibility library, so it should be fine for awhile) Since it's a decorator, it should be easy to retrofit existing code and it works fine with CursorLoaders also. (Swap cursor on the wrapped cursorAdapter of course...)
There is an Android bug that makes this a little tougher to re-use views. (So you have to use the setTag or something else to ensure your convertView is correct.) Spinner does not support multiple view types
Code notes: 2 constructors
This allows you to use a standard prompt or define your own 'nothing selected' as the first row, or both, or none. (Note: Some themes show a DropDown for a Spinner instead of a dialog. The Dropdown doesn't normally show the prompt)
You define a layout to 'look' like a prompt, for example, grayed out...
Using a standard prompt (notice that nothing is selected):
Or with a prompt and something dynamic (could have had no prompt also):
Usage in above example
Spinner spinner = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setPrompt("Select your favorite Planet!");
spinner.setAdapter(
new NothingSelectedSpinnerAdapter(
adapter,
R.layout.contact_spinner_row_nothing_selected,
// R.layout.contact_spinner_nothing_selected_dropdown, // Optional
this));
contact_spinner_row_nothing_selected.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/text1"
style="?android:attr/spinnerItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:textSize="18sp"
android:textColor="#808080"
android:text="[Select a Planet...]" />
NothingSelectedSpinnerAdapter.java
import android.content.Context;
import android.database.DataSetObserver;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.SpinnerAdapter;
/**
* Decorator Adapter to allow a Spinner to show a 'Nothing Selected...' initially
* displayed instead of the first choice in the Adapter.
*/
public class NothingSelectedSpinnerAdapter implements SpinnerAdapter, ListAdapter {
protected static final int EXTRA = 1;
protected SpinnerAdapter adapter;
protected Context context;
protected int nothingSelectedLayout;
protected int nothingSelectedDropdownLayout;
protected LayoutInflater layoutInflater;
/**
* Use this constructor to have NO 'Select One...' item, instead use
* the standard prompt or nothing at all.
* #param spinnerAdapter wrapped Adapter.
* #param nothingSelectedLayout layout for nothing selected, perhaps
* you want text grayed out like a prompt...
* #param context
*/
public NothingSelectedSpinnerAdapter(
SpinnerAdapter spinnerAdapter,
int nothingSelectedLayout, Context context) {
this(spinnerAdapter, nothingSelectedLayout, -1, context);
}
/**
* Use this constructor to Define your 'Select One...' layout as the first
* row in the returned choices.
* If you do this, you probably don't want a prompt on your spinner or it'll
* have two 'Select' rows.
* #param spinnerAdapter wrapped Adapter. Should probably return false for isEnabled(0)
* #param nothingSelectedLayout layout for nothing selected, perhaps you want
* text grayed out like a prompt...
* #param nothingSelectedDropdownLayout layout for your 'Select an Item...' in
* the dropdown.
* #param context
*/
public NothingSelectedSpinnerAdapter(SpinnerAdapter spinnerAdapter,
int nothingSelectedLayout, int nothingSelectedDropdownLayout, Context context) {
this.adapter = spinnerAdapter;
this.context = context;
this.nothingSelectedLayout = nothingSelectedLayout;
this.nothingSelectedDropdownLayout = nothingSelectedDropdownLayout;
layoutInflater = LayoutInflater.from(context);
}
#Override
public final View getView(int position, View convertView, ViewGroup parent) {
// This provides the View for the Selected Item in the Spinner, not
// the dropdown (unless dropdownView is not set).
if (position == 0) {
return getNothingSelectedView(parent);
}
return adapter.getView(position - EXTRA, null, parent); // Could re-use
// the convertView if possible.
}
/**
* View to show in Spinner with Nothing Selected
* Override this to do something dynamic... e.g. "37 Options Found"
* #param parent
* #return
*/
protected View getNothingSelectedView(ViewGroup parent) {
return layoutInflater.inflate(nothingSelectedLayout, parent, false);
}
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
// Android BUG! http://code.google.com/p/android/issues/detail?id=17128 -
// Spinner does not support multiple view types
if (position == 0) {
return nothingSelectedDropdownLayout == -1 ?
new View(context) :
getNothingSelectedDropdownView(parent);
}
// Could re-use the convertView if possible, use setTag...
return adapter.getDropDownView(position - EXTRA, null, parent);
}
/**
* Override this to do something dynamic... For example, "Pick your favorite
* of these 37".
* #param parent
* #return
*/
protected View getNothingSelectedDropdownView(ViewGroup parent) {
return layoutInflater.inflate(nothingSelectedDropdownLayout, parent, false);
}
#Override
public int getCount() {
int count = adapter.getCount();
return count == 0 ? 0 : count + EXTRA;
}
#Override
public Object getItem(int position) {
return position == 0 ? null : adapter.getItem(position - EXTRA);
}
#Override
public int getItemViewType(int position) {
return 0;
}
#Override
public int getViewTypeCount() {
return 1;
}
#Override
public long getItemId(int position) {
return position >= EXTRA ? adapter.getItemId(position - EXTRA) : position - EXTRA;
}
#Override
public boolean hasStableIds() {
return adapter.hasStableIds();
}
#Override
public boolean isEmpty() {
return adapter.isEmpty();
}
#Override
public void registerDataSetObserver(DataSetObserver observer) {
adapter.registerDataSetObserver(observer);
}
#Override
public void unregisterDataSetObserver(DataSetObserver observer) {
adapter.unregisterDataSetObserver(observer);
}
#Override
public boolean areAllItemsEnabled() {
return false;
}
#Override
public boolean isEnabled(int position) {
return position != 0; // Don't allow the 'nothing selected'
// item to be picked.
}
}

Here's a general solution that overrides the Spinner view. It overrides setAdapter() to set the initial position to -1, and proxies the supplied SpinnerAdapter to display the prompt string for position less than 0.
This has been tested on Android 1.5 through 4.2, but buyer beware! Because this solution relies on reflection to call the private AdapterView.setNextSelectedPositionInt() and AdapterView.setSelectedPositionInt(), it's not guaranteed to work in future OS updates. It seems likely that it will, but it is by no means guaranteed.
Normally I wouldn't condone something like this, but this question has been asked enough times and it seems like a reasonable enough request that I thought I would post my solution.
/**
* A modified Spinner that doesn't automatically select the first entry in the list.
*
* Shows the prompt if nothing is selected.
*
* Limitations: does not display prompt if the entry list is empty.
*/
public class NoDefaultSpinner extends Spinner {
public NoDefaultSpinner(Context context) {
super(context);
}
public NoDefaultSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NoDefaultSpinner(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void setAdapter(SpinnerAdapter orig ) {
final SpinnerAdapter adapter = newProxy(orig);
super.setAdapter(adapter);
try {
final Method m = AdapterView.class.getDeclaredMethod(
"setNextSelectedPositionInt",int.class);
m.setAccessible(true);
m.invoke(this,-1);
final Method n = AdapterView.class.getDeclaredMethod(
"setSelectedPositionInt",int.class);
n.setAccessible(true);
n.invoke(this,-1);
}
catch( Exception e ) {
throw new RuntimeException(e);
}
}
protected SpinnerAdapter newProxy(SpinnerAdapter obj) {
return (SpinnerAdapter) java.lang.reflect.Proxy.newProxyInstance(
obj.getClass().getClassLoader(),
new Class[]{SpinnerAdapter.class},
new SpinnerAdapterProxy(obj));
}
/**
* Intercepts getView() to display the prompt if position < 0
*/
protected class SpinnerAdapterProxy implements InvocationHandler {
protected SpinnerAdapter obj;
protected Method getView;
protected SpinnerAdapterProxy(SpinnerAdapter obj) {
this.obj = obj;
try {
this.getView = SpinnerAdapter.class.getMethod(
"getView",int.class,View.class,ViewGroup.class);
}
catch( Exception e ) {
throw new RuntimeException(e);
}
}
public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
try {
return m.equals(getView) &&
(Integer)(args[0])<0 ?
getView((Integer)args[0],(View)args[1],(ViewGroup)args[2]) :
m.invoke(obj, args);
}
catch (InvocationTargetException e) {
throw e.getTargetException();
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
protected View getView(int position, View convertView, ViewGroup parent)
throws IllegalAccessException {
if( position<0 ) {
final TextView v =
(TextView) ((LayoutInflater)getContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE)).inflate(
android.R.layout.simple_spinner_item,parent,false);
v.setText(getPrompt());
return v;
}
return obj.getView(position,convertView,parent);
}
}
}

I ended up using a Button instead. While a Button is not a Spinner, the behavior is easy to customize.
First create the Adapter as usual:
String[] items = new String[] {"One", "Two", "Three"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_dropdown_item, items);
Note that I am using the simple_spinner_dropdown_item as the layout id. This will help create a better look when creating the alert dialog.
In the onClick handler for my Button I have:
public void onClick(View w) {
new AlertDialog.Builder(this)
.setTitle("the prompt")
.setAdapter(adapter, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO: user specific action
dialog.dismiss();
}
}).create().show();
}
And that's it!

First, you might be interested in the prompt attribute of the Spinner class. See the picture below, "Choose a Planet" is the prompt that can be set in the XML with android:prompt="".
I was going to suggest subclassing Spinner, where you could maintain two adapters internally. One adapter that has the "Select One" option, and the other real adapter (with the actual options), then using the OnClickListener to switch the adapters before the choices dialog is shown. However, after trying implement that idea I've come to the conclusion you cannot receive OnClick events for the widget itself.
You could wrap the spinner in a different view, intercept the clicks on the view, and then tell your CustomSpinner to switch the adapter, but seems like an awful hack.
Do you really need to show "Select One"?

This code has been tested and works on Android 4.4
Spinner spinner = (Spinner) activity.findViewById(R.id.spinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(activity, android.R.layout.simple_spinner_dropdown_item) {
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
if (position == getCount()) {
((TextView)v.findViewById(android.R.id.text1)).setText("");
((TextView)v.findViewById(android.R.id.text1)).setHint(getItem(getCount())); //"Hint to be displayed"
}
return v;
}
#Override
public int getCount() {
return super.getCount()-1; // you dont display last item. It is used as hint.
}
};
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
adapter.add("Daily");
adapter.add("Two Days");
adapter.add("Weekly");
adapter.add("Monthly");
adapter.add("Three Months");
adapter.add("HINT_TEXT_HERE"); //This is the text that will be displayed as hint.
spinner.setAdapter(adapter);
spinner.setSelection(adapter.getCount()); //set the hint the default selection so it appears on launch.
spinner.setOnItemSelectedListener(this);

I found this solution:
String[] items = new String[] {"Select One", "Two", "Three"};
Spinner spinner = (Spinner) findViewById(R.id.mySpinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, items);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {
items[0] = "One";
selectedItem = items[position];
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
Just change the array[0] with "Select One" and then in the onItemSelected, rename it to "One".
Not a classy solution, but it works :D

Lots of answers here but I'm surprised no one suggested a simple solution: Place a TextView on top of the Spinner. Set a click listener on the TextView which hides the TextView shows the Spinner, and calls spinner.performClick().

There is no default API to set hint on Spinner. To add it we need a small workaround with out that not safety reflection implementation
List<Object> objects = new ArrayList<Object>();
objects.add(firstItem);
objects.add(secondItem);
// add hint as last item
objects.add(hint);
HintAdapter adapter = new HintAdapter(context, objects, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Spinner spinnerFilmType = (Spinner) findViewById(R.id.spinner);
spinner.setAdapter(adapter);
// show hint
spinner.setSelection(adapter.getCount());
Adapter source:
public class HintAdapter
extends ArrayAdapter<Objects> {
public HintAdapter(Context theContext, List<Object> objects) {
super(theContext, android.R.id.text1, android.R.id.text1, objects);
}
public HintAdapter(Context theContext, List<Object> objects, int theLayoutResId) {
super(theContext, theLayoutResId, android.R.id.text1, objects);
}
#Override
public int getCount() {
// don't display last item. It is used as hint.
int count = super.getCount();
return count > 0 ? count - 1 : count;
}
}
Original source

I got the same problem for spinner, with an empty selection, and I found a better solution. Have a look at this simple code.
Spinner lCreditOrDebit = (Spinner)lCardPayView.findViewById(R.id.CARD_TYPE);
spinneradapter lAdapter =
new spinneradapter(
BillPayScreen.this,
ndroid.R.layout.simple_spinner_item,getResources().getStringArray(R.array.creditordebit));
lAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
lCreditOrDebit.setAdapter(lAdapter);
Here spinneradapter is a small customization for arrayadapter. It looks like this:
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
public class spinneradapter extends ArrayAdapter<String>{
private Context m_cContext;
public spinneradapter(Context context,int textViewResourceId, String[] objects) {
super(context, textViewResourceId, objects);
this.m_cContext = context;
}
boolean firsttime = true;
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if(firsttime){
firsttime = false;
//Just return some empty view
return new ImageView(m_cContext);
}
//Let the array adapter take care of it this time.
return super.getView(position, convertView, parent);
}
}

You can change it to a Text View and use this:
android:style="#android:style/Widget.DeviceDefault.Light.Spinner"
and then define the android:text property.

XML file:
<Spinner android:id="#+id/locationSpinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="#string/select_location" />
Activity:
private Spinner featuresSelection;
private ArrayAdapter<CharSequence> featuresAdapter;
private List<CharSequence> featuresList;
onCreate:
featuresList = new ArrayList<CharSequence>();
featuresAdapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_spinner_item, featuresList);
featuresAdapter.setDropDownViewResource(
android.R.layout.simple_spinner_dropdown_item);
featuresSelection = ((Spinner) yourActivity.this
.findViewById(R.id.locationSpinner));
featuresSelection.setAdapter(featuresAdapter);
featuresSelection.setOnItemSelectedListener(
new MyOnItemSelectedListener());
Some function (add things to the adapter programmatically)>
featuresAdapter.add("some string");
Now you have an empty spinner and you can write code to not open the dialog if empty. Or they can press back. But you also populate it with a function or another list during run time.

In addition, There is a simple trick to show default:
You can add a default value in your list and then add all of your collection using list.addAll(yourCollection);
Sample workable code here:
List<FuelName> fuelList = new ArrayList<FuelName>();
fuelList.add(new FuelName(0,"Select One"));
fuelList.addAll(response.body());
ArrayAdapter adapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_spinner_item, fuelList);
//fuelName.setPrompt("Select Fuel");
fuelName.setAdapter(adapter);

I have a spinner on my main.xml and its id is #+id/spinner1
this is what i write in my OnCreate function :
spinner1 = (Spinner)this.findViewById(R.id.spinner1);
final String[] groupes = new String[] {"A", "B", "C", "D", "E", "F", "G", "H"};
ArrayAdapter<CharSequence> featuresAdapter = new ArrayAdapter<CharSequence>(this, android.R.layout.simple_spinner_item, new ArrayList<CharSequence>());
featuresAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(featuresAdapter);
for (String s : groupes) featuresAdapter.add(s);
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {
// Here go your instructions when the user chose something
Toast.makeText(getBaseContext(), groupes[position], 0).show();
}
public void onNothingSelected(AdapterView<?> arg0) { }
});
It doesn't need any implementation in the class.

I have tried like the following. Take a button and give the click event to it. By changing the button background, it seems to be a spinner.
Declare as global variables alertdialog and default value..
AlertDialog d;
static int default_value = 0;
final Button btn = (Button) findViewById(R.id.button1);
btn .setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v)
{
//c.show();
final CharSequence str[] = {"Android","Black Berry","Iphone"};
AlertDialog.Builder builder =
new AlertDialog.Builder(TestGalleryActivity.this).setSingleChoiceItems(
str, default_value,new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int position)
{
Toast.makeText(TestGalleryActivity.this,
"" + position,
Toast.LENGTH_SHORT).show();
default_value = position;
btn.setText(str[position]);
if(d.isShowing())
d.dismiss();
}
}).setTitle("Select Any");
d = builder.create();
d.show();
}
});

Take a look at the iosched app for a general purpose solution to adding an element to the top of a list. In particular, if you are using a CursorAdapter, look at TracksAdapter.java which extends that definition to provide a "setHasAllItem" method and associated code to manage the list count to deal with the extra item at the top.
Using the custom adapter you can set the text to "Select One" or whatever else you may want that top item to say.

I found many good solutions for this. most is working by adding an item to the end of adapter, and don't display the last item in drop-down list.
The big problem for me was the spinner drop-down list will start from the bottom of the list. So user see the last items instead of the first items (in case of have many items to show), after touch the spinner for the first time.
So I put the hint item to the beginning of the list. and hide the first item in drop-down list.
private void loadSpinner(){
HintArrayAdapter hintAdapter = new HintArrayAdapter<String>(context, 0);
hintAdapter.add("Hint to be displayed");
hintAdapter.add("Item 1");
hintAdapter.add("Item 2");
.
.
hintAdapter.add("Item 30");
spinner1.setAdapter(hintAdapter);
//spinner1.setSelection(0); //display hint. Actually you can ignore it, because the default is already 0
//spinner1.setSelection(0, false); //use this if don't want to onItemClick called for the hint
spinner1.setOnItemSelectedListener(yourListener);
}
private class HintArrayAdapter<T> extends ArrayAdapter<T> {
Context mContext;
public HintArrayAdapter(Context context, int resource) {
super(context, resource);
this.mContext = context
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(android.R.layout.simple_spinner_item, parent, false);
TextView texview = (TextView) view.findViewById(android.R.id.text1);
if(position == 0) {
texview.setText("");
texview.setHint(getItem(position).toString()); //"Hint to be displayed"
} else {
texview.setText(getItem(position).toString());
}
return view;
}
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
View view;
if(position == 0){
view = inflater.inflate(R.layout.spinner_hint_list_item_layout, parent, false); // Hide first row
} else {
view = inflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent, false);
TextView texview = (TextView) view.findViewById(android.R.id.text1);
texview.setText(getItem(position).toString());
}
return view;
}
}
set the below layout in #Override getDropDownView() when position is 0, to hide the first hint row.
R.layout.spinner_hint_list_item_layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</LinearLayout>

I think the easiest way is creating a dummy item on index 0 saying "select one" and then on saving maybe check that selection is not 0.

So this is my final example "all-in" for a button-spinner
In activity_my_form.xml
<Button
android:id="#+id/btnSpinnerPlanets"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="left|center_vertical"
android:singleLine="true"
android:text="#string/selectAPlanet"
android:textSize="10sp"
android:background="#android:drawable/btn_dropdown">
</Button>
In strings.xml
<string name="selectAPlanet">Select planet…</string>
<string-array name="planets__entries">
<item>The Sun with a name very long so long long long long longThe Sun with a name very long so long long long long longThe Sun with a name very long so long long long long long</item>
<item>Mercury</item>
<item>Venus</item>
<item>Earth</item>
<item>Mars</item>
<item>Jupiter</item>
<item>Saturn</item>
<item>Uranus</item>
<item>Neptune</item>
</string-array>
In MyFormActivity.java
public class MyFormActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
((Button) findViewById(R.id.btnSpinnerPlanets)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final String[] items = view.getResources().getStringArray(R.array.planets__entries);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(MyFormActivity.this, android.R.layout.simple_spinner_dropdown_item, items);
new AlertDialog.Builder(MyFormActivity.this).setTitle("the prompt").setAdapter(adapter, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
((Button) findViewById(R.id.btnSpinnerPlanets)).setText(items[which]);
dialog.dismiss();
}
}).create().show();
}
});
}
}
Finally I obtained a font size configurable no first item selectable button spinner!!!
Thanks to HRJ

The best solution I found for this is actually not to use a Spinner but an AutoCompleteTextView. Its basically an EditText with attached Spinner to show suggestions as you type - but, with the right config, it can behave exactly as the OP wishes and more.
XML:
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/item"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.appcompat.widget.AppCompatAutoCompleteTextView
android:id="#+id/input"
android:hint="Select one"
style="#style/AutoCompleteTextViewDropDown"/>
</com.google.android.material.textfield.TextInputLayout>
Style:
<style name="AutoCompleteTextViewDropDown">
<item name="android:clickable">false</item>
<item name="android:cursorVisible">false</item>
<item name="android:focusable">false</item>
<item name="android:focusableInTouchMode">false</item>
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">wrap_content</item>
</style>
As for the adapter use the basic ArrayAdapter or extend it to make your own, but no additional customization on the adapter side is necessary. Set the adapter on the AutoCompleteTextView.

When extending SpinnerAdapter, you override two View-producing methods, getView(int, View, ViewGroup) and getDropDownView(int, View, ViewGroup). The first one supplies the View inserted into the Spinner itself; the second supplies the View in the drop-down list (as the name suggests). You can override the getView(...) so that, until an item has been selected, it displays a TextView containing a prompt; then, when you detect an item has been selected, you change it to display a TextView corresponding to that.
public class PromptingAdapter extends SpinnerAdapter {
//... various code ...
private boolean selectionmade = false;
//call this method from the OnItemSelectedListener for your Spinner
public setSelectionState(boolean b) {
selectionmade = b;
}
#Override
public View getView(int position, View recycle, ViewGroup container) {
if(selectionmade) {
//your existing code to supply a View for the Spinner
//you could even put "return getDropDownView(position, recycle, container);"
}
else {
View output;
if(recycle instanceof TextView) {
output = recycle;
}
else {
output = new TextView();
//and layout stuff
}
output.setText(R.string.please_select_one);
//put a string "please_select_one" in res/values/strings.xml
return output;
}
}
//...
}

For those using Xamarin, here is the C# equivalent to aaronvargas's answer above.
using Android.Content;
using Android.Database;
using Android.Views;
using Android.Widget;
using Java.Lang;
namespace MyNamespace.Droid
{
public class NothingSelectedSpinnerAdapter : BaseAdapter, ISpinnerAdapter, IListAdapter
{
protected static readonly int EXTRA = 1;
protected ISpinnerAdapter adapter;
protected Context context;
protected int nothingSelectedLayout;
protected int nothingSelectedDropdownLayout;
protected LayoutInflater layoutInflater;
public NothingSelectedSpinnerAdapter(ISpinnerAdapter spinnerAdapter, int nothingSelectedLayout, Context context) : this(spinnerAdapter, nothingSelectedLayout, -1, context)
{
}
public NothingSelectedSpinnerAdapter(ISpinnerAdapter spinnerAdapter, int nothingSelectedLayout, int nothingSelectedDropdownLayout, Context context)
{
this.adapter = spinnerAdapter;
this.context = context;
this.nothingSelectedLayout = nothingSelectedLayout;
this.nothingSelectedDropdownLayout = nothingSelectedDropdownLayout;
layoutInflater = LayoutInflater.From(context);
}
protected View GetNothingSelectedView(ViewGroup parent)
{
return layoutInflater.Inflate(nothingSelectedLayout, parent, false);
}
protected View GetNothingSelectedDropdownView(ViewGroup parent)
{
return layoutInflater.Inflate(nothingSelectedDropdownLayout, parent, false);
}
public override Object GetItem(int position)
{
return position == 0 ? null : adapter.GetItem(position - EXTRA);
}
public override long GetItemId(int position)
{
return position >= EXTRA ? adapter.GetItemId(position - EXTRA) : position - EXTRA;
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
// This provides the View for the Selected Item in the Spinner, not
// the dropdown (unless dropdownView is not set).
if (position == 0)
{
return GetNothingSelectedView(parent);
}
// Could re-use the convertView if possible.
return this.adapter.GetView(position - EXTRA, null, parent);
}
public override int Count
{
get
{
int count = this.adapter.Count;
return count == 0 ? 0 : count + EXTRA;
}
}
public override View GetDropDownView(int position, View convertView, ViewGroup parent)
{
// Android BUG! http://code.google.com/p/android/issues/detail?id=17128 -
// Spinner does not support multiple view types
if (position == 0)
{
return nothingSelectedDropdownLayout == -1 ?
new View(context) :
GetNothingSelectedDropdownView(parent);
}
// Could re-use the convertView if possible, use setTag...
return adapter.GetDropDownView(position - EXTRA, null, parent);
}
public override int GetItemViewType(int position)
{
return 0;
}
public override int ViewTypeCount => 1;
public override bool HasStableIds => this.adapter.HasStableIds;
public override bool IsEmpty => this.adapter.IsEmpty;
public override void RegisterDataSetObserver(DataSetObserver observer)
{
adapter.RegisterDataSetObserver(observer);
}
public override void UnregisterDataSetObserver(DataSetObserver observer)
{
adapter.UnregisterDataSetObserver(observer);
}
public override bool AreAllItemsEnabled()
{
return false;
}
public override bool IsEnabled(int position)
{
return position > 0;
}
}
}

I also solved this problem by using the following code. Suppose you are having a list of items e.g.
ArrayList<Item> itemsArrayList = new ArrayList<Item>();
Item item1 = new Item();
item1.setId(1);
item1.setData("First Element");
Item item2 = new Item();
item2.setId(2);
Item2.setData("Second Element");
itemsArrayList.add(item1);
itemsArrayList.add(item2);
Now we have to provide the strings to spinner because spinner can not understand the object. So we will create an new array list with string items like this ->
ArrayList<String> itemStringArrayList = new ArrayList<String>();
for(Item item : itemsArrayList) {
itemStringArrayList.add(item.getData());
}
Now we have itemStringArrayList array list with two string items. And we have to show the "Select Item" text as first item. So we have to insert an new string into the itemStringArrayList.
itemStringArrayList.add("Select Item");
Now we have an array list itemsArrayList and we want to show two elements in the drop down. But the condition here is ...If we don't select anything then Select Item should appear as first element which will not be enabled.
So we can implement this functionality like this. If you need to load the array list items into the android spinner. So you will have to use some adapter. So here i'll use the ArrayAdapter. We can use the customise adapter too.
ArrayAdapter<String> itemsArrayAdapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.spinner_item, itemsArrayList){
#Override
public boolean isEnabled(int position) {
if(position == 0)
{
return false;
}
else
{
return true;
}
}
#Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
View view = super.getDropDownView(position, convertView, parent);
TextView tv = (TextView) view;
if(position == 0){
// Set the hint text color gray
tv.setTextColor(Color.GRAY);
}
else {
tv.setTextColor(Color.BLACK);
}
return view;
}
};
itemsArrayAdapter.setDropDownViewResource(R.layout.spinner_item);
your_spinner_name.setAdapter(itemsArrayAdapter);
Here in this code. we are using the customised spinner layout i.e. R.layout.spinner_item. It's a simple text view
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:textStyle="italic"
android:fontFamily="sans-serif-medium"
/>
We need to disable the first text in the spinner. So for the position 0 we are disabling the text. And color also we can set by overiding getDropDownView method. So in this way we will get the expected spinner.

I was facing the same problem yesterday and did not want to add a hidden item to the ArrayAdapter or use reflections, which works fine but is kind of dirty.
After reading many posts and trying around I found a solution by extending ArrayAdapter and Overriding the getView method.
import android.content.Context;
import android.support.annotation.NonNull;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
/**
* A SpinnerAdapter which does not show the value of the initial selection initially,
* but an initialText.
* To use the spinner with initial selection instead call notifyDataSetChanged().
*/
public class SpinnerAdapterWithInitialText<T> extends ArrayAdapter<T> {
private Context context;
private int resource;
private boolean initialTextWasShown = false;
private String initialText = "Please select";
/**
* Constructor
*
* #param context The current context.
* #param resource The resource ID for a layout file containing a TextView to use when
* instantiating views.
* #param objects The objects to represent in the ListView.
*/
public SpinnerAdapterWithInitialText(#NonNull Context context, int resource, #NonNull T[] objects) {
super(context, resource, objects);
this.context = context;
this.resource = resource;
}
/**
* Returns whether the user has selected a spinner item, or if still the initial text is shown.
* #param spinner The spinner the SpinnerAdapterWithInitialText is assigned to.
* #return true if the user has selected a spinner item, false if not.
*/
public boolean selectionMade(Spinner spinner) {
return !((TextView)spinner.getSelectedView()).getText().toString().equals(initialText);
}
/**
* Returns a TextView with the initialText the first time getView is called.
* So the Spinner has an initialText which does not represent the selected item.
* To use the spinner with initial selection instead call notifyDataSetChanged(),
* after assigning the SpinnerAdapterWithInitialText.
*/
#Override
public View getView(int position, View recycle, ViewGroup container) {
if(initialTextWasShown) {
return super.getView(position, recycle, container);
} else {
initialTextWasShown = true;
LayoutInflater inflater = LayoutInflater.from(context);
final View view = inflater.inflate(resource, container, false);
((TextView) view).setText(initialText);
return view;
}
}
}
What Android does when initialising the Spinner, is calling getView for the selected item before calling getView for all items in T[] objects.
The SpinnerAdapterWithInitialText returns a TextView with the initialText, the first time it is called.
All the other times it calls super.getView which is the getView method of ArrayAdapter which is called if you are using the Spinner normally.
To find out whether the user has selected a spinner item, or if the spinner still displays the initialText, call selectionMade and hand over the spinner the adapter is assigned to.

See the answer with lightweight and high customisable library:
https://stackoverflow.com/a/73085435/6694920
<com.innowisegroup.hintedspinner.HintedSpinner
android:id="#+id/hintedSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginHorizontal="20dp"
app:hintTextSize="24sp"
app:hintTextColor="#color/red"
app:hint="Custom hint"
app:withDivider="true"
app:dividerColor="#color/dark_green"
app:arrowDrawable="#drawable/example_arrow_4"
app:arrowTint="#color/colorAccent"
app:popupBackground="#color/light_blue"
app:items="#array/text" />
Collapsed spinner:
Expanded spinner:

I'd just use a RadioGroup with RadioButtons if you only have three choices, you can make them all unchecked at first.

None of the previously submitted answers really worked the way I wanted to solve this issue. To me the ideal solution would provide the “Select One” (or whatever initial text) when the spinner is first displayed. When the user taps the spinner, the initial text shouldn’t be a part of the drop down that is displayed.
To further complicate my particular situation, my spinner data is coming form a cursor that is loaded via the LoaderManager callbacks.
After considerable experimentation I came up with the following solution:
public class MyFragment extends Fragment implements
LoaderManager.LoaderCallbacks<Cursor>{
private static final String SPINNER_INIT_VALUE = "Select A Widget";
private Spinner mSpinner;
private int mSpinnerPosition;
private boolean mSpinnerDropDownShowing = false;
private View mSpinnerDropDown;
private MyCursorAdapter mCursorAdapter;
...
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
...
mCursorAdapter = new MyCursorAdapter(getActivity());
mSpinner = (Spinner) rootView.findViewById(R.id.theSpinner);
mSpinner.setOnTouchListener(mSpinnerTouchListener);
mSpinner.setAdapter(mCursorAdapter);
...
}
//Capture the touch events to toggle the spinner's dropdown visibility
private OnTouchListener mSpinnerTouchListener = new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if(mSpinnerDropDown != null && mSpinnerDropDownShowing == false){
mSpinnerDropDownShowing = true;
mSpinnerDropDown.setVisibility(View.VISIBLE);
}
return false;
}
};
//Capture the click event on the spinner drop down items
protected OnClickListener spinnerItemClick = new OnClickListener(){
#Override
public void onClick(View view) {
String widget = ((TextView) view.findViewById(android.R.id.text1)).getText().toString();
if(!widget.equals(SPINNER_INIT_VALUE)){
if(mCursorAdapter != null){
Cursor cursor = mCursorAdapter.getCursor();
if(cursor.moveToFirst()){
while(!cursor.isAfterLast()){
if(widget.equals(cursor.getString(WidgetQuery.WIDGET_NAME))){
...
//Set the spinner to the correct item
mSpinnerPosition = cursor.getPosition() + 1;
mSpinner.setSelection(mSpinnerPosition);
break;
}
cursor.moveToNext();
}
}
}
}
//Hide the drop down. Not the most elegent solution but it is the only way I could hide/dismiss the drop down
mSpinnerDropDown = view.getRootView();
mSpinnerDropDownShowing = false;
mSpinnerDropDown.setVisibility(View.GONE);
}
};
private class MyCursorAdapter extends CursorAdapter {
private final int DISPLACEMENT = 1;
private final int DEFAULT_ITEM_ID = Integer.MAX_VALUE;
private Activity mActivity;
public MyCursorAdapter(Activity activity) {
super(activity, null, false);
mActivity = activity;
}
//When loading the regular views, inject the defualt item
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if(position == 0){
if(convertView == null){
convertView = mActivity.getLayoutInflater().inflate(R.layout.list_item_widget, parent, false);
}
return getDefaultItem(convertView);
}
return super.getView(position - DISPLACEMENT, convertView, parent);
}
//When loading the drop down views, set the onClickListener for each view
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent){
View view = super.getDropDownView(position, convertView, parent);
view.setOnClickListener(spinnerItemClick);
return view;
}
//The special default item that is being injected
private View getDefaultItem(View convertView){
TextView text = (TextView) convertView.findViewById(android.R.id.text1);
text.setText(SPINNER_INIT_VALUE);
return convertView;
}
#Override
public long getItemId(int position) {
if (position == 0) {
return DEFAULT_ITEM_ID;
}
return super.getItemId(position - DISPLACEMENT);
}
#Override
public boolean isEnabled(int position) {
return position == 0 ? true : super.isEnabled(position - DISPLACEMENT);
}
#Override
public int getViewTypeCount() {
return super.getViewTypeCount() + DISPLACEMENT;
}
#Override
public int getItemViewType(int position) {
if (position == 0) {
return super.getViewTypeCount();
}
return super.getItemViewType(position - DISPLACEMENT);
}
#Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mActivity.getLayoutInflater().inflate(R.layout.list_item_widget, parent, false);
}
#Override
public void bindView(View view, Context context, Cursor cursor){
if(cursor.isAfterLast()){
return;
}
TextView text = (TextView) view.findViewById(android.R.id.text1);
String WidgetName = cursor.getString(WidgetQuery.WIDGET_NAME);
text.setText(WidgetName);
}
}
}

I handle this by using a button instead of a Spinner. I have the sample project up on GitHub.
In the project, i'm displaying both the Spinner and button to show that they indeed look identical. Except the button you can set the initial text to whatever you want.
Here's what the activity looks like:
package com.stevebergamini.spinnerbutton;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Spinner;
public class MainActivity extends Activity {
Spinner spinner1;
Button button1;
AlertDialog ad;
String[] countries;
int selected = -1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
spinner1 = (Spinner) findViewById(R.id.spinner1);
button1 = (Button) findViewById(R.id.button1);
countries = getResources().getStringArray(R.array.country_names);
// You can also use an adapter for the allert dialog if you'd like
// ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, countries);
ad = new AlertDialog.Builder(MainActivity.this).setSingleChoiceItems(countries, selected,
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
button1.setText(countries[which]);
selected = which;
ad.dismiss();
}}).setTitle(R.string.select_country).create();
button1.setOnClickListener( new OnClickListener(){
#Override
public void onClick(View v) {
ad.getListView().setSelection(selected);
ad.show();
}});
}
}
NOTE: Yes, I realize that this is dependent on the applied Theme and the look will be slightly different if using Theme.Holo. However, if you're using one of the legacy themes such as Theme.Black, you're good to go.

Seems a banal solution but I usually put simply a TextView in the front of the spinner. The whole Xml looks like this. (hey guys, don't shoot me, I know that some of you don't like this kind of marriage):
<FrameLayout
android:id="#+id/selectTypesLinear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<Spinner
android:id="#+id/spinnerExercises"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:entries="#array/exercise_spinner_entries"
android:prompt="#string/exercise_spinner_prompt"
/>
<TextView
android:id="#+id/spinnerSelectText"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Hey! Select this guy!"
android:gravity="center"
android:background="#FF000000" />
</FrameLayout>
Then I hide the TextView when an Item was selected. Obviously the background color of the TextView should be the same as the Spinner. Works on Android 4.0. Don't know on older versions.
Yes. Because the Spinner calls setOnItemSelectedListener at the beginning, the hiding of the textview could be a little bit tricky, but can be done this way:
Boolean controlTouched;
exerciseSpinner.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
controlTouched = true; // I touched it but but not yet selected an Item.
return false;
}
});
exerciseSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
if (controlTouched) { // Are you sure that I touched it with my fingers and not someone else ?
spinnerSelText.setVisibility(View.GONE);
}
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});

for me it worked something like this. has the improvement that only changes the text in SOME options, not in all.
First i take the names of the spinner and create the arrayadapter with a customize view, but it doesn't matter now, the key is override the getView, and inside change the values u need to change. In my case was only the first one, the rest i leave the original
public void rellenarSpinnerCompeticiones(){
spinnerArrayCompeticiones = new ArrayList<String>();
for(Competicion c: ((Controlador)getApplication()).getCompeticiones()){
spinnerArrayCompeticiones.add(c.getNombre());
}
//ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this,R.layout.spinner_item_competicion,spinnerArrayCompeticiones);
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this, R.layout.spinner_item_competicion, spinnerArrayCompeticiones){
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View v = vi.inflate(R.layout.spinner_item_competicion, null);
final TextView t = (TextView)v.findViewById(R.id.tvCompeticion);
if(spinnerCompeticion.getSelectedItemPosition()>0){
t.setText(spinnerArrayCompeticiones.get(spinnerCompeticion.getSelectedItemPosition()));
}else{
t.setText("Competiciones");
}
return v;
}
};
spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerCompeticion.setAdapter(spinnerArrayAdapter);
}

Refer to one of the above answers: https://stackoverflow.com/a/23005376/1312796
I added my code to fix a little bug. That where no data retrieved..How to show the prompt text..!
Here is my Trick...It works fine with me. !
Try to put your spinner in a Relative_layoutand align a Textview with your spinner and play with the visibility of the Textview (SHOW/HIDE) whenever the adapter of the spinner loaded or empty..Like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="20dp"
android:background="#ededed"
android:orientation="vertical">
<TextView
android:id="#+id/txt_prompt_from"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:textColor="#color/gray"
android:textSize="16sp"
android:layout_alignStart="#+id/sp_from"
android:text="From"
android:visibility="gone"/>
<Spinner
android:id="#+id/sp_from"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
/>
Here is the code:
txt__from = (TextView) rootView.findViewById(R.id.txt_prompt_from);
call this method after and before spinner adapter loaded and empty.
setPromptTextViewVisibility (); //True or fales
public void setPromptTextViewVisibility (boolean visible )
{
if (visible)
{
txt_from.setVisibility(View.VISIBLE);
}
else
{
txt_from.setVisibility(View.INVISIBLE);
}
}

Code not working to disable items in spinner android

Dropdown list for country and city:
I want to make a spinner in android just like this attached image. For example, you select the list and you can choose any city from the country.Only the cities should be clickable and can be stored from the list. The country name should not be clickable.Having problem in disabling some of the items from the spinner.
This is the xml for the spinner.
`<Spinner
android:id="#+id/districtSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:hint="District"
android:textSize="16sp"
android:theme="#style/MyEditText"
/>`
And this is the code:
`Spinner DistrictBetterSpinner;
String[] District_Spinner = new String[]{"Punjab", "Rawalpindi", "Attock", "Faisalabad", "Chakwal", "Bhakkar", "Jhelum", "Multan", "Chiniot"
, "Bhawalpur", "Jhelum", "Gujrat", "Gujranwala", "Lahore", "Mianwali", "Khyber Pakhtunkhwa (KPK)", "Abbotabad", "Haripur", "Kohat",
"Sindh", "Hyderabad", "Jacobabad", "Balochistan", "Awaran", "Gawadar", "Federally Administered Tribal Areas", "Khyber Agency",
"Mohmat Agency", "Azad Jammu and Kashmir", "Neelum", "Bagh", "Gilgit Baltistan", "Skardu", "Astore"};
List<String> spinnerlist;
ArrayAdapter<String> arrayadapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_post);
DistrictBetterSpinner = (Spinner) findViewById(R.id.districtSpinner);
spinnerlist = new ArrayList<>(Arrays.asList(District_Spinner));
arrayadapter = new ArrayAdapter<String>(AddPostActivity.this, R.layout.spinner_item, spinnerlist);
public boolean isEnabled(int position){
if (position == 0 || position==1) {
return false;
} else {
return true;
}
}
#Override
public View getDropDownView ( int position, View convertView, ViewGroup parent){
View view = super.getDropDownView(position, convertView, parent);
TextView spinnerTextView = (TextView) view;
if (position == 0) {
// Set the disable item text color
spinnerTextView.setTextColor(Color.BLACK);
} else {
spinnerTextView.setTextColor(Color.GRAY);
}
return view;
}
}
;
arrayadapter.setDropDownViewResource(R.layout.spinner_item);
DistrictBetterSpinner.setAdapter( arrayadapter);
`

I think the following may be what you are after (new lines added to getDropDownView after you set the TextColor for Cities to grey):-
#Override
public View getDropDownView ( int position, View convertView, ViewGroup parent){
View view = super.getDropDownView(position, convertView, parent);
TextView spinnerTextView = (TextView) view;
if (position == 0) {
// Set the disable item text color
spinnerTextView.setTextColor(Color.BLACK);
} else {
spinnerTextView.setTextColor(Color.GRAY);
spinnerTextView.setOnclickListener( new View.OnClickListener() {
#Override
public void onClick(View view) {
//YOUR ONCLICK HANDLING CODE HERE
}
});
}
return view;
}
P.S. in my comment above I mentioned getView as an alternative. It isn't as that's the selection view rather than the dropdown (got mixed up with ListViews).
Looking more closely at your Answer and Code. I see that you haven't got anywhere really. So here's a rudimentary example based upon your code.
First a new layout file for an entry in the dropdown list (I've also cheated a little and used this for the selected entry, you probably have a separate layout for each). This is spinner_item.xml :-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/spinnerTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
As you want customised features you should probably have a custom adapter (which is what you appeared to be attemtping in your code). The adapter handles placing the data (arrayList in your case) into the views used by the spinner (the term used is inflate). So here's the custom adapter which I've placed into it's own file. This is MyArrayAdapter.java :-
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Mike092015 on 31/10/2016.
*/
public class MyArrayAdapter extends ArrayAdapter<String> {
private Context context;
private TextView district;
private ArrayList<String> districts;
public MyArrayAdapter(Activity context, int layout, ArrayList<String> districts) {
super(context, layout, districts);
this.context = context;
this.districts = districts;
}
#Override
public View getDropDownView(int position, View convertview, ViewGroup parent) {
View v = convertview;
if (v == null) {
v = LayoutInflater.from(this.context).inflate(R.layout.spinner_item,parent,false);
}
district = (TextView) v.findViewById(R.id.spinnerTextView);
district.setText(districts.get(position));
district.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(context,"You clicked me",Toast.LENGTH_SHORT).show();
}
});
return v;
}
public View getView(int position, View convertview, ViewGroup parent) {
View v = convertview;
if (v == null) {
v = LayoutInflater.from(this.context).inflate(R.layout.spinner_item,parent,false);
}
district = (TextView) v.findViewById(R.id.spinnerTextView);
district.setText(districts.get(position));
return v;
}
}
Note the onClickListener in the getDropDownView this is where you catch and handle the clicking of an entry (in this case it just issues a toast).
activity_main.xml (the layout that includes the spinner, little, if any different from your layout) is :-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Testing"/>
<Spinner
android:id="#+id/districtSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:hint="District"
android:textSize="16sp"
/>
</LinearLayout>
Lastly the activity, to test this I've used MainActivity, so MainActicity.java is:-
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Spinner;
import java.util.ArrayList;
import java.util.Arrays;
/**
* Created by Mike092015 on 3/06/2016.
*/
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Spinner DistrictBetterSpinner;
String[] District_Spinner = new String[]{"Punjab", "Rawalpindi", "Attock", "Faisalabad", "Chakwal", "Bhakkar", "Jhelum", "Multan", "Chiniot"
, "Bhawalpur", "Jhelum", "Gujrat", "Gujranwala", "Lahore", "Mianwali", "Khyber Pakhtunkhwa (KPK)", "Abbotabad", "Haripur", "Kohat",
"Sindh", "Hyderabad", "Jacobabad", "Balochistan", "Awaran", "Gawadar", "Federally Administered Tribal Areas", "Khyber Agency",
"Mohmat Agency", "Azad Jammu and Kashmir", "Neelum", "Bagh", "Gilgit Baltistan", "Skardu", "Astore"};
ArrayList<String> spinnerlist;
MyArrayAdapter arrayadapter;
DistrictBetterSpinner = (Spinner) findViewById(R.id.districtSpinner);
spinnerlist = new ArrayList<>(Arrays.asList(District_Spinner));
arrayadapter = new MyArrayAdapter(this,R.layout.spinner_item,spinnerlist);
arrayadapter.setDropDownViewResource(R.layout.spinner_item);
DistrictBetterSpinner.setAdapter(arrayadapter);
}
}
Note there are some changes but it is very much based upon your code.

Extracting 2 strings from 2 listviews in adroidstudio

I have 2 listviews in 1 activity (1 on the left 1 on the right of screen). I want 2 strings extracted from both list views and use them else where in the code (either in the same activity but different class or different activity). I have tried assigning clicked items to a public variable and then posting them on a text view bit I see nothing. Please help or suggest another better way. Here is a sample of my code:
public class Tabs extends Activity {
String CF =""; //Convert To
String CT =""; //Convert From
populateListView(); //function that populates my listview (not shown here)
ListView listMassFrom = (ListView) findViewById(R.id.ListViewMassFrom);
ListView listMassTo = (ListView) findViewById(R.id.ListViewMassTo);
listMassFrom.setOnItemClickListener(new AdapterView.OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View viewClicked, int position, long id) {
String convFrom = ((TextView) viewClicked).getText().toString();
CF = convFrom;
}
});
listMassTo.setOnItemClickListener(new AdapterView.OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View viewClicked, int position, long id) {
String convTo = ((TextView) viewClicked).getText().toString();
CT = convTo;
}
});
//Test to see if the two string were extracted from the onItemClick method:
TextView t1 = (TextView) findViewById(R.id.test1);
t1.setText(CT);
TextView t2 = (TextView) findViewById(R.id.test2);
t2.setText(CF);
}
}

You should access items via adapters using the parameter position.
Supposing your adapter contains Strings (Otherwise adapt it to your data model):
public void onItemClick(AdapterView<?> parent, View viewClicked, int position, long id) {
CF = <listMassFrom_adapter>.getItem(position);
}
EDIT:
Example tested and working. You can see a toast when items are selected.
package com.example;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
import com.example.testbutton.R;
public class Tabs extends Activity {
final static String[] MassUnits = { "kg", "g", "mg", "lb", "lbm", "slug" };
String CF = ""; // Convert To
String CT = ""; // Convert From
ListView listMassFrom, listMassTo;
ListAdapter adapterFrom, adapterTo;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tabs);
// Find views
listMassFrom = (ListView) findViewById(R.id.lvFrom);
listMassTo = (ListView) findViewById(R.id.lvTo);
// Create list of items
adapterFrom = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, MassUnits);
listMassFrom.setAdapter(adapterFrom);
adapterTo = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, MassUnits);
listMassTo.setAdapter(adapterTo);
listMassFrom
.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent,
View viewClicked, int position, long id) {
String convFrom = (String) adapterFrom
.getItem(position);
Toast.makeText(getApplicationContext(),
"From: " + convFrom, Toast.LENGTH_SHORT).show();
}
});
listMassTo
.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent,
View viewClicked, int position, long id) {
String convTo = (String) adapterTo.getItem(position);
Toast.makeText(getApplicationContext(),
"To: " + convTo, Toast.LENGTH_SHORT).show();
}
});
}
}
Layout tabs.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView
android:id="#+id/lvFrom"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<ListView
android:id="#+id/lvTo"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
I think it is better to use spinners, but you can adapt the code if that's the case.

Android - ListFragment OnClickListener is not working

I have a ListFragment in my android application, I have got it to work, but the OnClick Listener is not working, I tried just making it so that when any item on the list is selcted a Toast appears and it is not happening, there is no Error so I have no LogCat to post
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View v = inflater.inflate(R.layout.main, container, false);
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
//...
ListAdapter adapter = new SimpleAdapter(getActivity(), menuItems,
R.layout.list_item,
new String[] { KEY_NAME, KEY_DESC, KEY_COST }, new int[] {
R.id.name, R.id.desciption, R.id.cost });
setListAdapter(adapter);
ListView lv = (ListView)v.findViewById(android.R.id.list);
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
Toast.makeText(getActivity().getApplicationContext(), "Not Configured",
Toast.LENGTH_SHORT).show();
}
});
return v;
}
Thanks

if your class extends ListFragment than everything you need to do is just overriding its onListItemClick method.
#Override
public void onListItemClick(ListView l, View v, int pos, long id) {
super.onListItemClick(l, v, pos, id);
Toast.makeText(getActivity(), "Item " + pos + " was clicked", Toast.LENGTH_SHORT).show();
}

The ListFragment subclass already has it's overriden onListItemClick method.
The doc says:
This method will be called when an item in the list is selected. Subclasses should override
So there is no need to declare another listner for your listview.

Removing .getApplicationContext() should work. I have some code similar to yours from an app I made. Its from inside a fragment as well though works without problem. The db.remove is probably irrelevant to your code though because this code was written for an app with a database. Also maybe try changing new OnItemClickListener to new AdapterView.OnItemClickListener
listItem.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
db.remove( (int) l);
Toast.makeText(getActivity(), "Item Deleted", Toast.LENGTH_LONG).show();
}
});
If that doesn't work, maybe try making a Context instance variable like:
private Context ctx = getActivity();
or
private final Context ctx = getActivity();
I have never worked with ListFragments before though, so I am not sure if anything I wrote will work.

put
android:focusable="false"
android:clickable="false"
to all itens in your row

Make sure you
1.shouldn't have onclicklistener inside your Adapter
2.inside your XML layout
R.layout.main
Listview should be initialized like
<ListView
android:onClick="#id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/textHeader"
android:layout_margin="5dp"
android:divider="#color/DeepPink"
android:dividerHeight="1sp"
android:gravity="center"
android:horizontalSpacing="1dp"
android:visibility="visible" >
here id android:onClick="#id/list" important
ListView should be initialize like ListView lv = getListView if your extending your fragment by ListFragment instead Fragment

How to make an Android Spinner with initial text "Select One"?

I want to use a Spinner that initially (when the user has not made a selection yet) displays the text "Select One". When the user clicks the spinner, the list of items is displayed and the user selects one of the options. After the user has made a selection, the selected item is displayed in the Spinner instead of "Select One".
I have the following code to create a Spinner:
String[] items = new String[] {"One", "Two", "Three"};
Spinner spinner = (Spinner) findViewById(R.id.mySpinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, items);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
With this code, initially the item "One" is displayed. I could just add a new item "Select One" to the items, but then "Select One" would also be displayed in the dropdown list as first item, which is not what I want.
How can I fix this problem?

What you can do is decorate your SpinnerAdapter with one that presents a 'Select Option...' View initially for the Spinner to display with nothing selected.
Here is a working example tested for Android 2.3, and 4.0 (it uses nothing in the compatibility library, so it should be fine for awhile) Since it's a decorator, it should be easy to retrofit existing code and it works fine with CursorLoaders also. (Swap cursor on the wrapped cursorAdapter of course...)
There is an Android bug that makes this a little tougher to re-use views. (So you have to use the setTag or something else to ensure your convertView is correct.) Spinner does not support multiple view types
Code notes: 2 constructors
This allows you to use a standard prompt or define your own 'nothing selected' as the first row, or both, or none. (Note: Some themes show a DropDown for a Spinner instead of a dialog. The Dropdown doesn't normally show the prompt)
You define a layout to 'look' like a prompt, for example, grayed out...
Using a standard prompt (notice that nothing is selected):
Or with a prompt and something dynamic (could have had no prompt also):
Usage in above example
Spinner spinner = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.planets_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setPrompt("Select your favorite Planet!");
spinner.setAdapter(
new NothingSelectedSpinnerAdapter(
adapter,
R.layout.contact_spinner_row_nothing_selected,
// R.layout.contact_spinner_nothing_selected_dropdown, // Optional
this));
contact_spinner_row_nothing_selected.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/text1"
style="?android:attr/spinnerItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:textSize="18sp"
android:textColor="#808080"
android:text="[Select a Planet...]" />
NothingSelectedSpinnerAdapter.java
import android.content.Context;
import android.database.DataSetObserver;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.SpinnerAdapter;
/**
* Decorator Adapter to allow a Spinner to show a 'Nothing Selected...' initially
* displayed instead of the first choice in the Adapter.
*/
public class NothingSelectedSpinnerAdapter implements SpinnerAdapter, ListAdapter {
protected static final int EXTRA = 1;
protected SpinnerAdapter adapter;
protected Context context;
protected int nothingSelectedLayout;
protected int nothingSelectedDropdownLayout;
protected LayoutInflater layoutInflater;
/**
* Use this constructor to have NO 'Select One...' item, instead use
* the standard prompt or nothing at all.
* #param spinnerAdapter wrapped Adapter.
* #param nothingSelectedLayout layout for nothing selected, perhaps
* you want text grayed out like a prompt...
* #param context
*/
public NothingSelectedSpinnerAdapter(
SpinnerAdapter spinnerAdapter,
int nothingSelectedLayout, Context context) {
this(spinnerAdapter, nothingSelectedLayout, -1, context);
}
/**
* Use this constructor to Define your 'Select One...' layout as the first
* row in the returned choices.
* If you do this, you probably don't want a prompt on your spinner or it'll
* have two 'Select' rows.
* #param spinnerAdapter wrapped Adapter. Should probably return false for isEnabled(0)
* #param nothingSelectedLayout layout for nothing selected, perhaps you want
* text grayed out like a prompt...
* #param nothingSelectedDropdownLayout layout for your 'Select an Item...' in
* the dropdown.
* #param context
*/
public NothingSelectedSpinnerAdapter(SpinnerAdapter spinnerAdapter,
int nothingSelectedLayout, int nothingSelectedDropdownLayout, Context context) {
this.adapter = spinnerAdapter;
this.context = context;
this.nothingSelectedLayout = nothingSelectedLayout;
this.nothingSelectedDropdownLayout = nothingSelectedDropdownLayout;
layoutInflater = LayoutInflater.from(context);
}
#Override
public final View getView(int position, View convertView, ViewGroup parent) {
// This provides the View for the Selected Item in the Spinner, not
// the dropdown (unless dropdownView is not set).
if (position == 0) {
return getNothingSelectedView(parent);
}
return adapter.getView(position - EXTRA, null, parent); // Could re-use
// the convertView if possible.
}
/**
* View to show in Spinner with Nothing Selected
* Override this to do something dynamic... e.g. "37 Options Found"
* #param parent
* #return
*/
protected View getNothingSelectedView(ViewGroup parent) {
return layoutInflater.inflate(nothingSelectedLayout, parent, false);
}
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
// Android BUG! http://code.google.com/p/android/issues/detail?id=17128 -
// Spinner does not support multiple view types
if (position == 0) {
return nothingSelectedDropdownLayout == -1 ?
new View(context) :
getNothingSelectedDropdownView(parent);
}
// Could re-use the convertView if possible, use setTag...
return adapter.getDropDownView(position - EXTRA, null, parent);
}
/**
* Override this to do something dynamic... For example, "Pick your favorite
* of these 37".
* #param parent
* #return
*/
protected View getNothingSelectedDropdownView(ViewGroup parent) {
return layoutInflater.inflate(nothingSelectedDropdownLayout, parent, false);
}
#Override
public int getCount() {
int count = adapter.getCount();
return count == 0 ? 0 : count + EXTRA;
}
#Override
public Object getItem(int position) {
return position == 0 ? null : adapter.getItem(position - EXTRA);
}
#Override
public int getItemViewType(int position) {
return 0;
}
#Override
public int getViewTypeCount() {
return 1;
}
#Override
public long getItemId(int position) {
return position >= EXTRA ? adapter.getItemId(position - EXTRA) : position - EXTRA;
}
#Override
public boolean hasStableIds() {
return adapter.hasStableIds();
}
#Override
public boolean isEmpty() {
return adapter.isEmpty();
}
#Override
public void registerDataSetObserver(DataSetObserver observer) {
adapter.registerDataSetObserver(observer);
}
#Override
public void unregisterDataSetObserver(DataSetObserver observer) {
adapter.unregisterDataSetObserver(observer);
}
#Override
public boolean areAllItemsEnabled() {
return false;
}
#Override
public boolean isEnabled(int position) {
return position != 0; // Don't allow the 'nothing selected'
// item to be picked.
}
}

Here's a general solution that overrides the Spinner view. It overrides setAdapter() to set the initial position to -1, and proxies the supplied SpinnerAdapter to display the prompt string for position less than 0.
This has been tested on Android 1.5 through 4.2, but buyer beware! Because this solution relies on reflection to call the private AdapterView.setNextSelectedPositionInt() and AdapterView.setSelectedPositionInt(), it's not guaranteed to work in future OS updates. It seems likely that it will, but it is by no means guaranteed.
Normally I wouldn't condone something like this, but this question has been asked enough times and it seems like a reasonable enough request that I thought I would post my solution.
/**
* A modified Spinner that doesn't automatically select the first entry in the list.
*
* Shows the prompt if nothing is selected.
*
* Limitations: does not display prompt if the entry list is empty.
*/
public class NoDefaultSpinner extends Spinner {
public NoDefaultSpinner(Context context) {
super(context);
}
public NoDefaultSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NoDefaultSpinner(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void setAdapter(SpinnerAdapter orig ) {
final SpinnerAdapter adapter = newProxy(orig);
super.setAdapter(adapter);
try {
final Method m = AdapterView.class.getDeclaredMethod(
"setNextSelectedPositionInt",int.class);
m.setAccessible(true);
m.invoke(this,-1);
final Method n = AdapterView.class.getDeclaredMethod(
"setSelectedPositionInt",int.class);
n.setAccessible(true);
n.invoke(this,-1);
}
catch( Exception e ) {
throw new RuntimeException(e);
}
}
protected SpinnerAdapter newProxy(SpinnerAdapter obj) {
return (SpinnerAdapter) java.lang.reflect.Proxy.newProxyInstance(
obj.getClass().getClassLoader(),
new Class[]{SpinnerAdapter.class},
new SpinnerAdapterProxy(obj));
}
/**
* Intercepts getView() to display the prompt if position < 0
*/
protected class SpinnerAdapterProxy implements InvocationHandler {
protected SpinnerAdapter obj;
protected Method getView;
protected SpinnerAdapterProxy(SpinnerAdapter obj) {
this.obj = obj;
try {
this.getView = SpinnerAdapter.class.getMethod(
"getView",int.class,View.class,ViewGroup.class);
}
catch( Exception e ) {
throw new RuntimeException(e);
}
}
public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
try {
return m.equals(getView) &&
(Integer)(args[0])<0 ?
getView((Integer)args[0],(View)args[1],(ViewGroup)args[2]) :
m.invoke(obj, args);
}
catch (InvocationTargetException e) {
throw e.getTargetException();
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
protected View getView(int position, View convertView, ViewGroup parent)
throws IllegalAccessException {
if( position<0 ) {
final TextView v =
(TextView) ((LayoutInflater)getContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE)).inflate(
android.R.layout.simple_spinner_item,parent,false);
v.setText(getPrompt());
return v;
}
return obj.getView(position,convertView,parent);
}
}
}

I ended up using a Button instead. While a Button is not a Spinner, the behavior is easy to customize.
First create the Adapter as usual:
String[] items = new String[] {"One", "Two", "Three"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_dropdown_item, items);
Note that I am using the simple_spinner_dropdown_item as the layout id. This will help create a better look when creating the alert dialog.
In the onClick handler for my Button I have:
public void onClick(View w) {
new AlertDialog.Builder(this)
.setTitle("the prompt")
.setAdapter(adapter, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO: user specific action
dialog.dismiss();
}
}).create().show();
}
And that's it!

First, you might be interested in the prompt attribute of the Spinner class. See the picture below, "Choose a Planet" is the prompt that can be set in the XML with android:prompt="".
I was going to suggest subclassing Spinner, where you could maintain two adapters internally. One adapter that has the "Select One" option, and the other real adapter (with the actual options), then using the OnClickListener to switch the adapters before the choices dialog is shown. However, after trying implement that idea I've come to the conclusion you cannot receive OnClick events for the widget itself.
You could wrap the spinner in a different view, intercept the clicks on the view, and then tell your CustomSpinner to switch the adapter, but seems like an awful hack.
Do you really need to show "Select One"?

This code has been tested and works on Android 4.4
Spinner spinner = (Spinner) activity.findViewById(R.id.spinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(activity, android.R.layout.simple_spinner_dropdown_item) {
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
if (position == getCount()) {
((TextView)v.findViewById(android.R.id.text1)).setText("");
((TextView)v.findViewById(android.R.id.text1)).setHint(getItem(getCount())); //"Hint to be displayed"
}
return v;
}
#Override
public int getCount() {
return super.getCount()-1; // you dont display last item. It is used as hint.
}
};
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
adapter.add("Daily");
adapter.add("Two Days");
adapter.add("Weekly");
adapter.add("Monthly");
adapter.add("Three Months");
adapter.add("HINT_TEXT_HERE"); //This is the text that will be displayed as hint.
spinner.setAdapter(adapter);
spinner.setSelection(adapter.getCount()); //set the hint the default selection so it appears on launch.
spinner.setOnItemSelectedListener(this);

I found this solution:
String[] items = new String[] {"Select One", "Two", "Three"};
Spinner spinner = (Spinner) findViewById(R.id.mySpinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, items);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {
items[0] = "One";
selectedItem = items[position];
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
Just change the array[0] with "Select One" and then in the onItemSelected, rename it to "One".
Not a classy solution, but it works :D

Lots of answers here but I'm surprised no one suggested a simple solution: Place a TextView on top of the Spinner. Set a click listener on the TextView which hides the TextView shows the Spinner, and calls spinner.performClick().

There is no default API to set hint on Spinner. To add it we need a small workaround with out that not safety reflection implementation
List<Object> objects = new ArrayList<Object>();
objects.add(firstItem);
objects.add(secondItem);
// add hint as last item
objects.add(hint);
HintAdapter adapter = new HintAdapter(context, objects, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Spinner spinnerFilmType = (Spinner) findViewById(R.id.spinner);
spinner.setAdapter(adapter);
// show hint
spinner.setSelection(adapter.getCount());
Adapter source:
public class HintAdapter
extends ArrayAdapter<Objects> {
public HintAdapter(Context theContext, List<Object> objects) {
super(theContext, android.R.id.text1, android.R.id.text1, objects);
}
public HintAdapter(Context theContext, List<Object> objects, int theLayoutResId) {
super(theContext, theLayoutResId, android.R.id.text1, objects);
}
#Override
public int getCount() {
// don't display last item. It is used as hint.
int count = super.getCount();
return count > 0 ? count - 1 : count;
}
}
Original source

I got the same problem for spinner, with an empty selection, and I found a better solution. Have a look at this simple code.
Spinner lCreditOrDebit = (Spinner)lCardPayView.findViewById(R.id.CARD_TYPE);
spinneradapter lAdapter =
new spinneradapter(
BillPayScreen.this,
ndroid.R.layout.simple_spinner_item,getResources().getStringArray(R.array.creditordebit));
lAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
lCreditOrDebit.setAdapter(lAdapter);
Here spinneradapter is a small customization for arrayadapter. It looks like this:
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
public class spinneradapter extends ArrayAdapter<String>{
private Context m_cContext;
public spinneradapter(Context context,int textViewResourceId, String[] objects) {
super(context, textViewResourceId, objects);
this.m_cContext = context;
}
boolean firsttime = true;
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if(firsttime){
firsttime = false;
//Just return some empty view
return new ImageView(m_cContext);
}
//Let the array adapter take care of it this time.
return super.getView(position, convertView, parent);
}
}

You can change it to a Text View and use this:
android:style="#android:style/Widget.DeviceDefault.Light.Spinner"
and then define the android:text property.

XML file:
<Spinner android:id="#+id/locationSpinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="#string/select_location" />
Activity:
private Spinner featuresSelection;
private ArrayAdapter<CharSequence> featuresAdapter;
private List<CharSequence> featuresList;
onCreate:
featuresList = new ArrayList<CharSequence>();
featuresAdapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_spinner_item, featuresList);
featuresAdapter.setDropDownViewResource(
android.R.layout.simple_spinner_dropdown_item);
featuresSelection = ((Spinner) yourActivity.this
.findViewById(R.id.locationSpinner));
featuresSelection.setAdapter(featuresAdapter);
featuresSelection.setOnItemSelectedListener(
new MyOnItemSelectedListener());
Some function (add things to the adapter programmatically)>
featuresAdapter.add("some string");
Now you have an empty spinner and you can write code to not open the dialog if empty. Or they can press back. But you also populate it with a function or another list during run time.

In addition, There is a simple trick to show default:
You can add a default value in your list and then add all of your collection using list.addAll(yourCollection);
Sample workable code here:
List<FuelName> fuelList = new ArrayList<FuelName>();
fuelList.add(new FuelName(0,"Select One"));
fuelList.addAll(response.body());
ArrayAdapter adapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_spinner_item, fuelList);
//fuelName.setPrompt("Select Fuel");
fuelName.setAdapter(adapter);

I have a spinner on my main.xml and its id is #+id/spinner1
this is what i write in my OnCreate function :
spinner1 = (Spinner)this.findViewById(R.id.spinner1);
final String[] groupes = new String[] {"A", "B", "C", "D", "E", "F", "G", "H"};
ArrayAdapter<CharSequence> featuresAdapter = new ArrayAdapter<CharSequence>(this, android.R.layout.simple_spinner_item, new ArrayList<CharSequence>());
featuresAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(featuresAdapter);
for (String s : groupes) featuresAdapter.add(s);
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {
// Here go your instructions when the user chose something
Toast.makeText(getBaseContext(), groupes[position], 0).show();
}
public void onNothingSelected(AdapterView<?> arg0) { }
});
It doesn't need any implementation in the class.

I have tried like the following. Take a button and give the click event to it. By changing the button background, it seems to be a spinner.
Declare as global variables alertdialog and default value..
AlertDialog d;
static int default_value = 0;
final Button btn = (Button) findViewById(R.id.button1);
btn .setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v)
{
//c.show();
final CharSequence str[] = {"Android","Black Berry","Iphone"};
AlertDialog.Builder builder =
new AlertDialog.Builder(TestGalleryActivity.this).setSingleChoiceItems(
str, default_value,new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int position)
{
Toast.makeText(TestGalleryActivity.this,
"" + position,
Toast.LENGTH_SHORT).show();
default_value = position;
btn.setText(str[position]);
if(d.isShowing())
d.dismiss();
}
}).setTitle("Select Any");
d = builder.create();
d.show();
}
});

Take a look at the iosched app for a general purpose solution to adding an element to the top of a list. In particular, if you are using a CursorAdapter, look at TracksAdapter.java which extends that definition to provide a "setHasAllItem" method and associated code to manage the list count to deal with the extra item at the top.
Using the custom adapter you can set the text to "Select One" or whatever else you may want that top item to say.

I found many good solutions for this. most is working by adding an item to the end of adapter, and don't display the last item in drop-down list.
The big problem for me was the spinner drop-down list will start from the bottom of the list. So user see the last items instead of the first items (in case of have many items to show), after touch the spinner for the first time.
So I put the hint item to the beginning of the list. and hide the first item in drop-down list.
private void loadSpinner(){
HintArrayAdapter hintAdapter = new HintArrayAdapter<String>(context, 0);
hintAdapter.add("Hint to be displayed");
hintAdapter.add("Item 1");
hintAdapter.add("Item 2");
.
.
hintAdapter.add("Item 30");
spinner1.setAdapter(hintAdapter);
//spinner1.setSelection(0); //display hint. Actually you can ignore it, because the default is already 0
//spinner1.setSelection(0, false); //use this if don't want to onItemClick called for the hint
spinner1.setOnItemSelectedListener(yourListener);
}
private class HintArrayAdapter<T> extends ArrayAdapter<T> {
Context mContext;
public HintArrayAdapter(Context context, int resource) {
super(context, resource);
this.mContext = context
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(android.R.layout.simple_spinner_item, parent, false);
TextView texview = (TextView) view.findViewById(android.R.id.text1);
if(position == 0) {
texview.setText("");
texview.setHint(getItem(position).toString()); //"Hint to be displayed"
} else {
texview.setText(getItem(position).toString());
}
return view;
}
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
View view;
if(position == 0){
view = inflater.inflate(R.layout.spinner_hint_list_item_layout, parent, false); // Hide first row
} else {
view = inflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent, false);
TextView texview = (TextView) view.findViewById(android.R.id.text1);
texview.setText(getItem(position).toString());
}
return view;
}
}
set the below layout in #Override getDropDownView() when position is 0, to hide the first hint row.
R.layout.spinner_hint_list_item_layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</LinearLayout>

I think the easiest way is creating a dummy item on index 0 saying "select one" and then on saving maybe check that selection is not 0.

So this is my final example "all-in" for a button-spinner
In activity_my_form.xml
<Button
android:id="#+id/btnSpinnerPlanets"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="left|center_vertical"
android:singleLine="true"
android:text="#string/selectAPlanet"
android:textSize="10sp"
android:background="#android:drawable/btn_dropdown">
</Button>
In strings.xml
<string name="selectAPlanet">Select planet…</string>
<string-array name="planets__entries">
<item>The Sun with a name very long so long long long long longThe Sun with a name very long so long long long long longThe Sun with a name very long so long long long long long</item>
<item>Mercury</item>
<item>Venus</item>
<item>Earth</item>
<item>Mars</item>
<item>Jupiter</item>
<item>Saturn</item>
<item>Uranus</item>
<item>Neptune</item>
</string-array>
In MyFormActivity.java
public class MyFormActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
((Button) findViewById(R.id.btnSpinnerPlanets)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final String[] items = view.getResources().getStringArray(R.array.planets__entries);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(MyFormActivity.this, android.R.layout.simple_spinner_dropdown_item, items);
new AlertDialog.Builder(MyFormActivity.this).setTitle("the prompt").setAdapter(adapter, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
((Button) findViewById(R.id.btnSpinnerPlanets)).setText(items[which]);
dialog.dismiss();
}
}).create().show();
}
});
}
}
Finally I obtained a font size configurable no first item selectable button spinner!!!
Thanks to HRJ

The best solution I found for this is actually not to use a Spinner but an AutoCompleteTextView. Its basically an EditText with attached Spinner to show suggestions as you type - but, with the right config, it can behave exactly as the OP wishes and more.
XML:
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/item"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.appcompat.widget.AppCompatAutoCompleteTextView
android:id="#+id/input"
android:hint="Select one"
style="#style/AutoCompleteTextViewDropDown"/>
</com.google.android.material.textfield.TextInputLayout>
Style:
<style name="AutoCompleteTextViewDropDown">
<item name="android:clickable">false</item>
<item name="android:cursorVisible">false</item>
<item name="android:focusable">false</item>
<item name="android:focusableInTouchMode">false</item>
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">wrap_content</item>
</style>
As for the adapter use the basic ArrayAdapter or extend it to make your own, but no additional customization on the adapter side is necessary. Set the adapter on the AutoCompleteTextView.

When extending SpinnerAdapter, you override two View-producing methods, getView(int, View, ViewGroup) and getDropDownView(int, View, ViewGroup). The first one supplies the View inserted into the Spinner itself; the second supplies the View in the drop-down list (as the name suggests). You can override the getView(...) so that, until an item has been selected, it displays a TextView containing a prompt; then, when you detect an item has been selected, you change it to display a TextView corresponding to that.
public class PromptingAdapter extends SpinnerAdapter {
//... various code ...
private boolean selectionmade = false;
//call this method from the OnItemSelectedListener for your Spinner
public setSelectionState(boolean b) {
selectionmade = b;
}
#Override
public View getView(int position, View recycle, ViewGroup container) {
if(selectionmade) {
//your existing code to supply a View for the Spinner
//you could even put "return getDropDownView(position, recycle, container);"
}
else {
View output;
if(recycle instanceof TextView) {
output = recycle;
}
else {
output = new TextView();
//and layout stuff
}
output.setText(R.string.please_select_one);
//put a string "please_select_one" in res/values/strings.xml
return output;
}
}
//...
}

For those using Xamarin, here is the C# equivalent to aaronvargas's answer above.
using Android.Content;
using Android.Database;
using Android.Views;
using Android.Widget;
using Java.Lang;
namespace MyNamespace.Droid
{
public class NothingSelectedSpinnerAdapter : BaseAdapter, ISpinnerAdapter, IListAdapter
{
protected static readonly int EXTRA = 1;
protected ISpinnerAdapter adapter;
protected Context context;
protected int nothingSelectedLayout;
protected int nothingSelectedDropdownLayout;
protected LayoutInflater layoutInflater;
public NothingSelectedSpinnerAdapter(ISpinnerAdapter spinnerAdapter, int nothingSelectedLayout, Context context) : this(spinnerAdapter, nothingSelectedLayout, -1, context)
{
}
public NothingSelectedSpinnerAdapter(ISpinnerAdapter spinnerAdapter, int nothingSelectedLayout, int nothingSelectedDropdownLayout, Context context)
{
this.adapter = spinnerAdapter;
this.context = context;
this.nothingSelectedLayout = nothingSelectedLayout;
this.nothingSelectedDropdownLayout = nothingSelectedDropdownLayout;
layoutInflater = LayoutInflater.From(context);
}
protected View GetNothingSelectedView(ViewGroup parent)
{
return layoutInflater.Inflate(nothingSelectedLayout, parent, false);
}
protected View GetNothingSelectedDropdownView(ViewGroup parent)
{
return layoutInflater.Inflate(nothingSelectedDropdownLayout, parent, false);
}
public override Object GetItem(int position)
{
return position == 0 ? null : adapter.GetItem(position - EXTRA);
}
public override long GetItemId(int position)
{
return position >= EXTRA ? adapter.GetItemId(position - EXTRA) : position - EXTRA;
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
// This provides the View for the Selected Item in the Spinner, not
// the dropdown (unless dropdownView is not set).
if (position == 0)
{
return GetNothingSelectedView(parent);
}
// Could re-use the convertView if possible.
return this.adapter.GetView(position - EXTRA, null, parent);
}
public override int Count
{
get
{
int count = this.adapter.Count;
return count == 0 ? 0 : count + EXTRA;
}
}
public override View GetDropDownView(int position, View convertView, ViewGroup parent)
{
// Android BUG! http://code.google.com/p/android/issues/detail?id=17128 -
// Spinner does not support multiple view types
if (position == 0)
{
return nothingSelectedDropdownLayout == -1 ?
new View(context) :
GetNothingSelectedDropdownView(parent);
}
// Could re-use the convertView if possible, use setTag...
return adapter.GetDropDownView(position - EXTRA, null, parent);
}
public override int GetItemViewType(int position)
{
return 0;
}
public override int ViewTypeCount => 1;
public override bool HasStableIds => this.adapter.HasStableIds;
public override bool IsEmpty => this.adapter.IsEmpty;
public override void RegisterDataSetObserver(DataSetObserver observer)
{
adapter.RegisterDataSetObserver(observer);
}
public override void UnregisterDataSetObserver(DataSetObserver observer)
{
adapter.UnregisterDataSetObserver(observer);
}
public override bool AreAllItemsEnabled()
{
return false;
}
public override bool IsEnabled(int position)
{
return position > 0;
}
}
}

I also solved this problem by using the following code. Suppose you are having a list of items e.g.
ArrayList<Item> itemsArrayList = new ArrayList<Item>();
Item item1 = new Item();
item1.setId(1);
item1.setData("First Element");
Item item2 = new Item();
item2.setId(2);
Item2.setData("Second Element");
itemsArrayList.add(item1);
itemsArrayList.add(item2);
Now we have to provide the strings to spinner because spinner can not understand the object. So we will create an new array list with string items like this ->
ArrayList<String> itemStringArrayList = new ArrayList<String>();
for(Item item : itemsArrayList) {
itemStringArrayList.add(item.getData());
}
Now we have itemStringArrayList array list with two string items. And we have to show the "Select Item" text as first item. So we have to insert an new string into the itemStringArrayList.
itemStringArrayList.add("Select Item");
Now we have an array list itemsArrayList and we want to show two elements in the drop down. But the condition here is ...If we don't select anything then Select Item should appear as first element which will not be enabled.
So we can implement this functionality like this. If you need to load the array list items into the android spinner. So you will have to use some adapter. So here i'll use the ArrayAdapter. We can use the customise adapter too.
ArrayAdapter<String> itemsArrayAdapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.spinner_item, itemsArrayList){
#Override
public boolean isEnabled(int position) {
if(position == 0)
{
return false;
}
else
{
return true;
}
}
#Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
View view = super.getDropDownView(position, convertView, parent);
TextView tv = (TextView) view;
if(position == 0){
// Set the hint text color gray
tv.setTextColor(Color.GRAY);
}
else {
tv.setTextColor(Color.BLACK);
}
return view;
}
};
itemsArrayAdapter.setDropDownViewResource(R.layout.spinner_item);
your_spinner_name.setAdapter(itemsArrayAdapter);
Here in this code. we are using the customised spinner layout i.e. R.layout.spinner_item. It's a simple text view
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:textStyle="italic"
android:fontFamily="sans-serif-medium"
/>
We need to disable the first text in the spinner. So for the position 0 we are disabling the text. And color also we can set by overiding getDropDownView method. So in this way we will get the expected spinner.

I was facing the same problem yesterday and did not want to add a hidden item to the ArrayAdapter or use reflections, which works fine but is kind of dirty.
After reading many posts and trying around I found a solution by extending ArrayAdapter and Overriding the getView method.
import android.content.Context;
import android.support.annotation.NonNull;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
/**
* A SpinnerAdapter which does not show the value of the initial selection initially,
* but an initialText.
* To use the spinner with initial selection instead call notifyDataSetChanged().
*/
public class SpinnerAdapterWithInitialText<T> extends ArrayAdapter<T> {
private Context context;
private int resource;
private boolean initialTextWasShown = false;
private String initialText = "Please select";
/**
* Constructor
*
* #param context The current context.
* #param resource The resource ID for a layout file containing a TextView to use when
* instantiating views.
* #param objects The objects to represent in the ListView.
*/
public SpinnerAdapterWithInitialText(#NonNull Context context, int resource, #NonNull T[] objects) {
super(context, resource, objects);
this.context = context;
this.resource = resource;
}
/**
* Returns whether the user has selected a spinner item, or if still the initial text is shown.
* #param spinner The spinner the SpinnerAdapterWithInitialText is assigned to.
* #return true if the user has selected a spinner item, false if not.
*/
public boolean selectionMade(Spinner spinner) {
return !((TextView)spinner.getSelectedView()).getText().toString().equals(initialText);
}
/**
* Returns a TextView with the initialText the first time getView is called.
* So the Spinner has an initialText which does not represent the selected item.
* To use the spinner with initial selection instead call notifyDataSetChanged(),
* after assigning the SpinnerAdapterWithInitialText.
*/
#Override
public View getView(int position, View recycle, ViewGroup container) {
if(initialTextWasShown) {
return super.getView(position, recycle, container);
} else {
initialTextWasShown = true;
LayoutInflater inflater = LayoutInflater.from(context);
final View view = inflater.inflate(resource, container, false);
((TextView) view).setText(initialText);
return view;
}
}
}
What Android does when initialising the Spinner, is calling getView for the selected item before calling getView for all items in T[] objects.
The SpinnerAdapterWithInitialText returns a TextView with the initialText, the first time it is called.
All the other times it calls super.getView which is the getView method of ArrayAdapter which is called if you are using the Spinner normally.
To find out whether the user has selected a spinner item, or if the spinner still displays the initialText, call selectionMade and hand over the spinner the adapter is assigned to.

See the answer with lightweight and high customisable library:
https://stackoverflow.com/a/73085435/6694920
<com.innowisegroup.hintedspinner.HintedSpinner
android:id="#+id/hintedSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginHorizontal="20dp"
app:hintTextSize="24sp"
app:hintTextColor="#color/red"
app:hint="Custom hint"
app:withDivider="true"
app:dividerColor="#color/dark_green"
app:arrowDrawable="#drawable/example_arrow_4"
app:arrowTint="#color/colorAccent"
app:popupBackground="#color/light_blue"
app:items="#array/text" />
Collapsed spinner:
Expanded spinner:

I'd just use a RadioGroup with RadioButtons if you only have three choices, you can make them all unchecked at first.

None of the previously submitted answers really worked the way I wanted to solve this issue. To me the ideal solution would provide the “Select One” (or whatever initial text) when the spinner is first displayed. When the user taps the spinner, the initial text shouldn’t be a part of the drop down that is displayed.
To further complicate my particular situation, my spinner data is coming form a cursor that is loaded via the LoaderManager callbacks.
After considerable experimentation I came up with the following solution:
public class MyFragment extends Fragment implements
LoaderManager.LoaderCallbacks<Cursor>{
private static final String SPINNER_INIT_VALUE = "Select A Widget";
private Spinner mSpinner;
private int mSpinnerPosition;
private boolean mSpinnerDropDownShowing = false;
private View mSpinnerDropDown;
private MyCursorAdapter mCursorAdapter;
...
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
...
mCursorAdapter = new MyCursorAdapter(getActivity());
mSpinner = (Spinner) rootView.findViewById(R.id.theSpinner);
mSpinner.setOnTouchListener(mSpinnerTouchListener);
mSpinner.setAdapter(mCursorAdapter);
...
}
//Capture the touch events to toggle the spinner's dropdown visibility
private OnTouchListener mSpinnerTouchListener = new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if(mSpinnerDropDown != null && mSpinnerDropDownShowing == false){
mSpinnerDropDownShowing = true;
mSpinnerDropDown.setVisibility(View.VISIBLE);
}
return false;
}
};
//Capture the click event on the spinner drop down items
protected OnClickListener spinnerItemClick = new OnClickListener(){
#Override
public void onClick(View view) {
String widget = ((TextView) view.findViewById(android.R.id.text1)).getText().toString();
if(!widget.equals(SPINNER_INIT_VALUE)){
if(mCursorAdapter != null){
Cursor cursor = mCursorAdapter.getCursor();
if(cursor.moveToFirst()){
while(!cursor.isAfterLast()){
if(widget.equals(cursor.getString(WidgetQuery.WIDGET_NAME))){
...
//Set the spinner to the correct item
mSpinnerPosition = cursor.getPosition() + 1;
mSpinner.setSelection(mSpinnerPosition);
break;
}
cursor.moveToNext();
}
}
}
}
//Hide the drop down. Not the most elegent solution but it is the only way I could hide/dismiss the drop down
mSpinnerDropDown = view.getRootView();
mSpinnerDropDownShowing = false;
mSpinnerDropDown.setVisibility(View.GONE);
}
};
private class MyCursorAdapter extends CursorAdapter {
private final int DISPLACEMENT = 1;
private final int DEFAULT_ITEM_ID = Integer.MAX_VALUE;
private Activity mActivity;
public MyCursorAdapter(Activity activity) {
super(activity, null, false);
mActivity = activity;
}
//When loading the regular views, inject the defualt item
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if(position == 0){
if(convertView == null){
convertView = mActivity.getLayoutInflater().inflate(R.layout.list_item_widget, parent, false);
}
return getDefaultItem(convertView);
}
return super.getView(position - DISPLACEMENT, convertView, parent);
}
//When loading the drop down views, set the onClickListener for each view
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent){
View view = super.getDropDownView(position, convertView, parent);
view.setOnClickListener(spinnerItemClick);
return view;
}
//The special default item that is being injected
private View getDefaultItem(View convertView){
TextView text = (TextView) convertView.findViewById(android.R.id.text1);
text.setText(SPINNER_INIT_VALUE);
return convertView;
}
#Override
public long getItemId(int position) {
if (position == 0) {
return DEFAULT_ITEM_ID;
}
return super.getItemId(position - DISPLACEMENT);
}
#Override
public boolean isEnabled(int position) {
return position == 0 ? true : super.isEnabled(position - DISPLACEMENT);
}
#Override
public int getViewTypeCount() {
return super.getViewTypeCount() + DISPLACEMENT;
}
#Override
public int getItemViewType(int position) {
if (position == 0) {
return super.getViewTypeCount();
}
return super.getItemViewType(position - DISPLACEMENT);
}
#Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mActivity.getLayoutInflater().inflate(R.layout.list_item_widget, parent, false);
}
#Override
public void bindView(View view, Context context, Cursor cursor){
if(cursor.isAfterLast()){
return;
}
TextView text = (TextView) view.findViewById(android.R.id.text1);
String WidgetName = cursor.getString(WidgetQuery.WIDGET_NAME);
text.setText(WidgetName);
}
}
}

I handle this by using a button instead of a Spinner. I have the sample project up on GitHub.
In the project, i'm displaying both the Spinner and button to show that they indeed look identical. Except the button you can set the initial text to whatever you want.
Here's what the activity looks like:
package com.stevebergamini.spinnerbutton;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Spinner;
public class MainActivity extends Activity {
Spinner spinner1;
Button button1;
AlertDialog ad;
String[] countries;
int selected = -1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
spinner1 = (Spinner) findViewById(R.id.spinner1);
button1 = (Button) findViewById(R.id.button1);
countries = getResources().getStringArray(R.array.country_names);
// You can also use an adapter for the allert dialog if you'd like
// ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, countries);
ad = new AlertDialog.Builder(MainActivity.this).setSingleChoiceItems(countries, selected,
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
button1.setText(countries[which]);
selected = which;
ad.dismiss();
}}).setTitle(R.string.select_country).create();
button1.setOnClickListener( new OnClickListener(){
#Override
public void onClick(View v) {
ad.getListView().setSelection(selected);
ad.show();
}});
}
}
NOTE: Yes, I realize that this is dependent on the applied Theme and the look will be slightly different if using Theme.Holo. However, if you're using one of the legacy themes such as Theme.Black, you're good to go.

Seems a banal solution but I usually put simply a TextView in the front of the spinner. The whole Xml looks like this. (hey guys, don't shoot me, I know that some of you don't like this kind of marriage):
<FrameLayout
android:id="#+id/selectTypesLinear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<Spinner
android:id="#+id/spinnerExercises"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:entries="#array/exercise_spinner_entries"
android:prompt="#string/exercise_spinner_prompt"
/>
<TextView
android:id="#+id/spinnerSelectText"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Hey! Select this guy!"
android:gravity="center"
android:background="#FF000000" />
</FrameLayout>
Then I hide the TextView when an Item was selected. Obviously the background color of the TextView should be the same as the Spinner. Works on Android 4.0. Don't know on older versions.
Yes. Because the Spinner calls setOnItemSelectedListener at the beginning, the hiding of the textview could be a little bit tricky, but can be done this way:
Boolean controlTouched;
exerciseSpinner.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
controlTouched = true; // I touched it but but not yet selected an Item.
return false;
}
});
exerciseSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
if (controlTouched) { // Are you sure that I touched it with my fingers and not someone else ?
spinnerSelText.setVisibility(View.GONE);
}
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});

for me it worked something like this. has the improvement that only changes the text in SOME options, not in all.
First i take the names of the spinner and create the arrayadapter with a customize view, but it doesn't matter now, the key is override the getView, and inside change the values u need to change. In my case was only the first one, the rest i leave the original
public void rellenarSpinnerCompeticiones(){
spinnerArrayCompeticiones = new ArrayList<String>();
for(Competicion c: ((Controlador)getApplication()).getCompeticiones()){
spinnerArrayCompeticiones.add(c.getNombre());
}
//ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this,R.layout.spinner_item_competicion,spinnerArrayCompeticiones);
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this, R.layout.spinner_item_competicion, spinnerArrayCompeticiones){
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View v = vi.inflate(R.layout.spinner_item_competicion, null);
final TextView t = (TextView)v.findViewById(R.id.tvCompeticion);
if(spinnerCompeticion.getSelectedItemPosition()>0){
t.setText(spinnerArrayCompeticiones.get(spinnerCompeticion.getSelectedItemPosition()));
}else{
t.setText("Competiciones");
}
return v;
}
};
spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerCompeticion.setAdapter(spinnerArrayAdapter);
}

Refer to one of the above answers: https://stackoverflow.com/a/23005376/1312796
I added my code to fix a little bug. That where no data retrieved..How to show the prompt text..!
Here is my Trick...It works fine with me. !
Try to put your spinner in a Relative_layoutand align a Textview with your spinner and play with the visibility of the Textview (SHOW/HIDE) whenever the adapter of the spinner loaded or empty..Like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="20dp"
android:background="#ededed"
android:orientation="vertical">
<TextView
android:id="#+id/txt_prompt_from"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:textColor="#color/gray"
android:textSize="16sp"
android:layout_alignStart="#+id/sp_from"
android:text="From"
android:visibility="gone"/>
<Spinner
android:id="#+id/sp_from"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
/>
Here is the code:
txt__from = (TextView) rootView.findViewById(R.id.txt_prompt_from);
call this method after and before spinner adapter loaded and empty.
setPromptTextViewVisibility (); //True or fales
public void setPromptTextViewVisibility (boolean visible )
{
if (visible)
{
txt_from.setVisibility(View.VISIBLE);
}
else
{
txt_from.setVisibility(View.INVISIBLE);
}
}

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