Develop Reference

How to setOnItemSelectedListener on several Dynamically created spinners

I have an Activity where I need to create 1 or more spinners dynamically according to an external DB.
SOme of this spinner items have to show a dialog according what value does the spinner has. For example the spinner has this options:
-Own
-Rental
-Family House
If the user selects Rental I have to show a dialog (or anything) asking him how much does he pays per month. If he selects own, or family nothing should happen.
After I create the layout with the spinners, edittexts, etc. Im using something like this:
for(int q=0;q<=parent.getChildCount();q++){
View v = parent.getChildAt(q);
if (v instanceof Spinner) {
Spinner res = (Spinner) v;
res.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
//Here its supposed to show dialog if the option is "RENT"
}
public void onNothingSelected(AdapterView<?> adapterView) {
return;
}
});
}
}
The problem is that when I do this the "setOnItemSelectedListener" only sets for the last spinner on the layout.
How can I do what Im trying? I dont know what else to do.

The easiest solution would probably be to make one Listener as a variable and use that for all of your spinners. To do this, you would not set it as you are currently (using the anonymous inner-class style) and instead would do this:
//This goes outside of the method
private AdapterView.OnItemSelectedListener listener =
new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
System.out.println("Spinner Selected ID = " + parent.getId());
/*
Put a check here for which one is being selected.
While you could use the parent to check, in your case, it will be easier
to use something from your DB table as a unique identifier (maybe a column
name would be ideal? Your pick)
*/
//Show your dialogs here
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
return;
}
};
//This is the method you have where you are iterating the parent object
private void doStuff(){
for(int q=0;q<=parent.getChildCount();q++){
View v = parent.getChildAt(q);
if (v instanceof Spinner) {
Spinner res = (Spinner) v;
res.setOnItemSelectedListener(listener);
}
}
}
Good luck to ya!

Get element from the selected item in the listView

Stackoverflow has really helped me get to this level. Thank you all.
Basically, I want to get an element (sub-part not the whole data) from the selected item in a ListView. I've read here that it could be done using Cursors but no success. This is the associated snippet:
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Cursor member = (Cursor)parent.getItemAtPosition(position);
Toast.makeText(getApplicationContext(),
"Click ListItem Number "+member.getString(2), Toast.LENGTH_LONG)
.show();
}
});
parent.getItemAtPosition(position) gives me the (Array, I suppose):
{name="xyz_name", uname="xyz_user", desig="xyz_desig"} correctly.
I want to, suppose, fetch unamefrom this, so, have used Cursor to fetch it but the above snippet is giving the error,
java.lang.ClassCastException: java.util.HashMap cannot be cast to android.database.Cursor
Adding detail: I'm getting the text associated with the listView item correctly. What I actually want a sub-part of the data retrieved. For example the data retrieved is obviously an array containing a name and his role. Now, I just want to fetch the 'role' element in the array. Since, the data is retrieved as an array, what I've searched on net is that I can use Cursors to retrieve different elements. Hope you got me now.
There's seem to be a silly syntax error by my side. If you have any alternatives, please tell.
Thanks :)

go with the simple way
ListView list = (ListView) findViewById(R.id.listview);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Object listItem = list.getItemAtPosition(position);
Toast.makeText(getApplicationContext(),"Click ListItem Number"+listItem.getString(), Toast.LENGTH_LONG).show();
}
});

Understanding your case, getItemAtPosition(position) is returning you an Object.
The answer posted by #Charuka Silva might not be working for you as you may have used hashmap object something like HashMap<String,String> obj = new HashMap<String,String>();
So, the solution is to use HashMap again for getting the returned object and using get("key") function to retrieve the value associated with it. I think this is what you want:
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
//Use HashMap here
HashMap<String, Object> member = (HashMap<String, Object>) parent.getItemAtPosition(position);
//Use obj.get("key") here to retrieve the value associated with the "key"
Toast.makeText(getApplicationContext(),"member.get("uname"), Toast.LENGTH_LONG)
.show();
}
});
I had a similar problem in my Minor Project and an answer by #user1068963 helped me. Adding Link.
Hope this helps.

Save Google Form via Android App

I created an Android app where users can save data to Google Spreedsheet using Google Form. I followed this POST which I found is very useful for me, but I'm having some trouble. I'm not able to save data of RadioButton , CheckBox, Date....To upload data we need Key-Value pair.. for TextView its easy to find as ID field is using Inspect Element, But for RadioButton , CheckBox there are multiple IDs.. How to set data for that..
Can anyone please tell me, how to make it possible??

I wanted to work with Radion Buttons, but as there are number of Id's for different radio buttons. So i just opted for "Choose from a List" in google form. There in list you will have one Id for spinner and multiple options. Take the Entry_Id from form and attached with your spinner id. Here is the code
s = (Spinner) findViewById(R.id.spinner);
list.add("Male");
list.add("Female");
ArrayAdapter<String> ad = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_item, list);
ad.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
s.setAdapter(ad);
s.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
result = list.get(position);
Toast.makeText(getApplicationContext(), "you selected:" + result, Toast.LENGTH_SHORT).show();
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
And in Your Post() method add this lines
gender = String.valueOf(s.getSelectedItem()); String data ="entry_1008323309=" + URLEncoder.encode(gender);
Hope this Will help you out.

Getting String from a Spinner

So I've been following some advice around similar questions and I somehow couldn't manage to get into it. I have a spinner called 'e' from which I want to retrieve the selected string when the user clicks a button below it.
I implemented the nested class like this:
class SelectedListener implements OnItemSelectedListener{
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id){
String selected = parent.getItemAtPosition(pos).toString();
}
public void onNothingSelected(AdapterView parent){
//does nothing
}
}
e.setOnItemSelectedListener(new SelectedListener());
Just following the advice from other users around here and the android developers tutorial, the thing is, after this, I don't know which call should I make to retrieve it if I want to save it into a String variable like so:
String selected = //don't know what to put here
Hope is clear enough. Thanks in advance.

I'm pretty sure:
e.getSelectedItem().toString()

Android how to get selected item from data driven spinner

Newbie question. I'm using a SimleCursorAdapter to populate a spinner from an SQLite table, as shown in the Android dev docs:
Spinner list=(Spinner)findViewById(R.id.cboModel);
SimpleCursorAdapter ModelAdapter = new SimpleCursorAdapter(this,
android.R.layout.simple_spinner_item, model,
new String[] {"Drug"},
new int[] {android.R.id.text1});
ModelAdapter.setDropDownViewResource(
android.R.layout.simple_spinner_dropdown_item);
list.setAdapter(ModelAdapter);
list.setOnItemSelectedListener(onModelSelect);
I've set up a listener, but I can't figure out how to get the selected item text, it pulls up the SQLiteCursor, not the actual text in the spinner.
private AdapterView.OnItemSelectedListener
onModelSelect= new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?>
parent, View view, int position, long id) {
ModelName = parent.getSelectedItem().toString();
android.util.Log.w("OnItemSelect.cboModel", ModelName);
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
};
Google turns up the question on several message boards, but no answers, so it appears to be a common newbie question. It may be painfully obvious to some, but if you could point me in the right direction I would appreciate it. Thank you.

Since the selected item is a Cursor, you can easily get the value by calling getString with the index of the column in the original database query that you used to populate the Spinner.
String spinnerString = null;
Cursor cc = (Cursor)(yourSpinner.getSelectedItem());
if (cc != null) {
spinnerString = cc.getString(
cc.getColumnIndex("Drug"));
}
This technique definitely works when the Spinner is populated from the database. I have not tried it with a resource array.

Figured it out... get the id, then make a DB query:
String id_string = String.valueOf(id);
thismodel=Pkmodel.getById(id_string, dbModel);
ModelName=thismodel.getDrug();