I have a list view inside a DialogFragment and onClick for the list item doesnt work. Dont know where Im going wrong here. Implemented onItemClick but no use. Code below.
DialogFragment
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
public class DFragment extends DialogFragment {
ListView mylist;
ArrayList dateitems ;
ArrayList descitems ;
ArrayList locationitems ;
ArrayList listitems ;
public void setList(ArrayList list){
listitems = list;
}
public void setDateList(ArrayList list){
dateitems = list;
}
public void setLocList(ArrayList list){
locationitems = list;
}
public void setDescList(ArrayList list){
descitems = list;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.popup_content, container,
false);
mylist = (ListView) rootView.findViewById(R.id.poplist);
TextView title = (TextView) rootView.findViewById(R.id.dialog_title);
title.setText("Today's Events");
getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
mylist.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(getActivity(), SupportEventActivity.class);
intent.putExtra("rvEventTitle", listitems.get(position).toString());
intent.putExtra("rvEventDescription", descitems.get(position).toString());
intent.putExtra("rvEventLocation", locationitems.get(position).toString());
intent.putExtra("rvEventTimestamp", dateitems.get(position).toString());
}
});
// Do something else
return rootView;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
R.layout.popup_content_row, R.id.poprow_text, listitems);
mylist.setAdapter(adapter); }
Layout file. popup_content.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#drawable/back"
>
<TextView
android:id="#+id/dialog_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:textSize="25dp"/>
<ListView
android:id="#+id/poplist"
android:layout_width="wrap_content"
android:layout_height="200dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:divider="#8F8F8F"
android:dividerHeight="2px"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#ffffff" /> </LinearLayout>
You didn't add startActivity(intent) to your OnClickListener.
Related
I want to add search box action in Main activity and List data activity,but I'm having trouble with getting filter() and other things,Please suggest me the ode.
package com.souravapplication.fruit;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Locale;
public class MainActivity extends AppCompatActivity {
SearchView editsearch;
ListView listView;
String[] fruitNames = {"Apple","Oranges","Kiwi","Passion","Banana"};
int[] fruitImages = {R.drawable.apple,R.drawable.oranges,R.drawable.kiwi,R.drawable.passion,R.drawable.banana};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = findViewById(R.id.listview);
final CustomAdapter customAdapter = new CustomAdapter();
listView.setAdapter(customAdapter);
editsearch = findViewById(R.id.search);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(final AdapterView adapterView, View view, int i, long l) {
Toast.makeText(getApplicationContext(),fruitNames[i],Toast.LENGTH_LONG).show();
Intent intent = new Intent(getApplicationContext(),Listdata.class);
intent.putExtra("name",fruitNames[i]);
intent.putExtra("image",fruitImages[i]);
startActivity(intent);
}
});
}
private class CustomAdapter extends BaseAdapter {
#Override
public int getCount() {
return fruitImages.length;
}
#Override
public Object getItem(int i) {
return null;
}
#Override
public long getItemId(int i) {
return 0;
}
#Override
public View getView(int i, View view, ViewGroup viewGroup) {
View view1 = getLayoutInflater().inflate(R.layout.row_data, null);
//getting view in row_data
TextView name = view1.findViewById(R.id.fruits);
ImageView image = view1.findViewById(R.id.images);
name.setText(fruitNames[i]);
image.setImageResource(fruitImages[i]);
return view1;
}
}
}
My List Data Activity class.
package com.souravapplication.fruits;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;
public class Listdata extends AppCompatActivity {
TextView listdata;
ImageView imageView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_listdata);
listdata = findViewById(R.id.listdata);
imageView = findViewById(R.id.imageView);
Intent intent = getIntent();
String receivedName = intent.getStringExtra("name");
int receivedImage = intent.getIntExtra("image",0);
listdata.setText(receivedName);
imageView.setImageResource(receivedImage);
//enable back Button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
#Override
public void onBackPressed() {
super.onBackPressed();
}
}
I have defined the SearchBox in android XML and it's working, the only problem is putting action in the search box.
My activity_main.xml file
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<SearchView
android:id="#+id/search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:iconifiedByDefault="false"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent">
</SearchView>
<ListView
android:id="#+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
app:layout_constraintEnd_toEndOf="parent"
tools:ignore="MissingConstraints"
tools:layout_editor_absoluteY="-699dp">
</ListView>
</android.support.constraint.ConstraintLayout>
My row_data.xml
<?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">
<RelativeLayout
android:id="#+id/listviewdata"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
>
<TextView
android:id="#+id/fruits"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginEnd="44dp"
android:layout_marginRight="44dp"
android:layout_toStartOf="#+id/images"
android:layout_toLeftOf="#+id/images"
android:text="Apple"
android:textColor="#000"
android:textSize="35sp"
/>
<ImageView
android:id="#+id/images"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginEnd="27dp"
android:layout_marginRight="27dp"
android:src="#drawable/apple"/>
</RelativeLayout>
I have created a listview called popuplistfragment.java and list_view.xml.I have added textview in xml file but I dont know where to add code to change the textview in the listview.
import android.app.ListFragment;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class PopupListFragment extends ListFragment implements OnItemClickListener {
TextView textview;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.list_item, container, false);
return view;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ArrayAdapter adapter = ArrayAdapter.createFromResource(getActivity(), R.array.quotes, android.R.layout.simple_list_item_1);
setListAdapter(adapter);
getListView().setOnItemClickListener(this);
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
//Toast.makeText(getActivity(), "Item: " + position, Toast.LENGTH_SHORT).show();
String item = (String) parent.getItemAtPosition(position);
Log.v("check", "item is clicked");
Intent myIntent = new Intent(getActivity(), SwipeViews.class);
myIntent.putExtra("key", item);
myIntent.putExtra("index", position);
startActivity(myIntent);
}
}
And this is the list_view.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="?attr/listPreferredItemHeight"
android:background="#drawable/back_listview">
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:longClickable="false"
>
</ListView>
<TextView
android:id="#+id/text1"
android:textColor="#e15258"
android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:maxLines="1"
android:ellipsize="end"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
Firstly you need to extend Adapter class
public class ListAdapter extends ArrayAdapter<String> {
String [] mQuotes;
public ListAdapter(String [] quotes){
mQuotes = quotes;
}
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater layoutInflater = LayoutInflater.from(getContext());
v = layoutInflater.inflate(R.layout.itemlistrow, null);
}
TextView quoteTextView = v.findViewById(R.id.quote_textView);
quoteTextView.setText(mQuotes[position])
return v;
}
#Override
public int getCount() {
return quotes.length;
}
}
Then implement other methods.
The next step is to change next code
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
String [] QuoteArray = getResources().getStringArray(R.array.quotes);
ListAdapter adapter = new ListAdapter(QuoteArray);
setListAdapter(adapter);
getListView().setOnItemClickListener(this);
}
Then add itemlistrow.xml to Layout folder and change it so:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/quote_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
You can customize itemlistrow.xml as you want
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="15dp"
android:padding="10dp"
android:src="#drawable/arteta"/>
<TextView
android:id="#+id/nameTv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="27dp"
android:layout_marginTop="10dp"
android:layout_toRightOf="#id/imageView1"
android:text="name"/>
</RelativeLayout>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:layout_width="150dp"
android:layout_height="100dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="15dp"
android:padding="10dp"
android:id="#+id/imageView1"
android:src="#drawable/arteta"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="27dp"
android:layout_marginTop="10dp"
android:layout_toRightOf="#+id/imageView1"
android:text="Name"
android:id="#+id/nameTv" />
</RelativeLayout>
RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show"
android:id="#+id/button1"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:onClick="setContentView" />
</RelativeLayout>
I have made a ListView with a DialogFragment and I am trying to display this in full screen.
However, when I run it on a device, there is always a border around the edges of the ListView, like a box within a box and cant seem to set it to fill the screen!
I have tried many routes to make this ListView cover the entire screen to no avail.
I would really like and appreciate some help with this.
Layout
<?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:orientation="vertical">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listView1"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
></ListView>
</RelativeLayout>
MainActivity
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.app.FragmentManager;
public class MainActivity extends FragmentActivity {
Button showBtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final android.support.v4.app.FragmentManager fm = getSupportFragmentManager();
final PlayersFragment p = new PlayersFragment();
showBtn = (Button) findViewById(R.id.button1);
showBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
p.show(fm, "Players Fragment");
}
});
}
}
PlayersFragment
import android.app.DialogFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
public class PlayersFragment extends android.support.v4.app.DialogFragment {
ListView lv;
String[] players = {"micheal arteta", "deago costa", "andy reid", "scum degea", "scum rooney", "john terry"};
int[] images = {R.drawable.arteta, R.drawable.costa, R.drawable.reid, R.drawable.degea,
R.drawable.rooney, R.drawable.terry};
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.dialog, container, false);
//initialize listview
lv = (ListView) rootView.findViewById(R.id.listView1);
//set dialog title
getDialog().setTitle("Soccer SuperStars");
//create adapter obj and set list view to it
Adapter adapter = new Adapter(getActivity(), players);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> a, View v, int pos, long id) {
Toast.makeText(getActivity(), players[pos], Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
}
Adapter
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class Adapter extends ArrayAdapter<String>{
Context c;
String[] players;
int[] images;
LayoutInflater inflater;
public Adapter(Context context, String[] players) {
super(context, R.layout.rowmodel,players);
this.c=context;
this.players = players;
this.images = images;
}
#Override
public View getView(int position,View convertView, ViewGroup parent){
if(convertView==null)
{
inflater= (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.rowmodel,null);
}
TextView nameTv = (TextView) convertView.findViewById(R.id.nameTv);
ImageView img = (ImageView) convertView.findViewById(R.id.imageView1);
nameTv.setText(players[position]);
img.setImageResource(images[position]);
return convertView;
}
}
I think that you should use a FrameLayout in your main_activity layout. Something like this:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show"
android:id="#+id/button1"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:onClick="setContentView" />
</FrameLayout>
</RelativeLayout>
Then, in your MainActivity, try this:
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends FragmentActivity {
Button showBtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final android.support.v4.app.FragmentManager fm = getSupportFragmentManager();
final PlayersFragment p = new PlayersFragment();
showBtn = (Button) findViewById(R.id.button1);
showBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
final FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
showBtn.setVisibility(View.GONE);
transaction.replace(R.id.fragment_container, p);
transaction.addToBackStack(null);
transaction.commit();
}
});
}
#Override
public void onBackPressed() {
if (showBtn != null) {
showBtn.setVisibility(View.VISIBLE);
}
super.onBackPressed();
}
}
Your adapter:
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class Adapter extends ArrayAdapter<String>{
Context c;
String[] players;
int[] images;
LayoutInflater inflater;
public Adapter(Context context, String[] players, int[] images) {
super(context, R.layout.simplerow,players);
this.c=context;
this.players = players;
this.images = images;
}
#Override
public View getView(int position,View convertView, ViewGroup parent){
if(convertView==null)
{
inflater= (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.simplerow,null);
}
TextView nameTv = (TextView) convertView.findViewById(R.id.nameTv);
ImageView img = (ImageView) convertView.findViewById(R.id.imageView1);
nameTv.setText(players[position]);
img.setImageResource(images[position]);
return convertView;
}
}
Your dialog layout:
<?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"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Soccer SuperStars"
android:layout_gravity="center"/>
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#android:color/black"/>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listView1"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
></ListView>
</LinearLayout>
And your PlayerFragment:
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
public class PlayersFragment extends android.support.v4.app.DialogFragment {
ListView lv;
String[] players = {"micheal arteta", "deago costa", "andy reid", "scum degea", "scum rooney", "john terry"};
int[] images = {R.drawable.arteta, R.drawable.costa, R.drawable.reid, R.drawable.degea,
R.drawable.rooney, R.drawable.terry};
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.dialog, container, false);
//initialize listview
lv = (ListView) rootView.findViewById(R.id.listView1);
//create adapter obj and set list view to it
Adapter adapter = new Adapter(getActivity(), players, images);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> a, View v, int pos, long id) {
Toast.makeText(getActivity(), players[pos], Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
}
I removed some come (paddings) from your main_activity layout and included some code show the "dialog" (that is now a fragment) full screen.
1) First method
public class PlayersFragment extends DialogFragment {
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setStyle(DialogFragment.STYLE_NO_TITLE, android.R.style.Theme_NoTitleBar_Fullscreen);
}
}
2) Second method
public class PlayersFragment extends DialogFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setStyle(DialogFragment.STYLE_NO_TITLE, R.style.myCustomStyle);
}
}
in values add style
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AppBaseTheme" parent="Theme.AppCompat.Light.NoActionBar">
</style>
<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
</style>
<style name="GalleryDialogStyle" parent="AppTheme">
<item name="android:windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>
<item name="android:windowContentOverlay">#null</item>
</style>
</resources>
I meet a problem developing an android project.
Using adapter, I place many items in a ListView, and there is an ImageButton in each item. Now I want to set a click listener for these ImageButtons. What should I do?
This achieves your desired result. Its functionality is the button itself has a click response different from the container, which also has a response.
MainActivity.java
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list);
ListView lv = (ListView) findViewById( R.id.list );
lv.setOnItemClickListener(
new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0,
android.view.View arg1, int arg2, long arg3) {
Toast.makeText( MainActivity.this,
"List item clicked",
Toast.LENGTH_SHORT).show();
}
});
ArrayList<String> items = new ArrayList<String>();
items.add( "item1");
items.add( "item2");
items.add( "item3");
ListAdapter adapter = new ListAdapter( this, items);
lv.setAdapter( adapter );
}
}
ListAdapter.java
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.BaseAdapter;
import android.widget.Toast;
import java.util.List;
public class ListAdapter extends BaseAdapter {
public ListAdapter(Context context,
List<String> items ) {
inflater = LayoutInflater.from( context );
this.context = context;
this.items = items;
}
public int getCount() {
return items.size();
}
public Object getItem(int position) {
return items.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
String item = items.get(position);
View v = null;
if( convertView != null )
v = convertView;
else
v = inflater.inflate( R.layout.item, parent, false);
TextView itemTV = (TextView)v.findViewById( R.id.item);
itemTV.setText( item );
ImageButton button =
(ImageButton)v.findViewById( R.id.button);
button.setOnClickListener(
new OnClickListener() {
public void onClick(View v) {
Toast.makeText( context,
"ImageButton clicked",
Toast.LENGTH_SHORT).show();
}
});
return v;
}
private Context context;
private List<String> items;
private LayoutInflater inflater;
}
item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:descendantFocusability="blocksDescendants" >
<TextView
android:id="#+id/item"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:textSize="28sp" />
<ImageButton
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:background="#android:color/transparent"
android:src="#drawable/emo_im_cool" />
</RelativeLayout>
list.xml
<?xml version="1.0" encoding="utf-8" ?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/list" />
Try it out and hopefully you can see what's going on to learn what you need
I have the Problem, that I get a NullPointExeption when I want to set a adapter on my ListView.
Before I had the Fragment extended with ListFragment and a simple Adapter, that works but the problem was, that I have 3 Fragments in this activity all with ListViews and I got display errors (shows the wrong list in a fragment). So I decided to set for every Fragment own ids on the Listview but now it doesnt work.
Error listview.setAdapter(adapter):
java.lang.NullPointerException at
de.resper.e2cast.MainFragmentLive.onCreateView(MainFragmentLive.java:46)
Fragment:
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
import de.resper.e2cast.classes.globalBox;
import de.resper.e2cast.helper.getXml;
import de.resper.e2cast.helper.parseXml;
public class MainFragmentLive extends android.support.v4.app.Fragment {
private List<String> bouquetListString;
private ArrayAdapter<String> adapter;
private globalBox activeBox;
private ListView listview;
#Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main_live, container, false);
activeBox = ((globalBox) getActivity().getApplicationContext());
bouquetListString = new ArrayList<String>();
bouquetListString.add("loading...");
if(activeBox.isInit()){
if(activeBox.getBouquets().size() > 0 && activeBox.getBouquets().get(2).size() > 0){
bouquetListString = activeBox.getBouquets().get(2);
}else{
Log.d("Load Bouquet", "XML");
getBouquetBox();
}
}
listview = (ListView) getActivity().findViewById(R.id.listLive);
adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1, bouquetListString);
listview.setAdapter(adapter);
ImageButton reloadBouquet = (ImageButton) view.findViewById(R.id.reloadBouquet);
reloadBouquet.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View arg0) {
getBouquetBox();
}
});
setHasOptionsMenu(true);
return view;
}
public void getBouquetBox(){
getXml.DownloadCompleteListener dcl = new getXml.DownloadCompleteListener() {
#Override
public void onDownloadComplete(String result) {
bouquetListString.clear();
String [] tags = {"e2servicereference", "e2servicename"};
List<List<String>> bouquetsList = parseXml.parseXmlByTag(result, tags);
activeBox.addBouquets(bouquetsList);
bouquetListString.addAll(activeBox.getBouquets().get(2));
adapter.notifyDataSetChanged();
}
};
Log.d("MyLogger", "XML Request GET BOUQUET");
getXml downloader = new getXml(dcl);
downloader.execute("http://" + activeBox.getIpPort() + "/web/getservices");
}
}
Fragment 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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_margin="8dp">
<TextView
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="0.8"
android:text="#string/selectBouquet"
style="#style/header1"/>
<ImageButton
android:layout_width="0dip"
android:layout_height="wrap_content"
android:id="#+id/reloadBouquet"
android:src="#drawable/ic_action_refresh"
android:contentDescription="#string/search"
android:layout_weight=".20"
android:layout_gravity="bottom"/>
</LinearLayout>
<View
android:layout_width="fill_parent"
android:layout_height="1dp"
android:background="#android:color/darker_gray"/>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/listLive" />
</LinearLayout>
Use view instead of getActivity() to initializing ListView because ListView is inside Fragment layout instead of Activity :
listview = (ListView) view.findViewById(R.id.listLive);