Batuhan Coşkun Batuhan Coşkun - 3 months ago 19
Android Question

How to add gridview setOnItemClickListener

I have a GridView with 81 button on it. I want to add clicklistener to this gridview but it is not available. I can not understand that i add OnItemClickListener but it is not working. There is no error with the code. Only i have is a not working OnItemClickListener.

My gridview children which has a button on it(gridview_members.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"
>

<Button
android:id="@+id/city"
android:layout_width="183dp"
android:layout_height="90dp"
android:textSize="19sp"
android:textStyle="bold"
android:text="Code\n\nCity"
android:gravity="center"
android:background="@drawable/city_btn_tablet" />

</RelativeLayout>


My ImageAdapter class;

public class ImageAdapter extends BaseAdapter {
private Context mContext;

public ImageAdapter(Context c) {
mContext = c;
}

public int getCount() {
return 81;
}

public Object getItem(int position) {
return null;
}

public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

View gridView;

gridView =new View(mContext);

gridView = inflater.inflate(R.layout.gridview_members, null);

Button city = (Button) gridView.findViewById(R.id.city);

return gridView;
}

}


Gridview implementation on activity_main.xml ;

<GridView
android:id="@+id/gridview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"
android:gravity="center"
android:stretchMode="columnWidth"
android:numColumns="6" >
</GridView>


And finally my MainActivity.java file;

public class MainActivity extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(this));

gridview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
}
});
}
}

Answer

You are requesting click on the item(not on the button inside the item) so need to change your child XML layout

from

<?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"
>

<Button
    android:id="@+id/city"
    android:layout_width="183dp"
    android:layout_height="90dp"
    android:textSize="19sp"
    android:textStyle="bold"
    android:text="Code\n\nCity"
    android:gravity="center"
    android:background="@drawable/city_btn_tablet" />

</RelativeLayout>

to

<?xml version="1.0" encoding="utf-8"?>
<Button
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/city"
    android:layout_width="183dp"
    android:layout_height="90dp"
    android:textSize="19sp"
    android:clickable="true"
    android:textStyle="bold"
    android:text="Code\n\nCity"
    android:gravity="center"
    android:background="@drawable/city_btn_tablet" />

or you can add ClickListener inside adapter

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View gridView;

    gridView =new View(mContext);

    gridView = inflater.inflate(R.layout.gridview_members, null);

    Button city = (Button) gridView.findViewById(R.id.city);

                city.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

    //Toast here

        }});

    return gridView;
}