来自PopupWindow的Android ListView的setOnItemClickListener未被调用

Question

I'm trying to show a ListView from a PopupWindow. but when I'm try to call ListView's setOnItemClickListener nothing to haapen. Here It Java file

PopupWindowActivity.java

public class PopupWindowActivity extends Activity {
    String[] data = { "DATA 1", "DATA 2", "DATA 3", "DATA 4", "DATA 5", "DATA 6" };
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.a);
    final Button btnOpenPopup = (Button) findViewById(R.id.openpopup);
    btnOpenPopup.setOnClickListener(new Button.OnClickListener() {

        public void onClick(View arg0) {
            LayoutInflater layoutInflater = (LayoutInflater) getBaseContext()
                    .getSystemService(LAYOUT_INFLATER_SERVICE);
            View popupView = layoutInflater.inflate(R.layout.main, null);
            final PopupWindow popupWindow = new PopupWindow(popupView,
                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

            ListView listView = (ListView) popupView.findViewById(R.id.listView1);
            listView.setAdapter(new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,data));
            listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

                public void onItemClick(AdapterView<?> arg0, View arg1,
                        int arg2, long arg3) {
                    // TODO Auto-generated method stub
                    System.out.println("Item Clicked");
                    popupWindow.dismiss();
                }
            });

            popupWindow.showAsDropDown(btnOpenPopup, 20, -5);

        }
    });
}

}

Here it is first xml file a.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="fill_parent"
android:orientation="vertical" >

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello" />
<Button
    android:id="@+id/openpopup"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Open Popup Window" />

</LinearLayout>

Here it inflate xml file main.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="fill_parent"
android:background="@drawable/recording"
android:orientation="vertical" >

<RelativeLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_marginBottom="30sp"
    android:layout_marginLeft="30sp"
    android:layout_marginRight="30sp"
    android:layout_marginTop="100sp" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:cacheColorHint="#00000000" >
    </ListView>
</RelativeLayout>

</LinearLayout>

What am I doing wrong?

Thanks

Answer 1

Just one minor change in your code and BOOOM your code will listen to you list click event

final PopupWindow popupWindow = new PopupWindow(popupView,
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT,true);

You forget to mention focusable setting true in PopupWindow constructor.

Answer 2

had the same problem, but in my case setFocusble(false) was required (and using ListPopupWindow was not a solution in my case as a lot of stuff in the project already used base PopupWindow 's functionality including extending).

If someone in the same situation there is a kind of workaround based on bug discusson here (post #9)

The main idea is that ListView 's hierarchy is still receives touch events so we can manually trigger onItemClick() .

However this approach is not 100% identical to real ListView 's touch handling (like there is no glow of selection while tapping a row) this done pretty well for me for the moment.

If someone has more precise solution of this problem, please share.

So, here is complete Adapter 's code which can be used with ListView inside PopupWindow which is setFocusable(false) :

private class CustomAdapter extends ArrayAdapter {

private LayoutInflater mInflater;
private ListView mOwningListView;

public CustomAdapter(Context context, List<String> objects, ListView listView) {
    super(context, android.R.layout.simple_list_item_1, objects);
    mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    mOwningListView = listView;
}


@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.font_pick_row, null);
    }
    // this is the key point of workaround
    convertView.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            /*
             *  as every row is still receiving their touches
             *  we can use this to manually trigger onItemClick
             *  since it doesn't firing in popupWindow.setFocusable(false)  
             */
            mOwningListView.getOnItemClickListener().onItemClick(mOwningListView, v, position, getItemId(position));

        }
    });
    //... other stuff
    return convertView;
}

}

Answer 3

May this help you .

Declare listview and list onClickListener outside the button ClickListener.