Disable Spinner drop-down list when focus changes

Question

I have a dropdown counter that displays when I click on the button, it looks like this:

 <Button
    android:id="@+id/btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Spinner
        android:id="@+id/spinMenu"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:spinnerMode="dropdown"
        android:visibility="invisible" />


    <ListView
        android:id="@+id/lvWall"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

Here is a snippet showing the popup of a popup:

      findViewById(R.id.btn).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            spinMenu.performClick();                
        }
    });       

My spinner can display the popup popup correctly. The problem is that there is a list in my layout that receives data from a web service in the background. When the data is fully loaded, all list items will be displayed or updated, and the spinner popup will be canceled (I don’t even touch anything on the screen).
I think the problem in the window changed orientation to a different view. So how can I prevent this?

Update : Here is my list after loading data from the background, it is very simple:

List<Feed> data = result; 
FeedAdapter adapter = new FeedAdapter (this, data);
ListView lvWall = (ListView)findViewById(R.id.lvWall);
lvWall.setAdapter(adapter);

:

 List<String> list = getMenus();
 ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
    android.R.layout.simple_spinner_item, list);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinMenu.setAdapter(dataAdapter);

Answer 1

, Spinner, , Spinner. , , Spinner.java, DropdownPopup.show():

public void show(int textDirection, int textAlignment) {
    ...
    super.show();
    ...

    // Make sure we hide if our anchor goes away.
    // TODO: This might be appropriate to push all the way down to PopupWindow,
    // but it may have other side effects to investigate first. (Text editing handles, etc.)
    final ViewTreeObserver vto = getViewTreeObserver();
    if (vto != null) {
        final OnGlobalLayoutListener layoutListener = new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (!Spinner.this.isVisibleToUser()) {
                    dismiss();
                } else {
                    computeContentWidth();

                    ...

? , Spinner ViewTreeObserver, , . , Spinner , , . ListView, , , , .

: Spinner , , - , . , . , - isVisibleToUser(), , , @hide, .

, , Spinner , ? , 1px? , , .

, , Spinner PopupMenu. Button, . .

Answer 2

, . .

focuschangeListener onfocuschange, ,

yourView.setOnFocusChangeListener(testListener);

@Override
      public void onFocusChange(View arg0,
              boolean isFocused) 
      {
          if(isFocused)
           {
              //do your work here
            }
           else
           {
           }
       }

.

<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->
<LinearLayout
    android:focusable="true" android:focusableInTouchMode="true"
    android:layout_width="0px" android:layout_height="0px"/>

<!-- :nextFocusUp and :nextFocusLeft have been set to the id of this component
     to prevent the dummy from receiving focus again -->
<AutoCompleteTextView android:id="@+id/autotext"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:nextFocusUp="@id/autotext" android:nextFocusLeft="@id/autotext"/>