android searchview setOnActionExpandListener on Honeycomb 3.2

Question

I\'m developing an app for Android 3.2 and greater with android-support-v4. I need to implement OnActionExpandListener for \"intercept\" when Searc

Answer 1

I found that MenuItemCompat.setOnActionExpandListener(...) is not working if you don't pass:

    searchItem
            .setShowAsAction(MenuItemCompat.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW
                    | MenuItemCompat.SHOW_AS_ACTION_ALWAYS);

But this is changing the SearchView and is replacing the DrawerToggle with back arrow.

I wanted to keep the original views and still track the Expanded/Collapsed state and use supported Search View.

Solution:

When android.support.v7.widget.SearchView is changing the view state the LinearLayout view's, with id android.support.v7.appcompat.R.id.search_edit_frame, visibility value is being changed from View.VISIBLE to View.GONE and opposite. So I add ViewTreeObserver to track the visibility change of the search edit frame.

menu_search.xml:

In the activity:

import android.support.v4.view.MenuItemCompat;
import android.support.v7.widget.SearchView;
import android.view.Menu;
import android.view.MenuItem;

..........

private View mSearchEditFrame;

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_search, menu);
    MenuItem searchItem = (MenuItem) menu.findItem(R.id.action_search);

    SearchView searchView = (SearchView) MenuItemCompat
            .getActionView(searchItem);
    searchView.setSubmitButtonEnabled(false);
    mSearchEditFrame = searchView
            .findViewById(android.support.v7.appcompat.R.id.search_edit_frame);

    ViewTreeObserver vto = mSearchEditFrame.getViewTreeObserver();
    vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
        int oldVisibility = -1;

        @Override
        public void onGlobalLayout() {

            int currentVisibility = mSearchEditFrame.getVisibility();

            if (currentVisibility != oldVisibility) {
                if (currentVisibility == View.VISIBLE) {
                    Log.v(TAG, "EXPANDED");
                } else {
                    Log.v(TAG, "COLLAPSED");
                }

                oldVisibility = currentVisibility;
            }

        }
    });

    return super.onCreateOptionsMenu(menu);
}

Thanks!