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:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" >

<item
    android:id="@+id/action_search"
    android:icon="@android:drawable/ic_menu_search"
    android:title="@string/search"
    app:actionViewClass="android.support.v7.widget.SearchView"
    app:showAsAction="always"/>

</menu>

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!

Answer 2

For MenuItemCompat.setOnActionExpandListener to work you should add "collapseActionView" added in the menu item - for example -

<item android:id="@+id/action_search"
          android:icon="@drawable/ic_action_search"
          android:title="@string/action_search"
          app:showAsAction="ifRoom|collapseActionView"
          app:actionViewClass="android.support.v7.widget.SearchView" />

And in the onCreateOptionsMenu you can use it this way -

MenuItemCompat.setOnActionExpandListener(menu_search,
            new OnActionExpandListener()
            {
                @Override
                public boolean onMenuItemActionCollapse(MenuItem item)
                {
                    // Do something when collapsed
                    return true; // Return true to collapse action view
                }

                @Override
                public boolean onMenuItemActionExpand(MenuItem item)
                {
                    // Do something when expanded
                    return true; // Return true to expand action view
                }
            });

Answer 3

Your Listener should be MenuItemCompat.OnActionExpandListener() .

MenuItemCompat.setOnActionExpandListener(searchItem,
            new MenuItemCompat.OnActionExpandListener() {

}

Answer 4

thanks for your help, your solution is work for me. and i'd like to vote you up, but i just realized i have only 1 reputation，(；′⌒`)

actually, my solution is similar to your, there is just one different in the menu xml file like this:

    <item
    android:id="@+id/apps_menu_search"
    android:icon="@drawable/ic_action_search"
    android:title="@string/apps_menu_search"
    android:visible="true"
    app:actionViewClass="android.support.v7.widget.SearchView"
    app:showAsAction="ifRoom|collapseActionView" />

Answer 5

You probably missed the fact (like I did) that `MenuItemCompat.OnActionExpandListener' interface has a static implementation, and is not an instance method.

So, if you have a class that implements MenuItemCompat.OnActionExpandListener then in that class you need to install it as the listener like this:

    MenuItem menuItem =  menu.findItem(R.id.search);
    if (menuItem != null) {
        MenuItemCompat.setOnActionExpandListener(menuItem,this);
        MenuItemCompat.setActionView(menuItem, mSearchView);
    }

The same paradigm applies to setActionView ... rather than invoke menuItem.setActionView(this), you pass the menuItem as the first argument to the static version MenuItemCompat.setActionView and follow with the other argument(s).