Java tutorial
/* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.view; import android.view.MenuItem.OnActionExpandListener; /** * When a {@link View} implements this interface it will receive callbacks * when expanded or collapsed as an action view alongside the optional, * app-specified callbacks to {@link OnActionExpandListener}. * * <p>See {@link MenuItem} for more information about action views. * See {@link android.app.ActionBar} for more information about the action bar. */ public interface CollapsibleActionView { /** * Called when this view is expanded as an action view. * See {@link MenuItem#expandActionView()}. */ public void onActionViewExpanded(); /** * Called when this view is collapsed as an action view. * See {@link MenuItem#collapseActionView()}. */ public void onActionViewCollapsed(); }