1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.support.v7.view; 18 19import android.support.v4.view.MenuItemCompat.OnActionExpandListener; 20 21/** 22 * When a {@link android.view.View} implements this interface it will receive callbacks when expanded or 23 * collapsed as an action view alongside the optional, app-specified callbacks to {@link 24 * OnActionExpandListener}. 25 * 26 * <p>See {@link android.support.v4.view.MenuItemCompat} for more information about action views. 27 * See {@link android.app.ActionBar} for more information about the action bar. 28 */ 29public interface CollapsibleActionView { 30 31 /** 32 * Called when this view is expanded as an action view. See {@link 33 * android.support.v4.view.MenuItemCompat#expandActionView(android.view.MenuItem)}. 34 */ 35 public void onActionViewExpanded(); 36 37 /** 38 * Called when this view is collapsed as an action view. See {@link 39 * android.support.v4.view.MenuItemCompat#collapseActionView(android.view.MenuItem)}. 40 */ 41 public void onActionViewCollapsed(); 42} 43