1 /* 2 * Copyright 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 17 package com.example.android.actionbarcompat; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.view.Menu; 22 import android.view.MenuInflater; 23 24 /** 25 * A base activity that defers common functionality across app activities to an {@link 26 * ActionBarHelper}. 27 * 28 * NOTE: dynamically marking menu items as invisible/visible is not currently supported. 29 * 30 * NOTE: this may used with the Android Compatibility Package by extending 31 * android.support.v4.app.FragmentActivity instead of {@link Activity}. 32 */ 33 public abstract class ActionBarActivity extends Activity { 34 final ActionBarHelper mActionBarHelper = ActionBarHelper.createInstance(this); 35 36 /** 37 * Returns the {@link ActionBarHelper} for this activity. 38 */ getActionBarHelper()39 protected ActionBarHelper getActionBarHelper() { 40 return mActionBarHelper; 41 } 42 43 /**{@inheritDoc}*/ 44 @Override getMenuInflater()45 public MenuInflater getMenuInflater() { 46 return mActionBarHelper.getMenuInflater(super.getMenuInflater()); 47 } 48 49 /**{@inheritDoc}*/ 50 @Override onCreate(Bundle savedInstanceState)51 protected void onCreate(Bundle savedInstanceState) { 52 super.onCreate(savedInstanceState); 53 mActionBarHelper.onCreate(savedInstanceState); 54 } 55 56 /**{@inheritDoc}*/ 57 @Override onPostCreate(Bundle savedInstanceState)58 protected void onPostCreate(Bundle savedInstanceState) { 59 super.onPostCreate(savedInstanceState); 60 mActionBarHelper.onPostCreate(savedInstanceState); 61 } 62 63 /** 64 * Base action bar-aware implementation for 65 * {@link Activity#onCreateOptionsMenu(android.view.Menu)}. 66 * 67 * Note: marking menu items as invisible/visible is not currently supported. 68 */ 69 @Override onCreateOptionsMenu(Menu menu)70 public boolean onCreateOptionsMenu(Menu menu) { 71 boolean retValue = false; 72 retValue |= mActionBarHelper.onCreateOptionsMenu(menu); 73 retValue |= super.onCreateOptionsMenu(menu); 74 return retValue; 75 } 76 77 /**{@inheritDoc}*/ 78 @Override onTitleChanged(CharSequence title, int color)79 protected void onTitleChanged(CharSequence title, int color) { 80 mActionBarHelper.onTitleChanged(title, color); 81 super.onTitleChanged(title, color); 82 } 83 } 84