1 /* 2 * Copyright (C) 2016 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.android.launcher3; 18 19 import android.os.Bundle; 20 21 import java.io.FileDescriptor; 22 import java.io.PrintWriter; 23 24 /** 25 * LauncherCallbacks is an interface used to extend the Launcher activity. It includes many hooks 26 * in order to add additional functionality. Some of these are very general, and give extending 27 * classes the ability to react to Activity life-cycle or specific user interactions. Others 28 * are more specific and relate to replacing parts of the application, for example, the search 29 * interface or the wallpaper picker. 30 */ 31 public interface LauncherCallbacks { 32 33 /* 34 * Activity life-cycle methods. These methods are triggered after 35 * the code in the corresponding Launcher method is executed. 36 */ onCreate(Bundle savedInstanceState)37 void onCreate(Bundle savedInstanceState); dump(String prefix, FileDescriptor fd, PrintWriter w, String[] args)38 void dump(String prefix, FileDescriptor fd, PrintWriter w, String[] args); onHomeIntent(boolean internalStateHandled)39 void onHomeIntent(boolean internalStateHandled); 40 41 /** 42 * Starts a search with {@param initialQuery}. Return false if search was not started. 43 */ startSearch( String initialQuery, boolean selectInitialQuery, Bundle appSearchData)44 boolean startSearch( 45 String initialQuery, boolean selectInitialQuery, Bundle appSearchData); 46 } 47