1 /* 2 * Copyright (C) 2010 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 android.os; 18 19 import com.android.tools.layoutlib.annotations.LayoutlibDelegate; 20 21 22 /** 23 * Delegate overriding selected methods of android.os.Handler 24 * 25 * Through the layoutlib_create tool, selected methods of Handler have been replaced 26 * by calls to methods of the same name in this delegate class. 27 * 28 * 29 */ 30 public class Handler_Delegate { 31 32 // -------- Delegate methods 33 34 @LayoutlibDelegate 35 /*package*/ static boolean sendMessageAtTime(Handler handler, Message msg, long uptimeMillis) { 36 // get the callback 37 IHandlerCallback callback = sCallbacks.get(); 38 if (callback != null) { 39 callback.sendMessageAtTime(handler, msg, uptimeMillis); 40 } 41 return true; 42 } 43 44 // -------- Delegate implementation 45 46 public interface IHandlerCallback { 47 void sendMessageAtTime(Handler handler, Message msg, long uptimeMillis); 48 } 49 50 private final static ThreadLocal<IHandlerCallback> sCallbacks = 51 new ThreadLocal<IHandlerCallback>(); 52 53 public static void setCallback(IHandlerCallback callback) { 54 sCallbacks.set(callback); 55 } 56 57 } 58
