Here you can find the source of postDelayed(Runnable run, long delay)
public static void postDelayed(Runnable run, long delay)
//package com.java2s; /*//from w ww . j a v a2s . c o m * Copyright 2011 - AndroidQuery.com (tinyeeliu@gmail.com) * * 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. */ import android.os.Handler; import android.os.Looper; public class Main { private static Handler handler; public static void postDelayed(Runnable run, long delay) { getHandler().postDelayed(run, delay); } public static Handler getHandler() { if (handler == null) { handler = new Handler(Looper.getMainLooper()); } return handler; } }