Java tutorial
//package com.java2s; /** * Copyright (C) 2010-2012 Regis Montoya (aka r3gis - www.r3gis.fr) * This file is part of CSipSimple. * * CSipSimple is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * If you own a pjsip commercial license you can also redistribute it * and/or modify it under the terms of the GNU Lesser General Public License * as an android library. * * CSipSimple is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with CSipSimple. If not, see <http://www.gnu.org/licenses/>. */ import android.os.Handler; import android.os.Message; import android.view.View; import android.widget.ImageView; public class Main { private static Handler sThreadHandler; private static void preloadImage(ImageView imageView, int placeholderImageResource, Message msg) { // set the default image first, when the query is complete, we will // replace the image with the correct one. if (placeholderImageResource != -1) { imageView.setVisibility(View.VISIBLE); imageView.setImageResource(placeholderImageResource); } else { imageView.setVisibility(View.INVISIBLE); } // notify the thread to begin working sThreadHandler.sendMessage(msg); } }