ActivityGroup解决TabHost中多个Activity跳转问题

/** * */ package hkp.test; import android.app.ActivityGroup; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.Window; /** * @author HuangKaipeng hkp2006@gmail.com * 2011-10-5 * */ public class FirstGroupTab extends ActivityGroup { /** * 一个静态的ActivityGroup变量，用于管理本Group中的Activity */ public static ActivityGroup group; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); group = this; } @Override public void onBackPressed() { // TODO Auto-generated method stub // super.onBackPressed(); //把后退事件交给子Activity处理 group.getLocalActivityManager() .getCurrentActivity().onBackPressed(); } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); //把界面切换放到onResume方法中是因为，从其他选项卡切换回来时， //调用搞得是onResume方法 //要跳转的界面 Intent intent = new Intent(this, FirstActivity.class). addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); //把一个Activity转换成一个View Window w = group.getLocalActivityManager().startActivity("FirstActivity",intent); View view = w.getDecorView(); //把View添加大ActivityGroup中 group.setContentView(view); } }