我想使用具有意图的子选项卡创建一个选项卡,以便当用户点击选项卡内容时刷新.
每次用户单击选项卡时,我想刷新并调用onrereate方法的子意图选项卡.
public class Tabs3 extends TabActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final TabHost tabHost = getTabHost(); tabHost.addTab(tabHost.newTabSpec("tab1") .setIndicator("list") .setContent(new Intent(this,List1.class))); tabHost.addTab(tabHost.newTabSpec("tab2") .setIndicator("photo list") .setContent(new Intent(this,List8.class))); // This tab sets the intent flag so that it is recreated each time // the tab is clicked. tabHost.addTab(tabHost.newTabSpec("tab3") .setIndicator("destroy") .setContent(new Intent(this,Controls2.class) .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))); } }
解决方法
添加.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)实现了所需的事情.