TabWidget

 TabTest.java
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 package  org.hualang.tab;
 import  android.app.Activity;
 import  android.app.TabActivity;
 import  android.graphics.Color;
 import  android.os.Bundle;
 import  android.widget.TabHost;
 import  android.widget.Toast;
 import  android.widget.TabHost.OnTabChangeListener;
 public   class  TabTest  extends  TabActivity {
      /** Called when the activity is first created. */
     TabHost tabhost;
      @Override
      public   void  onCreate(Bundle savedInstanceState) {
          super .onCreate(savedInstanceState);
         setContentView(R.layout.main);
          //取得TabHost对象
         tabhost = getTabHost();
          //为TabHost添加标签
          //新建一个newTabSpec(newTabSpec)
          //设置其标签和图标（setIndicator）
          //设置内容（setContent）
         tabhost.addTab(tabhost.newTabSpec( "tab1" )
                 .setIndicator( "TAB 1" ,getResources().getDrawable(R.drawable.img1))
                 .setContent(R.id.text1));
         tabhost.addTab(tabhost.newTabSpec( "tab2" )
                 .setIndicator( "TAB 2" ,getResources().getDrawable(R.drawable.img2))
                 .setContent(R.id.text2));
         tabhost.addTab(tabhost.newTabSpec( "tab3" )
                 .setIndicator( "TAB 3" ,getResources().getDrawable(R.drawable.img3))
                 .setContent(R.id.text3));
          //设置TabHost的背景颜色
          //tabhost.setBackgroundColor(Color.argb(150,22,70,150));
          //设置TabHost的背景图片资源
         tabhost.setBackgroundResource(R.drawable.bg0);
          //设置当前显示哪个标签
         tabhost.setCurrentTab( 0 );
          //标签切换事件处理，setOnTabChangedListener
         tabhost.setOnTabChangedListener( new  OnTabChangeListener()
         {
              public   void  onTabChanged(String tabId)
             {
                 Toast toast=Toast.makeText(getApplicationContext(),  "现在是" +tabId+ "标签" , Toast.LENGTH_SHORT);
                 toast.show();
             }
         });

     }
 }

 

 <? xml   version = "1.0"   encoding = "utf-8" ?>
 < TabHost   xmlns:android = "http://schemas.android.com/apk/res/android"
      android:id = "@android:id/tabhost"
      android:layout_width = "fill_parent"
      android:layout_height = "fill_parent" >
      < LinearLayout
          android:orientation = "vertical"
          android:layout_width = "fill_parent"
          android:layout_height = "fill_parent" >
          < TabWidget
              android:id = "@android:id/tabs"
              android:layout_width = "fill_parent"
              android:layout_height = "wrap_content"   />
          < FrameLayout
              android:id = "@android:id/tabcontent"
              android:layout_width = "fill_parent"
              android:layout_height = "fill_parent" >
              < TextView
                  android:id = "@+id/text1"
                  android:layout_width = "fill_parent"
                  android:layout_height = "fill_parent"
                  android:text = "选项卡1"   />
              < TextView
                  android:id = "@+id/text2"
                  android:layout_width = "fill_parent"
                  android:layout_height = "fill_parent"
                  android:text = "选项卡2"   />
              < TextView
                  android:id = "@+id/text3"
                  android:layout_width = "fill_parent"
                  android:layout_height = "fill_parent"
                  android:text = "选项卡3"   />
          </ FrameLayout >
      </ LinearLayout >
 </ TabHost >

来自：http://dev.10086.cn/cmdn/wiki/index.php?edition-view-6819-1.html