<?xml version="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:androidLinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <TabHost android:id="@+id/edit_item_tab_host"
    android:layout_width="fill_parent"android:layout_height="fill_parent">
    <LinearLayout android:orientation="vertical"
      android:layout_width="fill_parent"android:layout_height="fill_parent"
      android:padding="5dp">
      <FrameLayoutandroid:idFrameLayoutandroid:id="@android:id/tabcontent"
        android:layout_width="fill_parent"android:layout_height="wrap_content"
        android:padding="5dp" android:layout_weight="1"/>
      <TabWidget android:id="@android:id/tabs"
        android:layout_width="fill_parent"android:layout_height="wrap_content"
        android:layout_weight="0" />
    </LinearLayout>
  </TabHost>
</LinearLayout>

import android.app.ActivityGroup;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
public class TestTab extends ActivityGroup {
  publicstatic TabHost tab_host;
  @Override
  protectedvoid onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.bottomtab);
    tab_host = (TabHost) findViewById(R.id.edit_item_tab_host);
    tab_host.setup(this.getLocalActivityManager());
    TabSpec ts1 = tab_host.newTabSpec("TAB_WEATHER");
    ts1.setIndicator("Weather");
    ts1.setContent(new Intent(this, Weather.class));
    tab_host.addTab(ts1);
    TabSpec ts2 = tab_host.newTabSpec("TAB_MAIL");
    ts2.setIndicator("Mail");
    ts2.setContent(new Intent(this, MailSend.class));
    tab_host.addTab(ts2);
    TabSpec ts3 = tab_host.newTabSpec("TAB_JUMP");
    ts3.setIndicator("Jump");
    ts3.setContent(new Intent(this, TabJump.class));
    tab_host.addTab(ts3);
    tab_host.setCurrentTab(0);
  }
}

TestTab.tabHost.setCurrentTab(0);

</activity>
   <activityandroid:nameactivityandroid:name=".Weather">
</activity>
   <activityandroid:nameactivityandroid:name=".MailSend">
</activity>
   <activityandroid:nameactivityandroid:name=".TabJump">
</activity>