TabSpec和TabHost实例

package com.test;

import android.app.Activity;
import android.app.TabActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.Toast;
import android.widget.TabHost.TabSpec;

public class MainActivity extends TabActivity implements OnTabChangeListener {
    /** Called when the activity is first created. */
    private TabSpec ts1 ,ts2, ts3 ;//声明3个分页
    private TabHost tableHost;//分页菜单(tab的容器)
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        tableHost = this.getTabHost();//实例 （分页）菜单
        //利用LayoutInflater将布局与分页菜单一起显示
        LayoutInflater.from(this).inflate(R.layout.main, tableHost.getTabContentView());
        ts1 = tableHost.newTabSpec("tabOne");//实例化一个分页
        ts1.setIndicator("Tab1");//设置此分页显示的标题
        ts1.setContent(R.id.btn);//设置此分页的资源id
        ts2=tableHost.newTabSpec("tabTwo");//实例化第二个分页
        //设置此分页显示的标题和图标
        ts2.setIndicator("Tab2",getResources().getDrawable(R.drawable.icon));
        ts2.setContent(R.id.et);
        ts3= tableHost.newTabSpec("tabThree");//实例化第三个分页
        ts3.setIndicator("Tab3");
        ts3.setContent(R.id.mylayout);//设置此分页的布局id
        tableHost.addTab(ts1);//菜单中添加ts1分页
        tableHost.addTab(ts2);
        tableHost.addTab(ts3);
        tableHost.setOnTabChangedListener(this);       
    }
    public void onTabChanged(String tabId){
        if(tabId.equals("tabOne")){
            Toast.makeText(this, "分页1", Toast.LENGTH_LONG).show();
        }
        if(tabId.equals("tabTwo")){
            Toast.makeText(this, "分页2", Toast.LENGTH_LONG).show();
        }
        if(tabId.equals("tabThree")){
            Toast.makeText(this, "分页3", Toast.LENGTH_LONG).show();
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/btn"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:text="This is Tab1"
        />
    <EditText
        android:id="@+id/et"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="This is Tab2"
        />
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/mylayout"
        android:background="@drawable/bg"
        >
         <Button 
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="This is Tab3"
             />
         <EditText
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="This is Tab3"
             />
    </LinearLayout>
</LinearLayout>