android中TabActivity的用法

import android.os.Bundle;
import android.app.Activity;
import android.app.TabActivity;
import android.content.Intent;
import android.view.Menu;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;

public class MainActivity extends TabActivity {  
    private TabHost m_tabHost;  
    /** Called when the activity is first created. */  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
          
        //getTabHost返回的TabHost用于装载tabs  
        m_tabHost = getTabHost();  
          
        //add tabs,这里用于添加具体的Tabs,并用Tab触发相应的Activity  
        addOneTab();  
        addTwoTab();  
        addThreeTab();  
        addFourTab();  
    }  
      
    public void addOneTab(){  
        Intent intent = new Intent();  
        intent.setClass(MainActivity.this, OneActivity.class);  
          
        TabSpec spec = m_tabHost.newTabSpec("One");  
        spec.setIndicator(getString(R.string.one), null);  
        spec.setContent(intent);          
        m_tabHost.addTab(spec);  
    }  
      
    public void addTwoTab(){  
        Intent intent = new Intent();  
        intent.setClass(MainActivity.this, TwoActivity.class);  
          
        TabSpec spec = m_tabHost.newTabSpec("Two");  
        spec.setIndicator(getString(R.string.two), null);  
        spec.setContent(intent);          
        m_tabHost.addTab(spec);  
    }  
    public void addThreeTab(){  
        Intent intent = new Intent();  
        intent.setClass(MainActivity.this, ThreeActivity.class);  
          
        TabSpec spec = m_tabHost.newTabSpec("Three");  
        spec.setIndicator(getString(R.string.three), null);  
        spec.setContent(intent);          
        m_tabHost.addTab(spec);  
    }  
    public void addFourTab(){  
        Intent intent = new Intent();  
        intent.setClass(MainActivity.this, FourActivity.class);  
          
        TabSpec spec = m_tabHost.newTabSpec("Four");  
        spec.setIndicator(getString(R.string.four), null);  
        spec.setContent(intent);          
        m_tabHost.addTab(spec);  
    }  
}  

XML布局文件:

<?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"  
            android:paddingLeft="1dip"  
            android:paddingRight="1dip"  
            android:paddingTop="4dip"  
        />  
          
        <FrameLayout android:id="@android:id/tabcontent"  
            android:layout_width="fill_parent"  
            android:layout_height="0dip"  
            android:layout_weight="1"  
        />       
    </LinearLayout>  
</TabHost>  

 

注意：每一个Activity都要在配置文件中注册