Android程序——使用选项卡实现界面切换

结果图如下：

MainActivity.java

package com.example.task1.activity;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.os.Bundle;  
import android.app.TabActivity;  
import android.content.Intent;  
import android.content.res.Resources;  
import android.view.Menu;  
import android.widget.TabHost;  
import android.widget.TabHost.TabSpec;  
public class MainActivity extends TabActivity {

	TabHost tabHost;  
	    TabSpec tabSpec01,tabSpec02,tabSpec03; 
	    Intent intent01,intent02,intent03;  
	    @SuppressWarnings("deprecation")  
	    @Override  
	    protected void onCreate(Bundle savedInstanceState) {  
	       super.onCreate(savedInstanceState);  
	        setContentView(R.layout.activity_tab);  
	         
	         tabHost=getTabHost();    
	         intent01 = new Intent(this, One.class);  
	         intent02 = new Intent(this, Two.class);  
	         intent03= new Intent(this, Three.class); 
	         tabSpec01 = tabHost.newTabSpec("system").setIndicator("Blog",null).  
	                                                                              
	                    setContent(intent01);        
	         tabSpec02 = tabHost.newTabSpec("hardware").setIndicator("Test",null).  
	                    setContent(intent02);  
	         
	         tabSpec03 =tabHost.newTabSpec("apple").setIndicator("bag",null).
	        		    setContent(intent03);
	              
	         tabHost.addTab(tabSpec01);    
	         tabHost.addTab(tabSpec02); 
	         tabHost.addTab(tabSpec03); 
	            
	         tabHost.setCurrentTab(0);  
	          
	          
	    }  
	  
}  
   

one.java

package com.example.task1.activity;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class One extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_one);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.one, menu);
		return true;
	}

}

Two.java

package com.example.task1.activity;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class Two extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_two);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.two, menu);
		return true;
	}

}

Three.java

package com.example.task1.activity;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class Three extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_three);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.three, menu);
		return true;
	}

}

xml文件

activity_one

activity_two

activity_three

acaivity_tab

 
    android:id="@android:id/tabhost"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent" >  
  
          android:layout_width="fill_parent"  
        android:layout_height="fill_parent" >  


                    android:id="@android:id/tabs"  
            android:layout_width="fill_parent"  
            android:layout_height="50dp"  
            android:gravity="bottom"/>  
  
                    android:id="@android:id/tabcontent"  
            android:layout_width="fill_parent"  
            android:layout_marginTop="50dp"
            android:layout_height="fill_parent" />