TabHost与RadioGroup结合完成的菜单【带效果图】5个Activity

 效果图：

首先看布局文件：

<?xml version="1.0" encoding="UTF-8"?>
<TabHost android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent"
  xmlns:android="http://schemas.android.com/apk/res/android">
    <LinearLayout 
        android:orientation="vertical" 
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent">
        <FrameLayout 
            android:id="@android:id/tabcontent" 
            android:layout_width="fill_parent" 
            android:layout_height="0.0dip" 
            android:layout_weight="1.0" />
        <TabWidget 
            android:id="@android:id/tabs" 
            android:visibility="gone" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" 
            android:layout_weight="0.0" />
        <RadioGroup 
            android:gravity="center_vertical" 
            android:layout_gravity="bottom" 
            android:orientation="horizontal" 
            android:id="@+id/main_radio" 
            android:background="@drawable/maintab_toolbar_bg" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content">
            <RadioButton 
                android:id="@+id/radio_button0" 
                android:tag="radio_button0" 
                android:layout_marginTop="2.0dip" 
                android:text="@string/alarm" 
                android:drawableTop="@drawable/icon_1" 
                style="@style/main_tab_bottom" />
            <RadioButton 
                android:id="@+id/radio_button1" 
                android:tag="radio_button1" 
                android:layout_marginTop="2.0dip" 
                android:text="@string/message" 
                android:drawableTop="@drawable/icon_2" 
                style="@style/main_tab_bottom" />
            <RadioButton 
                android:id="@+id/radio_button2" 
                android:tag="radio_button2" 
                android:layout_marginTop="2.0dip" 
                android:text="@string/photo" 
                android:drawableTop="@drawable/icon_3" 
                style="@style/main_tab_bottom" />
            <RadioButton 
                android:id="@+id/radio_button3" 
                android:tag="radio_button3" 
                android:layout_marginTop="2.0dip" 
                android:text="@string/music" 
                android:drawableTop="@drawable/icon_4" 
                style="@style/main_tab_bottom" />
            <RadioButton 
                android:id="@+id/radio_button4" 
                android:tag="radio_button4" 
                android:layout_marginTop="2.0dip" 
                android:text="@string/setting" 
                android:drawableTop="@drawable/icon_5" 
                style="@style/main_tab_bottom" />
        </RadioGroup>
    </LinearLayout>
</TabHost>

 

需要注意的是，如果用TabHost这个控件，其中有几个ID是必须这么写的，android:id="@android:id/tabhost   ；android:id="@android:id/tabcontent" ；android:id="@android:id/tabs" ；之所以要这么写是因为在TabHost这个类中。需要实例化上述这个ID的控件 
在TabActivity中有么个方法：

 

 

package com.iteye.androidtoast;

import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TabHost;

public class MainActivity extends TabActivity implements OnCheckedChangeListener{
    
    private TabHost mHost;
    private RadioGroup radioderGroup;
    
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.maintabs);
        //实例化TabHost
        mHost=this.getTabHost();
        
      //添加选项卡
        mHost.addTab(mHost.newTabSpec("ONE").setIndicator("ONE")
                    .setContent(new Intent(this,OneActivity.class)));
        mHost.addTab(mHost.newTabSpec("TWO").setIndicator("TWO")
                .setContent(new Intent(this,TwoActivity.class)));
        mHost.addTab(mHost.newTabSpec("THREE").setIndicator("THREE")
                .setContent(new Intent(this,ThreeActivity.class)));
        mHost.addTab(mHost.newTabSpec("FOUR").setIndicator("FOUR")
                .setContent(new Intent(this,FourActivity.class)));
        mHost.addTab(mHost.newTabSpec("FIVE").setIndicator("FIVE")
                .setContent(new Intent(this,FiveActivity.class)));
        
        radioderGroup = (RadioGroup) findViewById(R.id.main_radio);
        radioderGroup.setOnCheckedChangeListener(this);
    }
     
    public void onCheckedChanged(RadioGroup group, int checkedId) {
        switch(checkedId){
        case R.id.radio_button0:
            mHost.setCurrentTabByTag("ONE");
            break;
        case R.id.radio_button1:
            mHost.setCurrentTabByTag("TWO");
            break;
        case R.id.radio_button2:
            mHost.setCurrentTabByTag("THREE");
            break;
        case R.id.radio_button3:
            mHost.setCurrentTabByTag("FOUR");
            break;
        case R.id.radio_button4:
            mHost.setCurrentTabByTag("FIVE");
            break;
        }        
    }
}

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