<?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" > 
 <include layout="@layout/head" /> 
  
 <LinearLayout 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content"> 
   <RadioGroup 
    android:id="@+id/add_tab_group" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:gravity="center" 
    android:paddingTop="6dp" 
    android:paddingBottom="6dp" 
    android:background="@drawable/big_button_up" 
    android:orientation="horizontal" 
     > 
 
    <RadioButton 
     android:id="@+id/main_tab_addExam" 
     style="@style/MMTabButton1" 
     android:layout_weight="1.0" 
     android:checked="true" 
     android:text="添加考试" /> 
 
    <RadioButton 
     android:id="@+id/main_tab_myExam" 
     style="@style/MMTabButton1" 
     android:layout_weight="1.0" 
      
     android:text="我的考试" /> 
 
    <RadioButton 
     android:id="@+id/main_tab_message" 
     style="@style/MMTabButton1" 
     android:layout_weight="1.0" 
     android:text="我的通知" /> 
 
    <RadioButton 
     android:id="@+id/main_tab_testing" 
     style="@style/MMTabButton1" 
     android:layout_weight="1.0" 
     android:text="测试" /> 
    <RadioButton 
     android:id="@+id/main_tab_settings" 
     style="@style/MMTabButton1" 
     android:layout_weight="1.0" 
     android:text="设置" /> 
   </RadioGroup> 
    
  </LinearLayout> 
   
 <LinearLayout 
  android:id="@+id/container" 
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent" 
  android:layout_weight="1" > 
 </LinearLayout> 
</LinearLayout> 

import android.app.ActivityGroup; 
import android.app.AlertDialog; 
import android.app.LocalActivityManager; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.KeyEvent; 
import android.view.View; 
import android.view.animation.Animation; 
import android.view.animation.AnimationUtils; 
import android.widget.Button; 
import android.widget.LinearLayout; 
import android.widget.RadioGroup; 
import android.widget.TextView; 
import android.widget.RadioGroup.OnCheckedChangeListener; 
 
public class AddExamActivity extends ActivityGroup { 
 
 protected Button btn_leftTop, btn_rightTop; 
 protected TextView tv_head; 
  
 private static LocalActivityManager manager; 
 private RadioGroup radioGroup; 
 private static LinearLayout container; 
 public static Context context; 
  
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  // TODO Auto-generated method stub 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.addexam); 
  context=this; 
  initHead(); 
   
  manager=getLocalActivityManager(); 
  container= (LinearLayout)findViewById(R.id.container); 
  radioGroup=(RadioGroup) this.findViewById(R.id.add_tab_group); 
   
  container.removeAllViews(); 
  container.addView(manager.startActivity( 
    "PAGE_0", 
    new Intent(context, MyExamActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
    .getDecorView()); 
   
  radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() { 
    
   @Override 
   public void onCheckedChanged(RadioGroup group, int checkedId) { 
    // TODO Auto-generated method stub 
    switch (checkedId) { 
    case R.id.main_tab_addExam://添加考试 
     container.removeAllViews(); 
     container.addView(manager.startActivity( 
       "PAGE_0", 
       new Intent(context, MyExamActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
       .getDecorView()); 
     break; 
    case R.id.main_tab_myExam://我的考试 
     container.removeAllViews(); 
     container.addView(manager.startActivity( 
       "PAGE_1", 
       new Intent(context, MyMessageActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
       .getDecorView()); 
     break; 
    case R.id.main_tab_message://我的通知 
     container.removeAllViews(); 
     container.addView(manager.startActivity( 
       "PAGE_2", 
       new Intent(context, SettingActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
       .getDecorView()); 
     break; 
    case R.id.main_tab_testing://测试 
     container.removeAllViews(); 
     container.addView(manager.startActivity( 
       "PAGE_3", 
       new Intent(context, TestingActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
       .getDecorView()); 
     break; 
    case R.id.main_tab_settings://设置 
     container.removeAllViews(); 
     container.addView(manager.startActivity( 
       "PAGE_4", 
       new Intent(context, MyExamActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
       .getDecorView()); 
     break; 
    default: 
     //tabHost.setCurrentTabByTag("我的考试"); 
     break; 
    } 
   } 
  }); 
 } 
 public static void changeTo(){ 
  Animation slideLeftIn = AnimationUtils.loadAnimation(context, R.anim.slide_bottom_in_no_alpha); 
   
  container.removeAllViews(); 
  container.addView(manager.startActivity( 
    "PAGE_4", 
    new Intent(context, MyExamActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) 
    .getDecorView()); 
  container.startAnimation(slideLeftIn); 
 } 
 protected void initHead() { 
  btn_leftTop = (Button) findViewById(R.id.btn_leftTop); 
  btn_rightTop = (Button) findViewById(R.id.btn_rightTop); 
  tv_head = (TextView) findViewById(R.id.tv_head); 
   
  btn_leftTop.setVisibility(View.INVISIBLE); 
  tv_head.setText("添加考试"); 
 } 
  
 @Override 
 public boolean onKeyDown(int keyCode, KeyEvent event) { 
  // TODO Auto-generated method stub 
 
  if (keyCode == KeyEvent.KEYCODE_BACK) { 
 
   AlertDialog.Builder builder = new AlertDialog.Builder(getParent()); 
   builder.setMessage("你确定退出吗？") 
     .setCancelable(false) 
     .setPositiveButton("确定", 
       new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, 
          int id) { 
         finish(); 
         System.exit(0); 
        } 
       }) 
     .setNegativeButton("返回", 
       new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, 
          int id) { 
         dialog.cancel(); 
        } 
       }); 
   AlertDialog alert = builder.create(); 
   alert.show(); 
   return true; 
  } 
 
  return super.onKeyDown(keyCode, event); 
 } 
}