public class MainActivity extends TabActivity {

    private PopupWindow pop;

    private TabHost tabhost;

    private RadioGroup radiogroup;

    private RadioButton tab1,tab2;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.test);

        //将layout的xml布局文件实例化为View类对象

        LayoutInflater inflater =LayoutInflater.from(this);

        View view =inflater.inflate(R.layout.mypop, null);

        //创建PopupWindow，参数为显示对象，宽，高

        pop =new PopupWindow(view, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        //PopupWindow的设置

        pop.setBackgroundDrawable(new BitmapDrawable());

        //点击外边消失

        pop.setOutsideTouchable(true);

        //设置此参数获得焦点，否则无法点击

        pop.setFocusable(true);

        //设置文本监听事件

        TextView text =(TextView) findViewById(R.id.topmenu);

        text.setOnClickListener(new OnClickListener(){

            @Override

            //判断是否已经显示，点击时如显示则隐藏，隐藏则显示

            public void onClick(View v) {

                if(pop.isShowing()){

                    pop.dismiss();

                }else{

                    pop.showAsDropDown(v);

                }

            }

        });

       //tabhost

        tabhost=getTabHost();

        tabhost.addTab(tabhost.newTabSpec("a").setContent(R.id.tab1).setIndicator("a"));

        tabhost.addTab(tabhost.newTabSpec("b").setContent(R.id.tab2).setIndicator("b"));

      //选项

        radiogroup = (RadioGroup) view.findViewById(R.id.radiogroup);

       //设置radiobutton监听事件

       radioCheckListener l =new radioCheckListener();

       radiogroup.setOnCheckedChangeListener(l);

    }

    //点击菜单，切换卡并让菜单消失

    public class radioCheckListener implements OnCheckedChangeListener{

        @Override

        public void onCheckedChanged(RadioGroup group, int checkedId) {

            // TODO Auto-generated method stub

            switch(checkedId){

            case R.id.tabps:

                tabhost.setCurrentTab(0);

                pop.dismiss();

                break;

            case R.id.tabhtml:

                tabhost.setCurrentTab(1);

                pop.dismiss();

                break;

            }                    

        }

    }

}

<?xml version="1.0" encoding="utf-8"?>

    <RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"

         android:layout_width="match_parent"

         android:layout_height="wrap_content"

         android:orientation="vertical"

         android:background="#393C39"

         android:padding="10dp"

         android:id="@+id/radiogroup"

         >

         <RadioButton

             android:id="@+id/tabps"

             android:layout_width="match_parent"

             android:layout_height="match_parent"

             android:text="Photoshop"

               android:textColor="#ffffff"

               android:checked="true"

             />

          <RadioButton

              android:id="@+id/tabhtml"

             android:layout_width="match_parent"

             android:layout_height="match_parent"

             android:textColor="#ffffff"

             android:text="HTML"

             />

     </RadioGroup>

<?xml version="1.0" encoding="utf-8"?>

<TabHost xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:id="@android:id/tabhost"

     >

<LinearLayout

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:background="@drawable/titlebg"

        android:gravity="center"

        android:orientation="vertical" >

        <TextView

            android:id="@+id/topmenu"

            android:layout_width="wrap_content"

            android:layout_height="46dp"

            android:clickable="true"

            android:drawableRight="@drawable/ic_menu_trangle_down"

            android:gravity="center_vertical"

            android:text="全部课程"

            android:textColor="#ffffff" />

    </LinearLayout>

    <TabWidget

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:id="@android:id/tabs"

        android:visibility="gone"

        >

    </TabWidget>

    <FrameLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:id="@android:id/tabcontent"

        >

        <LinearLayout

            android:id="@+id/tab1"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:orientation="vertical"

            android:background="#ff0000"

            ></LinearLayout>

         <LinearLayout

            android:id="@+id/tab2"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:orientation="vertical"

            android:background="#000000"

            ></LinearLayout>

    </FrameLayout>

</LinearLayout>

</TabHost>