TabHost的实现有两种方式，第一种继承TabActivity，从TabActivity中用getTabHost()方法获取TabHost。各个Tab中的内容在布局文件中定义就行了。

mainActivity.xml

private TabHost myTabHost;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        //setContentView(R.layout.main);

       myTabHost = this.getTabHost();

        LayoutInflater.from(this).inflate(R.layout.main,

                myTabHost.getTabContentView(), true);

        myTabHost.addTab(myTabHost

                .newTabSpec("选项卡1")

                .setIndicator("选项卡1",

                        getResources().getDrawable(R.drawable.img01))

                .setContent(R.id.ll01));

        myTabHost.addTab(myTabHost

                .newTabSpec("选项卡2")

                .setIndicator("选项卡2",

                        getResources().getDrawable(R.drawable.img02))

                .setContent(R.id.ll01));

        myTabHost.addTab(myTabHost

                .newTabSpec("选项卡3")

                .setIndicator("选项卡3",

                        getResources().getDrawable(R.drawable.img03))

                .setContent(R.id.ll03));

    }

Tab内容布局文件：

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

<FrameLayout xmlns:android="

    android:orientation="vertical" android:layout_width="fill_parent"

    android:layout_height="fill_parent">

    <LinearLayout android:id="@+id/ll01" android:layout_width="fill_parent"

        android:layout_height="fill_parent" android:gravity="center_horizontal"

        android:orientation="vertical">

        <EditText android:id="@+id/widget34" android:layout_width="fill_parent"

            android:layout_height="wrap_content" android:text="EditText"

            android:textSize="18sp">

        </EditText>

        <Button android:id="@+id/widget30" android:layout_width="wrap_content"

            android:layout_height="wrap_content" android:text="Button">

        </Button>

    </LinearLayout>

    <LinearLayout android:id="@+id/ll02" android:layout_width="fill_parent"

        android:layout_height="fill_parent" android:gravity="center_horizontal"

        android:orientation="vertical">

        <AnalogClock android:id="@+id/widget36"

            android:layout_width="wrap_content" android:layout_height="wrap_content">

        </AnalogClock>

    </LinearLayout>

    <LinearLayout android:id="@+id/ll03" android:layout_width="fill_parent"

        android:layout_height="fill_parent" android:gravity="center_horizontal"

        android:orientation="vertical">

        <RadioGroup android:id="@+id/widget43"

            android:layout_width="166px" android:layout_height="98px"

            android:orientation="vertical">

            <RadioButton android:id="@+id/widget44"

                android:layout_width="wrap_content" android:layout_height="wrap_content"

                android:text="RadioButton">

            </RadioButton>

            <RadioButton android:id="@+id/widget45"

                android:layout_width="wrap_content" android:layout_height="wrap_content"

                android:text="RadioButton">

            </RadioButton>

        </RadioGroup>

    </LinearLayout>

</FrameLayout>

 

第二种方式，不继承TabActivity，在布局文件中定义TabHost即可，但是TabWidget的id必须是@android:id/tabs，FrameLayout的id必须是@android:id/tabcontent。

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

<LinearLayout xmlns:android="  

    android:id="@+id/hometabs"

    android:orientation="vertical"

    android:layout_width="fill_parent"  

    android:layout_height="fill_parent"> 

    <TabHost android:id="@+id/tabhost"

         android:layout_width="fill_parent"

         android:layout_height="wrap_content">

         <LinearLayout

            android:orientation="vertical"

            android:layout_width="fill_parent"

            android:layout_height="fill_parent">

            

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

              android:orientation="horizontal"

              android:layout_width="fill_parent"

              android:layout_height="wrap_content">

            </TabWidget>

         

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

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content">

                      <TextView android:id="@+id/view1"

                        android:layout_width="fill_parent"

                        android:layout_height="fill_parent" android:text="Tab1"/>

                    <TextView android:id="@+id/view2"

                        android:layout_width="fill_parent"

                        android:layout_height="fill_parent" android:text="Tab2"/>

                    <TextView android:id="@+id/view3"

                        android:layout_width="fill_parent"

                        android:layout_height="fill_parent" android:text="Tab3"/>

             </FrameLayout>

         

         </LinearLayout>

    </TabHost>

</LinearLayout>

mainActivity

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        TabHost tabHost = (TabHost) findViewById(R.id.tabhost);

        tabHost.setup();

        TabWidget tabWidget = tabHost.getTabWidget();

        tabHost.addTab(tabHost

                .newTabSpec("tab1")

                .setIndicator("tab1",

                        getResources().getDrawable(R.drawable.img01))

                .setContent(R.id.view1));

        tabHost.addTab(tabHost

                .newTabSpec("tab2")

                .setIndicator("tab2",

                        getResources().getDrawable(R.drawable.img02))

                .setContent(R.id.view2));

        tabHost.addTab(tabHost

                .newTabSpec("tab3")

                .setIndicator("tab3",

                        getResources().getDrawable(R.drawable.img03))

                .setContent(R.id.view3));