TabHost使用（一）

第一步：創建佈局文件

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:padding="5dp">
        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" />
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:padding="5dp" />
    </LinearLayout>
</TabHost>

第二步：創建三個Activity作爲Tabhost內容

public class Activity1 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  TextView textview = new TextView(this);
        textview.setText("This is one tab");
        setContentView(textview);

}

}

第三步：測試類

public class Activity1 extends Activity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  TextView textview = new TextView(this);
        textview.setText("This is one tab");
        setContentView(textview);

 }

}

 

public class TabHostTestActivity extends TabActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TabHost tabHost=getTabHost();
        tabHost.addTab(tabHost.newTabSpec("tab1").setIndicator("tab1").setContent(new Intent(TabHostTestActivity.this
          ,Activity1.class)));
        tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("tab2").setContent(new Intent(TabHostTestActivity.this
          ,Activity2.class)));
        tabHost.addTab(tabHost.newTabSpec("tab3").setIndicator("tab3").setContent(new Intent(TabHostTestActivity.this
          ,Activity3.class)));
        tabHost.setCurrentTab(1);
    }
}、

第四步：演示效果