Android - 使用 TabHost 制作子选项卡

Question

是否可以在 TabHost 制作的选项卡中创建子选项卡？如果是这样，怎么办？在这种情况下，我无法找到任何有价值的资源或帮助。

谢谢

Answer 1

可以将 TabActivity 放入 Tab 中。

假设您有带有两个 Tab 的 MainTabActivity。第一个 Tab 可以保存 FirstSubTabActivity，第二个 Tab 可以保存 SecondSubTabActivity。

下面是一个示例：

主要活动：

public class MainTabActivity extends TabActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        TabHost tabHost = getTabHost();
        TabHost.TabSpec spec;
        Intent intent;

        intent = new Intent().setClass( this, FirstSubTabActivity.class );
        spec = tabHost.newTabSpec( "FirstTab" ).setIndicator( "One" ).setContent( intent );
        tabHost.addTab( spec );

        intent = new Intent().setClass( this, SecondSubTabActivity.class );
        spec = tabHost.newTabSpec( "SecondTab" ).setIndicator( "Two" ).setContent( intent );
        tabHost.addTab( spec );
    }
}

第一个子活动：

public class FirstSubTabActivity extends TabActivity {
   /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.main);

       TabHost tabHost = getTabHost();
       TabHost.TabSpec spec;
       Intent intent;

       intent = new Intent().setClass( this, SomeActivity.class );
       spec = tabHost.newTabSpec( "SubTab" ).setIndicator( "One" ).setContent( intent );
       tabHost.addTab( spec );

       intent = new Intent().setClass( this, SomeOtherActivity.class );
       spec = tabHost.newTabSpec( "AnotherSubTab" ).setIndicator( "Two" ).setContent( intent );
       tabHost.addTab( spec );
   }
}

第二个子活动：

public class SecondSubTabActivity extends TabActivity {
   /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.main);

       TabHost tabHost = getTabHost();
       TabHost.TabSpec spec;
       Intent intent;

       intent = new Intent().setClass( this, SomeThirdActivity.class );
       spec = tabHost.newTabSpec( "ThirdSubTab" ).setIndicator( "One" ).setContent( intent );
       tabHost.addTab( spec );

       intent = new Intent().setClass( this, SomeFourthActivity.class );
       spec = tabHost.newTabSpec( "FourthSubTab" ).setIndicator( "Two" ).setContent( intent );
       tabHost.addTab( spec );
   }
}