Question

默认情况下，tabhost的行为似乎会自动选择第一个选项卡并显示其内容。问题是，我想设置它的默认页面。（这意味着，默认情况下，tabhost未被选中，并显示一些主页内容，（不是tabhost的内容））。如何实现这样的功能？感谢。

主要活动

public class LandingPage extends FragmentActivity {
    public FragmentTabHost tabHost;
    public Resources res;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.landing_page);
        res = getResources();
        tabHost = (FragmentTabHost) findViewById(R.id.tabhost);
        tabHost.setup(this, getSupportFragmentManager(), R.id.tabcontent);  
        tabHost.addTab(tabHost.newTabSpec("About").setIndicator("",res.getDrawable(R.drawable.btn_about)),About.class, null);
        tabHost.addTab(tabHost.newTabSpec("Selfie").setIndicator("",res.getDrawable(R.drawable.btn_selfie)),About.class, null);
        tabHost.addTab(tabHost.newTabSpec("Gallery").setIndicator("",res.getDrawable(R.drawable.btn_gallery)),About.class, null);
        tabHost.addTab(tabHost.newTabSpec("LeaderBoard").setIndicator("",res.getDrawable(R.drawable.btn_board)),About.class, null);
        tabHost.addTab(tabHost.newTabSpec("Events").setIndicator("",res.getDrawable(R.drawable.btn_events)),Events.class, null);
    }
}

XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <android.support.v4.app.FragmentTabHost
        android:id="@+id/tabhost"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:orientation="horizontal"
        android:background="@drawable/share_navigation_bar_bg" />

    <FrameLayout
        android:id="@+id/tabcontent"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

</LinearLayout>

Answer 1

我修好了。添加一个标签并设置它的可见性是View.gone

如何在android中设置tab主机的默认页面？

1 个答案: