Android Guides | Samples

Android.App.TabActivity Class

See Also: TabActivity

Syntax

[Android.Runtime.Register("android/app/TabActivity", DoNotGenerateAcw=true)]
[System.Obsolete("This class is obsoleted in this android platform")]
public class TabActivity : ActivityGroup

Remarks

For apps developing against Build+VERSION_CODES.Honeycomb or later, tabs are typically presented in the UI using the new ActionBar.NewTab and related APIs for placing tabs within their action bar area.

A replacement for TabActivity can also be implemented by directly using TabHost. You will need to define a layout that correctly uses a TabHost with a TabWidget as well as an area in which to display your tab content. A typical example would be:

xml Example

<android.support.v4.app.FragmentTabHost
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TabWidget
            android:id="@android:id/tabs"
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0"/>

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

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

    </LinearLayout>
</android.support.v4.app.FragmentTabHost>

The implementation needs to take over responsibility for switching the shown content when the user switches between tabs.

java Example

import com.example.android.supportv4.R;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;

/**
 * This demonstrates how you can implement switching between the tabs of a
 * TabHost through fragments, using FragmentTabHost.
 */
public class FragmentTabs extends FragmentActivity {
    private FragmentTabHost mTabHost;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.fragment_tabs);
        mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
        mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);

        mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
                FragmentStackSupport.CountingFragment.class, null);
        mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Contacts"),
                LoaderCursorSupport.CursorLoaderListFragment.class, null);
        mTabHost.addTab(mTabHost.newTabSpec("custom").setIndicator("Custom"),
                LoaderCustomSupport.AppListFragment.class, null);
        mTabHost.addTab(mTabHost.newTabSpec("throttle").setIndicator("Throttle"),
                LoaderThrottleSupport.ThrottledLoaderListFragment.class, null);
    }
}

Also see the Fragment Tabs Pager sample for an example of using the support library's ViewPager to allow the user to swipe the content to switch between tabs.

[Android Documentation]

Requirements

Namespace: Android.App
Assembly: Mono.Android (in Mono.Android.dll)
Assembly Versions: 0.0.0.0
Since: Added in API level 1Deprecated since API level 13

The members of Android.App.TabActivity are listed below.

See Also: ActivityGroup

Public Constructors

Protected Constructors

A constructor used when creating managed representations of JNI objects; called by the runtime.

Public Properties

[read-only]
TabHostTabHost. Returns the TabHost the activity is using to host its tabs.
[read-only]
TabWidgetTabWidget. Returns the TabWidget the activity is using to draw the actual tabs.

Protected Properties

[read-only]
override
ThresholdClassIntPtr. This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
[read-only]
override
ThresholdTypeType. This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Public Methods

SetDefaultTab(Int32)
Sets the default tab that is the first tab highlighted.
SetDefaultTab(String)
Sets the default tab that is the first tab highlighted.