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Asked: 2026-06-04T18:45:59+00:00

I am making a tab app using this tutorial . When I run my

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I am making a tab app using this tutorial. When I run my app on device it gives me Force close message. Here is my main activity code and my logcat is below. I have no idea where am I making mistake. here is the code

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

    Resources res = getResources(); // Resource object to get Drawables
    TabHost tabHost = getTabHost();  // The activity TabHost
    TabHost.TabSpec spec;  // Resusable TabSpec for each tab
    Intent intent;  // Reusable Intent for each tab

    //Artist Tab
    intent = new Intent(this, Artists.class);
    spec = tabHost.newTabSpec("artists").setIndicator("Artist", res.getDrawable(R.drawable.tab_icon)).setContent(intent);
    tabHost.addTab(spec);

  //Songs
    intent = new Intent(this, Songs.class);
    spec = tabHost.newTabSpec("songs").setIndicator("Songs", res.getDrawable(R.drawable.tab_icon)).setContent(intent);
    tabHost.addTab(spec);

  //Albums
    intent = new Intent(this, Album.class);
    spec = tabHost.newTabSpec("artists").setIndicator("Artist", res.getDrawable(R.drawable.tab_icon)).setContent(intent);
    tabHost.addTab(spec);

    tabHost.setCurrentTab(1);
}
}

here is my logcat

05-28 19:16:51.421: D/dalvikvm(15189): GC_EXTERNAL_ALLOC freed 43K, 50% free 2725K/5379K, external 0K/0K, paused 33ms
05-28 19:16:51.441: D/AndroidRuntime(15189): Shutting down VM
05-28 19:16:51.441: W/dalvikvm(15189): threadid=1: thread exiting with uncaught exception (group=0x4001e578)
05-28 19:16:51.451: E/AndroidRuntime(15189): FATAL EXCEPTION: main
05-28 19:16:51.451: E/AndroidRuntime(15189): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.zafar.tablayout/com.zafar.tablayout.TabLayoutActivity}: java.lang.RuntimeException: Your content must have a TabHost whose id attribute is 'android.R.id.tabhost'
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.os.Handler.dispatchMessage(Handler.java:99)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.os.Looper.loop(Looper.java:130)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.ActivityThread.main(ActivityThread.java:3691)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at java.lang.reflect.Method.invokeNative(Native Method)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at java.lang.reflect.Method.invoke(Method.java:507)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at dalvik.system.NativeStart.main(Native Method)
05-28 19:16:51.451: E/AndroidRuntime(15189): Caused by: java.lang.RuntimeException: Your content must have a TabHost whose id attribute is 'android.R.id.tabhost'
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.TabActivity.onContentChanged(TabActivity.java:105)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:218)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.Activity.setContentView(Activity.java:1663)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at com.zafar.tablayout.TabLayoutActivity.onCreate(TabLayoutActivity.java:14)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-28 19:16:51.451: E/AndroidRuntime(15189):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
05-28 19:16:51.451: E/AndroidRuntime(15189):    ... 11 more
05-28 19:16:57.256: I/Process(15189): Sending signal. PID: 15189 SIG: 9

Update

Here is my tabhost in main.xml

<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/tabHost"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

Second Update

Logcat after changing tabHost to tabhost

05-28 19:47:56.271: I/Process(16575): Sending signal. PID: 16575 SIG: 9
05-28 19:47:58.381: D/dalvikvm(16782): GC_EXTERNAL_ALLOC freed 46K, 50% free 2725K/5379K, external 0K/0K, paused 20ms
05-28 19:47:58.411: D/AndroidRuntime(16782): Shutting down VM
05-28 19:47:58.411: W/dalvikvm(16782): threadid=1: thread exiting with uncaught exception (group=0x4001e578)
05-28 19:47:58.411: E/AndroidRuntime(16782): FATAL EXCEPTION: main
05-28 19:47:58.411: E/AndroidRuntime(16782): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.zafar.tablayout/com.zafar.tablayout.TabLayoutActivity}: java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.os.Handler.dispatchMessage(Handler.java:99)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.os.Looper.loop(Looper.java:130)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.ActivityThread.main(ActivityThread.java:3691)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at java.lang.reflect.Method.invokeNative(Native Method)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at java.lang.reflect.Method.invoke(Method.java:507)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at dalvik.system.NativeStart.main(Native Method)
05-28 19:47:58.411: E/AndroidRuntime(16782): Caused by: java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.widget.TabHost.setup(TabHost.java:114)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.widget.TabHost.setup(TabHost.java:163)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.TabActivity.onContentChanged(TabActivity.java:109)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:218)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.Activity.setContentView(Activity.java:1663)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at com.zafar.tablayout.TabLayoutActivity.onCreate(TabLayoutActivity.java:14)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-28 19:47:58.411: E/AndroidRuntime(16782):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
05-28 19:47:58.411: E/AndroidRuntime(16782):    ... 11 more
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1 Answer

  1. Editorial Team

    In your main.xml, what is the ID of the TabHost?

    It must be android:id="@android:id/tabhost".

    Edit

    Your TabWidget must be defined as:

    <TabWidget
        android:id="@android:id/tabs"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

    It’s actually quite easy to see from the logcat: “Your TabHost must have a TabWidget whose id attribute is ‘android.R.id.tabs'”.

    It would be easier if you posted your entire xml layout file, so we can see all possible errors.

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