[android help] Setting ActionBarSherlock Theme for Android app

READ UPDATE 2 BELOW FOR THE ANSWER

I'm trying to use ActionBarSherlock in my app. I checked out the 4.0.0 release from the project github repo, built it in Netbeans, then copied the library-4.0.0.jar file into my project's lib directory (I'm not using Eclipse).

It's just a skeleton activity right now, and it launches just fine in ICS, but when I run it on Gingerbread I get the following exception complaining that I haven't the app theme to Theme.Sherlock (or similar):

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.arashpayan.prayerbook/com.arashpayan.prayerbook.PrayerBook}: java.lang.IllegalStateException: You must use Theme.Sherlock, Theme.Sherlock.Light, Theme.Sherlock.Light.DarkActionBar, or a derivative.
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:130)
    at android.app.ActivityThread.main(ActivityThread.java:3683)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: You must use Theme.Sherlock, Theme.Sherlock.Light, Theme.Sherlock.Light.DarkActionBar, or a derivative.
    at com.actionbarsherlock.internal.ActionBarSherlockCompat.generateLayout(ActionBarSherlockCompat.java:987)
    at com.actionbarsherlock.internal.ActionBarSherlockCompat.installDecor(ActionBarSherlockCompat.java:899)
    at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:852)
    at com.actionbarsherlock.ActionBarSherlock.setContentView(ActionBarSherlock.java:655)
    at com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:316)
    at com.arashpayan.prayerbook.PrayerBook.onCreate(PrayerBook.java:44)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
    ... 11 more

The line it complains about (PrayerBook:44) is the call to setContentView. The app just consists of a single activity with an onCreate() method that I call setTheme() from at the top:

public void onCreate(Bundle savedInstanceState)
{
        setTheme(com.actionbarsherlock.R.style.Theme_Sherlock);
        super.onCreate(savedInstanceState);

        TextView rootTextView = new TextView(this);
        rootTextView.setText("Hello, world!");
        setContentView(rootTextView);

        getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        ActionBar.Tab tab = getSupportActionBar().newTab();
        tab.setText("Prayers");
        getSupportActionBar().addTab(tab);

        tab = getSupportActionBar().newTab();
        tab.setText("Recents");
        getSupportActionBar().addTab(tab);

        tab = getSupportActionBar().newTab();
        tab.setText("Bookmarks");
        getSupportActionBar().addTab(tab);
}

I must be setting the theme incorrectly, but I just don't see how. Can anyone help?

UPDATE Below, CommonsWare noted that the theme can be set in the AndroidManifest.xml. I've tried that like so:

                          android:label="@string/app_name"
                  android:configChanges="orientation|keyboardHidden|screenLayout|uiMode|mcc|mnc|locale|navigation|fontScale|screenSize">
            
                
                
            
        
                    android:name="LanguagesActivity" />

but Ant gives me an error when it tries to build the app:

/Users/arash/coding/prayerbook/AndroidManifest.xml:7: error: Error: No resource found that matches the given name (at 'theme' with value '@style/Theme.Sherlock').

UPDATE 2 With CommonsWare's help in his follow up comments, I was able to get it working. I needed to add ActionBarSherlock as a project dependency. To do so,

1) I removed library-4.0.0.jar and android-support-4.0.jar from my project's lib directory.

2) Next, navigate into the library folder inside the root of the ActionBarSherlock directory checked out from github. Type android update project so a build.xml and proguard.cfg file will be created for the library.

3) Finally, cd back into the main project directory and add ABS as a library dependency with android update project --path . --library ../ActionBarSherlock/library The path to the --library in the command will vary according to where you checked out the repo. ActionBarSherlock and my app's project directory were sibling directories.

.

stackoverflow.comm