Theming issue with ABS 4.0 and Android 4.0.3 ?

[Carlos P]

Hullo

Forgive me if I'm missing something, but I don't believe I've changed anything since testing out Beta 5, yet am getting this error.

My application's theme has a parent of Theme.Sherlock.  It is defined in the manifest as so:

    <application

        android:icon="@drawable/main_icon"

        android:label="@string/app_name" 

        android:name="com.myapp.MyApplication"

        android:theme="@style/Theme.BCBase"

        >

Then, my theme extends from Theme.Sherlock, in file values/theme.xml:

<?xml version="1.0" encoding="utf-8"?>

<resources >    

    <style name="Theme.BCBase" parent="Theme.Sherlock">

        <item name="android:windowNoTitle">true</item>

    </style>

</resources>

This runs with no problem on older versions of Android, e.g. 2.3.3, but on ICS I get a NullPointerException, since actionBar is returned as NULL from getSupportActionBar in this line:

    public void onCreate(Bundle savedInstanceState) {

   super.onCreate(savedInstanceState);

...

        // Configure action bar

        ActionBar actionBar = getSupportActionBar();  <===  returns NULL

      ...

}

Any ideas?

Carlos

[Jake Wharton]

Because <item name="android:windowNoTitle">true</item> hides the action bar on ICS+. If you added <item name="windowNoTitle">true</item> it would be hidden on pre-ICS too.

---
Jake Wharton
http://about.me/jakewharton

[Carlos P]

Sorry, I forgot to say, I'm using the very latest Sherlock Maps plugin (added as an external JAR to my app), so my activity extends from SherlockMapActivity, if that makes any difference. 

[Carlos P]

Right - got it.  Thanks Jake, and cheers for such a speedy reply too!