android preferenceactivity padding in landscape orientation

Question

How do I remove the large amount of padding surrounding the content of my PreferenceActivity activity while it is in landscape orientation?

This only occurs when running the app on Android 4.0+

Here is a good image that describes my problem:

http://i.stack.imgur.com/uC6tn.png

Answer 1

In your AndroidManifest set the activity theme like this:

<activity
android:name="com.your.package.SettingsActivity"
android:label="@string/title_activity_settings"
android:theme="@style/PrefTheme" />

Then add this to styles.xml in values

<style name="PrefTheme">  
    <item name="android:padding">2dp</item>
</style>

Slightly late on the answer but it might help someone else.

Thanks

Steve

Answer 2

Steve's answer is correct but it also sets padding for other child views. That's why I ended up putting this in onCreate() of my PreferenceActivity:

((ViewGroup)getListView().getParent()).setPadding(0, 0, 0, 0);