[android-developers] nullpointer on getPreferenceManager() in sdk 13 and up

I'm trying to implement a fragemented preferences activity.

This is only the first part of my activity where it already fails:

public class PreferencesICSActivity extends PreferenceActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
PreferenceManager preferenceManager =
PreferencesICSActivity.this.getPreferenceManager();

preferenceManager.setSharedPreferencesName(Constants.Preferences.PREFERENCES_NAME);
}
...
}

I used to do the same in sdk version 7, there it worked. Now however
the getPreferenceManager() is null...
What am I doing wrong?

Kr,

Dirk Vranckaert

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