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

getPreferenceManager() looks like it will return null if you are using
preference headers. My guess is that you are supposed to use the
PreferenceManager from your PreferenceFragments.

On Tue, Jan 31, 2012 at 9:22 AM, Dirk Vranckaert
<dirkvranckaert@gmail.com> wrote:
> 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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