Preferencefragment.findpreference Always Returns Null

I'm currently trying to make a settings menu, that will show a MultiSelectListPreference, to select multiple contacts from your contact list. At this moment, I'm receiving an NullP

Solution 1:

Ok, i found what my problem was.

MultiSelectListPreferencemslp= (MultiSelectListPreference) findPreference("contactList"); 

returns NULL because

addPreferencesFromResource(R.xml.preferences);

is not done at the start... so it didn't load my preferences in yet.

Solution 2:

You can solve this using

getFragmentManager().executePendingTransactions();

before

findPreference(section);

Solution 3:

In my case, I was trying to use findPreferences in onCreate of the enclosing PreferenceActivity. I moved it down to onCreate of the PreferenceFragment and it works fine.

Solution 4:

You can solve this by placing the all the content access functions inside the following fragment callback

@OverridepublicvoidonActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    //Access the content here.
}