I have a very simple activity just to show the preference fragment:
public class PreferencesActivity extends Activity {
Fragment frag = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FragmentTransaction ft = getFragmentManager().beginTransaction();
if (frag == null) {
// If not, instantiate and add it to the activity
frag = new PrefsFragment();
ft.add(android.R.id.content, frag, frag.getClass().getName());
} else {
// If it exists, simply attach it in order to show it
ft.attach(frag);
}
ft.commit();
}
private static class PrefsFragment extends PreferenceFragment {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.
xml.preferences);
}
}
}
and preferences.
xml with persistent to true:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:enabled="true"
android:persistent="true"
android:title="@string/settings" >
<EditTextPreference
android:dialogTitle="@string/dialog_ip"
android:negativeButtonText="@android:string/cancel"
android:persistent="true"
android:positiveButtonText="@android:string/ok"
android:title="@string/ip" />
</PreferenceScreen>
if I open the EditTextPreference, write something, close the dialog and open it again. The value is still there. But that's it... if I click the Back button, and enter the again on the preferences screen, I already lost what was written. If you exit the application also doesn't save.
Am I missing something here?
Running on:
Android 4.0.3
Asus TF300
