How to bind PreferenceFragment to back end?

Question

Is it possible to send requests when user changes settings on PreferenceFragment? I don't need SharedPreferences feature, I just need to sync PreferenceFragment with back end.

Answer 1

Since it has method for registering listener: registerOnSharedPreferenceChangeListener(), you can do it via implementing SharedPreferences.OnSharedPreferenceChangeListener interface and registering prefs for changes listening, something like:

@Override
public void onResume() {
    super.onResume();
    getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
}

@Override
public void onPause() {
getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
super.onPause();
}
@Override
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
// here you can implement back end pushes
// http://square.github.io/retrofit/ is a good choice
}