http://emo-pass.com/2017/11/26/builing-things-with-java-reflection-and-annotation-processing/

CleanSettingsFragment.java

public class SettingsFragment extends PreferenceFragment {

  @BindPref(R.string.pref_name_key)
  EditTextPreference namePreference;

  @Override public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    namePreference.setSummary("Uwoah! A summary.");
  }

  @OnPrefClick(R.string.pref_name_key)
  void onNameClick(Preference preference) {
    // Do anything you want
  }

  @OnPrefChange(R.string.pref_name_key)
  void onNameChange(Preference preference, Object newValue) {
    // Again, do anything you want
  }
}