SettingsFragment.java 文件源码

@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
    PreferenceKeys preferenceKeys = new PreferenceKeys(getResources());
    if(key.equals(preferenceKeys.night_mode_pref_key)){
        SharedPreferences themePreferences = getActivity().getSharedPreferences(MainActivity.THEME_PREFERENCES, Context.MODE_PRIVATE);
        SharedPreferences.Editor themeEditor = themePreferences.edit();
        //We tell our MainLayout to recreate itself because mode has changed
        themeEditor.putBoolean(MainActivity.RECREATE_ACTIVITY, true);

        CheckBoxPreference checkBoxPreference = (CheckBoxPreference)findPreference(preferenceKeys.night_mode_pref_key);
        if(checkBoxPreference.isChecked()){
            //Comment out this line if not using Google Analytics
            themeEditor.putString(MainActivity.THEME_SAVED, MainActivity.DARKTHEME);
        }
        else{
            themeEditor.putString(MainActivity.THEME_SAVED, MainActivity.LIGHTTHEME);
        }
        themeEditor.apply();

        getActivity().recreate();
    }
}