SettingsActivity.java 文件源码

@Override
public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  addPreferencesFromResource(R.layout.settings_activity);

  enableNotifications = 
      (CheckBoxPreference) findPreference("enable_notifications");
  enableNotifications.setOnPreferenceClickListener(
      new OnPreferenceClickListener() {
        public boolean onPreferenceClick(Preference preference) {
          toggleNotificationSettings();
          return false;
        }
      });

  notificationRingtone = 
      (Preference) findPreference("notification_ringtone");
  notificationVibration = 
      (Preference) findPreference("notification_vibration");
  toggleNotificationSettings();
}