PreferenceActivity.java 文件源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    registerReceiver(mLoggedOutReceiver, new IntentFilter(Foursquared.INTENT_ACTION_LOGGED_OUT));

    addPreferencesFromResource(R.xml.preferences);
    mPrefs = PreferenceManager.getDefaultSharedPreferences(this);

    Preference advanceSettingsPreference = getPreferenceScreen().findPreference(
            Preferences.PREFERENCE_ADVANCED_SETTINGS);
    advanceSettingsPreference.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            ((Foursquared) getApplication()).requestUpdateUser();
            return false;
        }
    });
}