SingleWebsitePreferences.java 文件源码

private void clearStoredData() {
    mSite.clearAllStoredData(
            new Website.StoredDataClearedCallback() {
                @Override
                public void onStoredDataCleared() {
                    PreferenceScreen preferenceScreen = getPreferenceScreen();
                    preferenceScreen.removePreference(
                            preferenceScreen.findPreference(PREF_CLEAR_DATA));
                    if (!hasUsagePreferences()) {
                        preferenceScreen.removePreference(
                                preferenceScreen.findPreference(PREF_USAGE));
                    }
                    popBackIfNoSettings();
                }
            });
}