Settings.java 文件源码

public static boolean readKeyPreviewPopupEnabled(final SharedPreferences prefs,
        final Resources res) {
    final boolean defaultKeyPreviewPopup = res.getBoolean(
            R.bool.config_default_key_preview_popup);
    if (!readFromBuildConfigIfToShowKeyPreviewPopupOption(res)) {
        return defaultKeyPreviewPopup;
    }
    return prefs.getBoolean(PREF_POPUP_ON, defaultKeyPreviewPopup);
}