问无法在Meizu m3注释上挂载.obb文件(state = 21)

EN

public void initialize(final Context context) {
    final StorageManager storageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE);
    final File mainObbFile = getMainObbFile();

    final OnObbStateChangeListener listener = new OnObbStateChangeListener() {
        @Override
        public void onObbStateChange(String path, int state) {
            super.onObbStateChange(path, state);
            if (state == OnObbStateChangeListener.MOUNTED) {
                // work with obb file
            } else {
                throw new RuntimeException("OnObbStateChangeListener::onObbStateChange - can't mount .obb file (state = " + state + ").");
            }
        }
    };

    final String key = BuildConfig.MAIN_XAPK_KEY;
    if (storageManager.isObbMounted(mainObbFile.getAbsolutePath())) {
        // work with obb file
    } else if (!storageManager.mountObb(mainObbFile.getAbsolutePath(), key, listener)) {
        throw new RuntimeException("Can't create listener for mounting .obb file.");
    }
}