请教一个关于动态权限和视频播放问题

Question

第一次进来获取到动态权限,拿到权限后把播放控件放到父容器播放,但是现在的情况是,第一次拿到动态权限后不能播放,需要第二次或以后进来才能播放,确定是有拿到播放url的,请问这种问题该怎么解决?想要第一次进来获取到动态权限后也能正常播放,下面是类:

public class PreviewActivity extends BaseActivity  {

    @BindView(R.id.fl_play)
    FrameLayout flPlay;
    @BindView(R.id.et_video_title)
    EditText mTitle;

    private static final String TAG = "PreviewActivity";
    private String url;
    private KProgressHUD mKProgressHUD;
    private static final int PERMISSION_CODE = 0;

    public static void open(Context context, String url) {
        Intent intent = new Intent(context, PreviewActivity.class);
        intent.putExtra("url", url);
        context.startActivity(intent);
    }

    @Override
    protected View initView(Bundle savedInstanceState) {
        View view = View.inflate(this, R.layout.activity_preview, null);
        frameLayout.addView(view);
        ButterKnife.bind(this, view);
        mTvTitle.setText(getString(R.string.preview_video));
        mTvMore.setText(getString(R.string.upload));
        return view;
    }

    @Override
    protected void initData() {
        boolean hadPermissions = isGrantExternalRW(this);//请求动态权限
        if (hadPermissions) {
            playVideo();
        }
    }

    /**
     * 获取动态权限
     */
    public static boolean isGrantExternalRW(Activity activity) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && activity.checkSelfPermission(
                Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            activity.requestPermissions(new String[]{
                    Manifest.permission.READ_EXTERNAL_STORAGE,
                    Manifest.permission.WRITE_EXTERNAL_STORAGE
            }, PERMISSION_CODE);
            return false;
        }
        return true;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == PERMISSION_CODE) {
            Toast.makeText(this, "获取权限成功1457", Toast.LENGTH_SHORT).show();
            playVideo();
        } else if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
            ToastUtil.showMessage("获取权限失败,无法预览视频");
        }
    }

    private void playVideo() {
        //TODO:可根据type区分上传的视频类型(剪辑,美颜或拍摄的视频)
        JZVideoPlayerStandardLoopVideo jzvdStd = new JZVideoPlayerStandardLoopVideo(this);
        flPlay.addView(jzvdStd);
        url = getIntent().getStringExtra("url");
        Log.d(TAG, "initData: 1011=" + url);
        jzvdStd.setUp(url, "", Jzvd.SCREEN_WINDOW_FULLSCREEN);
        jzvdStd.tinyBackImageView.setVisibility(View.GONE);
        jzvdStd.batteryTimeLayout.setVisibility(View.GONE); //隐藏电量和时间
        jzvdStd.fullscreenButton.setVisibility(View.GONE);  //全屏切换按钮
        jzvdStd.startVideo();
    }

}