VideoPlay播放视频黑屏

主要代码如下:
videoPlayer = experimental::ui::VideoPlayer::create();

videoPlayer->setKeepAspectRatioEnabled(!videoPlayer->isKeepAspectRatioEnabled());
videoPlayer->setPosition(Point(vSize.width / 2, vSize.height / 2));
videoPlayer->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
videoPlayer->setContentSize(Size(vSize.width, vSize.height));
videoPlayer->setFullScreenEnabled(true);
this->addChild(videoPlayer);

if (videoPlayer)
{
    videoPlayer->setFileName(videoName);
    videoPlayer->play();
}
videoPlayer->addEventListener(CC_CALLBACK_2(VideoTest::videoEventCallback, this));

问题就是播放视频会黑屏, log中显示 VideoView 0:0
意思是宽高是零?可是home键切到后台再切回来就有可能正常播放:12:
请问有遇到过同样问题的朋友吗?求帮助

:2::2::2:这个是cocos 的问题 一直就没解决

:12: 谢了