设置VideoView的背景色可隐藏视频 [英] Setting background colour for VideoView hides the video
问题描述
我在我的应用程序中使用VideoView，并且当我使用布局属性或代码本身设置背景色时，背景色被放置在视频的顶部，而我看不到它.
I am using a VideoView in my app and when I set the background colour with either the layout properties, or in the code itself, the background colour is laid over the top of my video and I cannot see it.
推荐答案
VideoView extends SurfaceView, which relies on PorterDuff.Mode.CLEAR to cut a hole in the view hierarchy so that you can see a native rendering surface underneath. If you make it fill itself back in with a solid color, you will not be able to see the video. While the video is playing, you would not be able to see the background, so I assume you want it to be a different color while there is no video. In that case, use the OnCompletionListener of the MediaPlayer to change things... perhaps switch views or extend VideoView and override draw so that it calls the super class method while playing and does something different at other times.
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