Tablet display black screen after media.playVideo finish.

I use sample code as blow:

**local posterFrame = display.newImage( “Default.png” )
posterFrame.x, posterFrame.y = display.contentWidth/2, display.contentHeight/2
local function playboy ()
posterFrame.alpha = 1
end

function posterFrame:tap( event )
msg.text = “Video Done” – message will appear after the video finishes
posterFrame.alpha = 0
media.playVideo( “lin.mp4”, true , playboy)
end

But the result is as same as the subject. Using alpha can’t change.

Another way. I write html5 using video tag to play video by native.showWebApp(). But the error message describe Can’t to play video. The sample code as blow (Google Chrome on Mac can run):

[html]

HTML5 Play video

[/html]

[import]uid: 51300 topic_id: 10312 reply_id: 310312[/import]**