get "black screen" when call unlockCanvasAndPost

by 鐒?鍒 » Thu, 02 Sep 2010 01:58:51 GMT


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 Hi!
The source code as an example :

        Canvas c=mHolder.lockCanvas(null);
        Paint paint=new Paint();
        paint.setColor(Color.DKGRAY);
        c.drawRect(new RectF(40,60,80,80), paint);
        mHolder.unlockCanvasAndPost(c);

My aim is to draw several graphics using lockCanvas and
unlockCanvasAndPost at different places controled by keydown event,but
each time when I press the key,the screen becomes black and only
drawing current graphics,when pressing the key again,the background
recoveryed.
So how to overcome this problem?

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Not directly - the videoByteArray is used for the FilePart once I have
the whole thing, like this:

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ByteArrayPartSource(
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But I get the error on the first line of that code, in the readBytes
that's called from getBytesFromFile.

I guess this is all academic if I need to rewrite it to use HttpPut,
anyway...


Thanks.

To ask a dumb question, as someone who hasn't used chunked uploading
before: how can I indicate to the server the order in which to glue
the chunks back together? (Tell me to go away and ask a Java forum if
you want.)

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