have a FrameLayout containing two SurfaceViews. One of them will show
the camera preview, and the other is a custom surface view I use for
drawing. Problem is the surface view does not show up. If I comment
out the line where the camera starts preview, it does though, on the
black background. This indicates me that the Surface view is
positioned well, but I suspect that when the camera preview draws,
something goes wrong.
The camera view:
public CameraView(Context context, AttributeSet a) {
super(context, a);
mHolder = getHolder();
mHolder.addCallback(this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
The custom view:
public InclinaisonGauge(Context context, AttributeSet attrs) {
super(context, attrs);
getHolder().addCallback(this);
getHolder().setFormat(PixelFormat.TRANSLUCENT);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
run = true;
updateThread = new Thread()
{
public void run()
{
Canvas c = null;
final SurfaceHolder inclHolder = getHolder();
while (run) {
try {
c = inclHolder.lockCanvas();
if(c!=null)
{
synchronized (inclHolder) {
onDraw(c);
}
}
} finally {
// do this in a finally so that if an exception is
thrown
// during the above, we don't leave the Surface in an
// inconsistent state
if (c != null) {
inclHolder.unlockCanvasAndPost(c);
}
}
}
}
};
And I use this very simple draw method on the custom view to make sure
it is not a framerate issue
public void doDraw(final Canvas canvas, final boolean bigSize, float
daDirection)
{
canvas.drawARGB(255, 255, 255, 255);
}
Has anyone experienced this?
Here is a simple eclipse project demonstrating the issue
http://dl.free.fr/f4rt18a1o
Start it and you will only see the camera. In CameraView, comment out
the line where it starts preview and you will see the SurfaceView
being drawn.
Thanks
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