I have some questions regarding code below for camera preview
applicaiton. Can someone please help me out?
1. How does surfaceCreated get called? From SDK, it is called
immediately after the surface is first created, but I still don't
know
who creates this surface?
2. Why do we need to set it as SURFACE_TYPE_PUSH_BUFFERS?
3. How does this surface relate to the preview buffers? Are the
preview buffers allocated by the Camera Service during startPreview?
private class CameraSurfaceView extends SurfaceView implements
SurfaceHolder.Callback {
private SurfaceHolder mHolder;
private Camera camera = null;
public CameraSurfaceView(Context context) {
super(context);
mHolder = getHolder();
mHolder.addCallback(this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
try {
camera.setPreviewDisplay(mHolder);
} catch (Exception e) {
Log.e("Camera", "Failed to set camera preview
display", e);
}
}
}
Thank you very much for your help.
an
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