I am standing a bit in the dark with the android.hardware.Camera
class.
What I tried to do is taking a picture without starting preview first:
Camera mCamera = Camera.open();
mCamera.takePicture(null, null, mPictureCallback);
In the callback routine I get JPEG data of fixed length, always 52K
long. It has the right resolution but it's all black (independent of
the real object!!). Do you know if this is a bug? Do I need to start a
preview before taking a picture? Can this be done from within a
service (no activity)?
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