[android-developers] Nexus 5 Camera setOneShotPreviewCallback dark images

There seems to be a problem on my Nexus 5 with KRT16M when taking a frame from the camera using android.hardware.Camera setOneShotPreviewCallback.  The camera preview goes dark and the frame saved is always dark.  After the call happens the preview stays dark.  This is a real problem since the saved frames are so dark they're pretty useless.  The code below demonstrates the problem and runs fine on every other device I've tried.  It seems like a legitimate problem.  Unless anyone has an answer I'm going to file a bug soon.

public class MainActivity extends Activity implements SurfaceTextureListener {

private Camera mCamera;

private TextureView mTextureView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

mTextureView = new TextureView(this);

mTextureView.setSurfaceTextureListener(this);

setContentView(mTextureView);

}

@Override

public void onSurfaceTextureAvailable(SurfaceTexture surface, int width,

int height) {

mCamera = Camera.open();

Camera.Size previewSize = mCamera.getParameters().getPreviewSize();

mTextureView.setLayoutParams(new FrameLayout.LayoutParams(

previewSize.width, previewSize.height, Gravity.CENTER));

try {

mCamera.setPreviewTexture(surface);

} catch (IOException t) {

}

mCamera.startPreview();

Handler handler = new Handler();

handler.postDelayed(new Runnable() {

@Override

public void run() {

mCamera.setOneShotPreviewCallback(new PreviewCallback() {

@Override

public void onPreviewFrame(byte[] data, Camera camera) {

}

});

}

}, 5000);

handler.postDelayed(new Runnable() {

@Override

public void run() {

mCamera.stopPreview();

}

}, 10000);

handler.postDelayed(new Runnable() {

@Override

public void run() {

mCamera.startPreview();

}

}, 15000);

}

@Override

public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width,

int height) {

}

@Override

public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {

mCamera.stopPreview();

mCamera.release();

return true;

}

@Override

public void onSurfaceTextureUpdated(SurfaceTexture surface) {

}

}

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