samsung galaxy ace surfaceview/ camera error-Collection of common programming errors

11 years ago

admin

1 minute

I am writting an app that is supposed to be compatible with the samsung galaxy ace. I have the following code:

mPreview = (SurfaceView)findViewById(R.id.preview);
mPreview.getHolder().addCallback(this);
mPreview.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mCamera.setDisplayOrientation(0);           
mCamera = Camera.open();

It crashes at

mCamera.setDisplayOrientation(0);

And gives the following error:

/AndroidRuntime(18011): Caused by: java.lang.NullPointerException

I have tried to set the value to 90, 180, 270 and 360, but nothing seems to solve this issue.