找到CameraConfigurationManager類的setDesiredCameraParameters（Camera camera）方法，將其中的程式碼註釋，然後新增如下程式碼：

Camera.Parameters parameters = camera.getParameters();
List<Camera.Size> supportedPreviewSizes = parameters.getSupportedPreviewSizes();
int position =0;
if(supportedPreviewSizes.size()>2){
position
 
=supportedPreviewSizes.size()/2+1;//supportedPreviewSizes.get();
}else {
position=supportedPreviewSizes.size()/2;
}
int width = supportedPreviewSizes.get(position).width;
int height = supportedPreviewSizes.get(position).height;
Log.d(TAG, "Setting preview size: " + cameraResolution);
camera.setDisplayOrientation
 
(90);
cameraResolution.x=width;
cameraResolution.y=height;
parameters.setPreviewSize(width,height);
setFlash(parameters);
setZoom(parameters);
camera.setParameters(parameters);