我该如何去除相机视图底部的黑色条,并使照片预览占满整个屏幕?
CGAffineTransform cameraTransform = CGAffineTransformMakeScale(1.0, 1.930);
CGAffineTransform cameraTransform = CGAffineTransformMakeScale(1.0, 1.260);
如果您的设备正在运行iOS7(4英寸)
CGAffineTransform cameraTransform = CGAffineTransformMakeScale(1.0, 1.670);
self.picker.cameraViewTransform = cameraTransform;