iOS 归档UIImageView后，再解档，imageview的图片出现自动旋转

今天遇到了问题，归档后的UIImageView，再解档后 出现图片旋转的状况！

原因是拍照后的图片放在UIImageView上，根据拍照设备的方向，imageOrientation 也会发生改变！所以UIImageView解档的时候需要自己旋转过来。

if (self.arcRemarkImageView.image.imageOrientation
== UIImageOrientationDown)
{
self.arcRemarkImageView.image = [UIImageimageWithCGImage:self.arcRemarkImageView.image.CGImagescale:1.0orientation:UIImageOrientationDown];
}
elseif(self.arcRemarkImageView.image.imageOrientation
== UIImageOrientationRight)
{
self.arcRemarkImageView.image = [UIImageimageWithCGImage:self.arcRemarkImageView.image.CGImagescale:1.0orientation:UIImageOrientationRight];
}elseif (self.arcRemarkImageView.image.imageOrientation
== UIImageOrientationLeft)
{
self.arcRemarkImageView.image = [UIImageimageWithCGImage:self.arcRemarkImageView.image.CGImagescale:1.0orientation:UIImageOrientationLeft];
}