- 获取自适应图片大小
private func getImageSize(imageView: UIImageView?) -> CGSize {
let screenWidth = UIScreen.main.bounds.width
if let image = imageView?.image {
let imageSize = image.size
if imageSize.width <= screenWidth {
return imageSize
} else {
return CGSize(width: screenWidth, height: screenWidth * imageSize.height / imageSize.width)
}
}
return CGSize.zero
}
