不必废话，直接干货。
获取方法 1:图片尺寸size
/// 图片尺寸size
```
func getImageSize(_ url: String?) -> CGSize {
guard let urlStr = url else {
return CGSize.zero
}
let tempUrl = URL(string: urlStr)
let imageSourceRef = CGImageSourceCreateWithURL(tempUrl! as CFURL, nil)
var width: CGFloat = 0
var height: CGFloat = 0
if let imageSRef = imageSourceRef {
let imageProperties = CGImageSourceCopyPropertiesAtIndex(imageSRef, 0, nil)
if let imageP = imageProperties {
let imageDict = imageP as Dictionary
width = imageDict[kCGImagePropertyPixelWidth] as! CGFloat
height = imageDict[kCGImagePropertyPixelHeight] as! CGFloat
}
}
return CGSize(width: width, height: height)
}
方法二：推荐用这个，因为可以异步获取，不卡顿 并处理相关 GIF和长图的判断（长图目前我这边是根据高是屏幕的2倍，可能不是最佳方案，可以根据自己需求做处理）
guard let url = URL(string:l) else {
return
}
let resource = ImageResource(downloadURL: url)
self.imgView.kf.setImage(with: resource, options: [.transition(ImageTransition.fade(1))], completionHandler: { image, error, type, url in
if let i = image{
let size = i.size
if let uri = url {
if uri.pathExtension == "gif" {
NSLog("----这是GIF")
self.gifLb.font = UIFont.systemFont(ofSize: 14, weight: .semibold)
self.gifLb.textColor = UIColor.white
self.gifLb.backgroundColor = UIColor.rgba(230, 230, 230, 0.3)
self.gifLb.textAlignment = .center
self.gifLb.text = "GIF"
}
if size.height > ( YJScreen.height * 2 ) && uri.pathExtension != "gif"{
NSLog("----这是长图")
self.gifLb.font = UIFont.systemFont(ofSize: 14, weight: .semibold)
self.gifLb.textColor = UIColor.white
self.gifLb.backgroundColor = UIColor.rgba(230, 230, 230, 0.3)
self.gifLb.textAlignment = .center
self.gifLb.text = "长图"
}
}
}
})
