Swift开发 截取指定view并保存为图片操作

funcScreenshot() {//截取指定UIView

UIGraphicsBeginImageContextWithOptions(self.view.frame.size,false,UIScreen.main.scale)

self.view.layer.render(in:UIGraphicsGetCurrentContext()!)

letimage =UIGraphicsGetImageFromCurrentImageContext()

UIGraphicsEndImageContext()

UIImageWriteToSavedPhotosAlbum(image!,self,nil,nil)

}