iOS开发笔记-75: swift4.0 保存图片至相册和复制文字到粘贴板

//复制文字
    @objc func copyAction() {
        UIPasteboard.general.string = "文案复制成功"
        JJHUDManage.successShow("文案复制成功")
    }
    //保存图片至相册
    @objc func saveAction() {
        UIImageWriteToSavedPhotosAlbum(iconImage.image, self, #selector(saveImage(image:didFinishSavingWithError:contextInfo:)), nil)
    }

    @objc private func saveImage(image: UIImage, didFinishSavingWithError error: NSError?, contextInfo: AnyObject) {
        if error != nil{
            JJHUDManage.errorShow("保存失败")
        }else{
            JJHUDManage.successShow("保存成功")
        }
    }