Question

我收到错误消息

无法转换类型的值（NSURLRequest！，NSHTTPURLResponse！，UIImage！） - ＆gt;虚空＆＃39;预期参数类型＆＃39;（（NSURLRequest，NSHTTPURLResponse？，UIImage） - ＆gt; Void）？

这是代码

import UIKit

class RoutineCell: UITableViewCell {

@IBOutlet weak var bannerImageView: UIImageView!
@IBOutlet weak var routineTitleLabel: UILabel!
@IBOutlet weak var shortDescriptionLabel: UILabel!

var routine: Routine! {
    didSet {
        routineTitleLabel.text = routine.title
        shortDescriptionLabel.text = routine.shortDescription
        bannerImageView.setImageWithURL(NSURL(string: routine.bannerImageUrl)!)
        bannerImageView.setImageWithURLRequest(NSURLRequest(URL: NSURL(string: routine.bannerImageUrl)!), placeholderImage: nil, success: { (request: NSURLRequest!, response: NSHTTPURLResponse!, image: UIImage!) -> Void in
            self.bannerImageView.alpha = 0.0
            self.bannerImageView.image = image
            UIView.animateWithDuration(0.2, animations: { () -> Void in
                self.bannerImageView.alpha = 1.0
            })
        }, failure: nil)
    }
}

override func awakeFromNib() {
    self.selectionStyle = UITableViewCellSelectionStyle.None
    super.awakeFromNib()
}

override func prepareForReuse() {
    bannerImageView.image = nil
}

override func setSelected(selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)

    // Configure the view for the selected state
}

}

谢谢

Answer 1

您对bannerImageView.setImageWithURLRequest回调的声明错误

(request: NSURLRequest!, response: NSHTTPURLResponse!, image: UIImage!)

您需要使用以下

(request: NSURLRequest, response: NSHTTPURLResponse?, image: UIImage)

需要帮助，无法转换类型值＃（39）（NSURLRequest！，NSHTTPURLResponse！，UIImage！）

1 个答案: