翠鸟-无法从Web加载图像URL

Question

我有一个URL数组，我正在尝试使用KingFisher加载到ImageView中。

arrPageTitle = ["This is The App Guruz", "This is Table Tennis 3D", "This is Hide Secrets"];
    arrPagePhoto = ["https://s3.amazonaws.com/fan-polls/heyward_again.jpg", "https://s3.amazonaws.com/fan-polls/Schwarber.jpg", "https://s3.amazonaws.com/fan-polls/mike_ditka.jpg"];

我试图根据UIPageViewController的索引加载适当的图像：

pageContentViewController.imageView.kf_setImageWithURL((arrPagePhoto[index] as! String))

我收到致命错误：展开可选值时意外发现nil

任何帮助表示赞赏！

Answer 1

据我所知， kf_setImageWithURL需要NSURL，而不是String。

因此，首先将arrPagePhoto[index]转换为NSURL，然后将其传递给kf_setImageWithURL ：

let downloadURL: NSURL = NSURL(string: arrPagePhoto[index])!

pageContentViewController.imageView.kf_setImageWithURL(downloadURL)