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[英]How do I display an image from Parse in a UIImageView (Swift)?
[英]How can I download an image from Firebase to Swift and then display it in a UIImageView more quickly?
我正在将图像从Firebase下载到Swift(大多数大约5 MB),然后在UIImageView中显示它们。 每个视图仅出现一次,因此无需将其缓存以供以后查看。 大多数情况下,它们需要一两秒钟才能加载。 有什么方法可以缩短时间?
我的代码:
Database.database().reference().child("movies").child(movieNumString).observeSingleEvent(of: .value, with: { (snapshot) in
if let dictionary = snapshot.value as? [String: AnyObject] {
let UrlString: String? = ((dictionary["posterPhotoURL"] as? String))
let Url = URL(string: (UrlString)!)
self.moviePosterImageView.sd_setImage(with: Url, placeholderImage: #imageLiteral(resourceName: "PImage"), options: [], completed: { (image, error, cacheType, url) in
self.moviePosterImageView.image = image
})
}
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