我正在尝试遵循Firebase的文档,以了解如何从Firebase存储向应用程序中的用户显示图像。这是下面的文档:
// Reference to an image file in Firebase Storage
let reference = storageRef.child("images/stars.jpg")
// UIImageView in your ViewController
let imageView: UIImageView = self.imageView
// Placeholder image
let placeholderImage = UIImage(named: "placeholder.jpg")
// Load the image using SDWebImage
imageView.sd_setImage(with: reference, placeholderImage: placeholderImage)
我尝试自己做:
//get image url from deal
self.ref.child("deals").child("log").child(currentDealView).child("pictures").child(currentImageView).child("imageSelected").child("imageSelected").observeSingleEvent(of: .value) { (snapshot) in
let imageUrlString = snapshot.value as! String
let imageUrlUrl = URL(string: imageUrlString)
print(imageUrlString)
//prints "deals/log/dealNumber83/pictures/googleScreenshot/imageSelected"
// Reference to an image file in Firebase Storage
let reference = self.storageRef.child(imageUrlString)
// UIImageView in your ViewController
let viewPicImageView: UIImageView = self.viewPicImageView
// Placeholder image
let placeholderImage = UIImage(named: "placeholder.jpg")
// Load the image using SDWebImage
viewPicImageView.sd_setImage(with: reference, placeholderImage: placeholderImage)
但是在最后一行,我在“ with:reference”处出现错误,说:“无法将'StorageReference'类型的值转换为预期的参数类型'URL?'”我找不到有关如何将StorageReference
转换为URL
?谢谢。
您可以使用此:
let Ref = Storage.storage().reference(forURL: imageUrlUrl)
Ref.getData(maxSize: 1 * 1024 * 1024) { data, error in
if error != nil {
print("Error: Image could not download!")
} else {
yourImageView.image = UIImage(data: data!)
}
}
希望有帮助...