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我有,当我从下载火力这里图像的问题,下载图像是我的代码:问题“意外发现无”与火力迅速
func getuser(){
FIRDatabase.database().reference().child("users").child(userID!).child("credentials").observeSingleEvent(of: .value, with: { (snapshot) in
let value = snapshot.value as? NSDictionary
let name = value?["name"] as! String
let email = value?["email"] as! String
let profilePicLink = value?["profilePicLink"] as? String ?? ""
Variables.userName = name as String
Variables.userEmail = email as String
self.username.text = Variables.userName
print(profilePicLink)
// Create a storage reference from the URL
let storageRef = self.storage.reference(forURL: profilePicLink)
// Download the data, assuming a max size of 1MB (you can change this as necessary)
storageRef.data(withMaxSize: 1 * 1000 * 1000) { (data, error) -> Void in
let pic = UIImage(data: data!)
self.img.image = pic
}
})
}
我得到这个错误:
==> this the link as printed https://firebasestorage.googleapis.com/v0/b/eswitch-72b56.appspot.com/o/usersProfilePics%2FKYe6fIQReNM8Oog4ELOdRLsC99J3?alt=media&token=6f2392bc-d35b-4ebc-b2c1-2dc34bc4b95a
fatal error: unexpectedly found nil while unwrapping an Optional value
是我得到的是该行中的错误
let storageRef = self.storage.reference(forURL: profilePicLink)
下面
是我的快照读数:
snap (credentials) {
email = "[email protected]";
mobile = 50955514;
name = Bilal;
profilePicLink = "https://firebasestorage.googleapis.com/v0/b/eswitch-72b56.appspot.com/o/usersProfilePics%2FKYe6fIQReNM8Oog4ELOdRLsC99J3?alt=media&token=6f2392bc-d35b-4ebc-b2c1-2dc34bc4b95a";
role = user;
}
感谢
这里是解决方案:
该行添加到FUNC viewDidLoad中()
storage = FIRStorage.storage()
你确定'self.storage'被初始化吗? –
为什么如果profilePicLink变量是可选的或者不是self.storage.reference,那么这很重要?也许self.storage没有定义,或者问题在其他地方。 – shubhamagg
哇我怎么错过了!谢谢!我将storage = FIRStorage.storage()添加到func viewDidLoad() –