Ios Swift 3 Firebase数据检索错误：无法转换类型为'__NSCFString'；（0x1a8e00d50）至'；NSDictionary'；（0x1a8e01c78）

嘿，我是Firebase的新手，从数据库获取数据时遇到问题，我在这一行遇到错误：

      let snapshotValue = snapshot.value as! [String: AnyObject]

你能帮我解决这个问题吗

错误显示：

Could not cast value of type '__NSCFString' (0x1a8e00d50) to 'NSDictionary' (0x1a8e01c78).

  init(snapshot: FIRDataSnapshot) {
key = snapshot.key


let snapshotValue = snapshot.value as! [String: AnyObject]
name = snapshotValue["name"] as! String
addedByUser = snapshotValue["addedByUser"] as! String
startTime = snapshotValue["startTime"] as! Double
endPickerTime = snapshotValue["endPickerTime"] as! Double
longtitude = snapshotValue["longtitude"] as! Double
latitude = snapshotValue["latitude"] as! Double

eventImageStringUrl = snapshotValue["eventImageStringUrl"] as! String
eventId = snapshotValue["eventId"] as! String
eventDescription = snapshotValue["eventDescription"] as! String
completed = snapshotValue["completed"] as! Bool
ref = snapshot.ref
 }

事件控制器：

Could not cast value of type '__NSCFString' (0x1a8e00d50) to 'NSDictionary' (0x1a8e01c78).

  init(snapshot: FIRDataSnapshot) {
key = snapshot.key


let snapshotValue = snapshot.value as! [String: AnyObject]
name = snapshotValue["name"] as! String
addedByUser = snapshotValue["addedByUser"] as! String
startTime = snapshotValue["startTime"] as! Double
endPickerTime = snapshotValue["endPickerTime"] as! Double
longtitude = snapshotValue["longtitude"] as! Double
latitude = snapshotValue["latitude"] as! Double

eventImageStringUrl = snapshotValue["eventImageStringUrl"] as! String
eventId = snapshotValue["eventId"] as! String
eventDescription = snapshotValue["eventDescription"] as! String
completed = snapshotValue["completed"] as! Bool
ref = snapshot.ref
 }

从数据库获取数据：

override func viewDidLoad() {
    super.viewDidLoad()
  databaseHandle = databaseRef.child("events").observe(.childAdded, with: { (snapshot) in

    var newItems: [Event] = []
    for item in snapshot.children {

     let event = Event(snapshot: item as! FIRDataSnapshot)
     newItems.append(event)
    }


  })

数据库方案：

Could not cast value of type '__NSCFString' (0x1a8e00d50) to 'NSDictionary' (0x1a8e01c78).

  init(snapshot: FIRDataSnapshot) {
key = snapshot.key


let snapshotValue = snapshot.value as! [String: AnyObject]
name = snapshotValue["name"] as! String
addedByUser = snapshotValue["addedByUser"] as! String
startTime = snapshotValue["startTime"] as! Double
endPickerTime = snapshotValue["endPickerTime"] as! Double
longtitude = snapshotValue["longtitude"] as! Double
latitude = snapshotValue["latitude"] as! Double

eventImageStringUrl = snapshotValue["eventImageStringUrl"] as! String
eventId = snapshotValue["eventId"] as! String
eventDescription = snapshotValue["eventDescription"] as! String
completed = snapshotValue["completed"] as! Bool
ref = snapshot.ref
 }

---

更改

.child将
添加到
中的
.value
。观察
 编译器说，
snapshot.value
是一个字符串。请尝试更改.childAdded to.value in.observe。它有帮助吗？似乎
FIRDataSnapshot值
是
String
@VladPulichev谢谢，你解决了我的问题