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當我嘗試將評論保存到Firebase時,我的應用崩潰了。此代碼是Xcode的8更新之前可以正常使用:Firebase setValue不適用於iOS 10,Swift 3
func saveNewComment(){
//get date
let date = Date()
let calendar = Calendar.current
let components = (calendar as NSCalendar).components([.day,.month,.year], from: date)
let year = components.year
let month = components.month
let day = components.day
//format month
let dateFormatter: DateFormatter = DateFormatter()
let months = dateFormatter.shortMonthSymbols
let monthSymbol = months?[month!-1]
let todaysDate = "\(day) \(monthSymbol),\(year)"
//trim comment
let comment = textView.text
let trimmedComment = comment?.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines)
//save new comment
let commentRef = ref.child("Stores").child(getRef!).child("CommentArray").childByAutoId()
commentRef.setValue([
"Comment": trimmedComment,
"Date": todaysDate
])
self.delegate?.commentSubmitted(true)//delegate
self.dismiss(animated: true, completion: nil)//dismiss view
}
顯然錯誤是,當我嘗試使用「的setValue」設置這些鍵值對。任何想法爲什麼會發生?
在此先感謝。
你做了什麼更新?你有什麼錯誤? –
什麼是getRef? – Dravidian
所以我更新了這個問題,我的錯誤,我的意思是Xcode 8更新。另外,getRef只是您記下的對節點的引用。 – Noah