ios - 如何使用 PFCloud callFunction Xcode 7

Question

let params = NSMutableDictionary()
params.setObject(fullName.text!.lowercaseString, forKey: "username")

let result: AnyObject? = PFCloud.callFunction("checkUsername", withParameters: params as [NSObject : AnyObject])

这在 Xcode 6.3 中有效，但现在我更新到 Swift 2 (Xcode 7) 它不再有效。我收到错误消息:

Call can throw, but it is not marked with 'try' and the error is not handled

我该如何解决？

此外，我不想使用 PFCloud.callFunctionBackground

Answer 1

试试这个:

let params = NSMutableDictionary()
params.setObject(fullName.text!.lowercaseString, forKey: "username")

let result: AnyObject? = try! PFCloud.callFunction("checkUsername", withParameters: params as [NSObject : AnyObject])

在 Swift 2.0 中添加了 try-catch 语法，您可以阅读它 here