I am having trouble trying to change Objective - C code to Swift. This is with the Parse framework. If anyone knows how the following code should be written in Swift, it would help me a lot.
[user signUpInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (!error) {
//The registration was successful, go to the wall
[self performSegueWithIdentifier:@"SignupSuccesful" sender:self];
}
[NSObject: Anyobject]? does not have a member named subscript parse compile error will be thrown.
The code should be like that because userInfor maybe be nil.
user.signUpInBackgroundWithBlock {
(succeeded: Bool!, error: NSError!) -> Void in
if !(error != nil) {
// Hooray! Let them use the app now.
} else {
if let errorString = error.userInfo?["error"] as? NSString {
println(errorString)
}
}
}
Parse happens to have an example of this exact method in their documentation. I think they'll be OK if I excerpt it here:
user.signUpInBackgroundWithBlock {
(succeeded: Bool!, error: NSError!) -> Void in
if !error {
// Hooray! Let them use the app now.
} else {
let errorString = error.userInfo["error"] as NSString
// Show the errorString somewhere and let the user try again.
}
}
It would be something like this.
user.signUpInBackground {
(success: Bool!, error: NSError!) -> Void in
if !error {
[unowned self] in
self.performSegue("SignupSuccesful", sender:self);
}
Edit: Parse actually has Swift support. Here's a tutorial for it.
Edit2: You shouldn't refer to self inside a block. Use unowned self instead.
*.