DBDB91 DBDB91 - 1 month ago 157
Swift Question

Swift 3 - Thread 1: Signal SIGABRT

I am attempting to change views in the simulator via a button click but keep getting the error:


Thread 1: signal SIGABRT


I am aware that this usually occurs when there is a disconnect with outlets or actions but I have checked and they all seem to be linked.

AppDelegate.swift

import UIKit
import Parse

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?


private func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.

// Parse configuration in Heroku
let configuration = ParseClientConfiguration {

// accessing Heroku App via ID and Keys
$0.applicationId = "truegramIDDB91"
$0.clientKey = "truegramKeyDB91"
$0.server = "http://truegram.herokuapp.com/parse"
}

// call login function
login()

Parse.initialize(with: configuration)
return true
}


func applicationWillResignActive(_ application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

func applicationDidEnterBackground(_ application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

func applicationWillEnterForeground(_ application: UIApplication) {
// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

func applicationDidBecomeActive(_ application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

func applicationWillTerminate(_ application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

func login() {

// remember user's login
let username : String? = UserDefaults.standard.string(forKey: "username")

// if logged in
if username != nil {

let storyboard : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let myTabBar = storyboard.instantiateViewController(withIdentifier: "tabBar") as! UITabBarController
window?.rootViewController = myTabBar

}


}

}


SignInVC.swift

import UIKit
import Parse

class signInVC: UIViewController {

// textfields
@IBOutlet weak var usernameTxt: UITextField!
@IBOutlet weak var passwordTxt: UITextField!
@IBOutlet weak var label: UILabel!

// sign in button view
@IBOutlet weak var signinBtnBlock: UIView!

// buttons
@IBOutlet weak var signInBtn: UIButton!
@IBOutlet weak var signUpBtn: UIButton!
@IBOutlet weak var forgotPasswordBtn: UIButton!

// default function
override func viewDidLoad() {
super.viewDidLoad()

// font of label (Clubbr)
label.font = UIFont(name: "gillsans-light", size: 22)

}



// clicked sign in button
@IBAction func signInBtnClick(sender: AnyObject) {
print("sign in pressed")

// hide keyboard
self.view.endEditing(true)


// if text fields are empty
if usernameTxt.text!.isEmpty || passwordTxt.text!.isEmpty {

// show alert message
let alert = UIAlertController(title: "Please", message: "fill in fields", preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)
}


// login functions
PFUser.logInWithUsername(inBackground: usernameTxt.text!, password: passwordTxt.text!) { (user: PFUser?, error: Error?) -> Void in
if error == nil {

// remember user or save in app memory (did the user log in or not)
UserDefaults.standard.set(user!.username, forKey: "username")
UserDefaults.standard.synchronize()

// Call login function from AppDelegate.swift class
let appDelegate : AppDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.login()

} else {

// show alert message
let alert = UIAlertController(title: "Error", message: error!.localizedDescription, preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}

}



}

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}


}


SignUpVc.swift

import UIKit
import Parse

class signUpVC: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
// profile image
@IBOutlet weak var avaImg: UIImageView!

// textfields
@IBOutlet weak var firstnameTxt: UITextField!
@IBOutlet weak var lastnameTxt: UITextField!
@IBOutlet weak var emailTxt: UITextField!
@IBOutlet weak var passwordTxt: UITextField!
@IBOutlet weak var confirmTxt: UITextField!

// buttons
@IBOutlet weak var loginBtn: UIButton!
@IBOutlet weak var signupBtn: UIButton!
@IBOutlet weak var businessSignupBtn: UIButton!

// scroll view
@IBOutlet weak var scrollView: UIScrollView!


// resets scroll view to default size
var scrollViewHeight : CGFloat = 0

// keyboard frame size
var keyboard = CGRect()


// default func
override func viewDidLoad() {
super.viewDidLoad()



// check notifications if keyboard is shown or not
NotificationCenter.default.addObserver(self, selector: Selector(("showKeyboard:")), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self, selector: Selector(("hideKeyboard:")), name: NSNotification.Name.UIKeyboardWillHide, object: nil)

// declare hide keyboard tap
let hideTap = UITapGestureRecognizer(target: self, action: Selector(("hideKeyboardTap:")))
hideTap.numberOfTapsRequired = 1
self.view.isUserInteractionEnabled = true
self.view.addGestureRecognizer(hideTap)

// profile image circle shape and custom border colour
avaImg.layer.borderWidth = 2
avaImg.layer.borderColor = UIColor.init(red: 90/255, green: 187/255, blue: 181/255, alpha: 1).cgColor
avaImg.layer.cornerRadius = avaImg.frame.height/2
avaImg.clipsToBounds = true

// declare select image tap
let avaTap = UITapGestureRecognizer(target: self, action: Selector(("loadImg:")))
avaTap.numberOfTapsRequired = 1
avaImg.isUserInteractionEnabled = true
avaImg.addGestureRecognizer(avaTap)
}

// call picker to select image
func loadImg(recognizer: UITapGestureRecognizer) {

let picker = UIImagePickerController()
picker.delegate = self
picker.sourceType = .photoLibrary
picker.allowsEditing = true
present(picker, animated: true, completion: nil)
}

// connect selected image to our image view
private func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
avaImg.image = info[UIImagePickerControllerEditedImage] as? UIImage
self.dismiss(animated: true, completion: nil)
}


// hide keyboard if tapped
func hideKeyboardTap(recognizer: UITapGestureRecognizer) {
self.view.endEditing(true)
}

// show keyboard
func showKeyboard(notification: NSNotification) {

// define keyboard sizes
keyboard = ((notification.userInfo?[UIKeyboardFrameEndUserInfoKey]! as AnyObject).cgRectValue)!

//move up UI
UIView.animate(withDuration: 0.4) { () -> Void in
self.scrollView.frame.size.height = self.scrollViewHeight - self.keyboard.height

}

}

// hide keyboard
func hideKeyboard(notification: NSNotification) {

//move down UI
UIView.animate(withDuration: 0.4) { () -> Void in
self.scrollView.frame.size.height = self.view.frame.height

}

}


// clicked sign up
@IBAction func signupBtnClick(sender: AnyObject) {
print("sign up pressed")

// dismiss keyboard
self.view.endEditing(true)


// if fields are empty
if (emailTxt.text!.isEmpty || passwordTxt.text!.isEmpty || confirmTxt.text!.isEmpty || firstnameTxt.text!.isEmpty || lastnameTxt.text!.isEmpty) {

// alert pop up message
let alert = UIAlertController(title: "Please", message: "fill all fields", preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}

// if incorrect password
if passwordTxt.text != confirmTxt.text {

// alert pop up message
let alert = UIAlertController(title: "Attention", message: "incorrect password", preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}

// send data to related columns in server
let user = PFUser()
user.username = emailTxt.text?.lowercased()
user.email = emailTxt.text?.lowercased()
user.password = passwordTxt.text
user["firstname"] = firstnameTxt.text?.lowercased()
user["lastname"] = lastnameTxt.text?.lowercased()

// convert our image for sending to server
let avaData = UIImageJPEGRepresentation(avaImg.image!, 0.5)
let avaFile = PFFile(name: "ava.jpg", data: avaData!)
user["ava"] = avaFile

// save data in server
user.signUpInBackground { (success: Bool, error: Error?) -> Void in
if success {
print("registered")

// remember logged user
UserDefaults.standard.set(user.username, forKey: "username")
UserDefaults.standard.synchronize()

// calls login func from AppDelegate.swift class
let appDelegate : AppDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.login()

} else {

// show alert message
let alert = UIAlertController(title: "Error", message: error!.localizedDescription, preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}


}

}

// clicked return to log in
@IBAction func loginBtnClick(sender: AnyObject) {
self.dismiss(animated: true, completion: nil)

// dismiss keyboard
self.view.endEditing(true)

}


override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}



}


ResetPasswordVC.swift

import UIKit
import Parse

class resetPasswordVC: UIViewController {

// text field
@IBOutlet weak var emailTxt: UITextField!

// buttons
@IBOutlet weak var cancelBtn: UIButton!
@IBOutlet weak var resetBtn: UIButton!

// clicked cancel button
@IBAction func cancelBtnClick(sender: AnyObject) {
self.dismiss(animated: true, completion: nil)

// dismiss keyboard
self.view.endEditing(true)
}

// clicked reset button
@IBAction func resetBtnClick(sender: AnyObject) {

// hide keyboard
self.view.endEditing(true)

// if email text field is empty
if emailTxt.text!.isEmpty {

// show alert message
let alert = UIAlertController(title: "Email field", message: "is empty", preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)
}

// request for resetting password
PFUser.requestPasswordResetForEmail(inBackground: emailTxt.text!) { (success: Bool, error: Error?) -> Void in
if success {

// show alert message
let alert = UIAlertController(title: "Reset Password Email", message: "has been sent to the email address associated with your account", preferredStyle: UIAlertControllerStyle.alert)

// of ok is pressed call self.dismiss.. function
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: { (UIAlertAction) -> Void in
self.dismiss(animated: true, completion: nil)
})

alert.addAction(ok)
self.present(alert, animated: true, completion: nil)
} else {
print(error?.localizedDescription)

}

}

}

// default func
override func viewDidLoad() {
super.viewDidLoad()

// tap to hide keyboard
let hideTap = UITapGestureRecognizer(target: self, action: Selector(("hideKeyboard:")))
hideTap.numberOfTapsRequired = 1
self.view.isUserInteractionEnabled = true
self.view.addGestureRecognizer(hideTap)

}

// hide keyboard function
func hideKeyboard(recognizer: UITapGestureRecognizer) {
self.view.endEditing(true)

}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}



}


I am sure the issue is something fairly obvious but I have only been working with Swift for 3 months and it is my first programming language. I would really appreciate the help.

Thanks for your time.

SAME ERROR

Hey guys, I've been trying my best to sort this myself but cannot get to grips with it. After the initial response from @Vadian solved the issue of the IBActions, I have still been receiving the same SIGABRT error.

Error Info

2016-10-06 17:18:33.709206 Truegram[13130:1026640] [MobileAssetError:29] Unable to copy asset information from https://mesu.apple.com/assets/ for asset type com.apple.MobileAsset.TextInput.SpellChecker
sign up pressed
2016-10-06 17:18:53.120 Truegram[13130:1026284] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'The class PFUser must be registered with registerSubclass before using Parse.'


I think the above is most relevant to the error and this seems to be vindicated as the error occurs after pressing 'sign up'

I have also added another sign up page, specific to businesses that might be causing the issue.

BusinessSignUp.swift

import UIKit
import Parse

class BusinessSignUpVC: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

// profile image
@IBOutlet weak var BusinessAvaImg: UIImageView!

// textfields
@IBOutlet weak var confirmTxt: UITextField!
@IBOutlet weak var passwordTxt: UITextField!
@IBOutlet weak var AddressTxt: UITextView!
@IBOutlet weak var contactNumTxt: UITextField!
@IBOutlet weak var emailTxt: UITextField!
@IBOutlet weak var businessNameTxt: UITextField!

// buttons
@IBOutlet weak var loginBtn: UIButton!
@IBOutlet weak var signupBtn: UIButton!

@IBAction func loginBtnClick(_ sender: AnyObject) {
}


// keyboard frame size
var keyboard = CGRect()


override func viewDidLoad() {
super.viewDidLoad()

// check notifications if keyboard is shown or not
NotificationCenter.default.addObserver(self, selector: #selector(BusinessSignUpVC.showKeyboard(_:)), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self, selector: Selector(("hideKeyboard:")), name: NSNotification.Name.UIKeyboardWillHide, object: nil)

// declare hide keyboard tap
let hideTap = UITapGestureRecognizer(target: self, action: #selector(BusinessSignUpVC.hideKeyboardTap(_:)))
hideTap.numberOfTapsRequired = 1
self.view.isUserInteractionEnabled = true
self.view.addGestureRecognizer(hideTap)

// profile image circle shape and custom border colour
BusinessAvaImg.layer.borderWidth = 2
BusinessAvaImg.layer.borderColor = UIColor.init(red: 90/255, green: 187/255, blue: 181/255, alpha: 1).cgColor
BusinessAvaImg.layer.cornerRadius = BusinessAvaImg.frame.height/2
BusinessAvaImg.clipsToBounds = true

// declare select image tap
let avaTap = UITapGestureRecognizer(target: self, action: #selector(BusinessSignUpVC.loadImg(_:)))
avaTap.numberOfTapsRequired = 1
BusinessAvaImg.isUserInteractionEnabled = true
BusinessAvaImg.addGestureRecognizer(avaTap)
}

// call picker to select image
func loadImg(_ recognizer: UITapGestureRecognizer) {

let picker = UIImagePickerController()
picker.delegate = self
picker.sourceType = .photoLibrary
picker.allowsEditing = true
present(picker, animated: true, completion: nil)
}

// connect selected image to our image view
private func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
BusinessAvaImg.image = info[UIImagePickerControllerEditedImage] as? UIImage
self.dismiss(animated: true, completion: nil)
}


// hide keyboard if tapped
func hideKeyboardTap(_ recognizer: UITapGestureRecognizer) {
self.view.endEditing(true)
}

// show keyboard
func showKeyboard(_ notification: NSNotification) {

// define keyboard sizes
keyboard = ((notification.userInfo?[UIKeyboardFrameEndUserInfoKey]! as AnyObject).cgRectValue)!
// Do any additional setup after loading the view.
}

// clicked sign up
@IBAction func signupBtnClick(_ sender: AnyObject) {
print("sign up pressed")

// dismiss keyboard
self.view.endEditing(true)


// if fields are empty
if (emailTxt.text!.isEmpty || passwordTxt.text!.isEmpty || confirmTxt.text!.isEmpty || businessNameTxt.text!.isEmpty || AddressTxt.text!.isEmpty || contactNumTxt.text!.isEmpty) {

// alert pop up message
let alert = UIAlertController(title: "Please", message: "fill all fields", preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}

// if incorrect password
if passwordTxt.text != confirmTxt.text {

// alert pop up message
let alert = UIAlertController(title: "Attention", message: "incorrect password", preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}

// send data to related columns in server
let businessUser = PFUser()
businessUser.username = businessNameTxt.text?.lowercased()
businessUser.email = emailTxt.text?.lowercased()
businessUser.password = passwordTxt.text
businessUser["BusinessUser"] = businessNameTxt.text?.lowercased()
businessUser["Address"] = AddressTxt.text?.lowercased()
businessUser["ContactNumber"] = contactNumTxt.text?.lowercased()

// convert our image for sending to server
let avaData = UIImageJPEGRepresentation(BusinessAvaImg.image!, 0.5)
let avaFile = PFFile(name: "ava.jpg", data: avaData!)
businessUser["ava"] = avaFile

// save data in server
businessUser.signUpInBackground { (success: Bool, error: Error?) -> Void in
if success {
print("registered")

// remember logged user
UserDefaults.standard.set(businessUser.username, forKey: "username")
UserDefaults.standard.synchronize()

// calls login func from AppDelegate.swift class
let appDelegate : AppDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.login()

} else {

// show alert message
let alert = UIAlertController(title: "Error", message: error!.localizedDescription, preferredStyle: UIAlertControllerStyle.alert)
let ok = UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil)
alert.addAction(ok)
self.present(alert, animated: true, completion: nil)

}


}

}

// clicked return to log in
@IBAction func businessLoginBtnClick(_ sender: AnyObject) {
self.dismiss(animated: true, completion: nil)

// dismiss keyboard
self.view.endEditing(true)

}

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}


/*
// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/

}


This has now taken me a couple of days attempting to fix, so I would be very appreciative if anyone could help.

Answer

The crucial information is

[Truegram.signUpVC signupBtnClick:]: unrecognized selector sent to instance 0x7f9d0700cff0'

In Swift 3 IBActions are supposed to be declared with an underscore to omit the parameter label.

@IBAction func signupBtnClick(_ sender: AnyObject) 
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