Swift 3 - 线程 1：SIGABRT 信号
Swift 3 - Thread 1: Signal SIGABRT
我试图通过单击按钮更改模拟器中的视图，但不断收到错误消息：
Thread 1: signal SIGABRT
我知道这通常发生在与插座或动作断开连接时，但我已经检查过，它们似乎都已链接。
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
[=11=].applicationId = "truegramIDDB91"
[=11=].clientKey = "truegramKeyDB91"
[=11=].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.
}
}
我确信这个问题相当明显，但我只使用 Swift 3 个月，它是我的第一门编程语言。非常感谢您的帮助。
感谢您的宝贵时间。
同样的错误
大家好，我一直在尽我最大的努力自己解决这个问题，但还是搞不懂。在 @Vadian 的初始响应解决了 IBActions 的问题后，我仍然收到相同的 SIGABRT 错误。
错误信息
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.'
我认为以上内容与错误最相关，这似乎是正确的，因为在按下 'sign up'
后发生错误
我还添加了另一个注册页面，专门针对可能导致问题的企业。
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.
}
*/
}
这已经花了我几天的时间来尝试修复，所以如果有人能提供帮助，我将不胜感激。
关键信息是
[Truegram.signUpVC signupBtnClick:]: unrecognized selector sent to instance 0x7f9d0700cff0'
在Swift 3 IBAction中应该用下划线声明以省略参数标签。
@IBAction func signupBtnClick(_ sender: AnyObject)
我试图通过单击按钮更改模拟器中的视图，但不断收到错误消息：
Thread 1: signal SIGABRT
我知道这通常发生在与插座或动作断开连接时，但我已经检查过，它们似乎都已链接。
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
[=11=].applicationId = "truegramIDDB91"
[=11=].clientKey = "truegramKeyDB91"
[=11=].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.
}
}
我确信这个问题相当明显，但我只使用 Swift 3 个月，它是我的第一门编程语言。非常感谢您的帮助。
感谢您的宝贵时间。
同样的错误
大家好，我一直在尽我最大的努力自己解决这个问题，但还是搞不懂。在 @Vadian 的初始响应解决了 IBActions 的问题后，我仍然收到相同的 SIGABRT 错误。
错误信息
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.'
我认为以上内容与错误最相关，这似乎是正确的，因为在按下 'sign up'
后发生错误我还添加了另一个注册页面，专门针对可能导致问题的企业。
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.
}
*/
}
这已经花了我几天的时间来尝试修复，所以如果有人能提供帮助，我将不胜感激。
关键信息是
[Truegram.signUpVC signupBtnClick:]: unrecognized selector sent to instance 0x7f9d0700cff0'
在Swift 3 IBAction中应该用下划线声明以省略参数标签。
@IBAction func signupBtnClick(_ sender: AnyObject)