I have a function that setups UISearchController within ViewController.
I'm trying to subscribe to events from searchBar.text property and debounce events as this is making network calls (and I want to make as less as possible).
Unfortunately the sink is only called once when setupSearchController is called. What did I wrong?
private func setupSearchController() {
let powerSearchResultViewController = PowerSearchResultViewController(coreDataManager: self.coreDataManager)
let searchController = UISearchController(searchResultsController: powerSearchResultViewController)
searchController.searchBar.autocapitalizationType = .none
let defaultAttributes = [NSAttributedString.Key.foregroundColor: UIColor(white: 1.0, alpha: 0.8)]
UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).defaultTextAttributes = defaultAttributes
searchController.searchBar.publisher(for: \.text)
.debounce(for: .seconds(1), scheduler: DispatchQueue.main)
.sink { [weak self] value in
guard let self = self, let value = value, value != "" else { return }
self.powerSearchResultViewController?.performQuery(with: value)
}
.store(in: &self.disposables)
searchController.obscuresBackgroundDuringPresentation = false
searchController.hidesNavigationBarDuringPresentation = false
searchController.searchBar.placeholder = "Search..."
searchController.delegate = self
self.navigationItem.searchController = searchController
self.navigationItem.hidesSearchBarWhenScrolling = false
self.powerSearchResultViewController = powerSearchResultViewController
self.searchController = searchController
}
Try this:
NotificationCenter.default.publisher(for:
UISearchTextField.textDidChangeNotification,
object: searchController.searchBar.searchTextField)
.map {
($0.object as! UISearchTextField).text
}
.sink { [weak self] value in
guard let self = self, let value = value, value != "" else { return }
self.powerSearchResultViewController?.performQuery(with: value)
}
.store(in: &cancellable)
Based on this answer: Somehow combine with search controller not working, any idea?
Related
I want to create a custom alert via code. This code below is working, but I Need help on some questions about passing data and retain cycles
is it right my usage of [weak self] ?
I'd like to avoid Delegate Pattern, so my plan is to pass an action as handler, this should keep Controller clean and make code more reusable. Is mine a proper solution?
In my mind, a view should not be "auto removing" but its parent should remove it, so I'd like to pass a reference to the parent controller in order to comunicate via completion, but it seems to create a retain circle (deinit never called), so I'm doing this:
self?.removeFromSuperview() //works, but not sure it is right
//self?.parentController.removeFromParent() //never calls deinit
I had a problem passing closure as parameter inside an init with cgrect as parameter. Is there a proper way other than this solution to handle that?
required init(refersTo: UIViewController, comp: #escaping () -> Void) {
myTransmittedCompletion = comp
self.parentController = refersTo
super.init(frame: CGRect.zero)
}
I call my alert this way
#IBAction func centralButton(_ sender: UIButton) {
let alert = MyAlertInCode(refersTo: self, comp: testPerCOmpletion)
self.view.addSubview(alert)
}
func testPerCOmpletion() {
print("completion")
}
my custom class
class MyAlertInCode: UIView {
let myTransmittedCompletion: () -> Void
let parentController: UIViewController
private let myTitleLabel: UILabel = {
let v = UILabel()
v.translatesAutoresizingMaskIntoConstraints = false
v.numberOfLines = 0
v.text = "very long long long logn title"
v.textAlignment = .center
v.font = UIFont.systemFont(ofSize: 28, weight: .bold)
return v
}()
private let mySubtTitleLabel: UILabel = {
let v = UILabel()
v.translatesAutoresizingMaskIntoConstraints = false
v.numberOfLines = 0
v.text = "very long long long logn title"
v.textAlignment = .center
v.font = UIFont.systemFont(ofSize: 20, weight: .bold)
return v
}()
private let myButton: UIButton = {
let v = UIButton()
v.translatesAutoresizingMaskIntoConstraints = false
v.setTitle("Button", for: .normal)
v.titleLabel?.font = UIFont.systemFont(ofSize: 16, weight: .bold)
v.setTitleColor(.systemBlue, for: .normal)
return v
}()
//white panel of the alert
private let container: UIView = {
let v = UIView()
v.translatesAutoresizingMaskIntoConstraints = false
v.backgroundColor = .white
v.layer.cornerRadius = 24
v.backgroundColor = .purple
return v
}()
private lazy var stack: UIStackView = {
let v = UIStackView(arrangedSubviews: [myTitleLabel, mySubtTitleLabel, myButton])
v.translatesAutoresizingMaskIntoConstraints = false
v.axis = .vertical
v.spacing = 10
v.distribution = .fillEqually
v.backgroundColor = .green
return v
}()
required init(refersTo: UIViewController, comp: #escaping () -> Void) {
myTransmittedCompletion = comp
self.parentController = refersTo
super.init(frame: CGRect.zero)
myButton.addTarget(self, action: #selector(methodInsideAlertClass), for: .touchUpInside)
self.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(animateOut)))
self.backgroundColor = UIColor.gray.withAlphaComponent(0.6)
#warning("UIScreen.main.bounds //deprecated in the future, at 14-ott-2022")
// self.frame = UIScreen.main.bounds //deprecated in the future, at 14-ott-2022
guard let windowBoundsFromIOS13 = UIApplication.shared.currentUIWindow()?.rootViewController?.view.bounds else {return}
self.frame = windowBoundsFromIOS13
self.addSubview(container)
NSLayoutConstraint.activate([
container.centerYAnchor.constraint(equalTo: self.centerYAnchor),
container.centerXAnchor.constraint(equalTo: self.centerXAnchor),
container.widthAnchor.constraint(equalTo: self.widthAnchor, multiplier: 0.7),
container.heightAnchor.constraint(equalTo: self.heightAnchor, multiplier: 0.5),
])
container.addSubview(stack)
NSLayoutConstraint.activate([
stack.heightAnchor.constraint(equalTo: container.heightAnchor, multiplier: 0.6),
stack.centerYAnchor.constraint(equalTo: container.centerYAnchor),
stack.leadingAnchor.constraint(equalTo: container.leadingAnchor),
stack.trailingAnchor.constraint(equalTo: container.trailingAnchor),
])
animateIn()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
deinit {
print("❌")
}
//MARK: methods
#objc private func methodInsideAlertClass() {
print("methodInsideAlertClass tapped")
}
#objc private func animateOut() {
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 1, options: .curveEaseIn) {
self.container.transform = CGAffineTransform(translationX: 0, y: -self.frame.height)
self.alpha = 0
} completion: { [weak self] isCompleted in
if isCompleted {
self?.myTransmittedCompletion()
self?.removeFromSuperview() // shouldn't be removed by parent view?
// self?.parentController.removeFromParent() //never calls deinit
}
}
}
#objc private func animateIn() {
self.container.transform = CGAffineTransform(translationX: 0, y: -self.frame.height)
self.alpha = 1
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 1, options: .curveEaseIn) {
self.container.transform = .identity
self.alpha = 1
}
}
}
since cannot use Windows:
public extension UIApplication {
func currentUIWindow() -> UIWindow? {
let connectedScenes = UIApplication.shared.connectedScenes
.filter { $0.activationState == .foregroundActive }
.compactMap { $0 as? UIWindowScene }
let window = connectedScenes.first?
.windows
.first { $0.isKeyWindow }
return window
}
}
I'm going to search for hashtags. The current code is now complete with the creation of a search bar. I am using RxSwift and Mvvm pattern. Here's the code I've been working on so far.How should I search for hashtags?
func setUI() {
self.searchBar = UISearchBar(frame: CGRect(x:300, y:0, width:300, height:20))
searchBtn.rx.tap.subscribe(onNext: { _ in
self.navigationItem.searchController = self.searchController
self.navigationItem.hidesSearchBarWhenScrolling = false
UIView.animate(withDuration: 0.25) {
self.searchBar.frame = CGRect(x:0, y:0, width:300, height:20)
}
}).disposed(by: rx.disposeBag)
}
This is ViewController.
private let disposeBag = DisposeBag()
struct input {
let loadData: Signal<Void>
}
struct output {
let result: Signal<String>
let loadApplyList: PublishRelay<friends>
}
func transform(_ input: input) -> output {
let api = SearchAPI()
let result = PublishSubject<String>()
let loadApplyList = PublishRelay<friends>()
input.loadData.asObservable().subscribe(onNext: { [weak self] in
guard let self = self else { return }
api.getFriend().subscribe(onNext: { (response, statuscode) in
switch statuscode {
case .ok:
if let response = response {
loadApplyList.accept(response)
}
default:
print("default")
}
}).disposed(by: self.disposeBag)
}).disposed(by: disposeBag)
return output(result: result.asSignal(onErrorJustReturn: ""), loadApplyList: loadApplyList)
}
}
And this is viewModel
I don't quite understand what I am doing wrong since I am very new to MVVM. It worked in MVC architecture. I've setup my VM and am able to get the first set of results and even then that's not working properly. I get 4 results instead of 10 which is what LOADLIMIT is set as. I was able to get it to work in an MVC architecture without any issues. The VM function which triggers the query is called multiple (3) times instead of just once i.e. even prior to scrolling.
Here is my VM:
enum FetchRestaurant {
case success
case error
case location
case end
}
class ListViewModel {
let restaurant: [Restaurant]?
let db = Firestore.firestore()
var restaurantArray = [Restaurant]()
var lastDocument: DocumentSnapshot?
var currentLocation: CLLocation?
typealias fetchRestaurantCallback = (_ restaurants: [Restaurant]?, _ message: String?, _ status: FetchRestaurant) -> Void
var restaurantFetched: fetchRestaurantCallback?
var fetchRestaurant: FetchRestaurant?
init(restaurant: [Restaurant]) {
self.restaurant = restaurant
}
func fetchRestaurantCallback (callback: #escaping fetchRestaurantCallback) {
self.restaurantFetched = callback
}
func fetchRestaurants(address: String) {
print("address received: \(address)")
getLocation(from: address) { location in
if let location = location {
self.currentLocation = location
self.queryGenerator(at: location)
} else {
self.restaurantFetched?(nil, nil, .location)
}
}
}
func queryGenerator(at location: CLLocation) {
var query: Query!
if restaurantArray.isEmpty {
query = db.collection("Restaurant_Data").whereField("distributionType", isLessThanOrEqualTo: 2).limit(to: Constants.Mealplan.LOADLIMIT)
} else {
print("last document:\(String(describing: lastDocument?.documentID))")
query = db.collection("Restaurant_Data").whereField("distributionType", isLessThanOrEqualTo: 2).start(afterDocument: lastDocument!).limit(to: Constants.Mealplan.LOADLIMIT)
}
batchFetch(query: query)
}
func batchFetch(query: Query) {
query.getDocuments { (querySnapshot, error) in
if let error = error {
self.restaurantFetched?(nil, error.localizedDescription, .error)
} else if querySnapshot!.isEmpty {
self.restaurantFetched?(nil, nil, .end)
} else if !querySnapshot!.isEmpty {
let queriedRestaurants = querySnapshot?.documents.compactMap { querySnapshot -> Restaurant? in
return try? querySnapshot.data(as: Restaurant.self)
}
guard let restaurants = queriedRestaurants,
let currentLocation = self.currentLocation else {
self.restaurantFetched?(nil, nil, .end)
return }
self.restaurantArray.append(contentsOf: self.applicableRestaurants(allQueriedRestaurants: restaurants, location: currentLocation))
DispatchQueue.main.asyncAfter(deadline: .now(), execute: {
self.restaurantFetched?(self.restaurantArray, nil, .success)
})
self.lastDocument = querySnapshot!.documents.last
}
}
}
func getLocation(from address: String, completionHandler: #escaping (_ location: CLLocation?) -> Void) {
let geocoder = CLGeocoder()
geocoder.geocodeAddressString(address) { (placemarks, error) in
guard let placemarks = placemarks,
let location = placemarks.first?.location else {
completionHandler(nil)
return
}
completionHandler(location)
}
}
}
And in the VC viewDidLoad:
var fetchMore = false
var reachedEnd = false
let leadingScreensForBatching: CGFloat = 5.0
var searchController = UISearchController(searchResultsController: nil)
var currentAddress : String?
var listViewModel = ListViewModel(restaurant: [Restaurant]())
override func viewDidLoad() {
super.viewDidLoad()
listViewModel.fetchRestaurantCallback { (restaurants, error, result) in
switch result {
case .success :
self.loadingShimmer.stopShimmering()
self.loadingShimmer.removeFromSuperview()
guard let fetchedRestaurants = restaurants else { return }
self.restaurantArray.append(contentsOf: fetchedRestaurants)
self.tableView.reloadData()
self.fetchMore = false
case .location :
self.showAlert(alertTitle: "No businesses nearby", message: "Try going back and changing the address")
case .error :
guard let error = error else { return }
self.showAlert(alertTitle: "Error", message: error)
case .end :
self.fetchMore = false
self.reachedEnd = true
}
}
if let currentAddress = currentAddress {
listViewModel.fetchRestaurants(address: currentAddress)
}
}
I would really appreciate links or resources for implementing MVVM in Swift for a Firestore back-end. I'm coming up short on searches here and on Google. Even tried medium.
EDIT
class ListViewController: UITableViewController {
lazy var loadingShimmer: UIImageView = {
let image = UIImage(named: "shimmer_background")
let imageview = UIImageView(image: image)
imageview.contentMode = .top
imageview.translatesAutoresizingMaskIntoConstraints = false
return imageview
}()
var restaurantArray = [Restaurant]()
var planDictionary = [String: Any]()
var fetchMore = false
var reachedEnd = false
let leadingScreensForBatching: CGFloat = 5.0
var searchController = UISearchController(searchResultsController: nil)
var currentAddress : String?
var listViewModel = ListViewModel(restaurant: [Restaurant]())
override func viewDidLoad() {
super.viewDidLoad()
setupTable()
}
override func viewWillAppear(_ animated: Bool) {
clearsSelectionOnViewWillAppear = false
}
func setupTable() {
navigationItem.backBarButtonItem = UIBarButtonItem(title: "Restaurant", style: .plain, target: nil, action: nil)
tableView.register(RestaurantCell.self, forCellReuseIdentifier: "Cell")
tableView.delegate = self
tableView.dataSource = self
let navigationBarHeight: CGFloat = self.navigationController!.navigationBar.frame.height
tableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: -navigationBarHeight, right: 0)
tableView.separatorStyle = .none
tableView.showsVerticalScrollIndicator = false
tableView.addSubview(loadingShimmer)
loadingShimmer.topAnchor.constraint(equalTo: tableView.safeAreaLayoutGuide.topAnchor).isActive = true
loadingShimmer.leadingAnchor.constraint(equalTo: tableView.leadingAnchor).isActive = true
loadingShimmer.trailingAnchor.constraint(equalTo: tableView.trailingAnchor).isActive = true
loadingShimmer.startShimmering()
initialSetup()
}
func initialSetup() {
let addressOne = planDictionary["addressOne"] as! String + ", "
let city = planDictionary["city"] as! String + ", "
let postalCode = planDictionary["postalCode"] as! String
currentAddress = addressOne + city + postalCode
setupSearch()
listViewModel.fetchRestaurantCallback { (restaurants, error, result) in
switch result {
case .success :
self.loadingShimmer.stopShimmering()
self.loadingShimmer.removeFromSuperview()
guard let fetchedRestaurants = restaurants else { return }
self.restaurantArray.append(contentsOf: fetchedRestaurants)
self.tableView.reloadData()
self.fetchMore = false
case .location :
self.showAlert(alertTitle: "No businesses nearby", message: "Try going back and changing the address")
case .error :
guard let error = error else { return }
self.showAlert(alertTitle: "Error", message: error)
case .end :
self.fetchMore = false
self.reachedEnd = true
}
}
if let currentAddress = currentAddress {
listViewModel.fetchRestaurants(address: currentAddress)
}
}
override func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let off = scrollView.contentOffset.y
let off1 = scrollView.contentSize.height
if off > off1 - scrollView.frame.height * leadingScreensForBatching {
print("\(fetchMore), \(reachedEnd)")
if !fetchMore && !reachedEnd {
if let address = self.currentAddress {
print("address sent: \(address)")
listViewModel.fetchRestaurants(address: address)
}
}
}
}
}
That you're only getting back 4 results instead of 10 is not due to a faulty query or get-document request—those are coded properly. You're either losing documents when you parse them (some are failing Restaurant initialization), Constants.Mealplan.LOADLIMIT is wrong, or there aren't more than 4 documents in the collection itself that satisfy the query.
That the query is executed 3 times instead of once is also not due to anything in this code—viewDidLoad is only called once and geocodeAddressString only returns once. You're making a fetch request elsewhere that we can't see.
In the batchFetch method, you have a guard that returns out of the function without ever calling its completion handler. This will leave the UI in a state of limbo. I'd recommend always calling the completion handler no matter why the function returns.
You never manage the document cursor. If the get-document return has less documents than the load limit, then nil the last-document cursor. This way, when you attempt to get the next page of documents, guard against a nil cursor and see if there is even more to fetch.
There's no need to pass in an empty array and have your function fill it; simply construct and return an array of results within ListViewModel itself.
We can't see how you trigger pagination. Is it through a scroll delegate when the user reaches the bottom or through a button tap, for example? If it's through a scroll delegate, then I'd disable that for now and see how many returns you get—I suspect one, instead of 3.
What is the particular reason you've ditched MVC for MVVM here? With MVC, you can get pagination up with just a few lines of code. I think MVVM is overkill for iOS applications and would advise against using it unless you have a compelling reason.
pic of database
I am trying to show a label with the user's status on their profile page. after logging in the user gets presented with a VC that has a side menu. on that side menu is a "profile" option. once choosing this they go to their profile controller. right now i simply need to search users/current uid/ "MembershipStatus" and present this result into a label called "welcomeLabel".
I am returning nul
import UIKit
import Firebase
class NonMemberProfileController: UIViewController {
// MARK: - Properties
var welcomeLabel: UILabel = {
let label = UILabel()
label.textColor = .white
label.font = UIFont.systemFont(ofSize: 28)
label.translatesAutoresizingMaskIntoConstraints = false
label.alpha = 0
return label
}()
// MARK: - Init
override func viewDidLoad()
{
super.viewDidLoad()
authenticateUserAndConfigureView()
}
func loadUserData()
{
guard let uid = Auth.auth().currentUser?.uid else {return}
//.child("MembershipStatus")
Database.database().reference().child("users").child(uid).observeSingleEvent(of: .value) {
(snapshot) in
if snapshot.hasChild("MembershipStatus"){
print("true we have bingo")
} else {
print("no bueno")
dump(snapshot)
}
guard let status = snapshot.value as? String else { return }
self.welcomeLabel.text = "Welcome, \(status)"
print("this is lkjfdskjklsfad" + status)
UIView.animate(withDuration: 0.5, animations: {
self.welcomeLabel.alpha = 1
})
}
}
func authenticateUserAndConfigureView(){
if Auth.auth().currentUser == nil {
DispatchQueue.main.async {
let navController = UINavigationController(rootViewController: LoginViewController())
navController.navigationBar.barStyle = .black
self.present(navController, animated: true, completion: nil)
}
} else {
configureNavigationBar()
loadUserData()
}
}
// MARK: - Selectors
#objc func handleDismiss() {
dismiss(animated: true, completion: nil)
}
// MARK: - Helper Functions
func configureNavigationBar() {
view.backgroundColor = UIColor.lightGray
navigationItem.title = "Profile"
navigationController?.navigationBar.barTintColor = .darkGray
navigationController?.navigationBar.barStyle = .black
navigationItem.leftBarButtonItem = UIBarButtonItem(image: #imageLiteral(resourceName: "Home_2x").withRenderingMode(.alwaysOriginal), style: .plain, target: self, action: #selector(handleDismiss))
navigationItem.rightBarButtonItem = UIBarButtonItem(image: #imageLiteral(resourceName: "baseline_settings_white_24dp").withRenderingMode(.alwaysOriginal), style: .plain, target: self, action: #selector(handleDismiss))
view.addSubview(welcomeLabel)
welcomeLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
welcomeLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
}
}
You are using Cloud Firestore for data storage but your code is reading data form RealTime Database. You have to read data like this:
let userRef = Firestore.firestore().collection("users").document(uid)
userRef.getDocument { (documentSnapshot, error) in guard
let document = documentSnapshot?.data() else {
print(error)
return
}
print(document)
}
I am in the process of creating a game (Swift) in xcode using a number of SKScene and Sprite objects. I want to create a Scene (settings scene) that captures the player's name, email, gender etc. How can I go about this? How can I capture input from user. SKScenes do not allow input fields/values in the UI?
Thanks
You can build a custom login page that is conform with your game layout without try to rebuild in UIKit the same graphic assets.
Few days ago I've written an answer about SKSceneDelegate to communicate between the scene(SpriteKit) and the viewController (UIKit), take present this answer if you want to call other viewControllers because its the same concept of this answer..
Starting with this GameViewController we can develop some useful methods to handle the login form buttons and show some alerts:
import UIKit
import SpriteKit
class GameViewController: UIViewController, TransitionDelegate {
override func viewDidLoad() {
super.viewDidLoad()
guard let view = self.view as! SKView? else { return }
view.ignoresSiblingOrder = true
view.showsFPS = true
view.showsNodeCount = true
let scene = GameScene(size:view.bounds.size)
scene.scaleMode = .fill
scene.delegate = self as TransitionDelegate
scene.anchorPoint = CGPoint.zero
view.presentScene(scene)
}
func showAlert(title:String,message:String) {
let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "Ok", style: .default) { action in
print("handle Ok action...")
})
alertController.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel, handler: nil))
self.present(alertController, animated: true)
}
func handleLoginBtn(username:String,password:String) {
print("handleLoginBtn")
print("username is: \(username) and password: \(password)")
}
func handleFacebookBtn() {
print("handleFacebookBtn")
}
func handleTwitterBtn() {
print("handleTwitterBtn")
}
}
Then we can make our scene trying to take the advantage of SpriteKit elements:
import SpriteKit
import UIKit
protocol TransitionDelegate: SKSceneDelegate {
func showAlert(title:String,message:String)
func handleLoginBtn(username:String,password:String)
func handleFacebookBtn()
func handleTwitterBtn()
}
class GameScene: SKScene,UITextFieldDelegate {
var usernameTextField:UITextField!
var passwordTextField:UITextField!
var loginBtn:SKShapeNode!
var facebookBtn:SKShapeNode!
var twitterBtn:SKShapeNode!
override func didMove(to view: SKView) {
//bg
let bg = SKSpriteNode(imageNamed: "appleWallpaper")
addChild(bg)
bg.position = CGPoint(x:self.size.width/2,y:self.size.height/2)
//title
let title = SKLabelNode.init(fontNamed: "AppleSDGothicNeo-Bold")
title.text = "xyzGame"; title.fontSize = 25
title.fontColor = .orange
addChild(title)
title.zPosition = 1
title.position = CGPoint(x:self.size.width/2,y:self.size.height-80)
//textfields
guard let view = self.view else { return }
let originX = (view.frame.size.width - view.frame.size.width/1.5)/2
usernameTextField = UITextField(frame: CGRect.init(x: originX, y: view.frame.size.height/4.5, width: view.frame.size.width/1.5, height: 30))
customize(textField: usernameTextField, placeholder: "Enter your username")
view.addSubview(usernameTextField)
usernameTextField.addTarget(self, action:#selector(GameScene.textFieldDidChange(textField:)), for: UIControlEvents.editingChanged)
passwordTextField = UITextField(frame: CGRect.init(x: originX, y: view.frame.size.height/4.5+60, width: view.frame.size.width/1.5, height: 30))
customize(textField: passwordTextField, placeholder: "Enter your password", isSecureTextEntry:true)
view.addSubview(passwordTextField)
//buttons
let myBlue = SKColor(colorLiteralRed: 59/255, green: 89/255, blue: 153/255, alpha: 1)
loginBtn = getButton(frame: CGRect(x:self.size.width/4,y:self.size.height/2,width:self.size.width/2,height:30),fillColor:myBlue,title:"Login",logo:nil,name:"loginBtn")
addChild(loginBtn)
loginBtn.zPosition = 1
let label = SKLabelNode.init(fontNamed: "AppleSDGothicNeo-Regular")
label.text = "or connect with"; label.fontSize = 15
label.fontColor = .gray
addChild(label)
label.zPosition = 1
label.position = CGPoint(x:self.size.width/2,y:self.size.height/2-30)
let logoFb = SKSpriteNode.init(imageNamed: "facebook-icon")
logoFb.setScale(0.5)
facebookBtn = getButton(frame: CGRect(x:self.size.width/4,y:self.size.height/2-80,width:self.size.width/4.5,height:30),fillColor:myBlue,logo:logoFb,name:"facebookBtn")
addChild(facebookBtn)
facebookBtn.zPosition = 1
let myCyan = SKColor(colorLiteralRed: 85/255, green: 172/255, blue: 239/255, alpha: 1)
let logoTw = SKSpriteNode.init(imageNamed: "twitter-icon")
logoTw.setScale(0.5)
twitterBtn = getButton(frame: CGRect(x:self.size.width/2,y:self.size.height/2-80,width:self.size.width/4.5,height:30),fillColor:myCyan,logo:logoTw,name:"twitterBtn")
addChild(twitterBtn)
twitterBtn.zPosition = 1
}
func customize(textField:UITextField, placeholder:String , isSecureTextEntry:Bool = false) {
let paddingView = UIView(frame:CGRect(x:0,y: 0,width: 10,height: 30))
textField.leftView = paddingView
textField.keyboardType = UIKeyboardType.emailAddress
textField.leftViewMode = UITextFieldViewMode.always
textField.attributedPlaceholder = NSAttributedString(string: placeholder,attributes: [NSForegroundColorAttributeName: UIColor.gray])
textField.autocapitalizationType = .none
textField.autocorrectionType = .no
textField.layer.borderColor = UIColor.gray.cgColor
textField.layer.borderWidth = 0.5
textField.layer.cornerRadius = 4.0
textField.textColor = .white
textField.isSecureTextEntry = isSecureTextEntry
textField.delegate = self
}
func getButton(frame:CGRect,fillColor:SKColor,title:String = "",logo:SKSpriteNode!,name:String)->SKShapeNode {
let btn = SKShapeNode(rect: frame, cornerRadius: 10)
btn.fillColor = fillColor
btn.strokeColor = fillColor
if let l = logo {
btn.addChild(l)
l.zPosition = 2
l.position = CGPoint(x:frame.origin.x+(frame.size.width/2),y:frame.origin.y+(frame.size.height/2))
l.name = name
}
if !title.isEmpty {
let label = SKLabelNode.init(fontNamed: "AppleSDGothicNeo-Regular")
label.text = title; label.fontSize = 15
label.fontColor = .white
btn.addChild(label)
label.zPosition = 3
label.position = CGPoint(x:frame.origin.x+(frame.size.width/2),y:frame.origin.y+(frame.size.height/4))
label.name = name
}
btn.name = name
return btn
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
let positionInScene = touch!.location(in: self)
let touchedNode = self.atPoint(positionInScene)
if let name = touchedNode.name {
switch name {
case "loginBtn":
self.run(SKAction.wait(forDuration: 0.1),completion:{[unowned self] in
guard let delegate = self.delegate else { return }
(delegate as! TransitionDelegate).handleLoginBtn(username:self.usernameTextField.text!,password: self.passwordTextField.text!)
})
case "facebookBtn":
self.run(SKAction.wait(forDuration: 0.1),completion:{[unowned self] in
guard let delegate = self.delegate else { return }
(delegate as! TransitionDelegate).handleFacebookBtn()
})
case "twitterBtn":
self.run(SKAction.wait(forDuration: 0.1),completion:{[unowned self] in
guard let delegate = self.delegate else { return }
(delegate as! TransitionDelegate).handleTwitterBtn()
})
default:break
}
}
}
func textFieldDidChange(textField: UITextField) {
//print("everytime you type something this is fired..")
}
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
return true
}
func textFieldDidEndEditing(_ textField: UITextField) {
if textField == usernameTextField { // validate email syntax
let emailRegEx = "[A-Z0-9a-z._%+-]+#[A-Za-z0-9.-]+\\.[A-Za-z]{2,}"
let emailTest = NSPredicate(format:"SELF MATCHES %#", emailRegEx)
let result = emailTest.evaluate(with: textField.text)
let title = "Alert title"
let message = result ? "This is a correct email" : "Wrong email syntax"
if !result {
self.run(SKAction.wait(forDuration: 0.01),completion:{[unowned self] in
guard let delegate = self.delegate else { return }
(delegate as! TransitionDelegate).showAlert(title:title,message: message)
})
}
}
}
deinit {
print("\n THE SCENE \((type(of: self))) WAS REMOVED FROM MEMORY (DEINIT) \n")
}
}
Output:
Animated output:
As you can see we can handle both framework with their delegate methods, I've tested this page with iPhone 5 and iPhone 7 plus.