swift3

问题 I can add a button to a textfield on the right hand side of the UITextField using the right view however, the text overlaps on the button. Below is the code for right view button UIView.commitAnimations() var btnColor = UIButton(type: .Custom) btnColor.addTarget(self, action: #selector(self.openEmoji), forControlEvents: .TouchUpInside) btnColor.frame = CGRect(x: CGFloat(textField.frame.size.width - 25), y: CGFloat(5), width: CGFloat(25), height: CGFloat(25)) btnColor.setBackgroundImage

问题 My app was working fine and now suddenly Xcode is giving me this error: use unresolved identifier cardWasRemoved func addNewCards() { countOfCards = countOfCards-1 if(countOfCards >= 0){ self.arrayAuthorization.remove(at: dm.objectIndexToRemove) cardWasRemoved(removeIndex: dm.objectIndexToRemove) } } And my method implementation is this: open func cardWasRemoved(removeIndex:Int) { if layout.newCardShouldAppearOnTheBottom { layout.cardDidRemoved(removeIndex) } else { layout.cardDidRemoved

问题 The variable num changes to what I want inside the observeSingleEvent, but just after it changes back to an empty value. How do i get the value of num to change?? var num = Int() FIRDatabase.database().reference().child("menus/Day1").observeSingleEvent(of: .value, with: {(snap) in print(snap) if let snapDict = snap.value as? [String:AnyObject]{ self.num = snapDict["date"] as! Int print(num) //returns the number I want } }) print(num) //Returns an empty value if num == 5 { print("number is 5")

问题 Hi I am using text field in my swift3 application - I want when user enter a number in the text field instead of english number textfield shows persian numbers - my textfield keyboard has set to just enter number so the user can't use text inside the text field with keyboard so here is my codes that doesn't work override func viewDidLoad() { super.viewDidLoad() let numberFormatter = NumberFormatter() numberFormatter.locale = Locale(identifier: "fa") numberFormatter.numberStyle =

问题 Hi I am using text field in my swift3 application - I want when user enter a number in the text field instead of english number textfield shows persian numbers - my textfield keyboard has set to just enter number so the user can't use text inside the text field with keyboard so here is my codes that doesn't work override func viewDidLoad() { super.viewDidLoad() let numberFormatter = NumberFormatter() numberFormatter.locale = Locale(identifier: "fa") numberFormatter.numberStyle =

问题 I have a simple app to test push notifications of a rest api. I would like to show the Navigation Bars in the App but it is not working. In my AppDelegate I have the following code: func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { self.registerForPushNotifications() let url = "dev" UserDefaults.standard.setValue(FFHelper.url(slug: url.slug()), forKey: "api-url") var vcString = "loginView" if

问题 I've created UIWebView programmatically. Now i want to set programmatically its orientation to (landscape or portrait). Please can anyone tell me how i can do this? Thanks import UIKit class ViewController: UIViewController, UIWebViewDelegate { override func viewDidLoad() { super.viewDidLoad() let webV:UIWebView = UIWebView(frame: CGRectMake(0, 0, UIScreen.mainScreen().bounds.width, UIScreen.mainScreen().bounds.height)) webV.loadRequest(NSURLRequest(URL: NSURL(string: "http://tune.tv/humtv

问题 I updated to Swift 3 and I get this error and I can't solve it. Type 'Any' has no subscript member I already read the answers: 39480150 - 38956785 - 39516199 But I couldn't solve my problem with the answers. This is my code: let pathperdataselezionata = Bundle.main.path(forResource: "Annuale", ofType: "plist") let dictperdataselezionata = NSDictionary(contentsOfFile: pathperdataselezionata!) as![String:AnyObject] let valoridataodierna = dictperdataselezionata[annoscelto]?[mesescritto]?!

问题 I would like to merge two arrays with specific condition and update objects that they are containing. First my struct that is in arrays: struct Item { var id:Int var name:String var value:Int } Second elements for the two arrays: let fisrt = Item(id: 1, name: "Oleg", value: 3) let second = Item(id: 2, name: "Olexander", value:5) let fisrtInSecond = Item(id: 1, name: "Bogdan", value: 6) let secondInSecond = Item(id: 2, name: "Max", value: 9) Arrays: var fisrtArray = [fisrt, second] let

问题 I am using Xcode 8 beta. I cannot drag multiple UIButtons from storyboard to connect to a single @IBAction in swift file. Bug? Thanks for your help. 回答1: By Using this workaround you can add existing action and also can connect multiple buttons to a single action. I think there is a bug in Xcode8. You can add multiple/Single button to a single action /function by changing sender to _ sender eg :- Normal Button @IBAction func huu(sender: UIButton) { } You can't add multiple buttons or single