I just had this problem, and I got it to work by doing this: I opened my Target > Build Settings > Search Paths > Framework Search Paths. I added two values: $(PROJECT_DIR) and $(inherited) I don’t know why these were empty in the first place, but there you have it.
The use of NS_DESIGNATED_INITIALIZER is nicely explained in http://useyourloaf.com/blog/2014/08/19/xcode-6-objective-c-modernization.html: The designated initializer guarantees the object is fully initialised by sending an initialization message to the superclass. The implementation detail becomes important to a user of the class when they subclass it. The rules for designated initializers in detail: A designated initializer must call (via super) … Read more
This is solution which I have used in my app: var image: UIImage = UIImage(named: “imageName”) imageView.layer.borderWidth = 1.0 imageView.layer.masksToBounds = false imageView.layer.borderColor = UIColor.whiteColor().CGColor imageView.layer.cornerRadius = image.frame.size.width/2 imageView.clipsToBounds = true Swift 4.0 let image = UIImage(named: “imageName”) imageView.layer.borderWidth = 1.0 imageView.layer.masksToBounds = false imageView.layer.borderColor = UIColor.white.cgColor imageView.layer.cornerRadius = image.frame.size.width / 2 imageView.clipsToBounds = true
“Reset Content and Settings” from iOS Simutalor menu options and launching simulator after Quitting solved my issue.
You can run two instances of the iOS simulator from the command line. They won’t be attached to Xcode debugging—indeed, it seems only to work if you do it without Xcode running at all. First, you need to run the app in the simulator from Xcode, in order to get it installed in the simulator. … Read more
The error could be improved, but the problem with your first version is you have a member variable, delegate, that does not have a default value. All variables in Swift must always have a value. That means that you have to set it up in an initializer which you do not have or you could … Read more
So this has been quite painful for something that should be trivial. Here is what I did: Use xcassets I decided to use .xcassets versus the .xib for launch. I deleted the .xib. If you have images.xcassets already in your project then great, otherwise you can add one from File>New>file: Create a Launch Image Set … Read more
You need to first change the constraint and then animate the update. This should be in the superview. self.nameInputConstraint.constant = 8 Swift 2 UIView.animateWithDuration(0.5) { self.view.layoutIfNeeded() } Swift 3, 4, 5 UIView.animate(withDuration: 0.5) { self.view.layoutIfNeeded() }
The simplest way is to put your own global function in front of Swift’s println: func println(object: Any) { Swift.println(object) } When it’s time to stop logging, just comment out the body of that function: func println(object: Any) { // Swift.println(object) } Or you can make it automatic by using a conditional: func println(object: Any) … Read more
If your UI is laid out in a Storyboard, you can set an NSTimer in viewDidLoad of your first ViewController and then call performSegueWIthIdentifier when the timer fires: class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let timer = Timer.scheduledTimer(interval: 8.0, … Read more