Create a Confirmation Alert in iOS with Swift

If you want to present an alert with an option to either take an action or cancel: @IBAction func clearImage(sender: UIBarButtonItem) { let alert = UIAlertController(title: “Clear Canvas”, message: “Are you sure you want to clear the canvas?”, preferredStyle: .Alert) let clearAction = UIAlertAction(title: “Clear”, style: .Destructive) { (alert: UIAlertAction!) -> Void in self.canvas.image =… Continue reading Create a Confirmation Alert in iOS with Swift

Create Navigation Bar Programmatically in Swift

In your UIPopoverPresentationControllerDelegate: func presentationController(controller: UIPresentationController, viewControllerForAdaptivePresentationStyle style: UIModalPresentationStyle) -> UIViewController? { let presentedViewController = controller.presentedViewController let navigationController = UINavigationController(rootViewController: presentedViewController) let dismissButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Done, target: self, action: “dismissPopover:”) presentedViewController.navigationItem.rightBarButtonItem = dismissButton return navigationController } func dismissPopover(sender: AnyObject) { self.dismissViewControllerAnimated(true, completion: nil) }

Get user input in Swift

Here is a helper function that handles user input.¬†You can just plop all this in a file called¬†HelperFunctions.swift. /* This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, by Yong Bakos. */ import Foundation // Wait for the user to type something in the console, and return what // they type as… Continue reading Get user input in Swift

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Display formatted date from DatePicker in iOS

If you have an NSDate object from a UIDatePicker and you want to display it formatted: let dateFormatter = NSDateFormatter() dateFormatter.dateStyle = NSDateFormatterStyle.MediumStyle myDateLabel.text = dateFormatter.stringFromDate(myDatePicker.date)