Instead of self in your handler, put (alert: UIAlertAction!). This should make your code look like this alert.addAction(UIAlertAction(title: “Okay”, style: UIAlertActionStyle.Default, handler: {(alert: UIAlertAction!) in println(“Foo”)})) this is the proper way to define handlers in Swift. As Brian pointed out below, there are also easier ways to define these handlers. Using his methods is discussed … Read more
You’re correct: if the user can tap a button in your alert, the alert will be dismissed. So you want to prevent the user from tapping the button! It’s all just a matter of disabling your UIAlertAction buttons. If an alert action is disabled, the user can’t tap it to dismiss. To combine this with … Read more
From iOS8 Apple provide new UIAlertController class which you can use instead of UIAlertView which is now deprecated, it is also stated in deprecation message: UIAlertView is deprecated. Use UIAlertController with a preferredStyle of UIAlertControllerStyleAlert instead So you should use something like this UIAlertController * alert = [UIAlertController alertControllerWithTitle:@”Title” message:@”Message” preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction* yesButton = [UIAlertAction … Read more
You can present a UIAlertController from a popover by using UIPopoverPresentationController. In Obj-C: UIViewController *self; // code assumes you’re in a view controller UIButton *button; // the button you want to show the popup sheet from UIAlertController *alertController; UIAlertAction *destroyAction; UIAlertAction *otherAction; alertController = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet]; destroyAction = [UIAlertAction actionWithTitle:@”Remove All Data” style:UIAlertActionStyleDestructive … Read more
UIAlertController extends UIViewController, which has a view property. You can add subviews to that view to your heart’s desire. The only trouble is sizing the alert controller properly. You could do something like this, but this could easily break the next time Apple adjusts the design of UIAlertController. Swift 3 let alertController = UIAlertController(title: “\n\n\n\n\n\n”, … Read more
And that’s how it’s done: let image = UIImage(named: “myImage”) var action = UIAlertAction(title: “title”, style: .default, handler: nil) action.setValue(image, forKey: “image”) alert.addAction(action) the image property is not exposed, so there’s no guarantee of this working in future releases, but works fine as of now
From the UIAlertView class: // UIAlertView is deprecated. Use UIAlertController with a preferredStyle of UIAlertControllerStyleAlert instead On iOS 8, you can do this: let alert = UIAlertController(title: “Alert”, message: “Message”, preferredStyle: UIAlertControllerStyle.Alert) alert.addAction(UIAlertAction(title: “Click”, style: UIAlertActionStyle.Default, handler: nil)) self.presentViewController(alert, animated: true, completion: nil) Now UIAlertController is a single class for creating and interacting with what … Read more
Not sure if this is against private APIs/properties but using KVC works for me on ios8 UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:@”Dont care what goes here, since we’re about to change below” message:@”” preferredStyle:UIAlertControllerStyleActionSheet]; NSMutableAttributedString *hogan = [[NSMutableAttributedString alloc] initWithString:@”Presenting the great… Hulk Hogan!”]; [hogan addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:50.0] range:NSMakeRange(24, 11)]; [alertVC setValue:hogan forKey:@”attributedTitle”]; UIAlertAction *button = … Read more
At WWDC, I stopped in at one of the labs and asked an Apple Engineer this same question: “What was the best practice for displaying a UIAlertController?” And he said they had been getting this question a lot and we joked that they should have had a session on it. He said that internally Apple … Read more