UIAlertController for large amount of text with scrolling functionality? - ios

Question

UIAlertController show small strings. when the size of string become larger. then some text from this alert is missing. is there any scrolling functionality available so that to scroll to the remaining text?
var alert = UIAlertController(title: "title here", message: "about 30 line text here", preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
how to make an alert that show me text larger then 30 lines. i use swift.

Answer 1

It works without effort in the Playgrounds:
import UIKit
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
let window = UIWindow()
let viewController = UIViewController()
window.rootViewController = viewController
window.makeKeyAndVisible()
let message = (1...1000).reduce("") { $0 + "\($1)\n" }
let alert = UIAlertController(title: "title here", message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "action here", style: .default, handler: nil))
viewController.present(alert, animated: true, completion: nil)
PlaygroundPage.current.liveView = window
I got 1000 scrollable lines:

Answer 2

It works fine for me in Objective C:
NSString* messageString = #"Enter your Long text here";
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:#"Title"
message:messageString
preferredStyle:UIAlertControllerStyleAlert];
alertController.view.frame = [[UIScreen mainScreen] applicationFrame];
[alertController addAction:[UIAlertAction actionWithTitle:#“OK”
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *action){
[self okButtonTapped];
}]];
[self presentViewController:alertController animated:YES completion:nil];
For Swift you can use this Code:
let alertController = UIAlertController(title: "Your Title", message: "Your Text", preferredStyle: .Alert)
let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) { (action) in
println(action)
}
alertController.addAction(cancelAction)
let destroyAction = UIAlertAction(title: "Destroy", style: .Destructive) { (action) in
println(action)
}
alertController.addAction(destroyAction)
self.presentViewController(alertController, animated: true) {
// ...
}