this is a code for a program that behaves like this : When the user presses the button , the UIImage called " The Character" goes up (It changes its y axis). But when I run the program , it doesn't crash but when I press the button called "characterGoesUp" , the program crashes and I get the following in the debugger : "lldb".Why? Code :
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var TheCharacter: UIImageView!
@IBAction func characterGoesUp(_ sender: Any) {
let xPos = TheCharacter.frame.origin.x
let yPos = TheCharacter.frame.origin.y - 225
let heightCharacter = TheCharacter.frame.size.height
let widthCharacter = TheCharacter.frame.size.width
UIView.animate(withDuration: 1.0, animations: {
self.TheCharacter.frame = CGRect(x: xPos, y: yPos, width: widthCharacter, height: heightCharacter)
}) { (finished) in
}
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
}
Xcode version : 9.3
EDIT: The error is this : "Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value"
