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Rehaan Advani
Courses Plus Student 2,485 PointsI'm getting a fatal error: unexpectedly found nil while unwrapping an optional value
import Foundation
import UIKit
class ViewController2: UIViewController {
@IBOutlet weak var goBackToFirstViewController: UIButton!
@IBOutlet weak var globeMap: UIImageView!
@IBOutlet weak var displayInfoHeader: UILabel!
@IBOutlet weak var button: UIButton!
@IBOutlet weak var animateImageView: UIButton!
var imageList = [UIImage]()
@IBAction func animateAction() {
startAnimation()
}
@IBAction func hideAll(sender: AnyObject) {
displayInfoHeader.hidden = true
button.hidden = true
}
@IBAction func singaporeInformation(sender: AnyObject) {
button.hidden = false
displayInfoHeader.hidden = false
displayInfoHeader.text = "Singapore, Singapore"
}
@IBAction func boiseInformation(sender: AnyObject) {
button.hidden = false
displayInfoHeader.hidden = false
displayInfoHeader.text = "Boise, Idaho"
}
@IBAction func indiaInformation(sender: AnyObject) {
button.hidden = false
displayInfoHeader.hidden = false
displayInfoHeader.text = "Mumbai, India"
}
@IBAction func paloAltoInformation(sender: AnyObject) {
button.hidden = false
displayInfoHeader.hidden = false
displayInfoHeader.text = "Palo Alto, California"
}
override func viewDidLoad() {
for i in 1...53 {
let imageName = "\(i).png"
imageList.append(UIImage(named: imageName)!) //THIS IS WHERE I AM GETTING MY ISSUE
}
button.hidden = true
displayInfoHeader.hidden = true
globeMap.image = UIImage(named: "map.png")
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func startAnimation() -> Void {
if !globeMap.isAnimating() {
globeMap.animationImages = imageList
globeMap.startAnimating()
} else {
globeMap.stopAnimating()
globeMap.image = UIImage(named: "map.png")
}
}
}
1 Answer

Chris Shaw
26,650 PointsHi Rehaan,
Make sure you have images in your xcassets folder that are numbered from 1 to 53 otherwise you will get an error as the executable won't be able to find a file named 1.png for example.
Happy coding!