CODEWITHSUNDEEP
arraysswiftbuttonuiimageview
Tom
Tom

Reputation: 81

On a button press to scroll through an array, my app crashes

When I press nextImage1 in the simulator, I get an error saying:

[Project_BodySwapp.ViewController nextImage:]: unrecognized selector sent to instance 0x7ffe4660a1e0'

import UIKit

class ViewController: UIViewController {

var imageNames1 = ["doghead","uk"]
var imageNames2 = ["macawLower","us"]
var pickedImage = String()
var currentImage = 0

@IBOutlet weak var displayImage: UIImageView!
//212x138
@IBOutlet weak var displayImage2: UIImageView!
//212x334


//BUTTON FUNCTIONALITY
//UPPER
@IBAction func randomizeImage(_ sender: Any) {
    displayImage.image = UIImage(named: (produceRandomValue(imageNames1)))
}

@IBAction func nextImage1(_ sender: Any) {
    currentImage += 1
    displayImage.image = UIImage(named: imageNames1[currentImage])
}

@IBAction func previousImage1(_ sender: Any) {


}



//LOWER
@IBAction func randomizeImage2(_ sender: Any) {

    displayImage2.image = UIImage(named: (produceRandomValue(imageNames2)))
}



func randomFromZero(to number: Int) -> Int {
    return Int(arc4random_uniform(UInt32(number)))
}

func produceRandomValue(_ array: [String]) -> String {
    let randomIndex = randomFromZero(to: array.count)
    let pickedImage = imageNames1[randomIndex]
    return pickedImage
}


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


}

Any help would be greatly appreciated

Upvotes: 2

Views: 31

Answers (1)

Lawliet
Lawliet

Reputation: 3499

Your button's action touchUpInside has been set as nextImage but in your code you don't have that. You have nextImage1 instead. Recheck the Connections Inspector.

enter image description here

Upvotes: 2

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