为什么我的Swift代码不起作用？

Question

I have written a piece of code in my app which is supposed to generate a random number from 1-10 and my images are all named 1-10. It then is supposed to display that image on the screen in a UIImageView. Here is my code:

import UIKit
import Foundation

class ViewController: UIViewController {
    @IBOutlet var QuoteImage: UIImageView!

    func randomImagePicker() {
        var QuoteImages: [UIImage] {
            var QuoteImages: [UIImage] = []
            // Create images named 1 - 10
            let randomImageIndex = Int(arc4random_uniform(10) + 1)
            // Assign the image property of the imageView to the element behind the random index in the images array
            self.QuoteImage.image = QuoteImages[randomImageIndex]
            let image = UIImage(named: "\(randomImageIndex)")!
            QuoteImages.append(image)
            // Create a random index
            return QuoteImages
        }
    }
}

Answer 1

I'd suggest simply getting the index and then setting the image property of the image view accordingly:

class ViewController: UIViewController {
    @IBOutlet var quoteImageView: UIImageView!

    func randomImagePicker() {
        let index = Int(arc4random_uniform(10) + 1)
        quoteImageView.image = UIImage(named: "\(index)")!
    }
}

If you need the array for some other purpose, explain what your intent was and we can clarify how you might achieve that. But if you're just trying to set the image of the image view to be some random image, the above should suffice.