ios - UIImageView 动画错误

Question

这里绝对是 Swift 初学者。

我一直在尝试获取一组简单的 png 来制作动画。

这是我的:

如有任何帮助，我们将不胜感激。

谢谢

#import <UIKit/UIKit.h>
class ViewController: UIViewController {

@IBOutlet var myImageView : UIImageView
@IBOutlet var animationBtn : UIButton
var imageList = UIImage[]()

@IBAction func animationBtnClicked(sender : AnyObject) {
    startAnimation()
}
override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    for i in 1...13
    {
        let imageName = "\(i)"
        imageList += UIImage(named: imageName)
    }
}

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

func startAnimation() -> Void
{
    if !myImageView.isAnimating()
    {
        myImageView.animationImages = imageList
        myImageView.startAnimating()
        animationBtn.setTitle("Stop Animation", forState: UIControlState.Normal)
    } else
    {
        myImageView.stopAnimating()
        myImageView.image = UIImage(named:"bomb.jpg")
        animationBtn.setTitle("Start Animation", forState: UIControlState.Normal)
    }
}

如果对任何人有帮助，这里是调整后的代码。干杯

导入 UIKit

类 View Controller :UIViewController {

@IBOutlet var myImageView: UIImageView!

@IBOutlet var animationBtn: UIButton!
var imageList = [UIImage]()


@IBAction func animationBtnClicked(sender: AnyObject) {
    startAnimation()
}



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


    for i in 1...99

    {
        let imageName = "\(i)"
        imageList.append(UIImage(named: imageName)!)
    }
}

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

        {
            myImageView.animationImages = imageList
            myImageView.startAnimating()

}

Answer 1

这些错误消息显示了确切的问题。

问题 1

为了修复没有初始化器，您需要在您的类中实现至少一个初始化函数。

问题 2

为了修复 IBOutlet 具有非可选，您需要将您的 IBOutlet 变量更改为可选。

@IBOutlet var myImageView : UIImageView!
@IBOutlet var animationBtn : UIButton!

问题 3

用于修复 [UIImage] 与 UInt8 不相同。 += 不能用于将单个 UIImage 附加到 [UIImage]

你需要改变:

imageList += UIImage(named: imageName)

到

imageList.append(UIImage(named: imageName))