动画uibutton应用图像迅速

Question

我想通过转动按钮上的两个图像来应用动画效果.我已应用以下代码但无法看到动画效果.我已正确应用IBOutlets.

    var image1:UIImage = UIImage(named: "img_mic_off")!
    var image2:UIImage = UIImage(named: "img_mic_on")!
    btnRecord.imageView?.animationImages = [image1,image1]
    btnRecord.imageView?.animationDuration = 1.0
    btnRecord.imageView!.startAnimating()

请帮我解决为什么它不能使用这个给定代码的问题.提前致谢.

Answer 1

看看我做了什么.图像正在发生变化.所以我希望这是你真正需要的.

var image1:UIImage = UIImage(named: "img_mic_off")!
var image2:UIImage = UIImage(named: "img_mic_on")!
btn.setImage(image1, forState: UIControlState.Normal)
btn.imageView!.animationImages = [image1, image2]
btn.imageView!.animationDuration = 1.0
btn.imageView!.startAnimating()