How do I animate a UIButton between two PNG images?(如何在两个 PNG 图像之间为 UIButton 设置动画?)

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问题描述

我有两个要用作按钮的 PNG.如何通过在这两个图像之间快速切换来为 UIButton 设置动画?

I have two PNGs I want to use as a button. How can I animate a UIButton by switching rapidly between these two images?

推荐答案

您可以使用按钮 imageView 的 animationImages 属性:

You can use animationImages property of your button's imageView:

myButton.imageView.animationImages =
[NSArray arrayWithObjects:[UIImage imageNamed:@"image1.png"],
                          [UIImage imageNamed:@"image2.png"],
                          nil];
myButton.imageView.animationDuration = 0.5; //whatever you want (in seconds)
[myButton.imageView startAnimating];

您的按钮将在您的两个图像之间切换.

Your button will switch between your two images.

正如@tidbeck 指出的那样，按钮需要分配一个图像才能创建 imageview 属性.

As @tidbeck pointed the button needs to have an image assigned to create the imageview property.

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