动画UIButton状态变化 [英] Animate UIButton state change
本文介绍了动画UIButton状态变化的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用带有正常和突出显示状态图像的UIButton。它们按预期工作但我希望有一些淡入/合并过渡而不仅仅是突然交换。
I'm using a UIButton with images for normal and highlighted states. They work as expected but I want to have some fading/merging transition and not just a sudden swap.
我该怎么做?
推荐答案
这可以使用UIView的过渡动画来完成。 isHighlighted
属性不可动,因为它会转换整个视图。
This can be done using transition animation of a UIView. It does not matter the isHighlighted
property is not animatable, because it transitions the whole view.
UIView.transition(with: button,
duration: 4.0,
options: .transitionCrossDissolve,
animations: { button.isHighlighted = true },
completion: nil)
目标 - C
Objective-C
[UIView transitionWithView:button
duration:4.0
options:UIViewAnimationOptionTransitionCrossDissolve
animations:^{ button.highlighted = YES; }
completion:nil];
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