无限循环动画 [英] Infinitely looping animation

问题描述

我正在尝试创建无限循环动画，但遇到了一些麻烦。我正在使用这行代码使我的视图悸动红色，但是当我调用此行时，它可以工作，但是我的UI没有响应。

I am trying to create an infinitely looping animation but am having some trouble. I am using this line of code the make my view "throb" red but when I call this line it works but make my UI unresponsive.

[UIView animateWithDuration:1.0f 
                      delay:0.0f 
                    options:(UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat) 
                 animations:^{ 
  self.backgroundColor = [UIColor colorWithRed:0.5 green:0.0 blue:0.0 alpha:1.0]; 
} 
                completion:nil];

我的问题是：1）这是正确的方法吗？ 2）为什么这会使UI无响应？

My questions are: 1)is this the correct way to do this? 2)why does this make the UI unresponsive?

推荐答案

您的选项需要包含 UIViewAnimationOptionAllowUserInteraction 。默认情况下，UIView动画在运行时禁用输入。

Your options need to include UIViewAnimationOptionAllowUserInteraction. By default, UIView animations disable input while they're running.

这篇关于无限循环动画的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！