iOS UIView动画问题 [英] iOS UIView Animation Issue

问题描述

在UITabBarController中的页面之间切换时，我对UIView动画有问题.

I have an issue with a UIView animation when switching between pages in a UITabBarController.

UIViewControllerA中的一个视图正在播放以下动画:-

A view in UIViewControllerA is playing the following animation:-

[UIView animateWithDuration:1.0 delay:0.0 options:UIViewAnimationOptionRepeat | UIViewAnimationOptionCurveLinear | UIViewAnimationOptionBeginFromCurrentState animations:^{
        CGAffineTransform transform = CGAffineTransformMakeRotation(M_PI);
        self.animationImageView.transform = transform;
    } completion:NULL];

动画是一个自定义加载轮，在加载一首歌曲时停止.

The animation is a custom loading wheel which stops when a song has been loaded.

如果我在页面之间进行切换，即从UIViewControllerA切换到UIViewControllerB，然后在UITabController中回到A，则动画会停止.当我尝试重新启动它时，它不会再次设置动画.

If I switch between pages, i.e. from UIViewControllerA to UIViewControllerB and then back to A in a UITabController the animation stops. It does not animate again when I try to restart it.

推荐答案

答案很简单，请重置转换:

The answer is simple, reset the transform:

self.animationImageView.transform = CGAffineTransformIdentity;

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