问题描述

在animateWithDuration调用时旋转

用下面的代码动画UIView，运行正常，就是不能实现在调用时实现旋转和缩放，我想同时实现这些，需要缩放至0，并且旋转。

[UIView animateWithDuration:0.4 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut                 animations:^(void) {                     recognizer.view.transform = CGAffineTransformMakeRotation(DegreesToRadians(540));                     recognizer.view.backgroundColor = [[UIColor alloc] initWithRed:220.0/255.0 green:220.0/255.0 blue:220.0/255.0 alpha:1.0];                    }];

解决方案

用CGAffineTransformConcat方法：

[UIView animateWithDuration:0.4 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut                 animations:^(void) {                     recognizer.view.transform = CGAffineTransformConcat(CGAffineTransformMakeRotation(DegreesToRadians(540)) CGAffineTransformMakeScale(1.0 1.0));                     recognizer.view.backgroundColor = [[UIColor alloc] initWithRed:220.0/255.0 green:220.0/255.0 blue:220.0/255.0 alpha:1.0];                    }];

希望有帮助~