ios按钮点击后翻转效果

上图先，图上是一个按钮，点击后旋转，代码是网上找到的，不过找到的时候直接复制下来不能用，稍微整理下，为和我一样水平的菜鸟观摩一下下。

（1）引入“QuartzCore.framework”库，头部引用。

#include<QuartzCore/CoreAnimation.h>

（2）直接上代码，你懂的。

-(IBAction)buttonP:(id)sender{
    [self buttonAnimation:sender];
}

- (CAAnimation *) animationRotate {
    CATransform3D rotationTransform  = CATransform3DMakeRotation( M_PI/2 , 0 , 1 , 0 );
    CABasicAnimation* animation;
    animation = [CABasicAnimation animationWithKeyPath:@"transform"];
    animation.toValue = [NSValue valueWithCATransform3D:rotationTransform];
    animation.duration = 3;
    animation.autoreverses = YES;
    animation.cumulative = YES;
    animation.repeatCount = 1;
    animation.beginTime = 0.1;
    animation.delegate = self;
    return animation;
}

- (void)buttonAnimation:(id) sender{
    UIButton *theButton = sender;
    CAAnimation *myAnimationRotate = [self animationRotate];
    CAAnimationGroup* m_pGroupAnimation;
    m_pGroupAnimation = [CAAnimationGroup animation];
    m_pGroupAnimation.delegate = self;
    m_pGroupAnimation.removedOnCompletion = NO;
    m_pGroupAnimation.duration = 10;
    m_pGroupAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];   
    m_pGroupAnimation.repeatCount = 1;
    m_pGroupAnimation.fillMode = kCAFillModeForwards;
    m_pGroupAnimation.animations = [NSArray arrayWithObjects:myAnimationRotate, nil];
    [theButton.layer addAnimation:m_pGroupAnimation forKey:@"animationRotate"];
}
  
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{
    //todo
}

PS：

CATransform3DMakeRotation( M_PI/2 , 0 , 1 , 0 );第一个参数是旋转的角度，有一点需要著名，就是对象回按照你设定的角度的最短距离去旋转，后面三个参数分别是xyz（-1~1之间的值）代表的一个向量值。顺时针或者逆时针旋转尚未搞定具体是什么参数来控制的，有知道的朋友提醒下，谢谢！