实现三位旋转动画的方法有很多种，这里介绍三种

一：UIView

[UIView animateWithDuration:1.0 animations:^{
        self.iconView.layer.transform = CATransform3DMakeRotation(M_PI_2, 0, 1, 0);
    } completion:^(BOOL finished) {
        self.iconView.image = [UIImage imageNamed:@"user_defaultgift"];

        [UIView animateWithDuration:1.0 animations:^{
            self.iconView.layer.transform = CATransform3DMakeRotation(M_PI, 0, 1, 0);
        }];
    }];

二：CATransition自定义

 CATransition
  CATransition *anim = [CATransition animation];
 anim.duration = 1.0;
 anim.type = @"rippleEffect";
 [self.iconView.layer addAnimation:anim forKey:nil];

三：CATransition

[UIView transitionWithView:self.iconView duration:1.0 options:UIViewAnimationOptionTransitionFlipFromLeft animations:^{
        self.iconView.image = [UIImage imageNamed:@"user_defaultgift"];
    } completion:^(BOOL finished) {
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            [UIView transitionWithView:self.iconView duration:1.0 options:UIViewAnimationOptionTransitionFlipFromRight animations:^{
                self.iconView.image = [UIImage imageNamed:@"default_avatar"];
            } completion:nil];
        });
    }];
}

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