ios 核心动画-------跳动效果的实现,旋转效果的实现

来源：互联网发布：中国网络安全法编辑：程序博客网时间：2024/05/18 02:40

1.跳动效果的实现

+ (void)popJumpAnimationView:(UIView *)sender

{

CGFloat duration = 1.f;

CGFloat height = 7.f;

CAKeyframeAnimation * animation = [CAKeyframeAnimationanimationWithKeyPath:@"transform.translation.y"];

CGFloat currentTy = sender.transform.ty;

animation.duration = duration;

animation.values =@[@(currentTy),@(currentTy - height/4),@(currentTy-height/4*2),@(currentTy-height/4*3),@(currentTy - height),@(currentTy-height/4*3),@(currentTy -height/4*2),@(currentTy - height/4),@(currentTy)];

animation.keyTimes =@[ @(0),@(0.025), @(0.085),@(0.2), @(0.5),@(0.8), @(0.915),@(0.975), @(1)];

animation.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseInEaseOut];

animation.repeatCount =HUGE_VALF;

[sender.layer addAnimation:animation forKey:@"kViewShakerAnimationKey"];

}

+ (void)popRotationAnimation:(UIView *)sender

{

CABasicAnimation *animation = [CABasicAnimationanimationWithKeyPath:@"transform.rotation.z"];

//默认是顺时针效果，若将fromValue和toValue的值互换，则为逆时针效果

animation.fromValue = [NSNumbernumberWithFloat:0.f];

animation.toValue = [NSNumbernumberWithFloat:M_PI *2];

animation.duration =1.5f;

animation.autoreverses =NO;

animation.fillMode =kCAFillModeForwards;

animation.repeatCount =500;

[sender.layer addAnimation:animation forKey:nil];

}

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