ios 做不倒翁动画效果

#pragma mark - 矫正不倒翁位置
- (void)setAnchorPoint:(CGPoint)anchorpoint forView:(UIView *)view{CGRect oldFrame = view.frame;view.layer.anchorPoint = anchorpoint;view.frame = oldFrame;
}- (void)startShowAnimation{[self setAnchorPoint: CGPointMake(0.5,1) forView:_babyImage];CABasicAnimation *displacementYAnimation = [CABasicAnimation animationWithKeyPath:@"position.y"];displacementYAnimation.fromValue = @(_babyImage.layer.position.y);displacementYAnimation.toValue = @(_babyImage.layer.position.y-5);displacementYAnimation.duration = 0.01;displacementYAnimation.removedOnCompletion = NO;displacementYAnimation.fillMode = kCAFillModeForwards;CABasicAnimation* startAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];startAnimation.toValue = [NSNumber numberWithFloat:-(M_PI/4) ];startAnimation.duration = 0.2;startAnimation.beginTime = 0.01;startAnimation.cumulative = NO;startAnimation.removedOnCompletion = NO;startAnimation.fillMode = kCAFillModeForwards;CABasicAnimation *backCenterAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];backCenterAnimation.toValue = [NSNumber numberWithFloat:0];backCenterAnimation.duration = 0.2;backCenterAnimation.beginTime = 0.2;backCenterAnimation.removedOnCompletion = NO;backCenterAnimation.fillMode = kCAFillModeForwards;CABasicAnimation *endAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];endAnimation.toValue = [NSNumber numberWithFloat:(M_PI/4) ];endAnimation.duration = 0.2;endAnimation.beginTime = 0.4;endAnimation.removedOnCompletion = NO;endAnimation.fillMode = kCAFillModeForwards;CABasicAnimation *backAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];backAnimation.toValue = [NSNumber numberWithFloat:0];backAnimation.duration = 0.2;backAnimation.beginTime = 0.6;backAnimation.removedOnCompletion = NO;backAnimation.fillMode = kCAFillModeForwards;CAAnimationGroup *animationGroup = [CAAnimationGroup animation];animationGroup.animations = @[displacementYAnimation,startAnimation,backCenterAnimation,endAnimation,backAnimation];animationGroup.duration = 0.8;animationGroup.repeatCount = 8;[_babyImage.layer addAnimation:animationGroup forKey:@"rotationAnimationZ"];}- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event{if (motion == UIEventSubtypeMotionShake) {[self startShowAnimation];}
}

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ios 做不倒翁动画效果

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