IOS 实现3D 浮动效果动画

这篇文章主要介绍了IOS 实现3D 浮动效果动画的相关资料,需要的朋友可以参考下

涉及到的技术点

CATransform3DRotate
转换坐标系

整体视图的层级结构

tvOSCardView
cardImageView
cardParallaxView

转换坐标系的代码

 CGFloat xFactor = MIN(1, MAX(-1, (touchPoint.x - (self.bounds.size.width / 2)) / (self.bounds.size.width / 2))); CGFloat yFactor = MIN(1, MAX(-1, (touchPoint.y - (self.bounds.size.height / 2)) / (self.bounds.size.height / 2))); cardImageView.layer.transform = [self transformWithM34:1.0 / -500 xf:xFactor yf:yFactor]; cardParallaxView.layer.transform = [self transformWithM34:1.0 / -250 xf:xFactor yf:yFactor]; CGFloat zFactor = 180 * atan(yFactor / xFactor) / M_PI + 90;