CATransformLayer使用

    //red layer

    CALayer *redLayer = [CALayer layer];

    redLayer.frame = (CGRect){CGPointZero, CGSizeMake(200, 200)};

    redLayer.position = CGPointMake(200, 300);

    redLayer.backgroundColor = [UIColor redColor].CGColor;

    //Z轴平移

    CATransform3D redTransform = CATransform3DIdentity;

    redTransform = CATransform3DTranslate(redTransform, 0, 0, -10);

    redLayer.transform = redTransform;

    

    //blue layer

    CALayer *blueLayer = [CALayer layer];

    blueLayer.frame = (CGRect){CGPointZero, CGSizeMake(200, 200)};

    blueLayer.position = CGPointMake(200, 300);

    blueLayer.backgroundColor = [UIColor blueColor].CGColor;

    //Z轴平移

    CATransform3D blueTransfrom = CATransform3DIdentity;

    blueTransfrom = CATransform3DTranslate(blueTransfrom, 0, 0, -30);

    blueLayer.transform = blueTransfrom;

    

    //创建容器layer

    CATransformLayer *container = [CATransformLayer layer];  //保证redLayer和blueLayer是有层级的，CALayer不具备这个功能

    container.frame = self.view.bounds;

    CATransform3D containerTransform = CATransform3DIdentity;

    containerTransform.m34 = - 1.0/500.0;

    containerTransform = CATransform3DRotate(containerTransform, 30.0 * M_PI / 180.0f, 0, 1, 0);

    container.transform = containerTransform;

    

    [container addSublayer:redLayer];

    [container addSublayer:blueLayer];

 

    [self.view.layer addSublayer:container];

 

效果如下: