摘要:
CGAffineTransformMakeTranslation(width, 0.0);是改变位置的,CGAffineTransformRotate(transform, M_PI);是旋转的。CGAffineTransformMakeRotation(-M_PI);也是旋转的transform = CGAffineTransformScale(transform, -1.0, 1.0);是缩放的。view.transform = CGAffineTransformIdentity;线性代数里面讲的矩阵变换,这个是恒等变换当你改变过一个view.transform属性或者view.layer 阅读全文