来自CALayer的CGImage（或UIImage）

本文介绍了来自CALayer的CGImage（或UIImage）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我创建了一个 CALayer （我在图层中添加了几个形状，但最终我有一个CALayer），而且我有很多把它添加到CGImage的麻烦。我找到了一些 [CALayer renderInContext：ctx] 的引用，但我不确定如何实现它。

I have created a CALayer (I added several shapes to the layer, but ultimately, I have a single CALayer), and I am having a LOT of trouble adding it to a CGImage. I have found some references to [CALayer renderInContext:ctx], but I am not sure how to implement it.

之前有没有人这样做过？

Has anyone done this before?

推荐答案

试试这个......

Try this...

UIGraphicsBeginImageContext(layer.bounds.size); [layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext();