ios 如何区域截图

Question

我现在使用如下方法对屏幕截图：
UIGraphicsBeginImageContext(self.view.bounds.size);
[self.view.layerrenderInContext:UIGraphicsGetCurrentContext()];
currentCaptureImage=UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
但我想要的是区域截图，也就是说，我要设置origin坐标，然后设置width和height，请问怎么做？

Answer 1

CGRectrect=self.view.frame;UIGraphicsBeginImageContext(rect.size);CGContextRefcontext=UIGraphicsGetCurrentContext();[self.view.layerrenderInContext:context];UIImage*img=UIGraphicsGetImageFromCurrentImageContext();UIGraphicsEndImageContext();floatoriginX;floatoriginy;floatwidth;floatheight;//你需要的区域起点,宽,高;CGRectrect1=CGRectMake(originX,originY,width,height);UIImage*imgeee=[UIImageimageWithCGImage:CGImageCreateWithImageInRect([imgCGImage],rect1)];