我想要的是区域截图，我要设置origin坐标，然后设置width和height，请问怎么做？

Question

我现在使用如下方法对屏幕截图：
UIGraphicsBeginImageContext(self.view.bounds.size);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
currentCaptureImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

Answer 1

CGRect rect =self.view.frame;UIGraphicsBeginImageContext(rect.size);CGContextRef context = UIGraphicsGetCurrentContext();[self.view.layer renderInContext:context];UIImage *img = UIGraphicsGetImageFromCurrentImageContext();UIGraphicsEndImageContext();float originX ;float originy ;float width ;float height ;//你需要的区域起点,宽,高;CGRect rect1 = CGRectMake(originX , originY , width , height);UIImage * imgeee = [UIImage imageWithCGImage:CGImageCreateWithImageInRect([img CGImage], rect1)];

Answer 2

主要就是下面这句UIImage *resultImg = [UIImage imageWithCGImage:CGImageCreateWithImageInRect(img.CGImage, rect)];