Question

仪器向我显示我在以下代码中有泄漏：

            CGContextMoveToPoint(c, startPoint.x, self.frame.size.height - offsetYBottom);
            CGContextAddLineToPoint(c, startPoint.x, startPoint.y);
            CGContextAddLineToPoint(c, endPoint.x, endPoint.y);
            CGContextAddLineToPoint(c, endPoint.x, self.frame.size.height - offsetYBottom);
            CGContextClosePath(c);

            CGGradientRef myGradient;
            CGColorSpaceRef myColorspace;

            size_t num_locations = 2;
            CGFloat locations[2] = { 0.0, 1.0 };
            CGFloat components[8] = { 0.0/255.0, 197.0/255.0, 254.0/255.0, 1.0f, 0.0/255.0, 197.0/255.0, 254.0/255.0, 0.25f };

            myColorspace = CGColorSpaceCreateDeviceRGB();
            myGradient = CGGradientCreateWithColorComponents (myColorspace, components, locations, num_locations);

            CGPoint myStartPoint, myEndPoint;
            myStartPoint.x = self.frame.size.width / 2;
            myStartPoint.y = 0.0;
            myEndPoint.x = self.frame.size.width / 2;
            myEndPoint.y = self.frame.size.height;

            CGContextSaveGState(c);
            CGContextClip(c);
            CGContextDrawLinearGradient (c, myGradient, myStartPoint, myEndPoint, 0);
            CGContextRestoreGState(c);

如果我评论这一部分，泄漏就会消失。 startPoint和endPoint是CGPoint。

负责的来电者：CGTypeCreateInstanceWithAllocator。

可能是什么问题？

Answer 1

在Create Rule之后，您必须在完成后发布myColorspace和myGradient：

CGColorSpaceRelease(myColorspace);
CGGradientRelease(myGradient);

Answer 2

尝试释放myGradient对象

CGGradientRelease(myGradient);

Objective-C - 泄漏在哪里？

2 个答案: