相关疑难解决方法(0)

我有一个编译没有问题的代码.它在iPhone模拟器上运行良好,但在我的设备上,我得到了一个EXC_BAD_ACCESS.

这发生在辅助函数中以绘制渐变.我按照本教程进行操作.我的代码如下:

- (void) drawRect:(CGRect)rect
{
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGColorRef whiteColor = [UIColor whiteColor].CGColor;
    CGColorRef lightGrayColor = [UIColor colorWithRed:230.0/255.0
                                                green:230.0/255.0 
                                                 blue:230.0/255.0 
                                                alpha:1.0].CGColor;
    CGColorRef separatorColor = [UIColor colorWithRed:208.0/255.0
                                                green:208.0/255.0 
                                                 blue:208.0/255.0
                                                alpha:1.0].CGColor;
    CGRect paperRect = self.bounds;
    CGRect nameRect = self.nameLabel.frame;
    CGPoint sepStartPoint = CGPointMake(nameRect.origin.x, 
                                        nameRect.origin.x + nameRect.size.height + 2);
    CGPoint sepEndPoint = CGPointMake(nameRect.origin.x + nameRect.size.width, 
                                      nameRect.origin.x + nameRect.size.height + 2);

    drawLinearGradient(context, paperRect, lightGrayColor, whiteColor);
    draw1PxStroke(context, sepStartPoint, sepEndPoint, separatorColor);

}


// Callee, where the problem is
void drawLinearGradient(CGContextRef context,
                        CGRect …