相关疑难解决方法(0)

我正在使用以下代码为UITableViewCell创建渐变背景.虽然这适用于普通表格单元格,但渐变仅出现在分组表格单元格的左右角落.就好像然后应用渐变一样,细胞被绘制在它上面.

有人可以建议修改代码,这对分组表格单元格有效吗？或者有一种完全不同的方式吗？

- (void)drawRect:(CGRect)rect {
CGContextRef c = UIGraphicsGetCurrentContext();

CGGradientRef myGradient;
CGColorSpaceRef myColorspace;

size_t num_locations = 2;
CGFloat locations[2] = {0.0, 1.0};
CGFloat components[8] = {0.8f, 0.8f, 0.8f, 1.0f, // Bottom Colour: Red, Green, Blue, Alpha.
    0.9f, 0.9f, 0.9f, 1.0}; // Top Colour: Red, Green, Blue, Alpha.

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

CGColorSpaceRelease(myColorspace);

CGPoint startPoint, endPoint;
startPoint.x = 0.0;
startPoint.y = self.frame.size.height;
endPoint.x = 0.0;
endPoint.y = 0.0;
CGContextDrawLinearGradient (c, myGradient, startPoint, endPoint, 0);

const …