IOS 小技能 通过颜色制作图片

//通过颜色制作图片

- (UIImage *)imageWithColor:(UIColor *)color

{

    CGRect rect = CGRectMake(0.0f,0.0f, 1.0f, 1.0f);

    UIGraphicsBeginImageContext(rect.size);

    CGContextRef context =UIGraphicsGetCurrentContext();

    

    CGContextSetFillColorWithColor(context, [colorCGColor]);

    CGContextFillRect(context, rect);

    

    UIImage *image =UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return image;

}