修改图片颜色

//改变图片颜色

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

{

    UIGraphicsBeginImageContextWithOptions(image.size, NO, image.scale);

    CGContextRef context = UIGraphicsGetCurrentContext();

    CGContextTranslateCTM(context, 0, image.size.height);

    CGContextScaleCTM(context, 1.0, -1.0);

    CGContextSetBlendMode(context, kCGBlendModeNormal);

    CGRect rect = CGRectMake(0, 0, image.size.width, image.size.height);

    CGContextClipToMask(context, rect, image.CGImage);

    [color setFill];

    CGContextFillRect(context, rect);

    UIImage*newImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return newImage;

}