How can I change image tintColor

Question

I\'m receiving image from a server, then based on a color chosen by the user, the image color will be changed.

I tried the following :

_sketchImageVi         


        

Answer 1

You can try:

 _sketchImageView.image = [self imageNamed:@"imageName" withColor:[UIColor blackColor]];

 - (UIImage *)imageNamed:(NSString *)name withColor:(UIColor *)color
 {
     // load the image
     //NSString *name = @"badge.png";
     UIImage *img = [UIImage imageNamed:name];

     // begin a new image context, to draw our colored image onto
     UIGraphicsBeginImageContext(img.size);

     // get a reference to that context we created
     CGContextRef context = UIGraphicsGetCurrentContext();

     // set the fill color
     [color setFill];

    // translate/flip the graphics context (for transforming from CG* coords to UI* coords
    CGContextTranslateCTM(context, 0, img.size.height);
    CGContextScaleCTM(context, 1.0, -1.0);

    // set the blend mode to color burn, and the original image
    CGContextSetBlendMode(context, kCGBlendModeColorBurn);
    CGRect rect = CGRectMake(0, 0, img.size.width, img.size.height);
    CGContextDrawImage(context, rect, img.CGImage);

    // set a mask that matches the shape of the image, then draw (color burn) a colored rectangle
    CGContextClipToMask(context, rect, img.CGImage);
    CGContextAddRect(context, rect);
    CGContextDrawPath(context,kCGPathFill);

    // generate a new UIImage from the graphics context we drew onto
    UIImage *coloredImg = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    //return the color-burned image
    return coloredImg;
}