Метод изменения картинки

#import <QuartzCore/QuartzCore.h>

addProjectBtn setImage:[Helper getImageWithColor:[UIColor colorWithWhite:0.0 alpha:0.1] withSize:addProjectBtn.frame.size] forState:UIControlStateHighlighted];

+ (UIImage *)getImageWithColor:(UIColor *)color withSize:(CGSize)size{

    

    UIGraphicsBeginImageContext(size);

    CGContextRef context = UIGraphicsGetCurrentContext();

    CGContextSetFillColor(context, CGColorGetComponents(color.CGColor));

CGContextFillRect(context, CGRectMake(0, 0, size.width, size.height));

    

    UIImage *i = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return i;

}