UIImage+Creator.m

+ (UIImage *)imageNamedWithoutCache:(NSString *)imagePath withMask:(NSString *)maskPath
{
    UIImage *realImage = [self imageNamedWithoutCache:imagePath];
    UIImage *maskImage = [self imageNamedWithoutCache:maskPath];
    
    CGImageRef maskRef = maskImage.CGImage;
    
    CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef),
                                        CGImageGetHeight(maskRef),
                                        CGImageGetBitsPerComponent(maskRef),
                                        CGImageGetBitsPerPixel(maskRef),
                                        CGImageGetBytesPerRow(maskRef),
                                        CGImageGetDataProvider(maskRef), NULL, false);
    
    CGImageRef masked = CGImageCreateWithMask([realImage CGImage], mask);
    
    return [UIImage imageWithCGImage:masked];
}