#import <objc/runtime.h>

NSArray *AllImageNames() {
    unsigned int imageCount = 0;
    const char **imageNames = objc_copyImageNames(&imageCount);
    NSMutableArray<NSString *> *imageNameStrings = [[NSMutableArray alloc] initWithCapacity:imageCount];
    if (imageNames!=NULL) {
        for (unsigned int i = 0; i < imageCount; i++){
            const char *imageName = imageNames[i];
            NSLog(@"image name: %s", imageNames[i]);
            [imageNameStrings addObject:[NSString stringWithUTF8String:imageName]];
        }
        free(imageNames);
    }
    NSLog(@"Total image count: %u", imageCount);
    return [imageNameStrings sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)];
}

NSArray *AllClassNamesForImage(const char *imageName) {
    unsigned int classNamesCount = 0;
    const char ** classNames = objc_copyClassNamesForImage(imageName, &classNamesCount);

    NSMutableArray<NSString *> *classNameStrings = [[NSMutableArray alloc] initWithCapacity:classNamesCount];
    if (classNames != NULL) {
        for (int i = 0; i < classNamesCount; i++) {
            const char *className = classNames[i];
            NSLog(@"class name: %s", classNames[i]);
            [classNameStrings addObject:[NSString stringWithUTF8String:className]];
        }
        free(classNames);
    }
    NSLog(@"Total class count: %u", classNamesCount);
    return [classNameStrings sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)];
}

// eg:
//    AllImageNames();
//    AllClassNamesForImage(class_getImageName([self class]));
//    AllClassNamesForImage([NSBundle mainBundle].executablePath.UTF8String);