// YourAwesomeViewController.h

#import "PTImageAlbumViewController.h"

@interface YourAwesomeViewController : PTImageAlbumViewController

// ...

@end

// YourAwesomeViewController.m

#import "YourAwesomeViewController.h"

@implementation YourAwesomeViewController

//...

#pragma mark - PTImageAlbumViewDataSource

- (NSInteger)numberOfImagesInAlbumView:(PTImageAlbumView *)imageAlbumView {
    #warning missing implementation
}

- (NSString *)imageAlbumView:(PTImageAlbumView *)imageAlbumView sourceForImageAtIndex:(NSInteger)index {
    #warning missing implementation
}

- (CGSize)imageAlbumView:(PTImageAlbumView *)imageAlbumView sizeForImageAtIndex:(NSInteger)index {
    #warning missing implementation
}

- (NSString *)imageAlbumView:(PTImageAlbumView *)imageAlbumView sourceForThumbnailImageAtIndex:(NSInteger)index {
    #warning missing implementation
}

//...

@end