iOS フォトアルバムデータの取得

AppDelegate.m

//
//  AppDelegate.m
//  PhotoLibraryAccess

#import "AppDelegate.h"

#import <AssetsLibrary/AssetsLibrary.h>

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  ALAssetsLibrary* library = [[ALAssetsLibrary alloc] init];
  [library enumerateGroupsWithTypes:ALAssetsGroupAll 
                         usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
                           [self loadGroup:group];
                         } failureBlock:^(NSError *error) {
                           ;
                         }];  
  return YES;
}

- (void)loadGroup:(ALAssetsGroup *)group
{
  [group enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) {
    ALAssetRepresentation* representation = [result defaultRepresentation];
    UIImage* image = [UIImage imageWithCGImage:[representation fullScreenImage]];
    NSLog(@"%@", image);
  }];
}

@end