Get Last Photo from Camera Roll

gistfile1.m

- (void)getLatestPhoto {
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
    [library enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos usingBlock:^(ALAssetsGroup *group, BOOL *stop) {

        [group setAssetsFilter:[ALAssetsFilter allPhotos]];

        [group enumerateAssetsAtIndexes:[NSIndexSet indexSetWithIndex:[group numberOfAssets]-1] options:0 usingBlock:^(ALAsset *alAsset, NSUInteger index, BOOL *innerStop) {

            if (alAsset) {
                ALAssetRepresentation *representation = [alAsset defaultRepresentation];
                UIImage *latestPhoto = [UIImage imageWithCGImage:[representation fullResolutionImage]];

                // Got the lastestPhoto
            }
        }];
    }
    failureBlock: ^(NSError *error) {
        NSLog(@"Error");
    }];
}