Ios 合并2个NSURL会话，以便我可以将其中两张instagram用户的照片合并在一起

如您所见，我有两种方法

tuula

和

wendyslookbook

。然后我在我的

mostPopular

方法中调用它们。我已经从Instagram API请求了这些照片，但现在我想把这两张用户照片放在一起。我该怎么做

//
//  PhotosViewController.m
//  Photo Bombers
//
//  Created by Alex Macleod on 20/8/14.
//  Copyright (c) 2014 Alex Macleod. All rights reserved.
//

#import "PhotosViewController.h"
#import "PhotoCell.h"
#import "DetailViewController.h"
#import "PresentDetailTransition.h"
#import "DismissDetailTransition.h"

#import <SimpleAuth/SimpleAuth.h>

@interface PhotosViewController () <UIViewControllerTransitioningDelegate>
@property (nonatomic) NSString *accessToken;
@property (nonatomic) NSArray *photos;
@end

@implementation PhotosViewController

- (instancetype) init {
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc]init];
    layout.itemSize = CGSizeMake(106.0, 106.0);
    layout.minimumInteritemSpacing = 1.0;
    layout.minimumLineSpacing = 1.0;

    return (self = [super initWithCollectionViewLayout:layout]);
}

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title = @"Fashun";

    [self.collectionView registerClass:[PhotoCell class] forCellWithReuseIdentifier:@"photo"];
    self.collectionView.backgroundColor = [UIColor whiteColor];

    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    self.accessToken = [userDefaults objectForKey:@"accessToken"];

    if (self.accessToken == nil) {

        [SimpleAuth authorize:@"instagram" options:@{@"scope": @[@"likes"]} completion:^(NSDictionary *responseObject, NSError *error) {

             self.accessToken = responseObject[@"credentials"][@"token"];
            [userDefaults setObject:self.accessToken forKey:@"accessToken"];
            [userDefaults synchronize];

            [self mostPopular];
        }];
    } else {
        [self mostPopular];
    }
}

- (void)tuula {
    NSURLSession *session = [NSURLSession sharedSession];
    NSString *urlString = [[NSString alloc]initWithFormat:@"https://api.instagram.com/v1/users/7522782/media/recent/?access_token=%@", self.accessToken];


    NSURL *url = [[NSURL alloc] initWithString:urlString];
    NSURLRequest *request = [[NSURLRequest alloc]initWithURL:url];
    NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {
        NSLog(@"links: %@", location);

        NSData *data = [[NSData alloc]initWithContentsOfURL:location];
        NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];

        self.photos = [responseDictionary valueForKeyPath:@"data"];

        dispatch_async(dispatch_get_main_queue(), ^{
            [self.collectionView reloadData];
        });
    }];
    [task resume];

}

- (void)wendyslookbook {
    NSURLSession *session = [NSURLSession sharedSession];
    NSString *urlString = [[NSString alloc]initWithFormat:@"https://api.instagram.com/v1/users/14454619/media/recent/?access_token=%@", self.accessToken];


    NSURL *url = [[NSURL alloc] initWithString:urlString];
    NSURLRequest *request = [[NSURLRequest alloc]initWithURL:url];
    NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {
        NSLog(@"links: %@", location);

        NSData *data = [[NSData alloc]initWithContentsOfURL:location];
        NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];

        self.photos = [responseDictionary valueForKeyPath:@"data"];

        dispatch_async(dispatch_get_main_queue(), ^{
            [self.collectionView reloadData];
        });
    }];
    [task resume];

}


- (void)mostPopular {
    [self tuula];
    [self wendyslookbook];

}


- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return [self.photos count];
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    PhotoCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"photo" forIndexPath:indexPath];


    cell.backgroundColor = [UIColor lightGrayColor];
    cell.photo = self.photos[indexPath.row];
    return cell;
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    NSDictionary *photo = self.photos[indexPath.row];
    DetailViewController *viewController = [[DetailViewController alloc]init];
    viewController.modalPresentationStyle = UIModalPresentationCustom;
    viewController.transitioningDelegate = self;
    viewController.photo = photo;
    [self presentViewController:viewController animated:YES completion:nil];
}

- (id<UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented
                                                                  presentingController:(UIViewController *)presenting
                                                                      sourceController:(UIViewController *)source {
    return [[PresentDetailTransition alloc]init];
}

- (id<UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed {
    return [[DismissDetailTransition alloc]init];
}


@end

//
//PhotosViewController.m
//照片轰炸机
//
//亚历克斯·麦克劳德于2014年8月20日创作。
//版权所有（c）2014亚历克斯·麦克劳德。版权所有。
//
#导入“PhotosViewController.h”
#导入“PhotoCell.h”
#导入“DetailViewController.h”
#导入“PresentDetailTransition.h”
#导入“DismissDetailTransition.h”
#进口
@接口视图控制器（）
@属性（非原子）NSString*accessToken；
@财产（非原子）NSArray*照片；
@结束
@视图控制器的实现
-（instancetype）初始化{
UICollectionViewFlowLayout*布局=[[UICollectionViewFlowLayout alloc]init]；
layout.itemSize=CGSizeMake（106.0,106.0）；
layout.minimumInteritemSpacing=1.0；
layout.minimumLineSpacing=1.0；
返回（self=[super initWithCollectionViewLayout:layout]）；
}
-（无效）viewDidLoad{
[超级视图下载]；
self.title=@“发顺”；
[self.collectionView注册表类：[PhotoCell类]forCellWithReuseIdentifier:@“photo”]；
self.collectionView.backgroundColor=[UIColor whiteColor]；
NSUserDefaults*userDefaults=[NSUserDefaults standardUserDefaults]；
self.accessToken=[userDefaults objectForKey:@“accessToken”]；
if（self.accessToken==nil）{
[SimpleAuthorization:@“instagram”选项：@{“scope”：@[@“likes”}完成：^（NSDictionary*responseObject，NSError*错误）{
self.accessToken=responseObject[@“credentials”][@“token”]；
[userDefaults setObject:self.accessToken forKey:@“accessToken”]；
[用户默认同步]；
[自我最普遍]；
}];
}否则{
[自我最普遍]；
}
}
-（无效）图拉{
NSURLSession*会话=[NSURLSession sharedSession]；
NSString*urlString=[[NSString alloc]initWithFormat:@”https://api.instagram.com/v1/users/7522782/media/recent/?access_token=%@“，self.accessToken]；
NSURL*url=[[NSURL alloc]initWithString:urlString]；
NSURLRequest*request=[[NSURLRequest alloc]initWithURL:url]；
NSURLSessionDownloadTask*任务=[session downloadTaskWithRequest:request completionHandler:^（NSURL*位置，NSURResponse*响应，NSError*错误）{
NSLog（@“链接：%@”，位置）；
NSData*data=[[NSData alloc]initWithContentsOfURL:location]；
NSDictionary*responseDictionary=[NSJSONSerialization JSONObjectWithData:数据选项：编织错误：nil]；
self.photos=[responseDictionary valueForKeyPath:@“data”]；
dispatch\u async（dispatch\u get\u main\u queue（）^{
[self.collectionView-reloadData]；
});
}];
[任务恢复]；
}
-（作废）wendyslookbook{
NSURLSession*会话=[NSURLSession sharedSession]；
NSString*urlString=[[NSString alloc]initWithFormat:@”https://api.instagram.com/v1/users/14454619/media/recent/?access_token=%@“，self.accessToken]；
NSURL*url=[[NSURL alloc]initWithString:urlString]；
NSURLRequest*request=[[NSURLRequest alloc]initWithURL:url]；
NSURLSessionDownloadTask*任务=[session downloadTaskWithRequest:request completionHandler:^（NSURL*位置，NSURResponse*响应，NSError*错误）{
NSLog（@“链接：%@”，位置）；
NSData*data=[[NSData alloc]initWithContentsOfURL:location]；
NSDictionary*responseDictionary=[NSJSONSerialization JSONObjectWithData:数据选项：编织错误：nil]；
self.photos=[responseDictionary valueForKeyPath:@“data”]；
dispatch\u async（dispatch\u get\u main\u queue（）^{
[self.collectionView-reloadData]；
});
}];
[任务恢复]；
}
-（无效）大多数人{
[自我推拉]；
[self wendyslookbook]；
}
-（NSInteger）collectionView:（UICollectionView*）collectionView项目编号截面：（NSInteger）截面{
返回[self.photos count]；
}
-（UICollectionViewCell*）collectionView:（UICollectionView*）collectionView cellForItemAtIndexPath:（NSIndexPath*）indexPath{
PhotoCell*cell=[collectionView dequeueReusableCellWithReuseIdentifier:@“photo”forIndexPath:indexPath]；
cell.backgroundColor=[UIColor lightGrayColor]；
cell.photo=self.photos[indexPath.row]；
返回单元；
}
-（void）collectionView:（UICollectionView*）collectionView didSelectItemAtIndexPath:（NSIndexPath*）indexPath{
NSDictionary*photo=self.photos[indexPath.row]；
DetailViewController*viewController=[[DetailViewController alloc]init]；
viewController.modalPresentationStyle=UIModalPresentationCustom；
viewController.transitioningDelegate=self；
viewController.photo=照片；
[self-presentViewController:viewController动画：是完成：无]；
}
-（id）显示了animationControllerForPresentedController:（UIViewController*）
呈现控制器：（UIViewController*）呈现
sourceController:（UIViewController*）源{
返回[[PresentDetailTransition alloc]init]；
}
-（id）animationControllerForDismissedController:（UIViewController*）已解除{
返回[[DismissDetailTransition alloc]init]；
}
@结束

一次只显示一个用户，这太烦人了！分别下载它们，并使用您正在使用的任何成像技术来组合它们。为什么你认为网络会话需要合并？那没有道理。