本文介绍了使用 Fabric SDK iOS 访问 Twitter 用户时间线的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在努力解决这个问题两天.我正在使用 Fabric SDK 和 Rest 套件,尝试为 Twitter 使用不同的 Rest API Web 服务.我可以使用 TWTRLogInButton 成功登录,会话对象带有 authTokenSecretauthToken 和其他值.当我尝试获取用户时间线时,我总是得到失败响应:

I am trying to struggle with this issue for two days. I am using Fabric SDK and Rest kit, trying to play with different Rest API web services for Twitter. I can login successfully using TWTRLogInButton having session object with authTokenSecret,authToken and other values. When I try to get user timeline, I always get failure response in return as:

{"errors":[{"code":215,"message":"Bad Authentication data."}]}

完整的错误日志是:

E restkit.network:RKObjectRequestOperation.m:297 Object request failed: Underlying HTTP request operation failed with error: Error Domain=org.restkit.RestKit.ErrorDomain Code=-1011 "Expected status code in (200-299), got 400" UserInfo=0x1780f6f80 {NSLocalizedRecoverySuggestion={"errors":[{"code":215,"message":"Bad Authentication data."}]}, NSErrorFailingURLKey=https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p, AFNetworkingOperationFailingURLRequestErrorKey=<NSMutableURLRequest: 0x178202740> { URL: https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p }, AFNetworkingOperationFailingURLResponseErrorKey=<NSHTTPURLResponse: 0x1702271e0> { URL: https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p } { status code: 400, headers {
    "Content-Encoding" = gzip;
    "Content-Length" = 87;
    "Content-Type" = "application/json;charset=utf-8";
    Date = "Wed, 01 Apr 2015 09:46:42 GMT";
    Server = "tsa_a";
    "Strict-Transport-Security" = "max-age=631138519";
    "x-connection-hash" = 4c123a59a023cd86b2e9a3e9fc84cd7b;
    "x-response-time" = 4;
} }, NSLocalizedDescription=Expected status code in (200-299), got 400}


2015-04-01 14:47:13.223 TwitterIntegration[1086:60b] I restkit.network:RKHTTPRequestOperation.m:154 GET 'https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p'
2015-04-01 14:47:13.225 TwitterIntegration[1086:60b] E restkit.network:RKHTTPRequestOperation.m:178 GET 'https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p' (400 Bad Request) [0.0013 s]: Error Domain=org.restkit.RestKit.ErrorDomain Code=-1011 "Expected status code in (200-299), got 400" UserInfo=0x1780f6f80 {NSLocalizedRecoverySuggestion={"errors":[{"code":215,"message":"Bad Authentication data."}]}, NSErrorFailingURLKey=https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p, AFNetworkingOperationFailingURLRequestErrorKey=<NSMutableURLRequest: 0x178202740> { URL: https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p }, AFNetworkingOperationFailingURLResponseErrorKey=<NSHTTPURLResponse: 0x1702271e0> { URL: https://api.twitter.com/1.1/statuses/user_timeline.json?user_id=3116882322&count=2&screen_name=ann_10p } { status code: 400, headers {
    "Content-Encoding" = gzip;
    "Content-Length" = 87;
    "Content-Type" = "application/json;charset=utf-8";
    Date = "Wed, 01 Apr 2015 09:46:42 GMT";
    Server = "tsa_a";
    "Strict-Transport-Security" = "max-age=631138519";
    "x-connection-hash" = 4c123a59a023cd86b2e9a3e9fc84cd7b;
    "x-response-time" = 4;
} }, NSLocalizedDescription=Expected status code in (200-299), got 400}

代码:

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    [self addLoginButton];

}

-(void) addLoginButton
{
    TWTRLogInButton *logInButton = [TWTRLogInButton buttonWithLogInCompletion:^(TWTRSession *session, NSError *error) {
        // play with Twitter session


        if(session)
        {
            NSLog(@"logged in success! with session : %@", session);
            [Global sharedInstance].session = session;
            [self requestUserTimeline];
        }
        else
        {
            NSLog(@"session is null");

        }

    }];
    logInButton.center = self.view.center;
    [self.view addSubview:logInButton];

}

-(void) requestUserTimeline
{
    RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[UserTimeline class]];
    [mapping addAttributeMappingsFromDictionary:@{
                                                  @"text":   @"tweetText",
                                                  @"favorited":     @"favourited",
                                                  @"created_at":        @"createdAt",
                                                  @"user.name":        @"name",
                                                  @"id":        @"tweetID",
                                                  @"user.profile_image_url":  @"profileImageURL"
                                                  }];

    NSIndexSet *statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful); // Anything in 2xx
    RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping pathPattern:nil keyPath:nil statusCodes:statusCodes];
    NSString *params = [NSString stringWithFormat:@"?user_id=3116882322&count=2&screen_name=ann_10p",[Global sharedInstance].session.userID,[Global sharedInstance].session.userName];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[@"https://api.twitter.com/1.1/statuses/user_timeline.json" stringByAppendingString:params]]];
    [request setHTTPMethod:@"GET"];
    RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc] initWithRequest:request responseDescriptors:@[responseDescriptor]];
    [operation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *result) {
        UserTimeline *timeline = [result firstObject];
        NSLog(@"Mapped the article: %@", timeline);
    } failure:^(RKObjectRequestOperation *operation, NSError *error) {
        NSLog(@"Failed with error: %@", [error localizedDescription]);
    }];
    [operation start];
}

请帮我调试这个问题.谢谢.

Please help me in debugging this problem. Thanks.

推荐答案

在试用 Fabric SDK 后,我成功地集成了它.我得出了一些结论,想与大家分享.

After experimenting with Fabric SDK, I was successful in its integration. I came along with some conclusions, and want to share with you guys.

1) 当您第一次成功登录推特时,已经为用户创建了一个 TWTRSession 会话.即使您关闭应用程序并重新打开它,它也会持续.

1) When you first time login the twitter successfully, a session of TWTRSession has been created for user. It lasts even after you close the app and reopen it.

2) 如果已经为您创建了会话,并且您尝试登录获取另一个会话对象而没有注销,则会返回身份验证错误.

2) If session has already been created for you, and you try to login getting another session object without logging out, authentication error will be returned.

3) 您可以使用以下方法检查会话是否存在:

3) You can check if session exists or not using:

if([[Twitter sharedInstance] session])
{
   NSLog(@"session already present!!!");
   NSLog(@"signed in as %@", [[[Twitter sharedInstance] session] userName]);
}
else
{
NSLog(@"you need to login!!");
}

4) 我会推荐使用

[[Twitter sharedInstance] logInWithCompletion:^(TWTRSession *session, NSError *error)];

代替:

[TWTRLogInButton buttonWithLogInCompletion:^(TWTRSession *session, NSError *error)];

仅当您确定没有会话时才使用 Twitter 的登录按钮当前存在.

5) 如果 Twitter 的身份验证真的让您感到不舒服,请卸载该应用程序并尝试全新安装.这是最后的解决方案!

5) If Twitter's authentication is really teasing you up, uninstall the app and try with fresh install. This is last solution!

6) 要退出会话,请使用 [[Twitter sharedInstance] logOut];

6) To logout from session, use [[Twitter sharedInstance] logOut];

编码部分:

我假设您已经按照 Fabric mac 应用程序执行了所有步骤.

首先登录用户,然后提出时间线请求.

First login user, then make timeline request.

-(void) loginUserToTwitter
{
    if([[Twitter sharedInstance] session])
    {
        NSLog(@"session already present!!!");
        NSLog(@"signed in as %@", [[[Twitter sharedInstance] session] userName]);
        [self getUserTimeline];
    }
    else
    {
        NSLog(@"session not found. Make new request!");

        [[Twitter sharedInstance] logInWithCompletion:^(TWTRSession *session, NSError *error) {

            if(error)
                NSLog(@"error occurred... %@",error.localizedDescription);
            else
            {
                NSLog(@"Successfully logged in with session :%@",session);
               [self getUserTimeline];
            }

        }];
    }

}

-(void) getUserTimeline
{
    NSURLRequest *request = [[[Twitter sharedInstance] APIClient] URLRequestWithMethod:@"GET" URL:@"https://api.twitter.com/1.1/statuses/user_timeline.json"
       parameters:@{@"userid": [Twitter sharedInstance].session.userID,
       @"count" : @"5",
        @"screen_name" : [Twitter sharedInstance].session.userName} error:nil];

    NSURLResponse *response;
    NSError *error;
    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

    if(!data)
    {
        NSLog(@"error....: %@",error.localizedDescription);
    }
    else
    {
        NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@",string);

        [twitterResponse removeAllObjects];

        NSArray *arrayRep = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
        twitterResponse = [NSMutableArray arrayWithArray:[TWTRTweet tweetsWithJSONArray:arrayRep]];

        [_tableView reloadData];
    }
}

我更喜欢 Twitter SDK 的方法来使用 [TWTRTweet tweetsWithJSONArray:arrayRep] 而不是 Restkit 提取推文.这里的事情会很容易处理.

I will prefer Twitter SDK's method to extract tweets using [TWTRTweet tweetsWithJSONArray:arrayRep] instead of Restkit. Things will be really easy to handle here.

以 Twitter 的标准样式显示推文:

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    // Setup tableview
    self.tableView.estimatedRowHeight = 150;
    self.tableView.rowHeight = UITableViewAutomaticDimension; // Explicitly set on iOS 8 if using automatic row height calculation
    self.tableView.allowsSelection = NO;
    [self.tableView registerClass:[TWTRTweetTableViewCell class] forCellReuseIdentifier:@"TweetCell"];

}

#pragma mark - Tableview Methods

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return twitterResponse.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellID = @"TweetCell";

    TWTRTweetTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID forIndexPath:indexPath];

    TWTRTweet *tweet = twitterResponse[indexPath.row];
    [cell configureWithTweet:tweet];

    return cell;
}

// Calculate the height of each row. Must to implement
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

        TWTRTweet *tweet = twitterResponse[indexPath.row];
        return [TWTRTweetTableViewCell heightForTweet:tweet width:CGRectGetWidth(self.view.bounds)];

}

注意:

此处下载Fabric SDK.您必须输入电子邮件地址.他们会通过电子邮件向您发送一些下载链接,您必须遵循一些步骤.Fabric Mac App 将让您完全配置 xcode 项目.

Download Fabric SDK from here. You will have to enter email address. They will email you some link for download, you have to follow some steps. Fabric Mac App will have you to completely configure xcode project.

希望有帮助!

参考:

推特登录

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Cannonball 示例项目

这篇关于使用 Fabric SDK iOS 访问 Twitter 用户时间线的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

06-26 19:51