0

我正在尝试将保存在 UserDefaults 上的 twitter 提要传递给 WebService。WebService 有效，因为我在传递来自 Facebook 的提要时使用它。

- (void) fetchedTwitterFeeds: (NSString *)screenname{
STTwitterAPI * twit = [STTwitterAPI twitterAPIAppOnlyWithConsumerKey:twitter_id consumerSecret:twitter_secret];

if ([[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_SCREEN_NAME] !=nil) {
    screenname = [NSString stringWithFormat:@"%@", [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_SCREEN_NAME]];
}

[twit verifyCredentialsWithSuccessBlock:^(NSString * username){
    [twit getUserTimelineWithScreenName:screenname successBlock:^(NSArray * statuses){
        self.feeds = [NSMutableArray arrayWithArray:statuses];
        NSLog(@"Twitter Feeds Login: %@", feeds);

        NSLog(@"Session Token: %@", [[NSUserDefaults standardUserDefaults] valueForKey:SESSION_TOKEN]);
        NSLog(@"Track ID: %d", track_id);
        NSLog(@"Tweets: %@", [feeds valueForKey:@"text"]);
        NSLog(@"Created at: %@", [feeds valueForKey:@"created_at"]);
        NSLog(@"Country: %@", [[feeds valueForKey:@"place"] valueForKey:@"country"]);
        NSLog(@"Place Name: %@", [[feeds valueForKey:@"place"] valueForKey:@"full_name"]);
        NSLog(@"Sample Lat: -75.14310264");
        NSLog(@"Sample Long: 40.05701649");
        NSLog(@"Media URL: %@", [[[feeds valueForKey:@"entities"] valueForKey:@"media"] valueForKey:@"media_url"]);
        NSLog(@"Provider Name: %@", TWITTER_PROVIDER);

        //Saving Feeds
        if ([feeds valueForKey:@"text"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:[feeds valueForKey:@"text"] forKey:TWITTER_FEED_TWEETS_KEY];
        else[[NSUserDefaults standardUserDefaults] setObject:@"No Tweets" forKey:TWITTER_FEED_TWEETS_KEY];

        if ([feeds valueForKey:@"created_at"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:[feeds valueForKey:@"created_at"] forKey:TWITTER_FEED_DATE_CREATED_KEY];
        else[[NSUserDefaults standardUserDefaults] setObject:@"No Date Created" forKey:TWITTER_FEED_DATE_CREATED_KEY];

        if ([feeds valueForKey:@"created_at"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:[[feeds valueForKey:@"place"] valueForKey:@"country"] forKey:TWITTER_FEED_COUNTRY_KEY];
        else[[NSUserDefaults standardUserDefaults] setObject:@"No Country" forKey:TWITTER_FEED_COUNTRY_KEY];

        if ([feeds valueForKey:@"created_at"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:[[feeds valueForKey:@"place"] valueForKey:@"full_name"] forKey:TWITTER_FEED_PLACE_NAME_KEY];
        else[[NSUserDefaults standardUserDefaults] setObject:@"No Place Name" forKey:TWITTER_FEED_PLACE_NAME_KEY];

        if ([feeds valueForKey:@"created_at"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:@"-75.14310264" forKey:TWITTER_FEED_LATITUDE_KEY];

        if ([feeds valueForKey:@"created_at"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:@"40.05701649" forKey:TWITTER_FEED_LONGITUDE_KEY];

        if ([feeds valueForKey:@"created_at"] !=nil)[[NSUserDefaults standardUserDefaults] setObject:[[[feeds valueForKey:@"entities"] valueForKey:@"media"] valueForKey:@"media_url"] forKey:TWITTER_FEED_MEDIA_URL_KEY];
        else[[NSUserDefaults standardUserDefaults] setObject:@"No Media " forKey:TWITTER_FEED_MEDIA_URL_KEY];

    }errorBlock:^(NSError * error){
        NSLog(@"%@", error.debugDescription);
    }];
}errorBlock:^(NSError * error){
    NSLog(@"%@", error.debugDescription);
}];
}

这是我在 NSLog(@"Twitter Feeds Login: %@", feeds) 时得到的推特提要：

    2014-08-19 15:42:10.497 backtrack[11009:60b] Twitter Feeds Login: (
    {
    contributors = "<null>";
    coordinates = "<null>";
    "created_at" = "Tue Aug 19 04:50:45 +0000 2014";
    entities =         {
        hashtags =             (
        );
        media =             (
                            {
                "display_url" = "pic.twitter.com/kKBrsjf4GO";
                "expanded_url" = "http://twitter.com/calsofer/status/501592079156273152/photo/1";
                id = 501592077608562689;
                "id_str" = 501592077608562689;
                indices =                     (
                    5,
                    27
                );
                "media_url" = "http://pbs.twimg.com/media/BvYDVkgCMAEBucu.png";
                "media_url_https" = "https://pbs.twimg.com/media/BvYDVkgCMAEBucu.png";
                sizes =                     {
                    large =                         {
                        h = 120;
                        resize = fit;
                        w = 120;
                    };
                    medium =                         {
                        h = 120;
                        resize = fit;
                        w = 120;
                    };
                    small =                         {
                        h = 120;
                        resize = fit;
                        w = 120;
                    };
                    thumb =                         {
                        h = 120;
                        resize = crop;
                        w = 120;
                    };
                };
                type = photo;
                url = "http://t.co/kKBrsjf4GO";
            }
        );
        symbols =             (
        );
        urls =             (
        );
        "user_mentions" =             (
        );
    };
    "extended_entities" =         {
        media =             (
                            {
                "display_url" = "pic.twitter.com/kKBrsjf4GO";
                "expanded_url" = "http://twitter.com/calsofer/status/501592079156273152/photo/1";
                id = 501592077608562689;
                "id_str" = 501592077608562689;
                indices =                     (
                    5,
                    27
                );
                "media_url" = "http://pbs.twimg.com/media/BvYDVkgCMAEBucu.png";
                "media_url_https" = "https://pbs.twimg.com/media/BvYDVkgCMAEBucu.png";
                sizes =                     {
                    large =                         {
                        h = 120;
                        resize = fit;
                        w = 120;
                    };
                    medium =                         {
                        h = 120;
                        resize = fit;
                        w = 120;
                    };
                    small =                         {
                        h = 120;
                        resize = fit;
                        w = 120;
                    };
                    thumb =                         {
                        h = 120;
                        resize = crop;
                        w = 120;
                    };
                };
                type = photo;
                url = "http://t.co/kKBrsjf4GO";
            }
        );
    };
    "favorite_count" = 0;
    favorited = 0;
    geo = "<null>";
    id = 501592079156273152;
    "id_str" = 501592079156273152;
    "in_reply_to_screen_name" = "<null>";
    "in_reply_to_status_id" = "<null>";
    "in_reply_to_status_id_str" = "<null>";
    "in_reply_to_user_id" = "<null>";
    "in_reply_to_user_id_str" = "<null>";
    lang = en;
    place =         {
        attributes =             {
        };
        "bounding_box" =             {
            coordinates =                 (
                                    (
                                            (
                        "-8.662663",
                        "49.1626564"
                    ),
                                            (
                        "1.768926",
                        "49.1626564"
                    ),
                                            (
                        "1.768926",
                        "60.86165"
                    ),
                                            (
                        "-8.662663",
                        "60.86165"
                    )
                )
            );
            type = Polygon;
        };
        "contained_within" =             (
        );
        country = "United Kingdom";
        "country_code" = GB;
        "full_name" = "United Kingdom";
        id = 6416b8512febefc9;
        name = "United Kingdom";
        "place_type" = country;
        url = "https://api.twitter.com/1.1/geo/id/6416b8512febefc9.json";
    };
    "possibly_sensitive" = 0;
    "retweet_count" = 0;
    retweeted = 0;
    source = "<a href=\"http://twitter.com\" rel=\"nofollow\">Twitter Web Client</a>";
    text = "Test http://t.co/kKBrsjf4GO";
    truncated = 0;
    user =         {
        "contributors_enabled" = 0;
        "created_at" = "Sat Jan 29 11:30:22 +0000 2011";
        "default_profile" = 0;
        "default_profile_image" = 0;
        description = "You can't just grow a sexy beard. You either have one, or you don't..:";
        entities =             {
            description =                 {
                urls =                     (
                );
            };
        };
        "favourites_count" = 0;
        "follow_request_sent" = "<null>";
        "followers_count" = 17;
        following = "<null>";
        "friends_count" = 47;
        "geo_enabled" = 1;
        id = 244472426;
        "id_str" = 244472426;
        "is_translation_enabled" = 0;
        "is_translator" = 0;
        lang = en;
        "listed_count" = 0;
        location = "";
        name = "Christopher Fuertes";
        notifications = "<null>";
        "profile_background_color" = 1A1B1F;
        "profile_background_image_url" = "http://pbs.twimg.com/profile_background_images/558638885/559647_3164538518462_1415356240_32122022_1669491008_n.jpg";
        "profile_background_image_url_https" = "https://pbs.twimg.com/profile_background_images/558638885/559647_3164538518462_1415356240_32122022_1669491008_n.jpg";
        "profile_background_tile" = 1;
        "profile_banner_url" = "https://pbs.twimg.com/profile_banners/244472426/1352679509";
        "profile_image_url" = "http://pbs.twimg.com/profile_images/2838158026/56ed90e6ccc6c35cc41a1a8a41db312e_normal.jpeg";
        "profile_image_url_https" = "https://pbs.twimg.com/profile_images/2838158026/56ed90e6ccc6c35cc41a1a8a41db312e_normal.jpeg";
        "profile_link_color" = 960E20;
        "profile_sidebar_border_color" = FFFFFF;
        "profile_sidebar_fill_color" = 252429;
        "profile_text_color" = 666666;
        "profile_use_background_image" = 1;
        protected = 0;
        "screen_name" = calsofer;
        "statuses_count" = 1;
        "time_zone" = "Kuala Lumpur";
        url = "<null>";
        "utc_offset" = 28800;
        verified = 0;
    };
}
)

这是我将其传递给 Web 服务的代码：

 NSLog(@"UserDefault Tweets: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_TWEETS_KEY]);
NSLog(@"UserDefault Date Created: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_DATE_CREATED_KEY]);
NSLog(@"UserDefault Country: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_COUNTRY_KEY]);
NSLog(@"UserDefault Place Name: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_PLACE_NAME_KEY]);
NSLog(@"UserDefault Latitude: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_LATITUDE_KEY]);
NSLog(@"UserDefault Longtitude: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_LONGITUDE_KEY]);
NSLog(@"UserDefault Media URL: %@", [[NSUserDefaults standardUserDefaults] objectForKey:TWITTER_FEED_MEDIA_URL_KEY]);

NSDictionary * dict = [NSDictionary dictionaryWithObject:[NSArray arrayWithObjects: [[NSUserDefaults standardUserDefaults] valueForKey:SESSION_TOKEN], [NSString stringWithFormat:@"%d", track_id], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_TWEETS_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_DATE_CREATED_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_COUNTRY_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_PLACE_NAME_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_LATITUDE_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_LONGITUDE_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_MEDIA_URL_KEY],TWITTER_PROVIDER, nil]
                                                  forKey:[NSArray arrayWithObjects:SESSION_TOKEN, @"track_id", @"message",@"date_created",@"country",@"place_name",@"latitude",@"longitude",@"media_url",@"provider_name", nil]];

[webService postRequestFromUrl:[NSString stringWithFormat:@"%@%@", ROOT_SERVER_URL, SAVE_DATA_FEEDS] withDictionary:dict];

但我这样做时出错了。错误是：

在此处输入图像描述

4

2 回答 2

2

创建时，dict您应该使用dictionaryWithObjects:forKeys:，而不是dictionaryWithObject:forKey: - 您指定 anNSArray作为您的密钥，正如异常告诉您的那样，它不是字符串。

你应该有 -

NSDictionary * dict = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects: [[NSUserDefaults standardUserDefaults] valueForKey:SESSION_TOKEN], [NSString stringWithFormat:@"%d", track_id], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_TWEETS_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_DATE_CREATED_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_COUNTRY_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_PLACE_NAME_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_LATITUDE_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_LONGITUDE_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_MEDIA_URL_KEY],TWITTER_PROVIDER, nil]
                                                  forKeys:[NSArray arrayWithObjects:SESSION_TOKEN, @"track_id", @"message",@"date_created",@"country",@"place_name",@"latitude",@"longitude",@"media_url",@"provider_name", nil]];

[NSUserDefaults standardUserDefaults]如果您只是设置一个变量并引用它而不是standardUserDefaults重复调用该方法，那么您的代码也会更容易阅读

于 2014-08-19T12:07:18.777 回答
0

的成员 [NSUserDefaults standardUserDefaults] valueForKey:WHATEVER_KEY_HERE] 是数组，而不仅仅是字符串。这在使用字典时很好，但在序列化为 JSON 格式时不起作用。

因此，您必须为行中的每个对象从数组中取出字符串：

[NSArray arrayWithObjects: [[NSUserDefaults standardUserDefaults] valueForKey:SESSION_TOKEN], [NSString stringWithFormat:@"%d", track_id], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_TWEETS_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_DATE_CREATED_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_COUNTRY_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_PLACE_NAME_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_LATITUDE_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_LONGITUDE_KEY], [[NSUserDefaults standardUserDefaults] valueForKey:TWITTER_FEED_MEDIA_URL_KEY],TWITTER_PROVIDER, nil]

例子：

NSString* sesionToken = [[[NSUserDefaults standardUserDefaults] valueForKey:SESSION_TOKEN] objectAtIndex:0]
于 2014-08-19T11:43:59.900 回答