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Parsing JSON Feed iOS 5

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By User



I'm pretty new to iOS development, and I'm wanting to parse the values of a JSON twitter feed, so I can pull them through into a tableView.





So far, I have the information from the feed logging into my console bar as a string, but I'm stuck with where to go next.





My current code is:







- (void)loadTweets

{

NSString *twitterURL = [NSString stringWithFormat:@"https://api.twitter.com/1/statuses/user_timeline.json?screen_name=evostikleague&count=%d", tweetCellCount];    

NSURL *fullURL = [NSURL URLWithString:twitterURL];



NSError *error = nil;

NSData *dataURL = [NSData dataWithContentsOfURL:fullURL options:0 error:&error];



NSString *strResult = [[NSString alloc] initWithData:dataURL encoding:NSUTF8StringEncoding];



NSLog(@"Everything:\n%@", strResult);

}







Which gives me the raw data from the feed:







[{"id_str":"171930825225551872","coordinates":null,"in_reply_to_status_id_str":null,"place":null,"possibly_sensitive":false,"geo":null,"in_reply_to_user_id_str":null,"favorited":false,"created_at":"Tue Feb 21 12:14:37 +0000 2012","user":{"id":148344608,"profile_background_image_url_https":"https:\/\/si0.twimg.com\/images\/themes\/theme1\/bg.png","created_at":"Wed May 26 13:24:44 +0000 2010","profile_image_url":"http:\/\/a2.twimg.com\/profile_images\/1041551481\/twitter_logo_normal.jpg","profile_text_color":"333333","time_zone":null,"following":null,"followers_count":2441,"profile_sidebar_border_color":"C0DEED","screen_name":"evostikleague","verified":false,"utc_offset":null,"default_profile_image":false,"location":"UK","name":"The Evo-Stik League","notifications":null,"profile_background_tile":false,"favourites_count":0,"id_str":"148344608","profile_sidebar_fill_color":"DDEEF6","contributors_enabled":false,"protected":false,"show_all_inline_media":false,"profile_image_url_https":"https:\/\/si0.twimg.com\/profile_images\/1041551481\/twitter_logo_normal.jpg","profile_background_color":"C0DEED","description":"","default_profile":true,"lang":"en","is_translator":false,"profile_background_image_url":"http:\/\/a0.twimg.com\/images\/themes\/theme1\/bg.png","statuses_count":1296,"geo_enabled":false,"profile_link_color":"0084B4","follow_request_sent":null,"friends_count":178,"listed_count":43,"profile_use_background_image":true,"url":"http:\/\/www.evostikleague.co.uk\/"},"in_reply_to_screen_name":null,"in_reply_to_user_id":null,"retweeted":false,"in_reply_to_status_id":null,"contributors":null,"truncated":false,"source":"\u003Ca href=\"http:\/\/twitterfeed.com\" rel=\"nofollow\"\u003Etwitterfeed\u003C\/a\u003E","id":171930825225551872,"retweet_count":1,"text":"The Evo-Stik Challenge: League announce sponsored bike ride from Wembley to Blackpool http:\/\/t.co\/23i8gC2N"},{"id_str":"171915587491078144","coordinates":null,"in_reply_to_status_id_str":null,"place":null,"possibly_sensitive":false,"geo":null,"in_reply_to_user_id_str":null,"favorited":false,"created_at":"Tue Feb 21 11:14:04 +0000 2012","user":{"id":148344608,"profile_background_image_url_https":"https:\/\/si0.twimg.com\/images\/themes\/theme1\/bg.png","created_at":"Wed May 26 13:24:44 +0000 2010","profile_image_url":"http:\/\/a2.twimg.com\/profile_images\/1041551481\/twitter_logo_normal.jpg","profile_text_color":"333333","time_zone":null,"following":null,"followers_count":2441,"profile_sidebar_border_color":"C0DEED","screen_name":"evostikleague","verified":false,"utc_offset":null,"default_profile_image":false,"location":"UK","name":"The Evo-Stik League","notifications":null,"profile_background_tile":false,"favourites_count":0,"id_str":"148344608","profile_sidebar_fill_color":"DDEEF6","contributors_enabled":false,"protected":false,"show_all_inline_media":false,"profile_image_url_https":"https:\/\/si0.twimg.com\/profile_images\/1041551481\/twitter_logo_normal.jpg","profile_background_color":"C0DEED","description":"","default_profile":true,"lang":"en","is_translator":false,"profile_background_image_url":"http:\/\/a0.twimg.com\/images\/themes\/theme1\/bg.png","statuses_count":1296,"geo_enabled":false,"profile_link_color":"0084B4","follow_request_sent":null,"friends_count":178,"listed_count":43,"profile_use_background_image":true,"url":"http:\/\/www.evostikleague.co.uk\/"},"in_reply_to_screen_name":null,"in_reply_to_user_id":null,"retweeted":false,"in_reply_to_status_id":null,"contributors":null,"truncated":false,"source":"\u003Ca href=\"http:\/\/twitterfeed.com\" rel=\"nofollow\"\u003Etwitterfeed\u003C\/a\u003E","id":171915587491078144,"retweet_count":0,"text":"Gingerbreads look to consolidate top spot: Grantham Town update, by Graham Cowell http:\/\/t.co\/FREdshtm"},{"id_str":"171633185870979074","coordinates":null,"in_reply_to_status_id_str":null,"place":null,"possibly_sensitive":false,"geo":null,"in_reply_to_user_id_str":null,"favorited":false,"created_at":"Mon Feb 20 16:31:54 +0000 2012","user":{"id":148344608,"profile_background_image_url_https":"https:\/\/si0.twimg.com\/images\/themes\/theme1\/bg.png","created_at":"Wed May 26 13:24:44 +0000 2010","profile_image_url":"http:\/\/a2.twimg.com\/profile_images\/1041551481\/twitter_logo_normal.jpg","profile_text_color":"333333","time_zone":null,"following":null,"followers_count":2441,"profile_sidebar_border_color":"C0DEED","screen_name":"evostikleague","verified":false,"utc_offset":null,"default_profile_image":false,"location":"UK","name":"The Evo-Stik League","notifications":null,"profile_background_tile":false,"favourites_count":0,"id_str":"148344608","profile_sidebar_fill_color":"DDEEF6","contributors_enabled":false,"protected":false,"show_all_inline_media":false,"profile_image_url_https":"https:\/\/si0.twimg.com\/profile_images\/1041551481\/twitter_logo_normal.jpg","profile_background_color":"C0DEED","description":"","default_profile":true,"lang":"en","is_translator":false,"profile_background_image_url":"http:\/\/a0.twimg.com\/images\/themes\/theme1\/bg.png","statuses_count":1296,"geo_enabled":false,"profile_link_color":"0084B4","follow_request_sent":null,"friends_count":178,"listed_count":43,"profile_use_background_image":true,"url":"http:\/\/www.evostikleague.co.uk\/"},"in_reply_to_screen_name":null,"in_reply_to_user_id":null,"retweeted":false,"in_reply_to_status_id":null,"contributors":null,"truncated":false,"source":"\u003Ca href=\"http:\/\/twitterfeed.com\" rel=\"nofollow\"\u003Etwitterfeed\u003C\/a\u003E","id":171633185870979074,"retweet_count":1,"text":"Chasetown unveil \u00a310k Makeover: Premier Division club won Evo-Stik Facilities Makeover competition http:\/\/t.co\/ywf74N9f"}]







I then want to bob this into an array, so I can increase the amount of returned results, and loop through and display them in a table.


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Comments

  1. Tips For AllFebruary 21, 2012 at 2:11 PM

    You'll find what you are looking for here - http://mobile.tutsplus.com/tutorials/iphone/iphone-json-twitter-api/

    ReplyDelete
  2. Tips For AllFebruary 21, 2012 at 2:11 PM

    In iOS 5 Apple finally made their JSON Parser public.

    Try looking at NSJSONSerialization

    Your code could look like this but I suggest reading the Docs first.

    NSArray* yourArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:someError]

    ReplyDelete
  3. Tips For AllFebruary 21, 2012 at 2:11 PM

    - (void)loadTweets
    {
    NSString *twitterURL = [NSString stringWithFormat:@"https://api.twitter.com/1/statuses/user_timeline.json?screen_name=evostikleague&count=%d", tweetCellCount];
    NSURL *fullURL = [NSURL URLWithString:twitterURL];

    NSError *error = nil;
    NSData *dataURL = [NSData dataWithContentsOfURL:fullURL options:0 error:&error];
    id result=[NSJSONSerialization JSONObjectWithData:dataURL options:
    NSJSONReadingMutableContainers error:&error];
    NSLog("JSON data:%@", result);
    //NSString *strResult = [[NSString alloc] initWithData:dataURL encoding:NSUTF8StringEncoding];

    //NSLog(@"Everything:\n%@", strResult);
    }


    Here you are :)

    ReplyDelete

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