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Android Android Lists and Adapters (2015) Updating the Data Model Using JSONArray

Posted by Adlight Sibanda
Adlight Sibanda
5,701 Points

json Log.i('CodeChallenge")

Finally, write a 'for' loop that loops through jsonShows. In each step of the loop, use getJSONObject(int index) to get a JSONObject from the array. Then use the Log.i() method (with "CodeChallenge" as the tag) to write the show title.

CodeChallenge.java 
// JSONObject 'jsonData' was loaded from data.json
JSONArray jsonShows = jsonData.getJSONArray("Shows");

for (int i = 0; i < jsonShows.length(); i++) 
    {
                    JSONObject show = jsonShows.getJSONObject(i);
                    String title = show.getString("title");
                    Log.i("CodeChallenge", title);                           
    }
data.json 
{
    "name":"Netflix Playlist",
    "shows":[
        {
            "title":"Doctor Who",
            "season":8,
            "episode":3
        },
        {
            "title":"Arrow",
            "season":1,
            "episode":10
        },
        {
            "title":"Portlandia",
            "season":4,
            "episode":5
        }
    ]
}

3 Answers

Nicolas Hampton
Nicolas Hampton
44,638 Points
Nicolas Hampton
Nicolas Hampton
44,638 Points

OMG, I stared at this perfect code for a long time. When you call the JSONArray shows, you accidentally capitalized the s. Fix that, you're golden.

Nic

jenyufu
jenyufu
3,311 Points
jenyufu
jenyufu
3,311 Points

Here, I fixed your code and explained it below.

JSONArray jsonShows = jsonData.getJSONArray("shows"); //<-- the reason why yours didn't work was because you put ("Shows") instead of ("shows") here.
for (int i = 0; i < jsonShows.length(); i++)
{
  JSONObject jsonShow = jsonShows.getJSONObject(i);
    String title = jsonShow.getString("title");
    Log.i("CodeChallenge", title);
}
Adlight Sibanda
Adlight Sibanda
5,701 Points
Adlight Sibanda
Adlight Sibanda
5,701 Points

hi Nic

Thank you for taking your time to help me with the challenge, unfortunately i made the changes but they are passing not. It`s reporting a syntax error.

for (int i = 0; i < jsonshows.length(); i++) { JSONObject show = jsonShows.getJSONObject(i); String title = show.getString("title"); Log.i("CodeChallenge", title);
}

S.O.S

thanx

Adlight Sibanda
Adlight Sibanda
5,701 Points

ooh Nic i finally got it thanx a tonne!!

Nicolas Hampton
Nicolas Hampton
44,638 Points

Awesome, glad you got it!

Bhekimpilo Ncube
Bhekimpilo Ncube
4,157 Points

How did you do it Adlight, Im stuck here for ages..

Bhekimpilo Ncube
Bhekimpilo Ncube
4,157 Points

Nic?, any one???

jenyufu
jenyufu
3,311 Points
jenyufu
jenyufu
3,311 Points

check this here: https://teamtreehouse.com/forum/what-is-wrong-with-my-codes-i-have-been-stuck-for-a-long-time-on-challenge-2-of-2

dun't know why it works, it seems very different from the other answers but oh well.