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

Posted by Radu Stanciu
Radu Stanciu
3,156 Points

How do i use the string value here?

Do i have to convert it to a String?

Or how am i supposed to take that value if i don't gave a method like: jsonShows.setTitle?

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

for (int i=0;i<jsonShows.length();i++)
{
  JSONObject title = jsonShows.getJSONObject(i);
  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
        }
    ]
}

1 Answer

Hariidaran Tamilmaran
seal-mask
.a{fill-rule:evenodd;}techdegree
Hariidaran Tamilmaran
iOS Development Techdegree Student 19,305 Points
Hariidaran Tamilmaran
.a{fill-rule:evenodd;}techdegree
Hariidaran Tamilmaran
iOS Development Techdegree Student 19,305 Points

The variable title, is a JSONObject, not a String. That's likely to cause an error in your app. So what you should actually do this:

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

for (int i=0; i<jsonShows.length(); i++) {
    // jsonShows is actually an array of objects, not strings
    JSONObject show = jsonShows.getJSONObject(i);

    // You can now declare a variable holding the show's name, or just type it in
    String title = show.getString("title");

    Log.i("CodeChallenge", title);
}

And it's ok, you don't have to be a genius to remember this. I actually had to refer to my project to help you in your problem.

Hope this helps!

Yours truly, Hariidaran