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

STEPHEN MUSONDA
STEPHEN MUSONDA
2,146 Points
Posted by STEPHEN MUSONDA
STEPHEN MUSONDA
2,146 Points

For Loop Details

Where am I get it wrong? I cannot figure out what is wrong with my code?

CodeChallenge.java 
public static final String TAG = CodeChallenge.class.getSimpleName();
// JSONObject 'jsonData' was loaded from data.json
JSONArray jsonShows = jsonData.getJSONArray("shows");

for(int i = 0; jsonShows.length(); i++){
  JSONObject data = jsonShows.getJSONObject(i); 
  Log.i(TAG,  data.getString("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

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

You've got a good start on it but there are two issues. First you don't need to create the TAG constant. In fact it will cause trouble with the challenge compiler if you do. It's easier to just use the sting in the Log.i() call an leave it at that. The second is that you need to compare the length to i, because the comparison needs to be true or false, not a number.

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

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