How to read JSON variable that use number for its name, with GSON

Question

First, im a beginner in GSON so please bear with me.

I tried to read a JSON from this url :

https://gdata.youtube.com/feeds/api/videos?author=radityad

Answer 1

You need define several classes first of all:

MyGson

public class MyGson {
private String apiVersion;
private Data data;

public Data getData() {
    return data;
}
}

Data

public class Data {
private String updated;
private int totalItems = 0;
private int startIndex = 0;
private int itemsPerPage = 0;
private  List items;

public List getItems() {
    return items;
}
}

Item

 public class Item {
private String id;
private String uploaded;
private String updated;
private String uploader;
private String category;
private String title;
private String description;
private Map  content;

public Map getContent() {
    return content;
}
}

Take a look, your content is map where key is 1,2,3,4,5,6 ....

You can define Map content but since all your keys are integers..

So now you can extract any value you want:

Launcher

 ....
 Gson gson = new Gson();

    MyGson myGson = gson.fromJson(str, MyGson.class);

    List items = myGson.getData().getItems();

    if(items.size()>0){
        Item item = items.get(0);

        String myStr = item.getContent().get(1);

        System.out.println(myStr);
    }

Output:

rtsp://r6---sn-cg07lue6.c.youtube.com/CiILENy73wIaGQl1cubZZSUSXxMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp