Parse JSON as object using GSON

Question

I've my JSON like this:

{
  "shops": [
    {
          "id": "831",
          "name": "18 and East",
          "categories": [
            "1",
            "12",
            "13"
          ],
          "locations": [
            {
              "lat": "53.403297",
              "lng": "-2.978689",
              "address": "Bold Street Liverpoool, L1 4EA"
            },
            {
              "lat": "51.590111",
              "lng": "-0.146134",
              "address": "58 Fortis Green Road, London, N10 3HN"
            },
            {
              "lat": "53.406738",
              "lng": "-2.981188",
              "address": "137-139 Market Square  Liverpool"
            }
          ],
          "image": "5574-18-and-East-sale.jpg"
        }
    ....

And I have Shop.java, Response.java and Locations.java like this (this files gets the data as objects):

Now I want to parse the address into following file, I tried several ways but I'm not able to parse the address from array. And I'm able to parse id, name and image.

can someone helpme to solve this problem?

Don't know if helps, but instead of ArrayList I think Gson expects List instead — Hector Sanchez, Sep 11 '13 at 16:33
I copy your code - and debug it - everything works! I have parsed address. Check link and look at bottom in debugable panel [link](http://rendergame.wordpress.com/?attachment_id=358) — Dariusz Mazur, Sep 11 '13 at 16:52
The above code works fine. I want to know how to parse address in hashmap. Please provide some code — Kabe, Sep 11 '13 at 17:40
@daro2189: In your link, I couldn't see that you are parsing address. Can you provide detailed picture or code? — Kabe, Sep 11 '13 at 17:43
Could you be more specyfic - which address you want to parse to hashmap? I see that you create list with hashmap, and you add some items into it — Dariusz Mazur, Sep 11 '13 at 17:50
I want to parse address in locations in json string. **{ "lat": "53.406738", "lng": "-2.981188", "address": "137-139 Market Square Liverpool" }** See my post above. — Kabe, Sep 11 '13 at 18:06

Dariusz Mazur · Accepted Answer · 2013-09-11T19:16:32.020

I attach my code:

Add your class Location.class, Shop.class and Response.class - no changes

//Code which parse json put it in your "doInBackground"
try {
        String str = getString(R.string.data);
        Gson gson = new Gson();
        Response response = gson.fromJson(str, Response.class);

        if(response != null){
           //TODO response is not null
           Log.e("", "ADDRESS: " + response.shops.get(0).getLocations().get(0).address);
        }

} catch (Exception e){
    e.printStackTrace();
}

//in strings.xml I addes json string which I parsed

<string name="data">
    {
    \"shops\": [
    {
    \"id\": \"831\",
    \"name\": \"18 and East\",
    \"categories\": [
    \"1\",
    \"12\",
    \"13\"
    ],
    \"locations\": [
    {
    \"lat\": \"53.403297\",
    \"lng\": \"-2.978689\",
    \"address\": \"Bold Street Liverpoool, L1 4EA\"
    },
    {
    \"lat\": \"51.590111\",
    \"lng\": \"-0.146134\",
    \"address\": \"58 Fortis Green Road, London, N10 3HN\"
    },
    {
    \"lat\": \"53.406738\",
    \"lng\": \"-2.981188\",
    \"address\": \"137-139 Market Square  Liverpool\"
    }
    ],
    \"image\": \"5574-18-and-East-sale.jpg\"
    }]}

</string>

After parsing in response exists parsed 'address', please check it :)

My log: 09-11 20:16:17.765: D/(2610): ADDRESS: Bold Street Liverpoool, L1 4EA

============= Update Add this function into shop class:

public ArrayList<String> getShopAddress(){
   ArrayList<String> shoopAddress = new ArrayList<String>();
   if(locations == null){
     //there is no address
     return shoopAddress;
   }

   for(Locations l : locations){
      final String addr = l. getAddress();
      if(addr != null)
        shoopAddress.add(addr);
    }
   return shoopAddress;
}

Now you can get all address which are in shops by calling:

response.shops.get(0).getShopAddress(); //and it returns all address (as strings list) assigned to shop

Thanks for your answer. But with this code:response.shops.get(0).getLocations().get(0).address I'm only able to get one address only. but I want to get all addresses related to the shops. Note: one shop has more than one address. — Kabe, Sep 11 '13 at 18:53
Yap, this is what I asked for. but it's return several error at: ArrayList
and shoopAddress.add(addr); — Kabe, Sep 11 '13 at 19:15
Check right now - I corrected. Error is because instead of "string" list I created address list — Dariusz Mazur, Sep 11 '13 at 19:17
hi daro2189, I've one more question. how could i group lat, lng and address — Kabe, Sep 11 '13 at 19:51
What do you mean - group lat, lng and address? Would you like to group it as address?? — Dariusz Mazur, Sep 11 '13 at 19:59
Please check and answer this question: http://stackoverflow.com/questions/18750314/parse-json-objectslat-and-lng-in-googlemap-as-markers — Kabe, Sep 11 '13 at 20:11

Parse JSON as object using GSON

1 Answers1