500KB json file parsed in Android environment

I need to find a faster solution to parse a json file with 500KB. the structure is something like

{
    "response": {
        "code": 0,
        "msg": "OK",
        "searchparameter": {
            "bikes": { … },
            "cars": { 
                 "a":{
                     values[{...}]
                  },
                 "b":{},
                 "c":{},
                 "d":{},
                  "e":{},
           ...

            }
        }
   开发者_高级运维}
}

I tried gson.fromJson(jsontxt, Response.class), but it causes me like more than 5 mins to parse.. Is there any solutions that is suitable for me? How can I do JSONReader by gson in this case? and would it be helpful? any helps would be appreciated. thanks a lot!!

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Try using a streaming API:

• For Gson, https://sites.google.com/site/gson/streaming
• Or switch to Jackson: Parsing huge JSON object in Android?

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you can use Gson itself but to make it useful try it in using Asyntask so you can tell the user to wait by showing progressDialog