How to handle null response for json array in android

Question

I got a json response as

 {
    "tasks": null,
    "projects": null

  }

how to check if the array has null values and handle the case??

Thanks:)

array means? you mean response null or particular field null? — SathishKumar
– SathishKumar, Commented Nov 28, 2013 at 6:20
@SathishKumar: Assume that "tasks" and "projects" are normally arrays, but in this example they are both set to null. — Robert Harvey
– Robert Harvey, Commented Nov 28, 2013 at 6:21
particular field.here tasks is json array.It returns the value null when there is no data. — user
– user, Commented Nov 28, 2013 at 6:21
Hi Can you Update The full String With Root This data coming from the Array Or Jsonobject — ishu
– ishu, Commented Nov 28, 2013 at 6:27

Community · Accepted Answer · 2017-05-23 11:49:42Z

2

Try this,

jsonObject.isNull("field-name")

Reference: JSON null handling and this.

edited May 23, 2017 at 11:49

CommunityBot

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answered Jan 13, 2014 at 8:41

VikramV

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Comments

ishu · Accepted Answer · 2013-11-28 06:41:54Z

0

Try This
=============
try {
        String url;
    JSONObject JsonData = new JSONObject("YOUR FULL JSONSTRING");
    JSONArray webData = JsonData.getJSONArray("YOUR ROOT NAME OF YOUR JSON RESPONSE");

    for(int i=0;i<webData.length();i++)
    {
        JSONObject TeampObj = webData.getJSONObject(i);
        if(TeampObj.getString("tasks").trim().length()>0)
        {
            //store data in arrylist or string array

        }
        if(TeampObj.getString("projects").trim().length()>0)
        {
            //store data in arrylist or string array
        }
    }
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

edited Nov 28, 2013 at 6:41

answered Nov 28, 2013 at 6:34

ishu

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1 Comment

ishu Over a year ago

Give me your Fuul String i send you Full Parsing

Virag Brahme · Accepted Answer · 2013-11-28 06:45:27Z

0

Try..

 public boolean isNull (String name)

Added in API level 1 Returns true if this object has no mapping for name or if it has a mapping whose value is NULL.

answered Nov 28, 2013 at 6:45

Virag Brahme

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Comments

Mohammed Saleem · Accepted Answer · 2013-11-28 07:34:58Z

0

use try ... catch to handle the exception:

Try{

   // parsing data

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

answered Nov 28, 2013 at 7:34

Mohammed Saleem

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