CODEWITHSUNDEEP
androidjson
Humty
Humty

Reputation: 1361

Unable to get JSON data in Android

I want to send a JSON list from one activity to other. I am doing in this way

For sending

List<JSONObject> jsonList = new ArrayList<JSONObject>();
Intent i = new Intent(getApplicationContext(), AdapterContent.class);
Bundle b = new Bundle();
b.putString("Array",jsonList.toString());
i.putExtras(b);

For receiving

Bundle b = getIntent().getExtras();
String Array=b.getString("Array");
Log.i("TAG" ,Array);
JSONObject jsonobj = new JSONObject(Array);
Log.i("Name" , String.valueOf(jsonobj.getString("Name")));

JSON Object

[
{"Name":"Area1"},
{"Name":"Area 2"}
]

But it is prompting

W/System.err:at com.example.data.mydata.onCreate

It is printing the Array but not the Name from JsonObj Is anything wrong here?

Upvotes: 1

Views: 98

Answers (3)

Zar E Ahmer
Zar E Ahmer

Reputation: 34380

Why do you need to send JsonList . It's better to create a model class for your List. and make it parcelable. and send it to another activity

intent.putExtra(Key,yourModelClass);

Upvotes: 0

SaravInfern
SaravInfern

Reputation: 3388

you must cast the json string into json array not as json object

String Array = getIntent().getExtras().getString("Array");
Log.i("TAG" ,Array);
JSONArray jsonArr = new JSONArray(Array);
JSONObject jsonObj;
for(int i=0;i<jsonArr.length();i++){
  jsonObj = jsonArr.getJSONObject(i);
  Log.i("Name" , String.valueOf(jsonObj.getString("Name")));
}

Note: it is recommended to serialize or convert the data to parcelable while passing between activities

Upvotes: 0

Pavneet_Singh
Pavneet_Singh

Reputation: 37414

// make a json array
JSONArray jsonArr = new JSONArray(Array);

// empty containers for later use 
JSONObject jobj;
String name=null;

// traverse all json object according to index of jsonarray
for(int i=0;i<jsonArr.length();i++){

// fetch jasonObject according to index
  jobj=jsonArr.getJSONObject(i);

// get the name string from object and use it accordingly 
  name=jobj.optString("Name");
}

Upvotes: 2

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