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JSONObject and JSONArray are the two common classes usually available in most of the JSON processing libraries. A JSONObject stores unordered key-value pairs, much like a Java Map implementation. A JSONArray, on the other hand, is an ordered sequence of values much like a List or a Vector in Java.
The JSON data is an object (basically an associative array). Indexed arrays use square brackets, [0,1,2] , while associative arrays use curly braces, {x:1,y:2,z:3} . Any of the data within the outermost object can be either type of array, but the outermost object itself has to use curly braces.
This is my JSON:
{ "data": [ { "id": 1, "Name": "Choc Cake", "Image": "1.jpg", "Category": "Meal", "Method": "", "Ingredients": [ { "name": "1 Cup Ice" }, { "name": "1 Bag Beans" } ] }, { "id": 2, "Name": "Ice Cake", "Image": "dfdsfdsfsdfdfdsf.jpg", "Category": "Meal", "Method": "", "Ingredients": [ { "name": "1 Cup Ice" } ] } ] } And this is how I am getting the id and name, you can see this part works fine in returning JSON values that are not array values.
//getting whole json string JSONObject jsonObj = new JSONObject(jsonStr); //extracting data array from json string JSONArray ja_data = jsonObj.getJSONArray("data"); int length = jsonObj .length(); //loop to get all json objects from data json array for(int i=0; i<length; i++) { JSONObject jObj = ja_data.getJSONObject(i); Toast.makeText(this, jObj.getString("Name"), Toast.LENGTH_LONG).show(); // getting inner array Ingredients JSONArray ja = jObj.getJSONArray("Ingredients"); int len = ja.length(); } Now i'm trying to get the values from the ingredients array and I am not sure how to get them? This is what I have been trying thus far.
//getting whole json string JSONObject jsonObj = new JSONObject(jsonStr); //extracting data array from json string JSONArray ja_data = jsonObj.getJSONArray("data"); int length = jsonObj .length(); //loop to get all json objects from data json array for(int i=0; i<length; i++) { JSONObject jObj = ja_data.getJSONObject(i); Toast.makeText(this, jObj.getString("Name"), Toast.LENGTH_LONG).show(); // getting inner array Ingredients JSONArray ja = jObj.getJSONArray("Ingredients"); int len = ja.length(); // getting json objects from Ingredients json array for(int j=0; j<len; j++) { JSONObject json = ja.getJSONObject(j); Toast.makeText(this, json.getString("name"), Toast.LENGTH_LONG).show(); } } But doing it this way is not working, how can I get it to work?
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