JSON are alternative to XML and easy to understand than XML.
As other languages Java also supports JSON parsing.
Here is a simple example of JSON parsing in ANDROID.
This is the JSON String that I am going to parse.
{"A": { "A1":"A1_value" ,"A2":"A2_value","sub": { "sub1":[ {"sub1_attr":"sub1_attr_value" }]} }}"; |
And this JSON is same as this xml.
<A A1="A1_value" A2="A2_value"> <sub> <sub1 sub1_attr="sub1_attr_value" /> </sub> <A> |
Here is the code for this parsing.
package pack.coderzheaven;import org.json.JSONArray;import org.json.JSONObject;import android.app.Activity;import android.os.Bundle;public class JSON_Demo extends Activity { private JSONObject jObject; private String test = "{"A": { "A1":"A1_value" ,"A2":"A2_value", "sub": { "sub1":[ {"sub1_attr":"sub1_attr_value" }] } } }"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); try { parse(); } catch (Exception e) { e.printStackTrace(); } } private void parse() throws Exception { jObject = new JSONObject(test); JSONObject menuObject = jObject.getJSONObject("A"); String attributeId1 = menuObject.getString("A1"); System.out.println("A1 value == " +attributeId1); String attributeId2 = menuObject.getString("A2"); System.out.println("A2 value == " +attributeId2); JSONObject popupObject = menuObject.getJSONObject("sub"); JSONArray menuitemArray = popupObject.getJSONArray("sub1"); System.out.println("sub1_attr = " + menuitemArray.getJSONObject(0).getString("sub1_attr").toString()); }} |
Please check the Logcat for the output.
Posts to come.
More complex JSON String parsing in ANDROID.
Please leave your valuable comments.
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