(Android™) Create more Complex JSON Document

Sample code to create the following JSON document:

    {  
        "Title": "The Cuckoo's Calling",  
        "Author": "Robert Galbraith",  
        "Genre": "classic crime novel",  
        "Detail": {  
            "Publisher": "Little Brown",  
            "Publication_Year": 2013,  
            "ISBN-13": 9781408704004,  
            "Language": "English",  
            "Pages": 494  
        },  
        "Price": [  
            {  
                "type": "Hardcover",  
                "price": 16.65  
            },  
            {  
                "type": "Kindle Edition",  
                "price": 7.00  
            }  
        ]  
    }  

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    CkJsonObject json = new CkJsonObject();

    boolean success;

    // The only reason for failure in the following lines of code would be an out-of-memory condition..

    // An index value of -1 is used to append at the end.
    int index = -1;

    success = json.AddStringAt(-1,"Title","The Cuckoo's Calling");
    success = json.AddStringAt(-1,"Author","Robert Galbraith");
    success = json.AddStringAt(-1,"Genre","classic crime novel");

    // Let's create the Detail JSON object:
    success = json.AddObjectAt(-1,"Detail");
    CkJsonObject detail = json.ObjectAt(json.get_Size() - 1);
    success = detail.AddStringAt(-1,"Publisher","Little Brown");
    success = detail.AddIntAt(-1,"Publication_Year",2013);
    success = detail.AddNumberAt(-1,"ISBN-13","9781408704004");
    success = detail.AddStringAt(-1,"Language","English");
    success = detail.AddIntAt(-1,"Pages",494);

    // Add the array for Price
    success = json.AddArrayAt(-1,"Price");
    CkJsonArray aPrice = json.ArrayAt(json.get_Size() - 1);

    // Entry entry in aPrice will be a JSON object.

    // Append a new/empty ojbect to the end of the aPrice array.
    success = aPrice.AddObjectAt(-1);
    // Get the object that was just appended.
    CkJsonObject priceObj = aPrice.ObjectAt(aPrice.get_Size() - 1);
    success = priceObj.AddStringAt(-1,"type","Hardcover");
    success = priceObj.AddNumberAt(-1,"price","16.65");

    success = aPrice.AddObjectAt(-1);
    priceObj = aPrice.ObjectAt(aPrice.get_Size() - 1);
    success = priceObj.AddStringAt(-1,"type","Kindle Edition");
    success = priceObj.AddNumberAt(-1,"price","7.00");

    json.put_EmitCompact(false);
    Log.i(TAG, json.emit());

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}