(Android™) Insert JSON Array into another JSON Object

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Demonstrates how to insert a JSON array into a JSON object.

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);

    // Imagine we have two separate JSON objects.
    CkJsonObject jsonA = new CkJsonObject();
    jsonA.UpdateString("ciphertext","encryptedData");
    jsonA.UpdateInt("status",200);
    jsonA.UpdateString("error","errorMsg");

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

    // jsonA contains:

    // {
    //   "ciphertext": "encryptedData",
    //   "status": 200,
    //   "error": "errorMsg"
    // }

    CkJsonObject jsonB = new CkJsonObject();
    jsonB.UpdateString("users[0].role","Surgeon");
    jsonB.UpdateNewArray("users[0].sub_roles");
    jsonB.UpdateBool("users[0].viewable_for_sharing",true);
    jsonB.UpdateInt("users[0].eula_create_date",123);
    jsonB.UpdateString("users[1].role","Support");
    jsonB.UpdateString("users[1].sub_roles[0]","Tech");
    jsonB.UpdateString("users[1].sub_roles[1]","Service");
    jsonB.UpdateBool("users[1].viewable_for_sharing",true);
    jsonB.UpdateInt("users[1].eula_create_date",123);

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

    // jsonB contains:

    // {
    //   "users": [
    //     {
    //       "role": "Surgeon",
    //       "sub_roles": [],
    //       "viewable_for_sharing": true,
    //       "eula_create_date": 1649108922482
    //     },
    //     {
    //       "role": "Support",
    //       "sub_roles": [
    //         "Tech",
    //         "Service"
    //       ],
    //       "viewable_for_sharing": true,
    //       "eula_create_date": 1649108951523
    //     }
    //   ]
    // }

    // Let's say we want to insert jsonB into jsonA to get this:

    // {
    //   "ciphertext": "encryptedData",
    //   "status": 200,
    //   "error": "errorMsg",
    //   "users": [
    //     {
    //       "role": "Surgeon",
    //       "sub_roles": [],
    //       "viewable_for_sharing": true,
    //       "eula_create_date": 1649108922482
    //     },
    //     {
    //       "role": "Support",
    //       "sub_roles": [
    //         "Tech",
    //         "Service"
    //       ],
    //       "viewable_for_sharing": true,
    //       "eula_create_date": 1649108951523
    //     }
    //   ]
    // }

    // First add an empty array at the desired location (-1 means append to end).
    jsonA.AddArrayAt(-1,"users");

    // The destination is the empty "users" array, the source is the populated "users" array in jsonB.
    CkJsonArray jsonUsersDest = jsonA.ArrayOf("users");
    CkJsonArray jsonUsersSrc = jsonB.ArrayOf("users");
    // Copy the array items from source to dest
    jsonUsersDest.AppendArrayItems(jsonUsersSrc);

    Log.i(TAG, jsonA.emit());

    // The end result is this:

    // {
    //   "ciphertext": "encryptedData",
    //   "status": 200,
    //   "error": "errorMsg",
    //   "users": [
    //     {
    //       "role": "Surgeon",
    //       "sub_roles": [
    //       ],
    //       "viewable_for_sharing": true,
    //       "eula_create_date": 123
    //     },
    //     {
    //       "role": "Support",
    //       "sub_roles": [
    //         "Tech",
    //         "Service"
    //       ],
    //       "viewable_for_sharing": true,
    //       "eula_create_date": 123
    //     }
    //   ]
    // }

  }

  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."
  }
}