Android™

Load a JsonArray

See more JSON Examples

Demonstrates how to load a JsonArray.

Note: This example requires Chilkat v9.5.0.64 or greater.

Android™

// 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);

    // This example requires Chilkat v9.5.0.64 or greater.

    // Loading into a new JSON array is simple and straightforward.
    CkJsonArray a = new CkJsonArray();
    a.Load("[ 1,2,3,4 ]");

    // Output:  [1,2,3,4]
    Log.i(TAG, a.emit());
    Log.i(TAG, "--------");

    // The JsonArray's Load and LoadSb methods have a peculiar behavior when
    // it is already part of a JSON document.  In this case, the JsonArray
    // becomes detached, and the original document remains unchanged.
    // This is intentional due to the nature of the internal implementation.
    // For example:

    CkJsonObject json = new CkJsonObject();
    json.Load("{ \"abc\": [ 1,2,3,4 ] }");

    // Output:  (json) {"abc":[1,2,3,4]}
    Log.i(TAG, "(json) " + json.emit());
    Log.i(TAG, "--------");

    CkJsonArray abc = json.ArrayOf("abc");
    // When Load is called, abc becomes it's own document, and the original is not modified.
    abc.Load("[ 5,6,7,8 ]");

    // Output: (abc) [5,6,7,8]
    Log.i(TAG, "(abc) " + abc.emit());
    Log.i(TAG, "--------");

    // Output: (json) {"abc":[1,2,3,4]}
    Log.i(TAG, "(json) " + json.emit());
    Log.i(TAG, "--------");


  }

  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."
  }
}