(Android™) Using JSON StringOf with Non-String Members

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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);

    // Create JSON with members of different data types.
    CkJsonObject json = new CkJsonObject();

    json.UpdateInt("a",123);
    json.UpdateBool("b",true);
    json.UpdateNull("c");

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

    // Resulting JSON:
    // {
    //   "a": 123,
    //   "b": true,
    //   "c": null
    // }

    String a = json.stringOf("a");
    Log.i(TAG, a);

    String b = json.stringOf("b");
    Log.i(TAG, b);

    String c = json.stringOf("c");
    Log.i(TAG, c);

    // Output

    // 123
    // true
    // null

    // If you want to get the integer, boolean, or null value
    // you need to use the methods matching the data type
    int ival = json.IntOf("a");
    boolean bval = json.BoolOf("b");
    boolean hasNull = json.IsNullOf("c");

  }

  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."
  }
}