(Android™) Append Big-Endian or Little-Endian Integers

Demonstrates how to append integers in big-endian or little-endian byte order to a BinData.

Note: This example requires Chilkat v9.5.0.77 or greater.

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);

    CkBinData bd = new CkBinData();

    // The hex value of decimal 123456789 is 0x075BCD15
    int x = 123456789;

    // Appending little-endian causes bytes to be
    // appended in the order 0x15, 0xCD, 0x5B, 0x07
    boolean littleEndian = true;
    boolean success = bd.AppendInt4(x,littleEndian);

    Log.i(TAG, bd.getEncoded("hex"));
    // Output is: 15CD5B07

    // Now append the same integer in big-endian byte order.
    // Appending bit-endian causes bytes to be
    // appended in the order 0x07, 0x5B, 0xCD, 0x15
    littleEndian = false;
    bd.AppendInt4(x,littleEndian);

    Log.i(TAG, bd.getEncoded("hex"));
    // bd now contains: 15CD5B07075BCD15

    // -------------------------------------------
    // Now do the same thing with 16-bit integers
    bd.Clear();

    // 1234 decimal = 0x04D2 hex.
    x = 1234;

    littleEndian = true;
    bd.AppendInt2(x,littleEndian);

    Log.i(TAG, bd.getEncoded("hex"));
    // Output is: D204

    littleEndian = false;
    bd.AppendInt2(x,littleEndian);

    Log.i(TAG, bd.getEncoded("hex"));
    // Output is now: D20404D2

  }

  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."
  }
}