(Android™) Generate UUID

See more ULID/UUID Examples

Generates a version 4 UUID, using either uppercase or lowercase hex.

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);

    CkStringBuilder sb = new CkStringBuilder();

    // Generate a lowercase UUID.
    boolean lowercase = true;
    sb.AppendUuid(lowercase);
    Log.i(TAG, sb.getAsString());

    // example: edb1bb24-e9be-4ada-98bd-c2d893f29f55

    lowercase = false;
    sb.Clear();
    sb.AppendUuid(lowercase);
    Log.i(TAG, sb.getAsString());

    // example: 338EAF28-631E-4303-BE27-A8D80E9191CB

  }

  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."
  }
}