Android™

Validate a ULID

See more ULID/UUID Examples

Checks to see if a ULID is valid.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

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);

    CkDateTime dt = new CkDateTime();

    // A ULID must be exactly 26 chars in length,
    // and is composed of the following chars: 0123456789ABCDEFGHJKMNPQRSTVWXYZ
    // Note: The ULID alphabet excludes the letters I, L, O, and U

    // Here's a valid ULID
    String ulid = "01GRGCH4J88RECEN4D4VK4F629";
    boolean valid = dt.UlidValidate(ulid);
    Log.i(TAG, "valid: " + String.valueOf(valid));

    // Here's an invalid ULID
    ulid = "71GRGxx4Jr8RECEN4D4VK4F62!";
    valid = dt.UlidValidate(ulid);
    Log.i(TAG, "valid: " + String.valueOf(valid));

  }

  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."
  }
}