(Android™) Extract Timestamp from ULID

See more ULID/UUID Examples

Extract the date/time from a ULID.

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

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);

    String ulid = "01GRH14AA82EY9A7S99YYF2QDY";

    CkDateTime dt = new CkDateTime();

    // Unix timestamps stored in ULIDs should be UTC...
    boolean bLocal = false;
    // Set the CkDateTime from the timestamp contained in the ULID
    boolean success = dt.SetFromUlid(bLocal,ulid);
    if (success == false) {
        Log.i(TAG, "ULID was not valid.");
        return;
        }

    // You can now get the date/time in any desired format.
    // For example:
    Log.i(TAG, "Unix timestamp = " + String.valueOf(dt.GetAsUnixTime(bLocal)));
    Log.i(TAG, "RFC822 = " + dt.getAsRfc822(bLocal));
    Log.i(TAG, "Timestamp = " + dt.getAsTimestamp(bLocal));

    // Sample output:

    // Unix timestamp = 1675608861
    // RFC822 = Sun, 05 Feb 2023 14:54:21 GMT
    // Timestamp = 2023-02-05T14:54:21Z

  }

  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."
  }
}