Android™

Get Certificate Valid To/From Dates

Demonstrates how to get the certificate "valid from" and "valid to" dates. 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);

    boolean success = false;

    CkCert cert = new CkCert();

    success = cert.LoadFromFile("qa_data/certs/testCert.cer");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    //  Get the certificate valid-from date/time
    CkDateTime ckdt = new CkDateTime();
    ckdt.SetFromRfc822(cert.validFromStr());

    //  Get the local timestamp string.
    Log.i(TAG, "Valid from: " + ckdt.getAsTimestamp(true));
    //  Valid from: 2017-03-17T19:00:00-05:00

    //  Now get the date/time as another object where we can get the individual numeric date parts.
    CkDtObj dt = new CkDtObj();
    ckdt.ToDtObj(true,dt);

    Log.i(TAG, String.valueOf(dt.get_Day()) + "/" + String.valueOf(dt.get_Month()) + "/" + String.valueOf(dt.get_Year()) + "  " + String.valueOf(dt.get_Hour()) + ":"
         + String.valueOf(dt.get_Minute()));

    //  Get the certificate valid-to date/time
    ckdt.SetFromRfc822(cert.validToStr());

    Log.i(TAG, "Valid to: " + ckdt.getAsTimestamp(true));
    //  Valid to: 2020-03-18T18:59:59-05:00new DtObj dt;
    ckdt.ToDtObj(true,dt);

    Log.i(TAG, String.valueOf(dt.get_Day()) + "/" + String.valueOf(dt.get_Month()) + "/" + String.valueOf(dt.get_Year()) + "  " + String.valueOf(dt.get_Hour()) + ":"
         + String.valueOf(dt.get_Minute()));

  }

  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."
  }
}