This github repo is implementation of com.notnoop.apns.ApnsService.

Firstly you need create aps certification here. After that install certificate and export p12 file with Keychain app.

And change password and cert file in ApplePushNotificationServiceImpl;

send a push ios notification

private static String deviceToken = "7f5efa476a8ac25bc1fe48488520724835c86aa4d3fe50ad5a2975650a1ad0c1";

private static void testAppleNotification()
{
    NotificationService notificationService = ApplePushNotificationServiceImpl.getInstance();
    Notification notification = buildTestNotification();
    notificationService.push(deviceToken, notification);
}

private static Notification buildTestNotification()
{
    Notification notification = new Notification();
    notification.setTitle("Apple Push Notification Service");
    notification.setSubTitle("Lorem simply dummy");
    notification.setBody("Lorem Ipsum is simply dummy text of the printing and typesetting industry.");
    notification.setCategory(NotificationCategory.DEFAULT);
    return notification;
}