flutter - 如何设置 onDidReceiveLocalNotification

Question

对于flutter_local_notifications的iOS设置，需要为IOSInitializationSettings添加onDidReceiveLocalNotification，但是示例代码不是开箱即用的，如何正确修复？

void onDidReceiveLocalNotification(
    int id, String title, String body, String payload) async { // How to pass id, title, body and payload
  showDialog(
    context: context, // How to get the context of dialog?
    builder: (BuildContext context) => CupertinoAlertDialog(
      title: Text(title),
      content: Text(body),
      actions: [
        CupertinoDialogAction(
          isDefaultAction: true,
          child: Text('Ok'),
          onPressed: () async {
            Navigator.of(context, rootNavigator: true).pop();
            await Navigator.push(
              context,
              MaterialPageRoute(
                builder: (context) => SecondScreen(payload),
              ),
            );
          },
        )
      ],
    ),
  );
}