CupertinoAlertDialog

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class ShowDialogCupertino extends StatefulWidget {
  const ShowDialogCupertino({Key? key}) : super(key: key);

  @override
  _ShowDialogCupertinoState createState() => _ShowDialogCupertinoState();
}

class _ShowDialogCupertinoState extends State<ShowDialogCupertino> {

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(title: const Text("CupertinoAlertDialog")),
        body: Container(
            padding: const EdgeInsets.all(20),
            alignment: Alignment.center,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.spaceAround,
              children: [
                oneSingleButton(context),
              ],
            )
        )
    );
  }

  /// **********************************************************************
  /// This button just for calling the AlertDialog
  /// **********************************************************************
  Widget oneSingleButton(BuildContext context) {
    return ElevatedButton(
        onPressed: () {
          confirmPhoto(context);
        },
        style: ElevatedButton.styleFrom(
            backgroundColor: Colors.blue,
            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20.0))
        ),
        child: const Text("Tap here")
    );
  }

  /// **********************************************************************
  /// Cupertino style dialog
  /// **********************************************************************
  Future<void> confirmPhoto(BuildContext context) async {

    showCupertinoDialog(
        context: context,
        builder: (builder) => CupertinoAlertDialog(
          title: const Text("Delete photo ?"),
          content: const Text("Please confirm"),
          actions: [
            CupertinoDialogAction(
                child: const Text("Cancel"),
                onPressed: () {
                  print("Canceled");
                  Navigator.of(context).pop(); }
            ),
            CupertinoDialogAction(
                child: const Text("Confirm"),
                onPressed: (){
                  print("Confirmed");
                  Navigator.of(context).pop();
                }
            )
          ],
        )
    );
  }
}