myhomie_app/lib/Components/custom_dialog.dart

import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:myhomie_app/Components/Buttons/rounded_button.dart';
import 'package:myhomie_app/constants.dart';

class Consts {
  Consts._();

  static const double padding = 16.0;
  static const double avatarRadius = 70.0;
}

class CustomDialog extends StatelessWidget {
  String title, description, buttonText;
  String? iconSvg;

  Function onPress;

  CustomDialog({
    required this.title,
    required this.description,
    required this.buttonText,
    this.iconSvg,
    required this.onPress
  });

  @override
  Widget build(BuildContext context) {
    return Dialog(
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(Consts.padding),
      ),
      elevation: 0.0,
      backgroundColor: Colors.transparent,
      child: dialogContent(context),
    );
  }

  dialogContent(BuildContext context) {
    Size size = MediaQuery.of(context).size;
    return Stack(
      children: <Widget>[
        Container(
          padding: EdgeInsets.only(
            top: Consts.avatarRadius + Consts.padding,
            bottom: Consts.padding,
            left: Consts.padding,
            right: Consts.padding,
          ),
          margin: EdgeInsets.only(top: Consts.avatarRadius),
          decoration: new BoxDecoration(
            color: Colors.white,
            shape: BoxShape.rectangle,
            borderRadius: BorderRadius.circular(Consts.padding),
            boxShadow: [
              BoxShadow(
                color: Colors.black26,
                blurRadius: 10.0,
                offset: const Offset(0.0, 10.0),
              ),
            ],
          ),
          child: Column(
            mainAxisSize: MainAxisSize.min, // To make the card compact
            children: <Widget>[
              SizedBox(height: 16.0),
              Text(
                description,
                textAlign: TextAlign.center,
                style: TextStyle(
                  fontSize: 16.0,
                ),
              ),
              SizedBox(height: 22.0),
              Align(
                alignment: Alignment.bottomRight,
                child: RoundedButton(
                  press: () {
                    onPress();
                    Navigator.of(context).pop(); // To close the dialog
                  },
                  text: buttonText,
                ),
              ),
            ],
          ),
        ),
        Positioned(
          left: Consts.padding,
          right: Consts.padding,
          child: Container(
            width: size.width *0.18,
            height: size.height *0.18,
            decoration: BoxDecoration(
              shape: BoxShape.circle,
              gradient: LinearGradient(
                begin: Alignment.centerLeft,
                end: Alignment.centerRight,
                colors: [
                  Color(0xFFDD79C2),
                  Color(0xFFB65FBE),
                  Color(0xFF9146BA),
                  Color(0xFF7633B8),
                  Color(0xFF6528B6),
                  Color(0xFF6025B6)
                ],
              ),
              //borderRadius: BorderRadius.circular(10.0),
            ),
            child: Center(
                child: Stack(
                    children: [
                      if (iconSvg != null)
                        SvgPicture.asset(
                          iconSvg!,
                          height: 65,
                          color: Colors.white,
                        )
                      else
                        Container(
                          width: size.width*0.3,
                          height: size.width*0.23,
                          child: Center(
                            child: Text(
                              title,
                              style: kHeadingTextStyle,
                              textAlign: TextAlign.center,
                              overflow: TextOverflow.clip
                            ),
                          ),
                        )
                    ]))
          ),
        ),
      ],
    );
  }
}