import 'package:flutter/material.dart';

class LinearProgressDialog extends StatefulWidget {
  final String message;

  const LinearProgressDialog(this.message, {Key key}) : super(key: key);

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

class LinearProgressDialogState extends State<LinearProgressDialog> {
  double _progress;

  @override
  void initState() {
    _progress = 0;
    super.initState();
  }

  void setProgress(double progress) {
    setState(() {
      _progress = progress;
    });
  }

  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      onWillPop: () async => false,
      child: AlertDialog(
        title: Text(
          widget.message,
          style: TextStyle(
            fontSize: 16,
          ),
          textAlign: TextAlign.center,
        ),
        content: LinearProgressIndicator(
          value: _progress,
          valueColor:
              AlwaysStoppedAnimation<Color>(Theme.of(context).buttonColor),
        ),
      ),
    );
  }
}