import 'package:flutter/material.dart';

class ShowAlertDialog extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      title: Text('Type your alert'),
      actions: <Widget>[
        FlatButton(
          child: Text('Cancel'),
          onPressed: () {
            Navigator.of(context).pop();
          },
        ),
        FlatButton(
          child: Text('Show'),
          onPressed: () {
            Navigator.of(context).pop();
          },
        )
      ],
      content: Container(
        constraints: BoxConstraints(maxWidth: 500),
        child: TextField(
          maxLines: 5,
          autofocus: true,
          decoration: InputDecoration(
            border: OutlineInputBorder(),
          ),
        ),
      ),
    );
  }
}