cssd/lib/pages/TestPages/test_scan_screen.dart

import 'package:cssd/utils/scan.dart';
import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/url_launcher.dart';

import '../../config/routes.dart';
import '../../providers/connectivity.dart';
import '../../widgets/Global/internet_error.dart';

class TestScanScreen extends StatefulWidget {
  // static const route = '/TestScanScreen';
  @override
  State<StatefulWidget> createState() {
    return _TestScanScreenState();
  }
}

class _TestScanScreenState extends State<TestScanScreen> {
  String testCode = "";
  TextEditingController idCTRL = new TextEditingController();
  final _form = GlobalKey<FormState>();

  @override
  Widget build(BuildContext context) {
    final _media = MediaQuery.of(context);
    // final double _pixelRatio = (_media.size.height / _media.size.width * 7 / 5);
    final double _devicewidth = _media.size.width;
    final double _deviceBlockSize = _devicewidth / 100;
    return SafeArea(
      child: Scaffold(
        appBar: AppBar(
          titleSpacing: -10,
          title: Text(
            'Test Results',
            style: TextStyle(
              color: Colors.white,
            ),
          ),
          backgroundColor: Colors.black,
          leading: IconButton(
            icon: Icon(
              Icons.keyboard_arrow_left,
              color: Colors.white,
              size: 35,
            ),
            onPressed: () => Navigator.of(context).pop(),
          ),
        ),
        body: Consumer<ConnectivityProvider>(
          builder: (ct, connection, _) {
            return connection.conStatus != 'offline'
                ? ListView(
                    padding: EdgeInsets.symmetric(horizontal: 20),
                    children: <Widget>[
                      Container(
                        padding: EdgeInsets.only(top: 30),
                        child: Text(
                          'Looking for a Test Result?',
                          textAlign: TextAlign.left,
                          style: TextStyle(
                            color: Colors.black,
                            fontSize: 5.5 * _deviceBlockSize,
                            fontWeight: FontWeight.w700,
                            letterSpacing: 3,
                          ),
                        ),
                      ),
                      GestureDetector(
                        child: Container(
                          margin: EdgeInsets.symmetric(vertical: 10),
                          height: 200,
                          decoration: BoxDecoration(border: Border.all()),
                          child: Center(
                            child: Text(
                              'Please Scan The Test Result Barcode',
                              style: TextStyle(
                                color: Colors.black,
                                fontSize: 5 * _deviceBlockSize,
                                fontWeight: FontWeight.w100,
                                letterSpacing: 3,
                              ),
                              textAlign: TextAlign.center,
                            ),
                          ),
                        ),
                        onTap: () {
                          scan().then(
                            (String result) {
                              if (result == 'cancel') {
                                print('cancel');
                              } else if (result == 'error') {
                                print('error');
                              } else if (result == 'access') {
                                print('access');
                              } else {
                                launch(
                                  'https://cssd-doc.com/Show/TestResult/$result',
                                );
                                // Navigator.of(context).pushNamed(
                                //   Routes.cycleDetailScreen,
                                //   arguments: result,
                                // );
                              }
                            },
                          );
                        },
                      ),
                      SizedBox(
                        height: 10.0,
                      ),
                      Form(
                        key: _form,
                        child: TextFormField(
                          validator: (val) {
                            if (val!.isEmpty) {
                              return 'Id required!!';
                            }
                            return null;
                          },
                          controller: idCTRL,
                          decoration: InputDecoration(
                            icon: Icon(
                              FontAwesomeIcons.sortNumericDown,
                              size: 6 * _deviceBlockSize,
                            ),
                            labelStyle: TextStyle(
                              fontWeight: FontWeight.w100,
                              fontSize: 4 * _deviceBlockSize,
                            ),
                            isDense: true,
                            labelText: 'Or enter a Test Result ID',
                            contentPadding: EdgeInsets.symmetric(
                              vertical: 2,
                              horizontal: 3,
                            ),
                            focusedBorder: UnderlineInputBorder(
                              // borderRadius: BorderRadius.only(Radius.circular(4)),
                              borderSide: BorderSide(
                                color: Colors.grey,
                              ),
                            ),
                          ),
                          style: TextStyle(
                            fontWeight: FontWeight.w700,
                            fontSize: 5 * _deviceBlockSize,
                          ),
                          keyboardType: TextInputType.number,
                        ),
                      ),
                      SizedBox(
                        height: 70,
                      ),
                      InkWell(
                        onTap: () {
                          if (!_form.currentState!.validate()) {
                            return;
                          }
                          launch(
                            'https://cssd-doc.com/Show/TestResult/${idCTRL.text}',
                          );
                        },
                        child: Container(
                          padding: EdgeInsets.symmetric(
                            horizontal: 5 * _deviceBlockSize,
                            vertical: 10,
                          ),
                          decoration: BoxDecoration(
                            gradient: LinearGradient(
                              colors: [Colors.black, Colors.black87],
                            ),
                            borderRadius: BorderRadius.circular(7),
                          ),
                          child: Align(
                            alignment: Alignment.center,
                            child: Text(
                              'Search',
                              style: TextStyle(
                                color: Colors.white,
                                fontSize: 5 * _deviceBlockSize,
                              ),
                            ),
                          ),
                        ),
                      ),
                    ],
                  )
                : ConnectionErrorBox();
          },
        ),
      ),
    );
  }
}