cssd/lib/pages/test_add_screen.dart

import 'package:cssd/config/routes.dart';
import 'package:cssd/providers/connectivity.dart';
import 'package:cssd/widgets/Global/internet_error.dart';
import 'package:cssd/widgets/TestResultScreens/Add/selector_box.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:barcode_scan/barcode_scan.dart';
import 'package:cssd/providers/test_results.dart';
// import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';

import 'package:cssd/pages/test_form_page.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:provider/provider.dart';

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

class _TestResultAddScreenState extends State<TestResultAddScreen> {
  String testCode = "";
  TextEditingController testTypeCTRL = new TextEditingController();
  final List<String> testTypeVals = [];

  TextEditingController testIdCTRL = new TextEditingController();
  bool isInit = true;
  @override
  void didChangeDependencies() {
    if (isInit) {
      var testResultProviderObject =
          Provider.of<TestResultsProvider>(context, listen: false);
      testResultProviderObject.getFilterItems().then((result) {
        for (var testType in result[1].keys) {
          testTypeVals.add(testType);
        }
        testTypeCTRL.text = testTypeVals[0];
        setState(() {
          isInit = false;
        });
      });
    }
    super.didChangeDependencies();
  }

  @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 WillPopScope(
      onWillPop: () async {
        Navigator.pushReplacementNamed(
          context,
          Routes.testResultScreen,
        );
        return true;
      },
      child: Scaffold(
        appBar: AppBar(
          titleSpacing: -10,
          title: Text('Test Results'),
          leading: IconButton(
            icon: Icon(
              Icons.keyboard_arrow_left,
              size: 35,
            ),
            // padding: EdgeInsets.all(0),
            onPressed: () =>
                Navigator.of(context).popAndPushNamed(Routes.testResultScreen),
          ),
        ),
        body: Consumer<ConnectivityProvider>(builder: (ct, connection, _) {
          return connection.conStatus != 'offline'
              ? isInit
                  ? Center(
                      child: CircularProgressIndicator(),
                    )
                  : ListView(
                      padding:
                          EdgeInsets.symmetric(horizontal: 20, vertical: 20),
                      children: <Widget>[
                        Container(
                          padding: EdgeInsets.only(
                            top: 10,
                          ),
                          child: Text(
                            'ADD A TEST RESULT',
                            style: TextStyle(
                              color: Colors.black,
                              fontSize: 5 * _deviceBlockSize,
                              letterSpacing: 3,
                              fontWeight: FontWeight.w700,
                            ),
                          ),
                        ),
                        GestureDetector(
                          child: Container(
                            margin: EdgeInsets.only(top: 5, bottom: 30),
                            padding: EdgeInsets.all(10),
                            height: 200,
                            decoration: BoxDecoration(border: Border.all()),
                            child: Center(
                              child: Text(
                                'PLEASE SCAN THE TEST BARCODE',
                                textAlign: TextAlign.center,
                                style: TextStyle(
                                  color: Colors.grey,
                                  fontSize: 5 * _deviceBlockSize,
                                  fontWeight: FontWeight.w100,
                                  letterSpacing: 3,
                                ),
                              ),
                            ),
                          ),
                          onTap: () {
                            scan().then(
                              (String result) {
                                if (result == 'cancel') {
                                  print('cancel');
                                } else if (result == 'error') {
                                  print('error');
                                } else if (result == 'access') {
                                  print('access');
                                } else {
                                  Navigator.pushReplacement(
                                    context,
                                    MaterialPageRoute(
                                      builder: (context) {
                                        return FormPage(
                                          uniqueCode: result,
                                        );
                                      },
                                    ),
                                  );
                                }
                              },
                            );
                          },
                        ),
                        Row(
                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
                          crossAxisAlignment: CrossAxisAlignment.center,
                          mainAxisSize: MainAxisSize.max,
                          children: <Widget>[
                            Column(
                              crossAxisAlignment: CrossAxisAlignment.start,
                              children: <Widget>[
                                Container(
                                  width: 70 * _deviceBlockSize,
                                  child: TestResultAddSelectorBox(
                                      deviceBlockSize: _deviceBlockSize,
                                      dataCTRL: testTypeCTRL,
                                      dataVals: testTypeVals,
                                      label: 'Choose a Test Type'),
                                ),
                                Row(
                                  crossAxisAlignment: CrossAxisAlignment.end,
                                  children: <Widget>[
                                    Text(
                                      'OR',
                                      style: TextStyle(
                                        fontWeight: FontWeight.w700,
                                        fontSize: 7 * _deviceBlockSize,
                                      ),
                                    ),
                                    SizedBox(
                                      width: 8 * _deviceBlockSize,
                                    ),
                                    Container(
                                      width: 50 * _deviceBlockSize,
                                      child: TextFormField(
                                        onChanged: (val) {
                                          if (val != '') {
                                            setState(() {
                                              testTypeCTRL.text = '';
                                            });
                                          } else {
                                            setState(() {
                                              testTypeCTRL.text =
                                                  testTypeVals[0];
                                            });
                                          }
                                        },
                                        controller: testIdCTRL,
                                        decoration: InputDecoration(
                                          isDense: true,
                                          icon: Icon(
                                            FontAwesomeIcons.sortNumericDown,
                                          ),
                                          labelText: 'Enter a Test Code',
                                          labelStyle: TextStyle(
                                              fontSize: 3 * _deviceBlockSize),
                                          contentPadding: EdgeInsets.only(
                                              bottom: 5, top: 5),
                                        ),
                                        keyboardType: TextInputType.number,
                                      ),
                                    ),
                                  ],
                                )
                              ],
                            ),
                            SizedBox(
                              width: 5 * _deviceBlockSize,
                            ),
                            Expanded(
                              child: Container(
                                height: 100,
                                margin: EdgeInsets.only(bottom: 50),
                                child: FlatButton(
                                  padding: EdgeInsets.all(0),
                                  color: Color(0xFFEB4A64),
                                  shape: RoundedRectangleBorder(
                                    borderRadius: BorderRadius.circular(10),
                                  ),
                                  child: Text(
                                    'GO',
                                    textAlign: TextAlign.center,
                                    style: TextStyle(
                                        color: Colors.white,
                                        fontSize: 6 * _deviceBlockSize,
                                        fontWeight: FontWeight.w700),
                                  ),
                                  onPressed: () {
                                    if (testIdCTRL.text != '') {
                                      Navigator.push(
                                        context,
                                        MaterialPageRoute(
                                          builder: (context) {
                                            return FormPage(
                                                uniqueCode: testIdCTRL.text);
                                          },
                                        ),
                                      );
                                    } else if (testTypeCTRL.text != '') {
                                      Navigator.pushReplacement(
                                        context,
                                        MaterialPageRoute(
                                          builder: (context) {
                                            return FormPage(
                                              name: testTypeCTRL.text,
                                            );
                                          },
                                        ),
                                      );
                                    }
                                    // print(testCode);
                                  },
                                ),
                              ),
                            )
                          ],
                        ),
                      ],
                    )
              : ConnectionErrorBox();
        }),
      ),
    );
  }

  Future<String> scan() async {
    try {
      var barcode = await BarcodeScanner.scan();
      if (barcode.type.name == 'Cancelled') {
        return 'cancel';
      } else if (barcode.type.name == 'Failed') {
        return 'error';
      }
      return barcode.rawContent;
    } on PlatformException catch (_) {
      return 'access';
    } catch (_) {
      return 'error';
    }
  }
}