cn80listener 0.0.2

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  • Changelog
  • Example
  • Installing
  • 51

cn80listener #

A Honeywell CN80 Flutter Plugin

Getting Started #

cn80listener #

A Honeywell CN80 Flutter Plugin

Usage #

To use this plugin, add cn80listener as a dependency in your pubspec.yaml file.

Getting Started #

Check out the example directory for a sample app using Firebase Cloud Messaging.

License #

MIT

0.0.1 #

  • Initial Release - ability to turn scanner off and on and hook to scan events.

example/lib/main.dart

import 'package:cn80listener/cn80listener.dart';
import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _code = 'Unknown';

  static final channelName = 'cn80listener';

  final methodChannel = MethodChannel(channelName);

  Future<void> _scanDecoded(MethodCall call) async {
    // type inference will work here avoiding an explicit cast
    final String utterance = call.arguments;
    switch(call.method) {
      case "scanDecoded":
        _code = utterance;
        setState(() {

        });
        break;
      case "scanDecodedWithError":
        _code = utterance;
        setState(() {

        });
    }
  }

  @override
  void initState() {
    super.initState();
    methodChannel.setMethodCallHandler(this._scanDecoded);
    initPlatformState();
  }

  @override
  void dispose()
  {
    disposePlatformState();
    super.dispose();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      await Cn80listener.startScanner;
    } on PlatformException {

    }
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> disposePlatformState() async {
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      await Cn80listener.stopScanner;
    } on PlatformException {

    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: WillPopScope(
        onWillPop: () async {
          await disposePlatformState();
          return true;
        },
        child: Scaffold(
          appBar: AppBar(
            title: const Text('Plugin example app'),
          ),
          body: Center(
            child: Text('Running on: $_code\n'),
          ),
        ),
      ),
    );
  }
}

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  cn80listener: ^0.0.2

2. Install it

You can install packages from the command line:

with Flutter:


$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:cn80listener/cn80listener.dart';
  
Popularity:
Describes how popular the package is relative to other packages. [more]
27
Health:
Code health derived from static analysis. [more]
100
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
40
Overall:
Weighted score of the above. [more]
51
Learn more about scoring.

We analyzed this package on Jul 9, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.14
  • Flutter: 1.17.5

Analysis suggestions

Package does not support Flutter platform linux

Because:

  • package:cn80listener/cn80listener.dart that declares support for platforms: android, ios

Package does not support Flutter platform macos

Because:

  • package:cn80listener/cn80listener.dart that declares support for platforms: android, ios

Package does not support Flutter platform web

Because:

  • package:cn80listener/cn80listener.dart that declares support for platforms: android, ios

Package does not support Flutter platform windows

Because:

  • package:cn80listener/cn80listener.dart that declares support for platforms: android, ios

Package not compatible with SDK dart

Because:

  • cn80listener that is a package requiring null.

Health suggestions

Format lib/cn80listener.dart.

Run flutter format to format lib/cn80listener.dart.

Maintenance issues and suggestions

Make sure dartdoc successfully runs on your package's source files. (-10 points)

Running dartdoc failed with the following output: NoSuchMethodError: The getter 'attributes' was called on null. Receiver: null Tried calling: attributes

#0      DartdocCustomizer._addPubPackageLink (package:pub_dev/dartdoc/customization.dart:168:17)
#1      DartdocCustomizer.customizeHtml (package:pub_dev/dartdoc/customization.dart:61:7)
#2      DartdocCustomizer.customizeFile (package:pub_dev/dartdoc/customization.dart:35:31)
<asynchronous suspension>
#3      DartdocCustomizer.customizeDir (package:pub_dev/dartdoc/customization.dart:26:25)
<asynchronous suspension>
#4      DartdocJobProcessor.process (package:pub_dev/dartdoc/dartdoc_runner.dart:211:14)
<asynchronous suspension>
#5      JobProcessor.run (package:pub_dev/job/job.dart:65:28)
<asynchronous suspension>
#6      JobMaintenance.run (package:pub_dev/job/job.dart:106:18)
#7      _workerMain.<anonymous closure> (package:pub_dev/service/entrypoint/dartdoc.dart:108:26)
#8      StackZoneSpecification._registerUnaryCallback.<anonymous closure>.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:26)
#9      StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#10     StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:14)
#11     _rootRunUnary (dart:async/zone.dart:1192:38)
#12     _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#13     _FutureListener.handleValue (dart:async/future_impl.dart:141:18)
#14     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:682:45)
#15     Future._propagateToListeners (dart:async/future_impl.dart:711:32)
#16     Future._completeWithValue (dart:async/future_impl.dart:526:5)
#17     _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:36:15)
#18     _completeOnAsyncReturn (dart:async-patch/async_patch.dart:298:13)
#19     DartdocJobProcessor.generateDocsForSdk (package:pub_dev/dartdoc/dartdoc_runner.dart)
#20     StackZoneSpecification._registerUnaryCallback.<anonymous closure>.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:26)
#21     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#22     StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:14)
#23     _rootRunUnary (dart:async/zone.dart:1192:38)
#24     _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#25     _FutureListener.handleValue (dart:async/future_impl.dart:141:18)
#26     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:682:45)
#27     Future._propagateToListeners (dart:async/future_impl.dart:711:32)
#28     Future._completeWithValue (dart:async/future_impl.dart:526:5)
#29     _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:36:15)
#30     _completeOnAsyncReturn (dart:async-patch/async_patch.dart:298:13)
#31     VersionedJsonStorage.hasCurrentData (package:pub_dev/shared/storage.dart)
#32     StackZoneSpecification._registerUnaryCallback.<anonymous closure>.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:26)
#33     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#34     StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:14)
#35     _rootRunUnary (dart:async/zone.dart:1192:38)
#36     _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#37     _FutureListener.handleValue (dart:async/future_impl.dart:141:18)
#38     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:682:45)
#39     Future._propagateToListeners (dart:async/future_impl.dart:711:32)
#40     Future._completeWithValue (dart:async/future_impl.dart:526:5)
#41     _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:36:15)
#42     _completeOnAsyncReturn (dart:async-patch/async_patch.dart:298:13)
#43     ApiRequester.request (package:_discoveryapis_commons/src/clients.dart)
#44     StackZoneSpecification._registerUnaryCallback.<anonymous closure>.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:26)
#45     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#46     StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:14)
#47     _rootRunUnary (dart:async/zone.dart:1192:38)
#48     _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#49     _FutureListener.handleValue (dart:async/future_impl.dart:141:18)
#50     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:682:45)
#51     Future._propagateToListeners (dart:async/future_impl.dart:711:32)
#52     Future._complete (dart:async/future_impl.dart:516:7)
#53     Stream.join.<anonymous closure> (dart:async/stream.dart:847:18)
#54     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#55     StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:119:48)
#56     _rootRun (dart:async/zone.dart:1180:38)
#57     _CustomZone.run (dart:async/zone.dart:1077:19)
#58     _CustomZone.runGuarded (dart:async/zone.dart:979:7)
#59     _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#60     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:15)
#61     _BufferingStreamSubscription._close (dart:async/stream_impl.dart:286:7)
#62     _SinkTransformerStreamSubscription._close (dart:async/stream_transformers.dart:98:11)
#63     _EventSinkWrapper.close (dart:async/stream_transformers.dart:25:11)
#64     _StringAdapterSink.close (dart:convert/string_conversion.dart:251:11)
#65     _Utf8ConversionSink.close (dart:convert/string_conversion.dart:302:20)
#66     _ConverterStreamEventSink.close (dart:convert/chunked_conversion.dart:83:18)
#67     _SinkTransformerStreamSubscription._handleDone (dart:async/stream_transformers.dart:143:24)
#68     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#69     StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:119:48)
#70     _rootRun (dart:async/zone.dart:1180:38)
#71     _CustomZone.run (dart:async/zone.dart:1077:19)
#72     _CustomZone.runGuarded (dart:async/zone.dart:979:7)
#73     _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#74     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:15)
#75     _BufferingStreamSubscription._close (dart:async/stream_impl.dart:286:7)
#76     _ForwardingStream._handleDone (dart:async/stream_pipe.dart:108:10)
#77     _ForwardingStreamSubscription._handleDone (dart:async/stream_pipe.dart:174:13)
#78     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#79     StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:119:48)
#80     _rootRun (dart:async/zone.dart:1180:38)
#81     _CustomZone.run (dart:async/zone.dart:1077:19)
#82     _CustomZone.runGuarded (dart:async/zone.dart:979:7)
#83     _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#84     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:15)
#85     _BufferingStreamSubscription._close (dart:async/stream_impl.dart:286:7)
#86     _ForwardingStream._handleDone (dart:async/stream_pipe.dart:108:10)
#87     _ForwardingStreamSubscription._handleDone (dart:async/stream_pipe.dart:174:13)
#88     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#89     StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:119:48)
#90     _rootRun (dart:async/zone.dart:1180:38)
#91     _CustomZone.run (dart:async/zone.dart:1077:19)
#92     _CustomZone.runGuarded (dart:async/zone.dart:979:7)
#93     _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#94     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:15)
#95     _BufferingStreamSubscription._close (dart:async/stream_impl.dart:286:7)
#96     _SyncStreamControllerDispatch._sendDone (dart:async/stream_controller.dart:787:19)
#97     _StreamController._closeUnchecked (dart:async/stream_controller.dart:644:7)
#98     _StreamController.close (dart:async/stream_controller.dart:637:5)
#99     _HttpParser._closeIncoming (dart:_http/http_parser.dart:1121:23)
#100    _HttpParser._doParse (dart:_http/http_parser.dart:815:15)
#101    _HttpParser._parse (dart:_http/http_parser.dart:328:7)
#102    _HttpParser._onData (dart:_http/http_parser.dart:850:5)
#103    StackZoneSpecification._registerUnaryCallback.<anonymous closure>.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:26)
#104    StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#105    StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:14)
#106    _rootRunUnary (dart:async/zone.dart:1192:38)
#107    _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#108    _CustomZone.runUnaryGuarded (dart:async/zone.dart:987:7)
#109    _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#110    _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#111    _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:779:19)
#112    _StreamController._add (dart:async/stream_controller.dart:655:7)
#113    _StreamController.add (dart:async/stream_controller.dart:597:5)
#114    _Socket._onData (dart:io-patch/socket_patch.dart:1982:41)
#115    StackZoneSpecification._registerUnaryCallback.<anonymous closure>.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:26)
#116    StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#117    StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:129:14)
#118    _rootRunUnary (dart:async/zone.dart:1192:38)
#119    _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#120    _CustomZone.runUnaryGuarded (dart:async/zone.dart:987:7)
#121    _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#122    _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#123    _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:779:19)
#124    _StreamController._add (dart:async/stream_controller.dart:655:7)
#125    _StreamController.add (dart:async/stream_controller.dart:597:5)
#126    _RawSecureSocket._sendReadEvent (dart:io/secure_socket.dart:1018:19)
#127    StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#128    StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:119:48)
#129    _rootRun (dart:async/zone.dart:1180:38)
#130    _CustomZone.run (dart:async/zone.dart:1077:19)
#131    _CustomZone.runGuarded (dart:async/zone.dart:979:7)
#132    _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1019:23)
#133    StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:209:15)
#134    StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:119:48)
#135    _rootRun (dart:async/zone.dart:1184:13)
#136    _CustomZone.run (dart:async/zone.dart:1077:19)
#137    _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:1003:23)
#138    Timer._createTimer.<anonymous closure> (dart:async-patch/timer_patch.dart:23:15)
#139    _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19)
#140    _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5)
#141    _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

Homepage URL isn't helpful. (-10 points)

Update the homepage field from pubspec.yaml: link to a website about the package or use the source repository URL.

Repository URL doesn't exist. (-10 points)

At the time of the analysis the repository field https://github.com/jhoytgithub/cn80listener.git was unreachable.

The package description is too short. (-20 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.

Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.7.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.12 1.14.13
meta 1.1.8 1.2.2
sky_engine 0.0.99
typed_data 1.1.6 1.2.0
vector_math 2.0.8 2.1.0-nullsafety
Dev dependencies
flutter_test