├── LICENSE
├── README.md
├── lib
    ├── call
    │   ├── call.dart
    │   └── notify.dart
    └── main.dart
└── pubspec.yaml


/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2020 亢少军
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
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1 | #dart-call
2 | Flutter Dart消息派发及监听使用的库 简单实用 可替代EventBus 
3 | 


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/lib/call/call.dart:
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 1 | //事件派发及监听使用
 2 | class Call {
 3 | 
 4 |   static Map<String, List<Function>> _callMap = Map<String, List<Function>>();
 5 | 
 6 |   static Future<void> addCallBack(String type, Function callback) async {
 7 |     if(_callMap[type] == null ) {
 8 |       _callMap[type] = [];
 9 |     }
10 |     if(await hasCallBack(type, callback) == false) {
11 |       _callMap[type].add(callback);
12 |     }
13 |   }
14 | 
15 |   static Future<bool> hasCallBack(type,Function callBack) async {
16 |     if(_callMap[type] == null ) {
17 |       return false;
18 |     }
19 |     return _callMap[type].contains(callBack);
20 |   }
21 | 
22 |   static Future<void> removeCallBack(type,Function callBack) async {
23 |     if(_callMap[type] == null ) {
24 |       return;
25 |     }
26 |     _callMap[type].removeWhere((element) => element == callBack);
27 |   }
28 | 
29 |   static Future<void> dispatch(String type, {dynamic data = null }) async {
30 |     if(_callMap[type] == null) {
31 |       throw Exception('回调事件 $type 没有监听，发送失败');
32 |     }
33 |     _callMap[type].forEach((element) {
34 |       element(data);
35 |     });
36 |   }
37 | 
38 | }


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/lib/call/notify.dart:
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1 | //消息类型
2 | class Notify {
3 | 
4 |   //测试消息类型
5 |   static const TEST_NOTIFY = 'test_notify';
6 | 
7 | 
8 | 
9 | }


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/lib/main.dart:
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  1 | import 'package:flutter/material.dart';
  2 | import './call/call.dart';
  3 | import './call/notify.dart';
  4 | 
  5 | void main() {
  6 |   runApp(MyApp());
  7 | }
  8 | 
  9 | class MyApp extends StatelessWidget {
 10 | 
 11 |   @override
 12 |   Widget build(BuildContext context) {
 13 |     return MaterialApp(
 14 |       title: 'Call示例',
 15 |       theme: ThemeData(
 16 | 
 17 |         primarySwatch: Colors.blue,
 18 |       ),
 19 |       home: MyHomePage(title: 'Call示例'),
 20 |     );
 21 |   }
 22 | }
 23 | 
 24 | class MyHomePage extends StatefulWidget {
 25 |   MyHomePage({Key key, this.title}) : super(key: key);
 26 | 
 27 | 
 28 |   final String title;
 29 | 
 30 |   @override
 31 |   _MyHomePageState createState() => _MyHomePageState();
 32 | }
 33 | 
 34 | class _MyHomePageState extends State<MyHomePage> {
 35 |   int _counter = 0;
 36 | 
 37 |   void _incrementCounter() {
 38 | 
 39 |     var data = {
 40 |       'userId':111,
 41 |       'userName':'玄微子'
 42 |     };
 43 | 
 44 |     Call.dispatch(Notify.TEST_NOTIFY,data:data);
 45 |   }
 46 | 
 47 |   @override
 48 |   Widget build(BuildContext context) {
 49 | 
 50 |     return Scaffold(
 51 |       appBar: AppBar(
 52 |         title: Text(widget.title),
 53 |       ),
 54 |       body: Center(
 55 |         child: TestWidget(),
 56 |       ),
 57 |       floatingActionButton: FloatingActionButton(
 58 |         onPressed: _incrementCounter,
 59 |         tooltip: '点击派发消息',
 60 |         child: Icon(Icons.add),
 61 |       ),
 62 |     );
 63 |   }
 64 | }
 65 | 
 66 | 
 67 | class TestWidget extends StatefulWidget{
 68 | 
 69 |   TestWidget();
 70 | 
 71 |   @override
 72 |   TestWidgetState createState() => TestWidgetState();
 73 | 
 74 | }
 75 | 
 76 | class TestWidgetState extends State<TestWidget>{
 77 | 
 78 |   String userName = '';
 79 | 
 80 |   @override
 81 |   void initState() {
 82 |     super.initState();
 83 | 
 84 |     Call.addCallBack(Notify.TEST_NOTIFY,this._callBack);
 85 | 
 86 |   }
 87 | 
 88 |   _callBack(data) {
 89 |     this.setState(() {
 90 |       userName = data['userName'];
 91 |     });
 92 |   }
 93 | 
 94 |   @override
 95 |   Widget build(BuildContext context) {
 96 |     return Container(
 97 |       child: Text("监听到的数据为:" + userName),
 98 |     );
 99 |   }
100 | 
101 | }
102 | 


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/pubspec.yaml:
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 1 | name: dart_call
 2 | description: A new Flutter application.
 3 | 
 4 | # The following line prevents the package from being accidentally published to
 5 | # pub.dev using `pub publish`. This is preferred for private packages.
 6 | publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 7 | 
 8 | # The following defines the version and build number for your application.
 9 | # A version number is three numbers separated by dots, like 1.2.43
10 | # followed by an optional build number separated by a +.
11 | # Both the version and the builder number may be overridden in flutter
12 | # build by specifying --build-name and --build-number, respectively.
13 | # In Android, build-name is used as versionName while build-number used as versionCode.
14 | # Read more about Android versioning at https://developer.android.com/studio/publish/versioning
15 | # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
16 | # Read more about iOS versioning at
17 | # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
18 | version: 1.0.0+1
19 | 
20 | environment:
21 |   sdk: ">=2.7.0 <3.0.0"
22 | 
23 | dependencies:
24 |   flutter:
25 |     sdk: flutter
26 | 
27 | 
28 |   # The following adds the Cupertino Icons font to your application.
29 |   # Use with the CupertinoIcons class for iOS style icons.
30 |   cupertino_icons: ^0.1.3
31 | 
32 | dev_dependencies:
33 |   flutter_test:
34 |     sdk: flutter
35 | 
36 | # For information on the generic Dart part of this file, see the
37 | # following page: https://dart.dev/tools/pub/pubspec
38 | 
39 | # The following section is specific to Flutter.
40 | flutter:
41 | 
42 |   # The following line ensures that the Material Icons font is
43 |   # included with your application, so that you can use the icons in
44 |   # the material Icons class.
45 |   uses-material-design: true
46 | 
47 |   # To add assets to your application, add an assets section, like this:
48 |   # assets:
49 |   #   - images/a_dot_burr.jpeg
50 |   #   - images/a_dot_ham.jpeg
51 | 
52 |   # An image asset can refer to one or more resolution-specific "variants", see
53 |   # https://flutter.dev/assets-and-images/#resolution-aware.
54 | 
55 |   # For details regarding adding assets from package dependencies, see
56 |   # https://flutter.dev/assets-and-images/#from-packages
57 | 
58 |   # To add custom fonts to your application, add a fonts section here,
59 |   # in this "flutter" section. Each entry in this list should have a
60 |   # "family" key with the font family name, and a "fonts" key with a
61 |   # list giving the asset and other descriptors for the font. For
62 |   # example:
63 |   # fonts:
64 |   #   - family: Schyler
65 |   #     fonts:
66 |   #       - asset: fonts/Schyler-Regular.ttf
67 |   #       - asset: fonts/Schyler-Italic.ttf
68 |   #         style: italic
69 |   #   - family: Trajan Pro
70 |   #     fonts:
71 |   #       - asset: fonts/TrajanPro.ttf
72 |   #       - asset: fonts/TrajanPro_Bold.ttf
73 |   #         weight: 700
74 |   #
75 |   # For details regarding fonts from package dependencies,
76 |   # see https://flutter.dev/custom-fonts/#from-packages
77 | 


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