async_injector 0.1.2+2

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  • Changelog
  • Example
  • Installing
  • 0

Dependency injector with async initialization support

A simple usage example

import 'package:async_injector/async_injector.dart';

class DI {
  static Provider instance;

  static initProvider() async {
    var builder = ProviderBuilder();
    //preference
    builder
      ..moduleImpl((_) => SharedPreferences.getInstance())
      ..moduleImpl((provider) => PreferenceImpl(provider.get()));
    //api
    builder
      ..moduleImpl((provider) => AuthInterceptor(provider.get()))
      ..module(DioModule());

    instance = await builder.build();
  }

  static T get<T>() => instance.get<T>();

}

After build use get method by request type

SharedPreferences preference = DI.get()

You can return Future to the module and the result from it is added to the area

 ..moduleImpl((provider) => SharedPreferences.getInstance())
 

If need to provide super class from value, set this class in type

  ..moduleImpl<ApiGateway>((provider) => ApiGatewayImpl(provider.get()))

[0.1.0] - 20.11.2019. #

  • Initial release.

[0.1.1] - 21.11.2019. #

  • refactor and edit api.

[0.1.2] - 21.11.2019. #

  • edit description.

[0.1.2+1] - 21.11.2019. #

  • some minor fixs.

[0.1.2+2] - 21.11.2019. #

  • fix "лапере а п" in readme.

example/lib/main.dart

library example;

import 'package:flutter/material.dart';

import 'di.dart';

void main() async {
  await DI.initComponent();
  runApp(App());
}

class App extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    DateTime time = DI.get();
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: Text(time.toIso8601String()),
        ),
      ),
    );
  }
}

Use this package as a library

1. Depend on it

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


dependencies:
  async_injector: ^0.1.2+2

2. Install it

You can install packages from the command line:

with pub:


$ pub get

with Flutter:


$ flutter pub get

Alternatively, your editor might support pub get or 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:async_injector/async_injector.dart';
  
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Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0