flutter_service_container

Useful widgets for service_container package.

Features

Widgets:

1. ServicesRoot provide a root service provider for its child.
2. ServicesScope provide a scope service provider for its child.
3. Services inherited widget shared service provider for its child.
4. ServiceConsumer consumes services.
5. DeveloperLogPrinter forwards logs to the dart:developer log() API.

Get IServiceProvider instance:

1. Services.of(context)
   Get the IServiceProvider instance from the nearest Services inherited widget. Notes that ServicesRoot and ServicesScope will create Services inherited widget.
2. ServiceConsumer(builder: (context, provider){})
   The IServiceProvider instance from the nearest Services inherited widget will pass into the provider parameter of the builder.
3. Routes If you want to get the IServiceProvider that created or provided by other route, use the Services inherited widget to wrap the widgets of the new route child widget.

Getting started

Install

flutter pub add flutter_service_container

Usage

Here's a short example. For a full example, check out example.

// define a logger service
ServiceDescriptor<Logger> $exampleLogger = ServiceDescriptor.singleton((p) => Logger("Example"));

void main() {
  // configure the container, use developer log printer
  containerConfigure.useDeveloperLogPrinter();

  /// Use ServicesRoot to provide a root service provider for the app.
  runApp(
    ServicesRoot(
      printDebugLogs: true,
      child: const MyApp(),
    ),
  );
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    final logger = Services.of(context).getService($exampleLogger);
    logger.info("$MyApp is building");
    return MaterialApp(
      title: 'Flutter service Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: MyHomePage(title: "Flutter service example"),
    );
  }
}

Logging

Use logging package to logging.
containerConfigure.useDeveloperLogPrinter() extension method will override the default log printer that defined in service_container package and use DeveloperLogPrinter.
DeveloperLogPrinter forwards logs to the dart:developer log() API.

Libraries

flutter_service_container

Provide useful widgets for service_container package.