nester 0.0.7

Flutter library to automatically convert a list of widgets in a nested group of widget.

nester

Flutter library to convert a list of widgets in a nested group of widgets.
A beautifier plugin to easing your code syntax.

Features

• Ease the code syntax
• Can manage like a generic list
• Can manage like a queue

Installation

• Add the dependency

dependencies:
  nester: ^0.0.7

• Import the package

import 'package:nester/nester.dart';

Example Usage

NESTER LIST

Will treated the as simple list. You are allowed to have just one "next" reference for each item in the list. This is the most simple way to use Nester. Recommended when you mostly have "one child" Widget inside your list.

Original code

   return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: const Text("Example"),
        ),
        body: Padding(
          padding: const EdgeInsets.all(20),
          child: Container(
            color: Colors.black12,
            child: Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: const <Widget>[Text("Just a description")],
              ),
            ),
          ),
        ),
      );

Using Nester

   return Nester.list([
        (next) => MaterialApp(
              title: 'Flutter Demo',
              theme: ThemeData(primarySwatch: Colors.blue),
              home: next,
            ),
        (next) => Scaffold(
              appBar: AppBar(title: const Text("Example")),
              body: next,
            ),
        (next) => Padding(
              padding: const EdgeInsets.all(20),
              child: next,
            ),
        (next) => Container(
              color: Colors.black12,
              child: next,
            ),
        (next) => Center(child: next),
        (_) => Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: const <Widget>[Text("Just a text")],
            ),
  ]);

NESTER QUEUE

The Widget list will be treated like a queue. Every "next" calling will consume the next item in the list. This is useful when you using "multi-child" Widgets inside your list.

Original code

   return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: Scaffold(
        appBar: AppBar(
          title: const Text("Example"),
        ),
        body: Padding(
          padding: const EdgeInsets.all(50),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: const [
              Text("Left", textAlign: TextAlign.left),
              Text("Center", textAlign: TextAlign.center),
              Text("Right", textAlign: TextAlign.right),
            ],
          ),
        ),
      ),
    );

Using Nester

    return Nester.queue([
      (next) => MaterialApp(
            title: 'Flutter Demo',
            theme: ThemeData(primarySwatch: Colors.blue),
            home: next(),
          ),
      (next) => Scaffold(
            appBar: next() as PreferredSizeWidget,
            body: next(),
          ),
      (_) => AppBar(title: const Text("Example")),
      (next) => Padding(
            padding: const EdgeInsets.all(50),
            child: next(),
          ),
      (next) => Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: next(take: 3), // or [ next(), next(), next() ],
          ),
      (_) => const Text("Left", textAlign: TextAlign.left),
      (_) => const Text("Center", textAlign: TextAlign.center),
      (_) => const Text("Right", textAlign: TextAlign.right),
    ]);

The next({int skip, int take}) accept two parameters.

• Param skip will skip n calls on the queue list. Note that the function wil NOT check for nested calling, just skip the next n items inside the list.
• Param take will consuming n items on the same level. If a item have a nested calling will not count as consumed. The result will be an array of Widgets.

NOTE that skip param will be applied before take.