fluid_layout 0.0.6

Fluid layout

example/lib/main.dart

import 'package:fluid_layout/fluid_layout.dart';
import 'package:flutter/material.dart';
import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          // This is the theme of your application.
          //
          // Try running your application with "flutter run". You'll see the
          // application has a blue toolbar. Then, without quitting the app, try
          // changing the primarySwatch below to Colors.green and then invoke
          // "hot reload" (press "r" in the console where you ran "flutter run",
          // or simply save your changes to "hot reload" in a Flutter IDE).
          // Notice that the counter didn't reset back to zero; the application
          // is not restarted.
          primarySwatch: Colors.blue,
        ),
        home: MyHomePage(
          title: 'Fluid flutter',
        ));
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: FluidLayout(
        child: Builder(builder: (context)=>
         Fluid(
        child: Stack(
          fit: StackFit.expand,
          children: <Widget>[
            Container(color: Colors.grey),
            FluidStaggeredGridView.fluid(
              children: [
                BreakpointColumn.extent(
                  crossAxisCellCount: FluidLayout.of(context).fluidBreakpoint.isLargerThanM ? 3 : 6,
            mainAxisExtent: 40,
            child:
                Container(
                    color: Colors.green,
                    child: new Center(
                      child: new CircleAvatar(
                        backgroundColor: Colors.white,
                        child: new Text('Try'),
                      ),
                    )),),
                BreakpointColumn.extent(
                  crossAxisCellCount: FluidLayout.of(context).fluidBreakpoint.isLargerThanM ? 3 : 6,
                  mainAxisExtent: 40,
                  child:
                  Container(
                      color: Colors.green,
                      child: new Center(
                        child: new CircleAvatar(
                          backgroundColor: Colors.white,
                          child: new Text('Try'),
                        ),
                      )),),
                BreakpointColumn.extent(
                  crossAxisCellCount: FluidLayout.of(context).fluidBreakpoint.isLargerThanM ? 3 : 6,
                  mainAxisExtent: 40,
                  child:
                  Container(
                      color: Colors.green,
                      child: new Center(
                        child: new CircleAvatar(
                          backgroundColor: Colors.white,
                          child: new Text('Try'),
                        ),
                      )),),
                BreakpointColumn.extent(
                  crossAxisCellCount: FluidLayout.of(context).fluidBreakpoint.isLargerThanM ? 3 : 6,
                  mainAxisExtent: 40,
                  child:
                  Container(
                      color: Colors.green,
                      child: new Center(
                        child: new CircleAvatar(
                          backgroundColor: Colors.white,
                          child: new Text('Try'),
                        ),
                      )),),
              ],
            ),
            Center(
              // Center is a layout widget. It takes a single child and positions it
              // in the middle of the parent.
              child: Column(
                // Column is also a layout widget. It takes a list of children and
                // arranges them vertically. By default, it sizes itself to fit its
                // children horizontally, and tries to be as tall as its parent.
                //
                // Invoke "debug painting" (press "p" in the console, choose the
                // "Toggle Debug Paint" action from the Flutter Inspector in Android
                // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
                // to see the wireframe for each widget.
                //
                // Column has various properties to control how it sizes itself and
                // how it positions its children. Here we use mainAxisAlignment to
                // center the children vertically; the main axis here is the vertical
                // axis because Columns are vertical (the cross axis would be
                // horizontal).
                mainAxisAlignment: MainAxisAlignment.center,
                children: <Widget>[
                  Text(
                    'You have pushed the button this many times:',
                  ),
                  Text(
                    '$_counter',
                    style: Theme.of(context).textTheme.display1,
                  ),
                ],
              ),
            ),
          ],
        ),
      ))),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}