design2ui 0.1.1

UI adaptation plugin, so that the interface and font display the same effect on the different ppi phones

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:design2ui/design2ui.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  @override
  Widget build(BuildContext context) {
    D2U.init(context);
    D2U.load(D2UDesign.fromCompare(540.0, 1080));
    return Scaffold(
      appBar: AppBar(
        title: Text('Demo'),
      ),
      body: SafeArea(
        child: Center(
          child: Column(
            children: <Widget>[
              Container(
                width: 378.0,
                height: 378.0,
                color: Colors.red,
                child: Center(
                  child: Text(
                    'width:378.0dp\nheight:378.0dp',
                    style: TextStyle(fontSize: 24.0),
                  ),
                ),
              ),
              Container(
                width: D2U.d2u(dp: 378.0),
                height: D2U.d2u(dp: 378.0),
                color: Colors.blue,
                child: Center(
                  child: Text(
                    'width:${D2U.d2u(dp: 378.0).floor()}dp\n'
                        'height:${D2U.d2u(dp: 378.0).floor()}dp\n'
                        'density:${D2U.defaultDensity * D2U.pixelRatio}\n'
                        'screen width:${D2U.screenWidth * D2U.pixelRatio}px\n'
                        'screen height:${D2U.screenHeight * D2U.pixelRatio}px',
                    style: TextStyle(
                      fontSize: D2U.d2ut(18.0),
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}