Flutter 레이아웃의 그림 원각 갤러리

텍스트 링크

자습서 추천

효과도

코드

import 'package:flutter/material.dart';
// Uncomment lines 7 and 10 to view the visual layout at runtime.
import 'package:flutter/rendering.dart' show debugPaintSizeEnabled;

void main() {
  debugPaintSizeEnabled = true; //   1
  runApp(MyApp());
}

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

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    var container = Container(
      decoration: BoxDecoration(
        color: Colors.black26,
      ),
      child: Column(  //   2
        children: [
          Row(
            children: [
              Expanded(
                child: Container(
                  decoration: BoxDecoration(  //    3
                    border: Border.all(width: 5.0, color: Colors.black),
                    borderRadius:
                    const BorderRadius.all(const Radius.circular(8.0)),
                  ),
                  margin: const EdgeInsets.all(4.0),
                  child: Image.asset('images/timg.jpeg'),
                ),
              ),
              Expanded(
                child: Container(
                  decoration: BoxDecoration(
                    border: Border.all(width: 10.0, color: Colors.black38),
                    borderRadius:
                    const BorderRadius.all(const Radius.circular(0.0)),
                  ),
                  margin: const EdgeInsets.all(4.0),
                  child: Image.asset('images/timg.jpeg'),
                ),
              ),
            ],
          ),
          Row(
            children: [
              Expanded(
                child: Container(
                  decoration: BoxDecoration(
                    border: Border.all(width: 10.0, color: Colors.red),
                    borderRadius:
                    const BorderRadius.all(const Radius.circular(8.0)),
                  ),
                  margin: const EdgeInsets.all(4.0),
                  child: Image.asset('images/timg.jpeg'),
                ),
              ),
              Expanded(
                child: Container(
                  decoration: BoxDecoration(
                    border: Border.all(width: 10.0, color: Colors.black38),
                    borderRadius:
                    const BorderRadius.all(const Radius.circular(8.0)),
                  ),
                  margin: const EdgeInsets.all(16.0),
                  child: Image.asset('images/timg.jpeg'),
                ),
              ),
            ],
          ),
        ],
      ),
    );

    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: container,
      ),
    );
  }
}

분석하다.