플러터(flutter) - Row 세로 정렬 방법 (CrossAxisAlignment)

Row 위젯에서는 crossAxisAlignment 인자값을 이용하여 세로 방향으로 정렬할 수 있다.

// 예시
Row(
  crossAxisAlignment: CrossAxisAlignment.stretch,
  ...
);

 

CrossAxisAlignment.start

child 위젯들을 상단에 위치시킨다.

import "package:flutter/material.dart";

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "Row 위젯 예시",
      home: Example(),
    );
  }
}

class Example extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Container(
          height: double.infinity,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.start, // 상단에 붙게 함
            children: [
              Container(
                width: 100,
                height: 100,
                color: Colors.red,
                child: Text("Container1"),
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
                child: Text("Container2"),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

CrossAxisAlignment.start

 

CrossAxisAlignment.center

child 위젯들을 가운데에 위치시킨다.

class Example extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Container(
          height: double.infinity,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.center, // 가운데로 위치시킴
            children: [
              Container(
                width: 100,
                height: 100,
                color: Colors.red,
                child: Text("Container1"),
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
                child: Text("Container2"),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

CrossAxisAlignment.center

 

CrossAxisAlignment.end

child 위젯들을 하단에 위치시킨다.

class Example extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Container(
          height: double.infinity,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.end, // 하단에 붙임
            children: [
              Container(
                width: 100,
                height: 100,
                color: Colors.red,
                child: Text("Container1"),
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
                child: Text("Container2"),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

CrossAxisAlignment.end

 

CrossAxisAlignment.strech

child 위젯들을 최대 크기로 확장한다.

• child 위젯들에 height 크기가 설정되어 있지만 무시됨.

class Example extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Container(
          height: double.infinity,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.stretch, // 최대 넓이로 확장시킴
            children: [
              Container(
                width: 100,
                height: 100,
                color: Colors.red,
                child: Text("Container1"),
              ),
              Container(
                width: 100,
                height: 100,
                color: Colors.blue,
                child: Text("Container2"),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

CrossAxisAlignment.strech

 

---

다른 글

2021/01/03 - [Flutter] - 플러터(flutter) - Row 가로 정렬 방법 (MainAxisAlignment)

플러터(flutter) - Row 가로 정렬 방법 (MainAxisAlignment)

2021/01/03 - [Flutter] - 플러터(flutter) - Column 가로 정렬 방법 (CrossAxisAlignment)

플러터(flutter) - Column 가로 정렬 방법 (CrossAxisAlignment)