Row
Row是水平排列，所以主軸(mainAxis)就是水平。
crossAxis就是垂直。
crossAxis
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------------------> mainAxis
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有A、B、C，三個Text()，水平排列範例
ABC
| 屬性 | 說明 |
|---|---|
| mainAxisAlignment | 水平對齊 |
| crossAxisAlignment | 垂直對齊 |
| children | 子元素 |
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import 'package:flutter/material.dart';
void main() {
runApp(MainPage());
}
class MainPage extends StatelessWidget {
const MainPage({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Container(
width: 200,
height: 200,
color: Colors.yellow,
child: Row(
children: [
Text("A"),
Text("B"),
Text("C"),
],
),
),
));
}
}
對齊方式
垂直對齊 crossAxis
- start 上
- center 置中
- end 下
水平對齊 mainAxis
start 靠左對齊:
ABC......
end 靠右對齊
......ABC
spaceBetween: 左右各一個。
A...B...C
spaceAround: A與B與C，間距是3格。
..A...B...C..
spaceEvenly: 平均分配 ``` …A…B…C… ``
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import 'package:flutter/material.dart';
void main() {
runApp(MainPage());
}
class MainPage extends StatelessWidget {
const MainPage({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Container(
width: 200,
height: 200,
color: Colors.yellow,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text("A"),
Text("B"),
Text("C"),
],
),
),
));
}
}
