Row 水平布局

main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(MaterialApp(
    title: "Row 水平布局",
    home: Scaffold(
        appBar: AppBar(
          title: Text("Row 水平布局"),
        ),
        body: Row(
          children: <Widget>[
            Expanded(
              child: Text(
                '左侧文本',
                textAlign: TextAlign.center,
              ),
            ),
            Expanded(
              child: Text(
                "中间文本",
                textAlign: TextAlign.center,
              ),
            ),
            Expanded(
              child: FittedBox(
                fit: BoxFit.contain,
                child: FlutterLogo(),
              ),
            )
          ],
        )),
  ));
}