无法在 Flutter 中正确对齐小部件

Question

I have the following code, but i cant figure out, how to align the username to the left (next to the image) and the class-text to the right of the row. MainAxisAlignment.spaceBetween doesnt do the trick. I tried several different alignments on all the rows and columns but nothing is working. the only way i would get space between the two texts is by adding padding to one of the texts but this is not what want because the usernames have different sizes and the class text wouldnt be alligned to the right.

Container(
  width: 180,
  decoration: BoxDecoration(
    color: const Color(0xffe8d9c3),
    border: Border.all(color: Colors.transparent),
    borderRadius: const BorderRadius.all(
      Radius.circular(4),
    ),
    boxShadow: const [
      BoxShadow(
        color: Colors.black,
        blurRadius: 2.0,
        spreadRadius: 0.0,
        offset: Offset(0, 1),
      ),
    ],
  ),
  child: Row(
    //mainAxisAlignment: MainAxisAlignment.spaceEvenly,
    children: [
      const CircleAvatar(
        backgroundImage: NetworkImage(
          'https://www.woolha.com/media/2020/03/eevee.png',
        ),
      ),
      const SizedBox(
        width: 5,
      ),
      Column(
        //mainAxisAlignment: MainAxisAlignment.spaceBetween,
        //crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              StreamBuilder<DocumentSnapshot>(
                stream: userdoc.snapshots(),
                builder: (BuildContext context,
                    AsyncSnapshot<DocumentSnapshot> snapshot) {
                  return Text(
                    "${snapshot.data?["username"]}",
                    style: const TextStyle(
                      fontSize: 10,
                      color: Colors.black,
                    ),
                  );
                },
              ),
              const Text(
                "Class 8",
                style: TextStyle(
                  fontSize: 10,
                  color: Colors.black,
                ),
              ),
            ],
          ),
          Stack(
            clipBehavior: Clip.none,
            children: const [
              SizedBox(
                width: 120,
                height: 15,
                child: LinearProgressIndicator(
                  value: 0.3,
                  backgroundColor: Color(0xff816840),
                  color: Color(0xffffc518),
                ),
              ),
              Positioned(
                right: 10,
                top: 2,
                child: Text(
                  "2918",
                  style: TextStyle(
                    fontSize: 10,
                    color: Colors.white,
                  ),
                ),
              ),
            ],
          ),
        ],
      ),
    ],
  ),
)

Answer 1

you can use Spacer() widget between them

Answer 2

import 'package:flutter/material.dart';

void main() {
  runApp(const MaterialApp(
    home: MyApp(),
  ));
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
          body: Center(
        child: Container(
          width: 180,
          padding: EdgeInsets.all(5),
          decoration: BoxDecoration(
            color: const Color(0xffe8d9c3),
            border: Border.all(color: Colors.transparent),
            borderRadius: const BorderRadius.all(
              Radius.circular(4),
            ),
            boxShadow: const [
              BoxShadow(
                color: Colors.black,
                blurRadius: 2.0,
                spreadRadius: 0.0,
                offset: Offset(0, 1),
              ),
            ],
          ),
          child: Row(
            // crossAxisAlignment: CrossAxisAlignment.center,
            //mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              const CircleAvatar(
                backgroundImage: NetworkImage(
                  'https://www.woolha.com/media/2020/03/eevee.png',
                ),
              ),
              const SizedBox(
                width: 5,
              ),
              Expanded(
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    Row(
                      children: const [
                        Text(
                          "username",
                          style: TextStyle(
                            fontSize: 10,
                            color: Colors.black,
                          ),
                        ),
                        Spacer(),
                        Text(
                          "Class 8",
                          style: TextStyle(
                            fontSize: 10,
                            color: Colors.black,
                          ),
                        ),
                      ],
                    ),
                    Stack(
                      clipBehavior: Clip.none,
                      children: const [
                        SizedBox(
                          height: 15,
                          child: LinearProgressIndicator(
                            value: 0.5,
                            backgroundColor: Color(0xff816840),
                            color: Color(0xffffc518),
                          ),
                        ),
                        Positioned(
                          right: 10,
                          top: 2,
                          child: Text(
                            "2918",
                            style: TextStyle(
                              fontSize: 10,
                              color: Colors.white,
                            ),
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ],
          ),
        ),
      )),
    );
  }
}