How to set rounded corner of TextSpan in Flutter

Question

I want to set rounded corner of Textspan in flutter, I think class Paint is needed, but I cannot figure out how to do that.

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: new AppBar(),
        body: new RichText(
          text: new TextSpan(
            text: null,
            style: TextStyle(fontSize: 20.0, color: Colors.black),
            children: <TextSpan>[
              new TextSpan(
                text: 'inactive ',),
              new TextSpan(
                  text: 'active',
                  style: new TextStyle(
                    color: Colors.white,
                    background: Paint()
                      ..color = Colors.redAccent,
                  )),
            ],
          ),
        ),
      ),
    );
  }
}

Is there a way to use Textspan to achieve that instead of using a Container wrapping Text?

Answer 1

Without using Container or something else - I can see only one way to make corners rounded

TextSpan(
    text: 'active',
    style: TextStyle(
        fontSize: 20.0,
        color: Colors.white,
        background: Paint()
          ..strokeWidth = 24.0
          ..color = Colors.red
          ..style = PaintingStyle.stroke
          ..strokeJoin = StrokeJoin.round))

But in this case there are paddings around text, so I doubt this is proper way

Answer 2

You can use RichText with WidgetSpan, then combine it with line height

RichText(
  text: TextSpan(
    children: [
      WidgetSpan(
        child: Container(
          child: Text(
            addressItem.deliveryAddressType == "home" ? "Nhà" : "Văn phòng",
            style: TextStyle(
              fontFamily: AppFonts.SFUITextMedium,
              color: AppColors.wram_grey,
              fontSize: AppFonts.textSizeSmall,
            ),
          ),
          decoration: BoxDecoration(
              color: AppColors.header_grey, borderRadius: BorderRadius.all(Radius.circular(20))),
          padding: EdgeInsets.fromLTRB(6, 2, 6, 2),
          margin: EdgeInsets.only(right: 5),
        ),
      ),
      TextSpan(
        text: '${addressItem.street}, ${addressItem.ward}, ${addressItem.city}, ${addressItem.region}',
        style: TextStyle(
            fontFamily: AppFonts.SFUITextMedium,
            color: AppColors.wram_grey,
            fontSize: AppFonts.textSizeMedium,
            height: 1.5),
      ),
    ],
  ),
),