什么是 flutter 中 textTheme 的替代品。 我收到以下错误

Question

I'm new to flutter getting this error. can anyone please help with this? trying to and text styles.

import 'package:flutter/material.dart';
import 'screens/location_detail/location_detail.dart';
import 'style.dart';


class App extends StatelessWidget{

  @override
  Widget build(BuildContext context) {
   return MaterialApp(
     home:LocationDetail(),
     theme:ThemeData(
       appBarTheme: AppBarTheme(
         textTheme: TextTheme(title: AppBarTextStyle)
       )
     )
   );
  }
}

Answer 1

You can use toolBarTextStyle and titleTextStyle instead of textTheme . For more details please refer below link textTheme

Answer 2

You can use titleTextStyle like this:

appBarTheme: AppBarTheme(
     titleTextStyle: TextStyle(color: Colors.blue)
)

appBar: AppBar(
    title: Text(
      ' ',
      style: Theme.of(context).appBarTheme.titleTextStyle,
    ),