没有一个答案似乎提到，你可以在你的主MaterialApp小部件ThemeData函数。

return MaterialApp(
  theme: ThemeData(
    appBarTheme: const AppBarTheme(
      systemOverlayStyle: SystemUiOverlayStyle(
        statusBarColor: Colors.white,
      ),
    ),
  ),
),

这也可以在darkTheme ThemeData中完成。

完整的示例

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  runApp(const MyApp());
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      debugShowCheckedModeBanner: false,
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return AnnotatedRegion<SystemUiOverlayStyle>(
      value: const SystemUiOverlayStyle(
        systemNavigationBarColor: Colors.red, // navigation bar color
        systemNavigationBarIconBrightness: Brightness.light, //navigation bar icons' color
      ),
      child: Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.red,
          title: const Text('data'),
          systemOverlayStyle: SystemUiOverlayStyle.dark.copyWith(
            statusBarColor: Colors.red,
            statusBarIconBrightness: Brightness.light,
          ),
        ),
      ),
    );
  }
}

在主要的。飞镖文件 导入服务如下

  import 'package:flutter/services.dart';

在build方法中，在返回之前添加这一行

SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
    statusBarColor: Colors.orange
)); 

是这样的:

@override
 Widget build(BuildContext context) {
   SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
       statusBarColor: CustomColors.appbarcolor
    ));
    return MaterialApp(
    home: MySplash(),
    theme: ThemeData(
      brightness: Brightness.light,
      primaryColor: CustomColors.appbarcolor,
    ),
  );
 }

没有一个答案似乎提到，你可以在你的主MaterialApp小部件ThemeData函数。

return MaterialApp(
  theme: ThemeData(
    appBarTheme: const AppBarTheme(
      systemOverlayStyle: SystemUiOverlayStyle(
        statusBarColor: Colors.white,
      ),
    ),
  ),
),

这也可以在darkTheme ThemeData中完成。

你也可以在SliverAppBar中使用这个，不要忘记使用backwardsCompatibility: false如果你跳过这个属性，它将不起作用。参见doc

@override
  Widget build(BuildContext context) {    
    return Scaffold(
      appBar: null,
      body: CustomScrollView(
        slivers: <Widget>[
          SliverAppBar(
              systemOverlayStyle: SystemUiOverlayStyle(
                  statusBarColor: Colors.transparent,
                  statusBarIconBrightness: Brightness.dark),
              backwardsCompatibility: false,
//... remaining code and close braces..

在Flutter 2.8:

AppBar(
    backgroundColor: YOUR_COLOR_HERE,
    toolbarHeight: 0,
);