编辑为Flutter 2.0.0

当你在屏幕上有一个应用程序栏时，下面的答案就不再适用了。现在需要配置AppBarTheme。亮度和AppBarTheme。在这种情况下，systemOverlayStyle正确。

回答

而不是经常建议SystemChrome.setSystemUIOverlayStyle()，这是一个系统范围的服务，不会在不同的路由上重置，你可以使用AnnotatedRegion<SystemUiOverlayStyle>，这是一个小部件，只对你包装的小部件有效。

AnnotatedRegion<SystemUiOverlayStyle>(
   value: SystemUiOverlayStyle(
      statusBarColor: Colors.white,
  ),
  child: Scaffold(
      ...
  ),
)

这招对我很管用:

进口服务

导入的包:颤振/ services.dart ';

然后添加:

@override
  Widget build(BuildContext context) {

    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
      statusBarColor: Colors.white,
      statusBarBrightness: Brightness.dark,
    ));
    return MaterialApp(home: Scaffold(

以下是你需要知道的一切:

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

void main() {
  SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
    systemNavigationBarColor: Colors.amber, // navigation bar color
    statusBarColor: Colors.white, // status bar color
    statusBarIconBrightness: Brightness.dark, // status bar icon color
    systemNavigationBarIconBrightness: Brightness.dark, // color of navigation controls
  ));
  runApp(MyApp());
}

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,
          ),
        ),
      ),
    );
  }
}

如果你想改变整个应用程序的状态颜色，你可以像这样使用primaryColorDark属性:

void main() {
  runApp(
    MaterialApp(
      home: HomeWidget(),
      theme: ThemeData(
        primaryColorDark: Colors.white,
      ),
    ),
  );
}

这(在脚手架内部)创建了一个带有浅色内容的黑色状态栏。(没有Appbar)

appBar: AppBar(
      toolbarHeight: 0,
      backgroundColor: Colors.black,
      systemOverlayStyle: SystemUiOverlayStyle.light,
    ),