我正在尝试改变状态栏的颜色为白色。我偶然发现了这家酒吧。我尝试在我的dart文件中使用示例代码。
在我的应用程序中完全正常
import 'package:flutter_statusbarcolor/flutter_statusbarcolor.dart';
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
FlutterStatusbarcolor.setStatusBarColor(Colors.white);
return MaterialApp(
title: app_title,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: HomePage(title: home_title),
);
}
}
(包)
乌利希期刊指南: 推荐解决方案(Flutter 2.0及以上)
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.white
));
更新Flutter 2.0(推荐):
在最新的Flutter版本上,您应该使用:
AppBar(
systemOverlayStyle: SystemUiOverlayStyle(
// Status bar color
statusBarColor: Colors.red,
// Status bar brightness (optional)
statusBarIconBrightness: Brightness.dark, // For Android (dark icons)
statusBarBrightness: Brightness.light, // For iOS (dark icons)
),
)
只有Android(更灵活):
import 'package:flutter/services.dart';
void main() {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
systemNavigationBarColor: Colors.blue, // navigation bar color
statusBarColor: Colors.pink, // status bar color
));
}
iOS和Android:
appBar: AppBar(
backgroundColor: Colors.red, // Status bar color
)
这有点老套,但适用于iOS和Android:
Container(
color: Colors.red, // Status bar color
child: SafeArea(
left: false,
right: false,
bottom: false,
child: Scaffold(
appBar: AppBar(
backgroundColor: Colors.blue, // App bar color
),
),
),
)
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,
),
);
}
我不能直接在帖子中评论,因为我还没有必要的声誉,但作者问了以下问题:
唯一的问题是背景是白色的,但时钟,无线和其他文本和图标也是白色的。我不知道为什么!!
对于任何来到这个帖子的人来说,这是对我有用的方法。状态栏的文本颜色由flutter/material.dart中的亮度常数决定。要改变这一点,调整SystemChrome解决方案,如下所示来配置文本:
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.red,
statusBarBrightness: Brightness.dark,
));
亮度的可能值为亮度。黑暗和光明。
文档: https://api.flutter.dev/flutter/dart-ui/Brightness-class.html https://api.flutter.dev/flutter/services/SystemUiOverlayStyle-class.html
使它像你的应用程序栏颜色
import 'package:flutter/material.dart';
Widget build(BuildContext context) {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.transparent,
systemNavigationBarColor: Colors.transparent,
));
}
对于那些使用AppBar的人
如果你使用AppBar,那么更新状态栏颜色就像这样简单:
Scaffold(
appBar: AppBar(
// Use [Brightness.light] for black status bar
// or [Brightness.dark] for white status bar
// https://stackoverflow.com/a/58132007/1321917
brightness: Brightness.light
),
body: ...
)
申请所有应用程序栏:
return MaterialApp(
theme: Theme.of(context).copyWith(
appBarTheme: Theme.of(context)
.appBarTheme
.copyWith(brightness: Brightness.light),
...
),
对于那些不使用AppBar的人
用AnnotatedRegion包装您的内容,并将值设置为SystemUiOverlayStyle。light或SystemUiOverlayStyle.dark:
return AnnotatedRegion<SystemUiOverlayStyle>(
// Use [SystemUiOverlayStyle.light] for white status bar
// or [SystemUiOverlayStyle.dark] for black status bar
// https://stackoverflow.com/a/58132007/1321917
value: SystemUiOverlayStyle.light,
child: Scaffold(...),
);
我认为这对你有帮助:
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
systemNavigationBarColor: Colors.white, // navigation bar color
statusBarColor: Colors.white, // status bar color
statusBarIconBrightness: Brightness.dark, // status bar icons' color
systemNavigationBarIconBrightness: Brightness.dark, //navigation bar icons' color
));
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(
...
),
)
这个也可以
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark);
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.light);
@override
Widget build(BuildContext context) {
return Theme(
data: ThemeData(brightness: Brightness.dark),
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(
当您不使用AppBar时,更改状态栏的颜色
首先导入这个
import 'package:flutter/services.dart';
现在使用下面的代码改变状态栏的颜色在你的应用程序,当你不使用AppBar
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark.copyWith(
statusBarColor: AppColors.statusBarColor,/* set Status bar color in Android devices. */
statusBarIconBrightness: Brightness.dark,/* set Status bar icons color in Android devices.*/
statusBarBrightness: Brightness.dark)/* set Status bar icon color in iOS. */
);
在iOS中使用安全区域时,更改状态栏的颜色
Scaffold(
body: Container(
color: Colors.red, /* Set your status bar color here */
child: SafeArea(child: Container(
/* Add your Widget here */
)),
),
);
return Scaffold(
backgroundColor: STATUS_BAR_COLOR_HERE,
body: SafeArea(
child: scaffoldBody(),
),
);
我对所有提到的答案都有问题,除了我自己做的解决方案:容器(宽度:MediaQuery.of(context).size。MediaQuery.of(context).padding. width, height:上衣,颜色:颜色。绿色) 对于视图,哪里没有appBar添加我只是使用容器的背景,准确的高度匹配状态栏的高度。在这个场景中,每个视图可以有不同的状态颜色,我不需要担心和思考一些逻辑,某种错误的视图有某种错误的颜色。
这是目前为止最好的方法,它不需要额外的插件。
Widget emptyAppBar(){
return PreferredSize(
preferredSize: Size.fromHeight(0.0),
child: AppBar(
backgroundColor: Color(0xFFf7f7f7),
brightness: Brightness.light,
)
);
}
在你的刑台上像这样叫它
return Scaffold(
appBar: emptyAppBar(),
.
.
.
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());
}
它可以通过两个步骤来实现:
使用FlutterStatusbarcolor包将状态栏颜色设置为与页面背景相匹配 使用AppBar设置状态栏按钮(电池,wifi等)的颜色。亮度的财产
如果你有一个AppBar:
@override
Widget build(BuildContext context) {
FlutterStatusbarcolor.setStatusBarColor(Colors.white);
return Scaffold(
appBar: AppBar(
brightness: Brightness.light,
// Other AppBar properties
),
body: Container()
);
}
如果你不想在页面中显示应用程序栏:
@override
Widget build(BuildContext context) {
FlutterStatusbarcolor.setStatusBarColor(Colors.white);
return Scaffold(
appBar: AppBar(
brightness: Brightness.light,
elevation: 0.0,
toolbarHeight: 0.0, // Hide the AppBar
),
body: Container()
}
现有的解决方案对我没有帮助,因为我不使用AppBar,而且我不想在用户切换应用程序主题时做出声明。我需要一种反应式的方式来切换亮暗模式,发现AppBar使用了一个名为Semantics的小部件来设置状态栏的颜色。
基本上,我是这样做的:
return Semantics(
container: false, // don't make it a new node in the hierarchy
child: AnnotatedRegion<SystemUiOverlayStyle>(
value: SystemUiOverlayStyle.light, // or .dark
child: MyApp(), // your widget goes here
),
);
语义从package:flutter/material.dart导入。 SystemUiOverlayStyle从package:flutter/services.dart导入。
适用于iOS和Android
import 'package:flutter/services.dart';
@override
Widget build(BuildContext context) {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark);
return Scaffold();
}
我通过改变整个背景颜色来解决这个问题,如下所示:
在主界面:
return Scaffold(
backgroundColor: Colors.black,
body: SafeArea(
),
);
大多数答案都是使用只适用于安卓系统的SystemChrome。我的解决方案是将AnnotatedRegion和SafeArea合并到新的小部件中,这样它也可以在iOS中工作。我可以在没有AppBar的情况下使用它。
class ColoredStatusBar extends StatelessWidget {
const ColoredStatusBar({
Key key,
this.color,
this.child,
this.brightness = Brightness.dark,
}) : super(key: key);
final Color color;
final Widget child;
final Brightness brightness;
@override
Widget build(BuildContext context) {
final defaultColor = Colors.blue;
final androidIconBrightness =
brightness == Brightness.dark ? Brightness.light : Brightness.dark;
return AnnotatedRegion<SystemUiOverlayStyle>(
value: SystemUiOverlayStyle(
statusBarColor: color ?? defaultColor,
statusBarIconBrightness: androidIconBrightness,
statusBarBrightness: brightness,
),
child: Container(
color: color ?? defaultColor,
child: SafeArea(
bottom: false,
child: Container(
child: child,
),
),
),
);
}
}
用法:把它放在页面小部件的顶部。
@override
Widget build(BuildContext context) {
return ColoredStatusBar(
child: /* your child here */,
);
}
首先你要导入这一行:
import 'package:flutter/services.dart';
然后你可以在main中使用下面这一行代码。飞镖文件
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
));
注意:如果你沿着这个陡坡走。因此你可以控制整个屏幕。但是如果你控制单个屏幕状态栏的颜色,那么你可以试试这个…
import 'package:flutter/services.dart';
Widget build(BuildContext context) {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.transparent,
systemNavigationBarColor: Colors.transparent,
));
}
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,
),
),
);
}
对我有用的方法(适用于那些不用AppBar的人)
添加AppbBar首选颜色,然后设置:toolbarHeight: 0
child: Scaffold(
appBar: AppBar(
toolbarHeight: 0,
backgroundColor: Colors.blue,
brightness: Brightness.light,
)
[Android测试] 这就是为什么我能够使状态栏透明,文本颜色深,
import 'package:flutter/services.dart';
void main() {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.transparent, // transparent status bar
statusBarIconBrightness: Brightness.dark // dark text for status bar
));
runApp(MyApp());
}
使用这种方法使你的状态栏完全白色的状态栏图标, 我个人使用它!在android上测试工作很好!
import 'package:FileSharing/bodypage.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
appBarTheme: AppBarTheme(
color: Colors.white,
elevation: 0,
brightness: Brightness.light,
centerTitle: true,
iconTheme: IconThemeData(
color: Colors.black,
),
textTheme: TextTheme(),
)
// This makes the visual density adapt to the platform that you run
// the app on. For desktop platforms, the controls will be smaller and
// closer together (more dense) than on mobile platforms.
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.white,
));
return Scaffold(
appBar: AppBar(
brightness: Brightness.light,
actions: [
Container(
width: 63,
padding: EdgeInsets.only(right: 30),
child: FloatingActionButton(
onPressed: null,
backgroundColor: Colors.pink,
elevation: 8,
child: Icon(Icons.person_pin),
),
)
],
),
);
}
}
你可以改变它没有appbar给脚手架(backgroundColor: color);如果你把身体包裹起来,问题可能就解决了。我的意思是这个解决方案不是实践,但如果你不使用appbar,你可以用这种方式实现。
你可以在Android上使用:
import 'package:flutter/services.dart';
void main() {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
systemNavigationBarColor: Colors.blue, // navigation bar color
statusBarColor: Colors.pink, // status bar color
));
}
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..
使用AnnotatedRegion是最适合我的,特别是如果我没有AppBar
import 'package:flutter/services.dart';
...
Widget build(BuildContext context) {
return Scaffold(
body: AnnotatedRegion<SystemUiOverlayStyle>(
value: SystemUiOverlayStyle.light,
child: ...,
),
);
}
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,
),
),
),
);
}
}
从Flutter 2.5.0
AppBar中的亮度属性已弃用
我们需要使用systemOverlayStyle属性
例如,如果您正在使用AppBar
AppBar(
title: Text("Title"),
systemOverlayStyle: SystemUiOverlayStyle.dark) //for dark color
你可以这样做,
SystemChrome.setSystemUIOverlayStyle(
SystemUiOverlayStyle(
statusBarColor: Colors.grey.withOpacity(0.5),
statusBarIconBrightness: Brightness.dark,
statusBarBrightness:
Platform.isAndroid ? Brightness.dark : Brightness.light,
systemNavigationBarColor: Colors.white,
systemNavigationBarDividerColor: Colors.grey,
systemNavigationBarIconBrightness: Brightness.dark,
),
);
将此代码添加到主程序中。省道构建方法,
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。
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,
),
最好的办法就是不用包装
Scaffold(
extendBodyBehindAppBar: true,
appBar: AppBar(
toolbarHeight: 0,
backgroundColor: Colors.transparent,
elevation: 0,
systemOverlayStyle: const SystemUiOverlayStyle(
statusBarColor: Colors.transparent, // <-- SEE HERE
statusBarIconBrightness:
Brightness.dark, //<-- For Android SEE HERE (dark icons)
statusBarBrightness: Brightness.light,
),
),.......
最新的解决方案。Flutter 2.0及以上
对于使用AppBar的用户:
/// WORKS on the screen where appBar is used
Scaffold(
appBar: AppBar(
systemOverlayStyle: SystemUiOverlayStyle(
// statusBarColor: Colors.red, // You can use this as well
statusBarIconBrightness: Brightness.dark, // OR Vice Versa for ThemeMode.dark
statusBarBrightness: Brightness.light, // OR Vice Versa for ThemeMode.dark
),
),
),
对于那些不使用AppBar的人:
将下面的代码放在根屏幕的构建功能上,以影响下面的所有屏幕:
void main() {
runApp(MyApp());
}
// This widget is the root of your application.
class MyApp extends StatelessWidget {
/// WORKS on every screen EXCEPT the screen in which appBar is used
SystemChrome.setSystemUIOverlayStyle(
SystemUiOverlayStyle(
// statusBarColor: Colors.red, // You can use this as well
statusBarIconBrightness: Brightness.dark, // OR Vice Versa for ThemeMode.dark
statusBarBrightness: Brightness.light, // OR Vice Versa for ThemeMode.dark
),
);
@override
Widget build(BuildContext context) {}
}
将下面的代码放在单个屏幕的构建功能上,只影响该屏幕:
class SingleScreen extends StatelessWidget {
/// WORKS on a single screen where appBar is NOT used
SystemChrome.setSystemUIOverlayStyle(
SystemUiOverlayStyle(
// statusBarColor: Colors.red, // You can use this as well
statusBarIconBrightness: Brightness.dark, // OR Vice Versa for ThemeMode.dark
statusBarBrightness: Brightness.light, // OR Vice Versa for ThemeMode.dark
),
);
@override
Widget build(BuildContext context) {}
}
对于那些有iOS和Android颜色不一致的问题的人来说,这个方法对我来说很管用:
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
return AppBar(
systemOverlayStyle: (Platform.isIOS)
? SystemUiOverlayStyle.light
: const SystemUiOverlayStyle(
statusBarColor: pbsBlue,
statusBarIconBrightness: Brightness.light,
statusBarBrightness: Brightness.light,
),
backgroundColor: Colors.blue,
title: Text('Home'),
);
请注意,这是AppBar可重用小部件的摘录。