Flutter - How to change the status bar text color on iOS

In Flutter, changing the status bar text color on iOS can be done using the SystemChrome class from the flutter/services.dart package. This involves setting the status bar's brightness, which controls the color of the text and icons in the status bar.

Here's how you can change the status bar text color:

1. Import the necessary packages:

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

2. Set the status bar text color:

To change the status bar text color, you need to set the SystemUiOverlayStyle. You can do this in the build method of your main widget or in any widget where you want to apply this style.

For example, if you want white text and icons in the status bar, you should set the status bar's brightness to Brightness.dark. Conversely, for black text and icons, set the brightness to Brightness.light.

Here's an example:

void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { // Set the initial status bar text color SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarBrightness: Brightness.dark, // For iOS: sets the text to white statusBarIconBrightness: Brightness.dark, // For Android: sets the text to white )); return MaterialApp( title: 'Flutter Status Bar Example', theme: ThemeData( primarySwatch: Colors.blue, ), home: HomeScreen(), ); } } class HomeScreen extends StatelessWidget { @override Widget build(BuildContext context) { // Optionally set the status bar text color when this screen is displayed SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarBrightness: Brightness.dark, // For iOS: sets the text to white statusBarIconBrightness: Brightness.dark, // For Android: sets the text to white )); return Scaffold( appBar: AppBar( title: Text('Home Screen'), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ Text('Hello, World!'), ElevatedButton( onPressed: () { // Change the status bar text color on button press SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarBrightness: Brightness.light, // For iOS: sets the text to black statusBarIconBrightness: Brightness.light, // For Android: sets the text to black )); }, child: Text('Change Status Bar Text Color'), ), ], ), ), ); } } 

Explanation:

1. Initial Setup in MyApp:

   • The SystemChrome.setSystemUIOverlayStyle method is called to set the initial status bar text color when the app is launched. In this case, it sets the status bar text color to white (Brightness.dark).

2. Dynamic Changes in HomeScreen:

   • Another call to SystemChrome.setSystemUIOverlayStyle is placed in the build method of the HomeScreen widget to ensure the status bar text color is set when this screen is displayed.
   • An ElevatedButton is provided to demonstrate how to change the status bar text color dynamically. When the button is pressed, it changes the status bar text color to black (Brightness.light).

This approach ensures that the status bar text color is controlled globally or locally within specific widgets, providing flexibility in managing the UI appearance across different parts of your Flutter app.

Examples

1. How to change the status bar text color in Flutter on iOS?

   • Description: This query addresses changing the status bar text color on iOS in a Flutter app.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Status Bar Color Example'), ), body: Center(child: Text('Hello World')), ), // Set status bar style builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.transparent, // Set background color statusBarIconBrightness: Brightness.dark, // Set text color )); return child!; }, ); } } 

2. How to set a dark status bar text color for Flutter on iOS?

   • Description: This query focuses on configuring the status bar text color to be dark.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Dark Status Bar Text Color'), ), body: Center(child: Text('Hello World')), ), builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.transparent, statusBarIconBrightness: Brightness.dark, // Dark text )); return child!; }, ); } } 

3. How to change the status bar text color to white in Flutter on iOS?

   • Description: This query is about changing the status bar text color to white.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('White Status Bar Text Color'), ), body: Center(child: Text('Hello World')), ), builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.transparent, statusBarIconBrightness: Brightness.light, // White text )); return child!; }, ); } } 

4. How to customize status bar color and text style in Flutter for iOS devices?

   • Description: This query covers customizing both the color and text style of the status bar.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Custom Status Bar Style'), ), body: Center(child: Text('Hello World')), ), builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.blue, // Custom background color statusBarIconBrightness: Brightness.light, // Custom text color )); return child!; }, ); } } 

5. How to apply status bar theme changes in a Flutter app for iOS?

   • Description: This query is about applying theme changes to the status bar in a Flutter app.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( theme: ThemeData( primarySwatch: Colors.green, appBarTheme: AppBarTheme( systemOverlayStyle: SystemUiOverlayStyle( statusBarColor: Colors.green, // Background color statusBarIconBrightness: Brightness.light, // Text color ), ), ), home: Scaffold( appBar: AppBar( title: Text('Status Bar Theme Changes'), ), body: Center(child: Text('Hello World')), ), ); } } 

6. How to set different status bar styles for different screens in Flutter on iOS?

   • Description: This query involves setting different styles for the status bar on different screens.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: HomeScreen(), routes: { '/second': (context) => SecondScreen(), }, ); } } class HomeScreen extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Home Screen'), ), body: Center( child: ElevatedButton( onPressed: () { Navigator.pushNamed(context, '/second'); }, child: Text('Go to Second Screen'), ), ), // Set status bar style for HomeScreen builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.blue, // Background color statusBarIconBrightness: Brightness.light, // Text color )); return child!; }, ); } } class SecondScreen extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Second Screen'), ), body: Center(child: Text('Welcome to the Second Screen')), // Set status bar style for SecondScreen builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.red, // Background color statusBarIconBrightness: Brightness.dark, // Text color )); return child!; }, ); } } 

7. How to set a translucent status bar with custom text color in Flutter on iOS?

   • Description: This query addresses creating a translucent status bar with a specific text color.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Translucent Status Bar'), ), body: Center(child: Text('Hello World')), ), builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.transparent, // Translucent background statusBarIconBrightness: Brightness.dark, // Custom text color )); return child!; }, ); } } 

8. How to set status bar text color in Flutter using Platform Channels for iOS?

   • Description: This query involves using Platform Channels to set status bar text color on iOS.

   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Platform Channels Example'), ), body: Center(child: Text('Hello World')), ), // Initialize platform channel builder: (context, child) { const platform = MethodChannel('com.example/statusbar'); platform.invokeMethod('setStatusBarTextColor', 'dark'); return child!; }, ); } } 

     iOS Native Code (Swift):

     import Flutter import UIKit @UIApplicationMain @objc class AppDelegate: FlutterAppDelegate { override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { let controller : FlutterViewController = window?.rootViewController as! FlutterViewController let methodChannel = FlutterMethodChannel(name: "com.example/statusbar", binaryMessenger: controller.binaryMessenger) methodChannel.setMethodCallHandler { (call: FlutterMethodCall, result: @escaping FlutterResult) in if call.method == "setStatusBarTextColor" { let args = call.arguments as? String if args == "dark" { UIApplication.shared.statusBarStyle = .darkContent } else { UIApplication.shared.statusBarStyle = .lightContent } result(nil) } } return super.application(application, didFinishLaunchingWithOptions: launchOptions) } } 

9. How to use SystemChrome to customize the status bar text color in Flutter on iOS?

   • Description: This query focuses on using SystemChrome for status bar customization.
   • Code:

     import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('SystemChrome Example'), ), body: Center(child: Text('Hello World')), ), builder: (context, child) { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.transparent, // Background color statusBarIconBrightness: Brightness.dark, // Text color )); return child!; }, ); } } 

10. How to make status bar text color configurable from a settings screen in Flutter on iOS?

    • Description: This query is about making the status bar text color configurable via app settings.
    • Code:

      import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatefulWidget { @override _MyAppState createState() => _MyAppState(); } class _MyAppState extends State<MyApp> { bool _isDarkText = true; void _toggleStatusBarTextColor() { setState(() { _isDarkText = !_isDarkText; }); SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( statusBarColor: Colors.transparent, statusBarIconBrightness: _isDarkText ? Brightness.dark : Brightness.light, )); } @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Settings Screen Example'), actions: [ IconButton( icon: Icon(Icons.settings), onPressed: _toggleStatusBarTextColor, ), ], ), body: Center(child: Text('Tap the settings icon to toggle text color')), ), ); } } 

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