Changing the systemNavigationBarColor isn't working Flutter-CodePudding

I want to change the color of the systemNavigationBar based on the theme.

I have been trying to change the color of the system navigation color of the app using the SystemOverlayStyle but it doesn't seem to work.

 ThemeData get light => ThemeData(
        
        appBarTheme: AppBarTheme(
          iconTheme: lightBase.iconTheme,
          backgroundColor: Colors.transparent,
          elevation: 0,
          centerTitle: true,
          titleTextStyle: const TextStyle(
            fontWeight: FontWeight.bold,
            fontSize: 17,
            color: AppColors.textDark,
          ),
           systemOverlayStyle:
              SystemUiOverlayStyle(systemNavigationBarColor: Colors.pink),
        ),
        
      );

Output:

CodePudding user response：

Wrap Scaffold with AnnotatedRegion widget. Then set it's value property to SystemUIOverlayStyle

For Example

 @override
  Widget build(BuildContext context) {
    return AnnotatedRegion<SystemUiOverlayStyle>(
      value: const SystemUiOverlayStyle(
        statusBarBrightness: Brightness.light,
        statusBarIconBrightness: Brightness.dark,
        statusBarColor: Colors.transparent,
        systemNavigationBarColor: Colors.white, // Change Background color
        systemNavigationBarIconBrightness: Brightness.dark,  // Change Icon color
      ),
      child: Scaffold(

To change dynamically, for example with system theme, first get the Brightness of your system.

 var brightness = MediaQuery.of(context).platformBrightness;
 bool isDarkMode = brightness == Brightness.dark;

Now based on isDarkMode value

systemNavigationBarColor:isDarkMode ? Colors.white : Colors.black,

CodePudding user response：

use manifest.xml file( in android project)

https://developer.android.com/reference/android/view/Window#setNavigationBarColor(int)