flutter: custom color for App Bar with ThemeData

January 12, 2022

How can I make a custom color for App Bar with ThemeData?
accentColor is deprecated while colorScheme: ColorScheme.fromSwatch(primarySwatch: Colors.indigo)) expects type MaterialColor.

I know that I can make it this way

Scaffold(
      appBar: AppBar(
        backgroundColor: Color(0xFF0A0E21),
        title: Text('CAPTION'),
      ),

But I want to specify it in ThemeData

>Solution :

Rather than overriding everything, it often makes sense to extend the parent theme. You can handle this by using the copyWith() method.

More about extending-the-parent-theme.

return MaterialApp(
  home: const T1(),
  theme: Theme.of(context).copyWith(
    appBarTheme: Theme.of(context).appBarTheme.copyWith(
          backgroundColor: const Color(0xFF0A0E21),
        ),
  ),