fbmobile/lib/ui/widgets/my_appbar.dart

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

import '../shared/app_colors.dart';
import '../widgets/about_iconbutton.dart';

class MyAppBar extends AppBar {
  static final List<Widget> aboutEnabledWidgets = [AboutIconButton()];
  static final List<Widget> aboutDisabledWidgets = [];

  MyAppBar(
      {Key? key,
      required Widget title,
      List<Widget>? actionWidgets,
      bool enableAbout = true})
      : super(
            key: key,
            title: Row(children: <Widget>[title]),
            actions: _renderIconButtons(actionWidgets, enableAbout),
            systemOverlayStyle: SystemUiOverlayStyle(
              systemNavigationBarColor: primaryAccentColor, // Navigation bar
              statusBarColor: primaryAccentColor, // Status bar
            ),
            backgroundColor: primaryAccentColor);

  static List<Widget> _renderIconButtons(
      List<Widget>? actionWidgets, bool aboutEnabled) {
    if (actionWidgets == null) {
      actionWidgets = [];
    }

    List<Widget> widgets = [...actionWidgets];

    if (aboutEnabled) {
      widgets.add(AboutIconButton());
    }

    return widgets;
  }
}