view method

@override Widget view(BuildContext context)

Display your widget.

Implementation

@override
Widget view(BuildContext context) {
  Map<int, NavigationTab> pages = orderedPages;
  if (layout?.kind == "bottomNav") {
    return Scaffold(
      body: maintainState
          ? IndexedStack(index: currentIndex, children: [
              for (var page in pages.entries)
                Navigator(
                  key: getNavigationKey(page),
                  onGenerateRoute: (settings) => MaterialPageRoute(
                    builder: (context) => page.value.page,
                    settings: settings,
                  ),
                )
            ])
          : Navigator(
              key: getNavigationKey(pages.entries.elementAt(currentIndex)),
              onGenerateRoute: (settings) => MaterialPageRoute(
                builder: (context) =>
                    (pages.entries.elementAt(currentIndex).value.page),
                settings: settings,
              ),
            ),
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: currentIndex,
        onTap: onTap,
        selectedLabelStyle: layout?.selectedLabelStyle ??
            TextStyle(
              color: Colors.black,
              fontWeight: FontWeight.w600,
            ),
        unselectedLabelStyle: layout?.unselectedLabelStyle ??
            TextStyle(
              color: Colors.black,
              fontWeight: FontWeight.w400,
            ),
        showSelectedLabels: layout?.showSelectedLabels ?? true,
        showUnselectedLabels: layout?.showUnselectedLabels ?? true,
        selectedItemColor: layout?.selectedItemColor ?? Colors.black,
        unselectedItemColor: layout?.unselectedItemColor ?? Colors.black,
        selectedFontSize: layout?.selectedFontSize ?? 14.0,
        unselectedFontSize: layout?.unselectedFontSize ?? 12.0,
        iconSize: layout?.iconSize ?? 24.0,
        elevation: layout?.elevation ?? 8.0,
        backgroundColor: layout?.backgroundColor,
        type: layout?.type ?? BottomNavigationBarType.fixed,
        items: [
          for (MapEntry<int, NavigationTab> page in pages.entries)
            _getBottomNavigationBarItem(page),
        ],
      ),
    );
  }
  if (layout?.kind == "topNav") {
    return DefaultTabController(
      length: pages.length,
      initialIndex: currentIndex,
      animationDuration: layout?.animationDuration,
      child: Scaffold(
        appBar: AppBar(
          backgroundColor: layout?.backgroundColor,
          title: pages[currentIndex]?.title == null
              ? null
              : Text(pages[currentIndex]?.title ?? ""),
          toolbarHeight: (layout?.hideAppBarTitle ?? true) ? 0 : null,
          bottom: TabBar(
            isScrollable: layout?.isScrollable ?? false,
            labelColor: layout?.labelColor,
            labelStyle: layout?.labelStyle,
            labelPadding: layout?.labelPadding,
            unselectedLabelColor: layout?.unselectedLabelColor,
            unselectedLabelStyle: layout?.unselectedLabelStyle,
            indicatorColor: layout?.indicatorColor,
            automaticIndicatorColorAdjustment:
                layout?.automaticIndicatorColorAdjustment ?? true,
            indicatorWeight: layout?.indicatorWeight ?? 2.0,
            indicatorPadding: layout?.indicatorPadding ?? EdgeInsets.zero,
            indicator: layout?.indicator,
            indicatorSize: layout?.indicatorSize,
            dividerColor: layout?.dividerColor,
            dividerHeight: layout?.dividerHeight,
            dragStartBehavior:
                layout?.dragStartBehavior ?? DragStartBehavior.start,
            overlayColor: layout?.overlayColorState,
            mouseCursor: layout?.mouseCursor,
            enableFeedback: layout?.enableFeedback,
            physics: layout?.physics,
            splashFactory: layout?.splashFactory,
            splashBorderRadius: layout?.splashBorderRadius,
            tabAlignment: layout?.tabAlignment,
            textScaler: layout?.textScaler,
            tabs: [
              for (MapEntry page in pages.entries)
                Tab(
                  text: layout?.showSelectedLabels == false
                      ? null
                      : page.value.title,
                  icon: page.value.kind == "badge"
                      ? BadgeTab.fromNavigationTab(page.value,
                          index: page.key,
                          icon: currentIndex == page.key
                              ? page.value.activeIcon ?? Icon(Icons.home)
                              : page.value.icon ?? Icon(Icons.home),
                          stateName:
                              "${stateName}_navigation_tab_${page.key}")
                      : currentIndex == page.key
                          ? page.value.activeIcon ?? Icon(Icons.home)
                          : page.value.icon ?? Icon(Icons.home),
                )
            ],
            onTap: onTap,
          ),
        ),
        body: maintainState
            ? IndexedStack(index: currentIndex, children: [
                for (var page in pages.entries)
                  Navigator(
                    key: getNavigationKey(page),
                    onGenerateRoute: (settings) => MaterialPageRoute(
                      builder: (context) => (page.value.page),
                      settings: settings,
                    ),
                  )
              ])
            : TabBarView(
                physics: layout?.physics,
                children: [
                  for (var page in pages.entries)
                    Navigator(
                      key: getNavigationKey(page),
                      onGenerateRoute: (settings) => MaterialPageRoute(
                        builder: (context) => (page.value.page),
                        settings: settings,
                      ),
                    )
                ],
              ),
      ),
    );
  }
  throw Exception("Invalid layout type");
}