Bottom System Navigation Bar Overflow

Question

On the Samsung Galaxy S23 with android version 15 and One ui 7, there is a bottom system nav bar. Does anyone have any idea how to handle the nav height? is overflowing on the app.

I have trying SafeArea, my solution is

SizedBox(
        height: controller.isVisible.value ? 80 : 0,
        child: SafeArea(
          bottom: true,
          top: false,
          child: MyBottomNavBar(
            onItemSelected: controller.onMenuSelected,
            selectedIndex: controller.lastSelectedIndex.value,
          ),
        ),
      );

I'm also using this method to get the height of system nav bar,

/// Returns the height of the bottom system navigation bar (if present).
  static double getBottomSystemBarHeight(BuildContext context) {
    final viewPadding = MediaQuery.of(context).viewPadding;
    final viewInsets = MediaQuery.of(context).viewInsets;

    // Return bottom padding only if the keyboard is not open
    return viewInsets.bottom == 0 ? viewPadding.bottom : 0;
  }

I have used this returned value as bottom padding of MyBottomNavBar class

Container(
        padding: EdgeInsets.only(
          bottom: DeviceUtils.getBottomSystemBarHeight(context),
        ),
        decoration: BoxDecoration(
          boxShadow: [
            BoxShadow(
              color: Colors.grey.withValues(alpha: 0.5),
              spreadRadius: 3,
              blurRadius: 4,
              offset: Offset(0, 3),
            ),
          ],
        ),
        child: BottomNavigationBar(
          key: bottomNavKey,
          items: _navItemBuilder(navItems),
          elevation: 10,
          showSelectedLabels: true,
          showUnselectedLabels: true,
          selectedFontSize: 10,
          unselectedFontSize: 10,
          selectedLabelStyle: TextStyle(fontFamily: 'Poppins'),
          type: BottomNavigationBarType.fixed,
          backgroundColor: AppColors.pageBackground,
          currentIndex: navController.selectedIndex,
          onTap: (index) {
            navController.updateSelectedIndex(index);
            onItemSelected(navItems[index].menuCode);
          },
        ),
      ),

On devices like the S23, the bottom navigation bar overflows or gets partially hidden behind the system nav bar.

DevQt · Accepted Answer · 2025-05-31 07:27:08Z

Your scenario is unusual because you shouldn't encounter that if you construct your widget correctly, like this:

@override
Widget build(BuildContext context) {
  return Scaffold(
    body: YourWidgetBodyHere(),
    bottomNavigationBar: BottomNavigationBar(
      key: bottomNavKey,
      items: _navItemBuilder(navItems),
      elevation: 10,
      showSelectedLabels: true,
      showUnselectedLabels: true,
      selectedFontSize: 10,
      unselectedFontSize: 10,
      selectedLabelStyle: TextStyle(fontFamily: 'Poppins'),
      type: BottomNavigationBarType.fixed,
      backgroundColor: AppColors.pageBackground,
      currentIndex: navController.selectedIndex,
      onTap: (index) {
        navController.updateSelectedIndex(index);
        onItemSelected(navItems[index].menuCode);
      },
    ),
  );
}

By placing your BottomNavigationBar widget in the bottomNavigationBar property of Scaffold, the layout should treat your widget solely as the bottomNavigationBar and prevent it from overflowing.

However, if it overlaps the bottom area of the available screen height.

It's usually because the height or size of your icons and their labels are overlapping the available height of your BottomNavigationBar widget.

Rohan Patel · Accepted Answer · 2025-07-09 07:19:54Z

1

When I encountered this issue, I resolved the overlapping problem globally by adding the following code:

MaterialApp(
  builder: (context, child) {
    return SafeArea(
      top: false, // Set to true if you want to avoid notch overlap too
      bottom: true, // Avoids overlap with navigation bar
      child: child!,
    );
  },
  home: YourHomePage(), // Or your main screen
);

answered Jul 9 at 7:19

Rohan Patel

261 bronze badge

Comments

DevQt · Accepted Answer · 2025-07-23 13:22:51Z

1

For anyone else, I also encountered this in One UI 7. But I had already placed the BottomNavigationBar within the Scaffold's BottomNavigationBar, the issue was that I had defined the height. Just deleting the height solved it.

edited Jul 23 at 13:22

DevQt

1,9542 gold badges11 silver badges32 bronze badges

answered Jun 19 at 4:51

Enrico Roselino

134 bronze badges

1 Comment

Community Jun 19 at 5:58

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.

Collectives™ on Stack Overflow

Bottom System Navigation Bar Overflow

3 Answers 3

Comments

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related