BottomNavigationBar not able to apply background image - Flutter

Question

BottomNavigationBar is not applying background image when there is more than 3 BottomNavigationBarItem. It shows white background instead of applied image. Please review the code and let me know if I'm missing something in the code.

 bottomNavigationBar: Container(
            decoration: BoxDecoration(
              image: DecorationImage(image: AssetImage('assets/images/tabbar_background.png'), fit: BoxFit.fill),
            ),
            child: BottomNavigationBar(
              backgroundColor: Colors.transparent,
              elevation: 0,
              items: [
                BottomNavigationBarItem(icon: Image.asset("assets/images/eplay.png"), title: Text('title')),
                BottomNavigationBarItem(icon: Image.asset("assets/images/games.png"), title: Text('title')),
                  BottomNavigationBarItem(icon: Image.asset("assets/images/retail-location.png"), title: Text('title')),
                 BottomNavigationBarItem(icon: Image.asset("assets/images/scan.png"), title: Text('title')),
                /*  BottomNavigationBarItem(icon: Image.asset("assets/images/scan.png"), title: Text('title')),
*/
              ],
            ),

Answer 1

Add type: BottomNavigationBarType.fixed as a property of the BottomNavigationBar.

---

I added a demo using your code as an example:

  bottomNavigationBar: Container(
            decoration: BoxDecoration(
              image: DecorationImage(image: AssetImage('assets/images/tabbar_background.png'), fit: BoxFit.fill),
            ),
            child: BottomNavigationBar(
              backgroundColor: Colors.transparent,
              type: BottomNavigationBarType.fixed, // new line
              elevation: 0,
              items: [
                BottomNavigationBarItem(icon: Image.asset("assets/images/eplay.png"), title: Text('title')),
                BottomNavigationBarItem(icon: Image.asset("assets/images/games.png"), title: Text('title')),
                  BottomNavigationBarItem(icon: Image.asset("assets/images/retail-location.png"), title: Text('title')),
                 BottomNavigationBarItem(icon: Image.asset("assets/images/scan.png"), title: Text('title')),
                /*  BottomNavigationBarItem(icon: Image.asset("assets/images/scan.png"), title: Text('title')),
*/
              ],
            ),