Add vertical line as a divider in tabbar as a divider

Question

I have a tab bar and i need to put a vertical line as a divider between tabs, how to do that? this how i used my tabbar:

new TabBar(
                    unselectedLabelColor: Color.fromRGBO(119, 119, 119, 1),
                    labelColor: Colors.black,
                    controller: controller,
                    tabs: <Tab>[
                      new Tab(text: "Girls"),
                      new Tab(text: "Hero"),
                      new Tab(text: "Open"),
                    ]),

and I need it to be like this:

Answer 1

Finally It worked for me

TabBar(
    tabs: [
        _individualTab('assets/icons/bottom_nav/Home.png'),
        _individualTab('assets/icons/bottom_nav/Guys.png'),
        _individualTab('assets/icons/bottom_nav/Notes.png'),
        Tab(
            icon: ImageIcon(
                AssetImage('assets/icons/bottom_nav/Email.png')
            ),
        ),
    ],
    labelColor: STColors.PRIMARY_COLOR,
    unselectedLabelColor: Colors.grey,
    indicatorColor: Colors.white,
    indicatorSize: TabBarIndicatorSize.tab,
    labelPadding: EdgeInsets.all(0),
    indicatorPadding: EdgeInsets.all(0),
),

Individual Tab Function

Widget _individualTab(String imagePath) {
    return Container(
        height: 50 + MediaQuery
          .of(context)
          .padding
          .bottom,
        padding: EdgeInsets.all(0),
        width: double.infinity,
        decoration:  BoxDecoration(border: Border(right: BorderSide(color: STColors.LIGHT_BORDER, width: 1, style: BorderStyle.solid))),
        child: Tab(
            icon: ImageIcon(AssetImage(imagePath)),
        ),
    );
}

Answer 2

To achieve small size separator you can use this.

Widget _individualTab(String imagePath) {
return Container(
  height: 50,
  width: double.infinity,
  decoration:  BoxDecoration(
    border: Border(right: BorderSide(color: STColors.LIGHT_BORDER,
        width: 0,
        style: BorderStyle.solid),
    ),
  ),
  child: Stack(children: <Widget>[
    Center(
        child: Tab(
          icon: ImageIcon(AssetImage(imagePath)),
        ),
    ),
    Align(
      alignment: Alignment.centerRight,
      child: Container(
        color: STColors.appBlackMedium,
        width: 1,
        height: 25,
      ),
    )
  ],)
);

}