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dart - 如何在单击 BottomAppBar 图标时导航到新屏幕？

问题描述

我想在 BottomAppBar 的单击图标上导航到新屏幕，但出现错误：在初始化程序中只能访问静态成员

final makeBottom = Container(
height: 45.0,
child: BottomAppBar(
  color: Colors.white,
  child: Row(
    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
    children: <Widget>[
      IconButton(
        icon: Icon(Icons.home, color: Color.fromARGB(255, 30, 110, 160)),
        onPressed: navigateToPage,//only static members can be accessed in initializers
      ),
      IconButton(
        icon: Icon(Icons.search, color: Color.fromARGB(255, 30, 110, 160)),
        onPressed: () {},
      ),
      IconButton(
        icon: Icon(Icons.star, color: Color.fromARGB(255, 30, 110, 160)),
        onPressed: () {},
      ),
      IconButton(
        icon: Icon(Icons.favorite_border,
            color: Color.fromARGB(255, 30, 110, 160)),
        onPressed: () {},
      ),
      IconButton(
        icon: Icon(Icons.account_circle,
            color: Color.fromARGB(255, 30, 110, 160)),
        onPressed: () {},
      ),
    ],
  ),
),

);

方法 navigateToPage

 void navigateToPage() async {
Navigator.push(
    context,
    MaterialPageRoute(
        builder: (context) => Userqst(
              user: widget.user,
            ),
        fullscreenDialog: true));

}

标签： dartflutterbottomappbar

解决方案

试试下面的代码..

return Scaffold{
bottomNavigationBar : bottomNav()  // call the Widget
}

Widget bottomNav(){
return new Container (
height :45.0,
//Copy the bottomAppBar code
);
}

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