How to Have Unique Controllers in ListView.Builder(Loop of Widgets)

[BensonKarue]

Using the controller on the ListView.builder makes all the popups to be shown at the same time when one item in the list is clicked. How do I make sure I have that each and every item in the list view has a unique controller? Many thanks

[SunLees]

Widget _buildItemLayout(int index){ CustomPopupMenuController popupMenuController = CustomPopupMenuController();//弹出菜单控制器 //其他代码.... }
然后把controller给PopUpMenu就可以了。希望可以帮助到你。

[Junesui]

Widget _buildItemLayout(int index){ CustomPopupMenuController popupMenuController = CustomPopupMenuController();//弹出菜单控制器 //其他代码.... } 然后把controller给PopUpMenu就可以了。希望可以帮助到你。

很多item的话，会创建很多controller，确定内存没问题吗