如何在 flutter 中创建带有动态数据的 PopUpMenu?
我想用动态数据显示 PopupMenu,这些数据是我从 API 响应中获得的。我尝试在 PopupMenu 子项中使用 listview.builder 但它不起作用。
我的 showmenu() 代码
void showMemberMenu() async {
await showMenu(
context: context,
position: RelativeRect.fromLTRB(200, 150, 100, 100),
items: [
PopupMenuItem(
value: 1,
child: Text(
"ROHIT",
style: TextStyle(
fontSize: 15.sp,
fontWeight: FontWeight.bold,
fontFamily: 'Roboto',
color: green3),
),
),
PopupMenuItem(
value: 2,
child: Text(
"REKHA",
style: TextStyle(
fontSize: 15.sp,
fontWeight: FontWeight.bold,
fontFamily: 'Roboto',
color: green3),
),
),
PopupMenuItem(
value: 3,
child: Text(
"DHRUV",
style: TextStyle(
fontSize: 15.sp,
fontWeight: FontWeight.bold,
fontFamily: 'Roboto',
color: green3),
),
),
],
elevation: 8.0,
).then((value) {
if (value != null) print(value);
});
}
请帮助摆脱这个问题。
I want to show PopupMenu with dynamic data which will I got from API response. I tried with listview.builder inside PopupMenu child but it not works.
My code of showmenu()
void showMemberMenu() async {
await showMenu(
context: context,
position: RelativeRect.fromLTRB(200, 150, 100, 100),
items: [
PopupMenuItem(
value: 1,
child: Text(
"ROHIT",
style: TextStyle(
fontSize: 15.sp,
fontWeight: FontWeight.bold,
fontFamily: 'Roboto',
color: green3),
),
),
PopupMenuItem(
value: 2,
child: Text(
"REKHA",
style: TextStyle(
fontSize: 15.sp,
fontWeight: FontWeight.bold,
fontFamily: 'Roboto',
color: green3),
),
),
PopupMenuItem(
value: 3,
child: Text(
"DHRUV",
style: TextStyle(
fontSize: 15.sp,
fontWeight: FontWeight.bold,
fontFamily: 'Roboto',
color: green3),
),
),
],
elevation: 8.0,
).then((value) {
if (value != null) print(value);
});
}
Please help to get out from this.
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您可以使用
List.generate
方法使用从 API 响应中获取的现有列表来生成列表的动态长度。下面是如何实现它的示例。
You can use
List.generate
method to generate the dynamic length of the list using the existing list you get from the API response.Below is an example of how you can achieve it.
试试这个:
Try this:
你可以尝试这样做:
https://dartpad.dev/?id=a3f9002a37cbacc2cfae46174cbd2eba
您可以添加任何状态管理来替换 FutureBuilder,但是这是合乎逻辑的方法。
我希望它有帮助。
you can try to do something like this:
https://dartpad.dev/?id=a3f9002a37cbacc2cfae46174cbd2eba
you can add any state management to replace the FutureBuilder but this is the logical approach.
I hope it is helpful.