MaterialButton onPressed listener not work (Flutter)

Question

我创建了这样的布局，问题是onPressed监听器不工作，但我不明白为什么：

Material(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(22.0)),
color: const Color.fromRGBO(33, 63, 132, 1),
clipBehavior: Clip.antiAlias,
child: MaterialButton(
height: 140.0,
minWidth: 380.0,
elevation: 20.0,
color: const Color.fromRGBO(33, 63, 132, 1),
textColor: Colors.white,
child: Text("Chiudi sessione / Cambia utente",
style: TextStyle(
fontSize: ScreenUtil().setSp(20),
)),
onPressed: () {
var future = endUserSession(badgeCode, false, context);
future.then((value) {
setUserBadgeForDualMode("");
setDoorStatusIntoPrefs("");
Navigator.pushReplacement(context, MaterialPageRoute(builder: (context) => const OpenDoorDualMode()));
});
}
),
)

我做错了什么？

Answer 1

问题似乎出在函数调用上，您没有等待未来的值，这样使用

var future = await endUserSession(badgeCode, false, context);

或者试着删除它并像这样调用你的函数

await endUserSession(badgeCode, false, context).then((value) async {
await setUserBadgeForDualMode("");
await setDoorStatusIntoPrefs("");
Navigator.pushReplacement(context, MaterialPageRoute(builder: (context) => const OpenDoorDualMode()));
});

使用"；等待"；无论你在哪里期待未来的价值。