我有一个从教育收集数据流和显示由卡片组成的列表视图的流构建器。我已经添加了手势检测器与编辑图标在尾随的列表视图。
这是我的streambuilder：

StreamBuilder<
    List<MyEducation>>(
stream: readEducation(),
builder:
    ((context, snapshot) {
  if (snapshot.hasError) {
    return Text(
        'Something went wrong ${snapshot.error}');
  } else if (snapshot
      .hasData) {
    final educations =
        snapshot.data!;

    return ListView(
      scrollDirection:
          Axis.vertical,
      shrinkWrap: true,
      children: educations
          .map(
              buildEducation)
          .toList(),
    );
  } else {
    return Center(
      child:
          CircularProgressIndicator(),
    );
  }
},),
)//streambuilder

这是列表和ListTile的流

Stream<List<MyEducation>> readEducation() => FirebaseFirestore.instance
      .collection('education')
      .snapshots()
      .map((snapshot) => snapshot.docs
          .map((doc) => MyEducation.fromJson(doc.data()))
          .toList());

  Widget buildEducation(MyEducation educationss) => ListTile(
        enabled: isEnabled,
        leading: CircleAvatar(
          child: Image.network(educationss.universityImage),
        ),
        title: Text(educationss.universityName),
        // The icon button which will notify list item to change
        trailing: GestureDetector(
          child: new Icon(
            Icons.edit,
            color: Colors.black,
          ),
          onTap: () {
            openDialog(); //the opendialog for form
            setState(() {
              isEnabled = !isEnabled;
            });
          }, //this is the button edit
        ),
      );

打开opendialog后，我显示窗体，任何用户都可以再次插入数据，然后运行此命令。
这就是CreateEducation方法：

Future createEducationCollege() async {
    showDialog(
      context: context,
      barrierDismissible: false,
      builder: (context) => const Center(
        child: CircularProgressIndicator(),
      ),
    );

    try {
      String date1 = selectedMonthStart! + " " + selectedYearStart.toString();
      print(date1);
      // DateFormat datestart = DateFormat.yMMMM(date1);
      // print(datestart);
      String date2 = selectedMonthEnd! + " " + selectedYearEnd.toString();
      print(date2);
      // DateFormat dateend = DateFormat.yMMMM(date2);
      // print(dateend);
      print(FirebaseAuth.instance.currentUser?.uid);
      final docEducation =
          FirebaseFirestore.instance.collection("education").doc();
      final uid = FirebaseAuth.instance.currentUser!.uid;
      final userEducation = MyEducation(
        uid: uid,
        universityName: collegeAheadController.text,
        universityImage: imageuniversitycollege,
        major: SelectedMajor.toString(),
        degree: SelectedDegree.toString(),
        dateEnd: date1,
        dateStart: date2,
      );
      final json = userEducation.toJson();

      await docEducation.set(json);
    } on FirebaseException catch (e) {
      Utils.showSnackBar(e.message);
    }

    //Navigator.of(context) not workking!!
    navigatorKey.currentState!.popUntil((route) => route.isFirst); 
}

如何将此更改为更新firestore数据库的选定项？

实际上，我没有编辑选定数据的经验。我搜索过编辑选定数据，但通常是关于用户集合的。我如何让系统知道要更改哪个列表？我想在.where（）中使用equal to进行比较，并将.set更改为. update。