Firebase中的Flutter复选框值存储

Question

我的设置很简单:我正在使用Flutter web制作登陆页面:用户输入他们的电子邮件添加并勾选复选框，如果说他们超过18岁。对于我的生活，我找不到一种方法来存储电子邮件添加和复选框的布尔值在Firebase的同一记录?UI和Firebase都设置好并正常工作，下面是代码片段:

`child: TextFormField(
controller: _emailController,
// The validator receives the text that the user has entered.
validator: (val) => !EmailValidator.validate(val!, true)
? 'Please enter a valid email.'
: null,
onSaved: (email2save) => this.email2save = email2save,
decoration: InputDecoration(
icon: Icon(
Icons.email_outlined,
color: Color(0xFF0000CC),
),
hintText: "Please enter your email",
border: InputBorder.none),
),
.......
Column(
children: [
Text('Please tick here'),
MyStatefulWidget(),
Text(' if over 18'),
],
),
.......
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
bool isChecked = false;
@override
Widget build(BuildContext context) {
Color getColor(Set<MaterialState> states) {
const Set<MaterialState> interactiveStates = <MaterialState>{
MaterialState.pressed,
MaterialState.hovered,
MaterialState.focused,
};
if (states.any(interactiveStates.contains)) {
return Color(0xFF0000CC);
}
return Colors.black;
}
return Checkbox(
checkColor: Colors.white,
fillColor: MaterialStateProperty.resolveWith(getColor),
value: isChecked,
onChanged: (bool? value) {
setState(() {
isChecked = value!;
});
},
);
}

Answer 1

你好，我在上面提供的代码中没有看到任何Firebase，但实际上很容易同时添加两个甚至多个东西到Cloud Firestore:

var collection = FirebaseFirestore.instance
.collection(collection_name)
.doc(document_name);
collection
.set({
'email': 'email2save',
'check': 'isChecked'
})

你可以在你的类的任何地方这样做，它会像魔法一样工作。