下面是错误：
Exception caught by widgets library ═══════════════════════════════════
The following RangeError was thrown building StreamBuilder\<QuerySnapshot\<Object?\>\>(dirty, state: \_StreamBuilderBaseState\<QuerySnapshot\<Object?\>, AsyncSnapshot\<QuerySnapshot\<Object?\>\>\>#5a321):
RangeError (index): Invalid value: Valid value range is empty: 0下面是我的代码：
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:emart_app/Controller/auth_controller.dart';
import 'package:emart_app/Controller/profile_controller.dart';
import 'package:emart_app/Services/firestore_services.dart';
import 'package:emart_app/consts/consts.dart';
import 'package:emart_app/consts/list.dart';
import 'package:emart_app/views/Auth%20Screen/login_screen.dart';
import 'package:emart_app/views/Profile%20Screen/Components(Profile)/details_card.dart';
import 'package:emart_app/views/Profile%20Screen/Components(Profile)/edit_profile_screen.dart';
import 'package:emart_app/widgets_common/bg_widget.dart';
import 'package:get/get.dart';
class ProfileScreen extends StatelessWidget {
const ProfileScreen({super.key});
@override
Widget build(BuildContext context) {
var controller = Get.put(ProfileController());
return bgWidget(
child: Scaffold(
body: StreamBuilder(
stream: FirestoreServies.getUser(currentUser!.uid),
builder: (BuildContext context,
AsyncSnapshot<QuerySnapshot> snapshot) {
if (!snapshot.hasData) {
return const Center(
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation(redColor),
),
);
} else {
var data = snapshot.data!.docs[0];
return SafeArea(
child: Column(
children: [
//edit profile section
Padding(
padding: const EdgeInsets.all(8.0),
child: const Align(
alignment: Alignment.topRight,
child: Icon(
Icons.edit,
color: whiteColor,
)).onTap(() {
controller.nameController.text = data['name'];
controller.passController.text = data['password'];
Get.to(() => EditProfileScreen(data: data));
}),
),
//user details section
Padding(
padding: const EdgeInsets.symmetric(horizontal: 8),
child: Row(
children: [
data['imageUrl'] == ''
? Image.asset(
imgProfile3,
width: 60,
fit: BoxFit.cover,
)
.box
.roundedFull
.clip(Clip.antiAlias)
.make()
: Image.network(
data['imageUrl'],
width: 60,
fit: BoxFit.cover,
)
.box
.roundedFull
.clip(Clip.antiAlias)
.make(),
20.widthBox,
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
"${data['name']}"
.text
.fontFamily(semibold)
.white
.make(),
"${data['email']}".text.white.make()
],
)),
OutlinedButton(
style: OutlinedButton.styleFrom(
side:
const BorderSide(color: whiteColor)),
onPressed: () async {
await Get.put(AuthController())
.signOutMethod(context);
Get.offAll(() => const LoginScreen());
},
child: logout.text
.fontFamily(semibold)
.white
.make())
],
),
),
10.heightBox,
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
detailsCard(
count: data['cart_count'],
title: "In Your Cart",
width: context.screenWidth / 3.4),
detailsCard(
count: data['wishlist_count'],
title: "In Your Wishlist",
width: context.screenWidth / 3.4),
detailsCard(
count: data['order_count'],
title: "Your Orders",
width: context.screenWidth / 3.4)
],
),
5.heightBox,
ListView.separated(
shrinkWrap: true,
itemBuilder: (context, index) {
return ListTile(
leading: Image.asset(
profileButtonIcons[index],
width: 22,
),
title: profileButtonsList[index]
.text
.fontFamily(semibold)
.color(darkFontGrey)
.make(),
);
},
separatorBuilder: (context, index) {
return const Divider(
color: lightGrey,
);
},
itemCount: profileButtonsList.length)
.box
.rounded
.white
.margin(const EdgeInsets.all(12))
.padding(const EdgeInsets.symmetric(horizontal: 16))
.shadowSm
.make()
.box
.color(redColor)
.make()
],
));
}
})));
}
}
1条答案
按热度按时间5gfr0r5j1#
snapshot.data!.docs似乎为空。您可以使用for循环简单地循环它。并在索引中指定。snapshot.hasData仅检查值是否为非空，它不检查值是否为空。