I have a build on Firebase Firestore like this:
In the structure here, there are 2 ArrayLists. I want to display what will be done from 2 ArrayLists as ListTile
.
I tried a code like this:
Expanded(
child: StreamBuilder <QuerySnapshot>(
stream: FirebaseFirestore.instance.collection("users").doc(FirebaseAuth.instance.currentUser.uid).collection("yapilacaklar").snapshots(),
builder: (context, snapshot) {
if (!snapshot.hasData) return LinearProgressIndicator();
return Expanded(
child: _buildList(snapshot.data),
);
},
)
),
Widget _buildList(QuerySnapshot snapshot) {
return ListView.builder(
itemCount: snapshot.docs.length,
itemBuilder: (context, index) {
final doc = snapshot.docs[index];
return ListTile(
title: Text(doc["yapilacaklar"].toString()),
);
},
);
}
These codes I tried do not give an error, but they do not show in any Widget. How can I do what I want? Thanks in advance for the help.
I believe the issue is the '.collection("yapilacaklar")'. It will try to find a collection with the id "yapilacaklar" and your user doc doesn't have any collections. Yapilacaklar, in this case, is a field in the document. Try getting the snapshots of the actual document and then creating a ListView from the array in the yapilacaklar field.
The flutterfire documentation is very helpful for reading firestore data: https://firebase.flutter.dev/docs/firestore/usage/#read-data
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