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CitizenForum done. Navbar working great. Introduced cache for firestore to hopefully don't reach the bandwith limit again

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Nizz05
2023-04-27 22:49:58 +02:00
parent 6590e708c1
commit 6834e34b6a
4 changed files with 245 additions and 53 deletions
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lib/UserDefinedList.dart
+196 -13
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@@ -93,10 +93,6 @@ class UserDefinedItem extends StatelessWidget {
}
}
class NewsList extends StatefulWidget {
const NewsList({Key? key}) : super(key: key);
@@ -104,6 +100,193 @@ class NewsList extends StatefulWidget {
_NewsListState createState() => _NewsListState();
}
class _NewsListState extends State<NewsList> {
final FirebaseFirestore firestore = FirebaseFirestore.instance;
late Stream<QuerySnapshot> newsStream;
@override
void initState() {
super.initState();
// Enable persistence
firestore.enablePersistence();
// Enable network
firestore.settings = Settings(cacheSizeBytes: Settings.CACHE_SIZE_UNLIMITED);
// Configure the stream to use the cache first and then the server
newsStream = firestore
.collection('News')
.orderBy('createdDate', descending: true)
.snapshots(includeMetadataChanges: true);
}
@override
Widget build(BuildContext context) {
return StreamBuilder<QuerySnapshot>(
stream: newsStream,
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
if (snapshot.hasError) {
return Text('Error: ${snapshot.error}');
}
switch (snapshot.connectionState) {
case ConnectionState.waiting:
return const Text('Loading...');
default:
final List<QueryDocumentSnapshot> documents = snapshot.data!.docs;
return ListView.builder(
itemCount: documents.length,
itemBuilder: (BuildContext context, int index) {
final Map<String, dynamic> data =
documents[index].data()! as Map<String, dynamic>;
final DateTime createdDate =
data['createdDate'].toDate();
final formattedDate =
DateFormat('dd.MM.yyyy').format(createdDate);
return UserDefinedItem(
title: data['title'] ?? '',
datum: formattedDate,
description: data['description'] ?? '',
image: Image.network((data['imageUrl'])),
);
},
);
}
},
);
}
}
class IssueList extends StatefulWidget {
const IssueList({Key? key}) : super(key: key);
@override
_IssueListState createState() => _IssueListState();
}
class _IssueListState extends State<IssueList> {
final FirebaseFirestore firestore = FirebaseFirestore.instance;
late Stream<QuerySnapshot> issueStream;
@override
void initState() {
super.initState();
// Enable persistence
firestore.enablePersistence();
// Enable network
firestore.settings = Settings(cacheSizeBytes: Settings.CACHE_SIZE_UNLIMITED);
// Configure the stream to use the cache first and then the server
issueStream = firestore
.collection('Issues')
.orderBy('createdDate', descending: true)
.snapshots(includeMetadataChanges: true);
}
@override
Widget build(BuildContext context) {
return StreamBuilder<QuerySnapshot>(
stream: issueStream,
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
if (snapshot.hasError) {
return Text('Error: ${snapshot.error}');
}
switch (snapshot.connectionState) {
case ConnectionState.waiting:
return const Text('Loading...');
default:
final List<QueryDocumentSnapshot> documents = snapshot.data!.docs;
return ListView.builder(
itemCount: documents.length,
itemBuilder: (BuildContext context, int index) {
final Map<String, dynamic> data =
documents[index].data()! as Map<String, dynamic>;
final DateTime createdDate =
data['createdDate'].toDate();
final formattedDate =
DateFormat('dd.MM.yyyy').format(createdDate);
return UserDefinedItem(
title: data['title'] ?? '',
datum: formattedDate,
description: data['description'] ?? '',
image: Image.network((data['imageUrl'])),
);
},
);
}
},
);
}
}
class CitizensForum extends StatefulWidget {
const CitizensForum({Key? key}) : super(key: key);
@override
_CitizensForumState createState() => _CitizensForumState();
}
class _CitizensForumState extends State<CitizensForum> {
final FirebaseFirestore firestore = FirebaseFirestore.instance;
late Stream<QuerySnapshot<Map<String, dynamic>>> citizenStream;
@override
void initState() {
super.initState();
// Enable persistence
firestore.enablePersistence();
// Enable network
firestore.settings = Settings(cacheSizeBytes: Settings.CACHE_SIZE_UNLIMITED);
// Configure the stream to use the cache first and then the server
citizenStream = firestore
.collection('CitizensForum')
.orderBy('createdDate', descending: true)
.snapshots(includeMetadataChanges: true);
}
@override
Widget build(BuildContext context) {
return StreamBuilder<QuerySnapshot<Map<String, dynamic>>>(
stream: citizenStream,
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot<Map<String, dynamic>>> snapshot) {
if (snapshot.hasError) {
return Text('Error: ${snapshot.error}');
}
switch (snapshot.connectionState) {
case ConnectionState.waiting:
return const Text('Loading...');
default:
final List<QueryDocumentSnapshot<Map<String, dynamic>>> documents = snapshot.data!.docs;
return ListView.builder(
itemCount: documents.length,
itemBuilder: (BuildContext context, int index) {
final Map<String, dynamic> data = documents[index].data();
final DateTime createdDate = data['createdDate'].toDate();
final formattedDate = DateFormat.yMd().format(createdDate);
return UserDefinedItem(
title: data['title'] ?? '',
datum: formattedDate,
description: data['description'] ?? '',
image: Image.network((data['imageUrl'])),
);
},
);
}
},
);
}
}
/*class NewsList extends StatefulWidget {
const NewsList({Key? key}) : super(key: key);
@override
_NewsListState createState() => _NewsListState();
}
class _NewsListState extends State<NewsList> {
final FirebaseFirestore firestore = FirebaseFirestore.instance;
late Stream<QuerySnapshot> newsStream;
@@ -201,12 +384,12 @@ class CitizensForum extends StatefulWidget {
const CitizensForum({Key? key}) : super(key: key);
@override
_CitizensForum createState() => _CitizensForum();
_CitizensForumState createState() => _CitizensForumState();
}
class _CitizensForum extends State<IssueList> {
class _CitizensForumState extends State<CitizensForum> {
final FirebaseFirestore firestore = FirebaseFirestore.instance;
late Stream<QuerySnapshot> citizenStream;
late Stream<QuerySnapshot<Map<String, dynamic>>> citizenStream;
@override
void initState() {
@@ -216,9 +399,9 @@ class _CitizensForum extends State<IssueList> {
@override
Widget build(BuildContext context) {
return StreamBuilder<QuerySnapshot>(
return StreamBuilder<QuerySnapshot<Map<String, dynamic>>>(
stream: citizenStream,
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot<Map<String, dynamic>>> snapshot) {
if (snapshot.hasError) {
return Text('Error: ${snapshot.error}');
}
@@ -226,13 +409,13 @@ class _CitizensForum extends State<IssueList> {
case ConnectionState.waiting:
return const Text('Loading...');
default:
final List<QueryDocumentSnapshot> documents = snapshot.data!.docs;
final List<QueryDocumentSnapshot<Map<String, dynamic>>> documents = snapshot.data!.docs;
return ListView.builder(
itemCount: documents.length,
itemBuilder: (BuildContext context, int index) {
final Map<String, dynamic> data = documents[index].data()! as Map<String, dynamic>;
final Map<String, dynamic> data = documents[index].data();
final DateTime createdDate = data['createdDate'].toDate();
final formattedDate = DateFormat('dd.MM.yyyy').format(createdDate);
final formattedDate = DateFormat.yMd().format(createdDate);
return UserDefinedItem(
title: data['title'] ?? '',
datum: formattedDate,
@@ -245,4 +428,4 @@ class _CitizensForum extends State<IssueList> {
},
);
}
}
}*/