retrieve data from firebase flutter

1  static Future<List<AustinFeedsMeEvent>> _getEventsFromFirestore() async {
2CollectionReference ref = Firestore.instance.collection('events');
3QuerySnapshot eventsQuery = await ref
4    .where("time", isGreaterThan: new DateTime.now().millisecondsSinceEpoch)
5    .where("food", isEqualTo: true)
6    .getDocuments();
7
8HashMap<String, AustinFeedsMeEvent> eventsHashMap = new HashMap<String, AustinFeedsMeEvent>();
9
10eventsQuery.documents.forEach((document) {
11  eventsHashMap.putIfAbsent(document['id'], () => new AustinFeedsMeEvent(
12      name: document['name'],
13      time: document['time'],
14      description: document['description'],
15      url: document['event_url'],
16      photoUrl: _getEventPhotoUrl(document['group']),
17      latLng: _getLatLng(document)));
18});
19
20return eventsHashMap.values.toList();
21}
22

1Open the pubspec. ...
2Add your Flutter application to Firebase by clicking on the Android icon.
3Add your application's package name as shown in the image below.
4You can find your package name in the app-level – build. ...
5Download the google-services. ...
6Paste classpath 'com.
7

1Open the pubspec. ...
2Add your Flutter application to Firebase by clicking on the Android icon.
3Add your application's package name as shown in the image below.
4You can find your package name in the app-level – build. ...
5Download the google-services. ...
6Paste classpath 'com.