google-cloud-firestore

问题 I am trying to build an app using Flutter and Firestore. When loading a Collection from Firestore using StreamBuilder to display it in a ListView, I get the following error The following assertion was thrown building StreamBuilder<QuerySnapshot>(dirty, state: I/flutter (26287): _StreamBuilderBaseState<QuerySnapshot, AsyncSnapshot<QuerySnapshot>>#d5638): I/flutter (26287): type '_InternalLinkedHashMap<dynamic, dynamic>' is not a subtype of type 'Map<String, dynamic>' I/flutter (26287): where I

问题 I am trying to build an app using Flutter and Firestore. When loading a Collection from Firestore using StreamBuilder to display it in a ListView, I get the following error The following assertion was thrown building StreamBuilder<QuerySnapshot>(dirty, state: I/flutter (26287): _StreamBuilderBaseState<QuerySnapshot, AsyncSnapshot<QuerySnapshot>>#d5638): I/flutter (26287): type '_InternalLinkedHashMap<dynamic, dynamic>' is not a subtype of type 'Map<String, dynamic>' I/flutter (26287): where I

问题 It is fairly straightforward hot to set basic types inside Firestore. But I cannot find how to construct Geopoint, Timestamp and another document reference with flutter Firestore plugin. What do you assing inside data that you set to the coollection Map<String,dynamic> for each object? Any help or examples? 回答1: I created manually an object on the server and got it inside my flutter app. For TimeStamp you can pass DateTime object directly from dart. For Geopoint there is GeoPoint object

问题 It is fairly straightforward hot to set basic types inside Firestore. But I cannot find how to construct Geopoint, Timestamp and another document reference with flutter Firestore plugin. What do you assing inside data that you set to the coollection Map<String,dynamic> for each object? Any help or examples? 回答1: I created manually an object on the server and got it inside my flutter app. For TimeStamp you can pass DateTime object directly from dart. For Geopoint there is GeoPoint object

问题 It is fairly straightforward hot to set basic types inside Firestore. But I cannot find how to construct Geopoint, Timestamp and another document reference with flutter Firestore plugin. What do you assing inside data that you set to the coollection Map<String,dynamic> for each object? Any help or examples? 回答1: I created manually an object on the server and got it inside my flutter app. For TimeStamp you can pass DateTime object directly from dart. For Geopoint there is GeoPoint object

问题 It is fairly straightforward hot to set basic types inside Firestore. But I cannot find how to construct Geopoint, Timestamp and another document reference with flutter Firestore plugin. What do you assing inside data that you set to the coollection Map<String,dynamic> for each object? Any help or examples? 回答1: I created manually an object on the server and got it inside my flutter app. For TimeStamp you can pass DateTime object directly from dart. For Geopoint there is GeoPoint object

问题 Working on a flutter application where I'm using firebase cloud firestore for storing all my documents. My document has a startDateTime field having a format like this... I want to fetch all records whose startDateTime is greater than or equal to current date. Here is my flutter code to do this... Firestore.instance.collection("trips") .where("trip.createdByUID", isEqualTo: this.userDetails['id']) .where("trip.startDateTime", isGreaterThanOrEqualTo: new DateTime.now().toString() )

问题 Working on a flutter application where I'm using firebase cloud firestore for storing all my documents. My document has a startDateTime field having a format like this... I want to fetch all records whose startDateTime is greater than or equal to current date. Here is my flutter code to do this... Firestore.instance.collection("trips") .where("trip.createdByUID", isEqualTo: this.userDetails['id']) .where("trip.startDateTime", isGreaterThanOrEqualTo: new DateTime.now().toString() )

问题 Working on a flutter application where I'm using firebase cloud firestore for storing all my documents. My document has a startDateTime field having a format like this... I want to fetch all records whose startDateTime is greater than or equal to current date. Here is my flutter code to do this... Firestore.instance.collection("trips") .where("trip.createdByUID", isEqualTo: this.userDetails['id']) .where("trip.startDateTime", isGreaterThanOrEqualTo: new DateTime.now().toString() )

问题 Working on a flutter application where I'm using firebase cloud firestore for storing all my documents. My document has a startDateTime field having a format like this... I want to fetch all records whose startDateTime is greater than or equal to current date. Here is my flutter code to do this... Firestore.instance.collection("trips") .where("trip.createdByUID", isEqualTo: this.userDetails['id']) .where("trip.startDateTime", isGreaterThanOrEqualTo: new DateTime.now().toString() )