Recent questions tagged FireBase

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firebase - Firestore collection query as stream in flutter

I'm trying to query a few documents from a collection, this query should listen to changes made in the queried ... it doesn't get any data See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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783 views

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firebase - Android FirebaseUI sign in with Google error for release key

I'm getting the the Developer (Code:10, message:10:) error when trying to sign in using Google Sign-in while using FirebaseUI ... ": 1, "android_info": { "package_name": "com.f**...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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713 views

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firebase realtime database - How to remove Optional from String Value Swift

I'd like to use a String value without the optional extension. I parse this data from firebase using the ... lng self.radius = radius } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Query data in multiple collections

I am developing a chat app using Firebase Firestore. I have a collection for room chat and another one ... my database structure: Please help See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Firestore query orderBy not working?

FutureBuilder with a Firestore query on a field of Type timestamp comes back with no data in snapshot. However, the ... (context, snapshot) ... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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692 views

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firebase - Flutter FCM 7 on iOS 14

For everyone who goes crazy from FCM after updating to iOS14 & Xcode12. I spent 2 days resolving the issues. ... steps, my FCM work correctly. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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765 views

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firebase - How to export security and index rules from Firestore?

I've set up multiple different indexes on my Firestore development database. Now, I would like to export them into ... I can copy paste them. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Crashlytics - how can I delete builds/versions?

I want to delete 2 of the builds/versions from the Crashlytics dashboard - they were uploaded with the wrong ... remove them from Crashlytics. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - What Does WidgetsFlutterBinding.ensureInitialized() do?

I am trying to use the Firebase package with the below line of code. I really want to know what this line ... . Can someone explain me, please? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Firestore: difference between set() and add()

What is the difference between set() and add() in Firestore? I use the set() to add documents to my ... or understand add() from docs. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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795 views

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firebase - Where does one set the Oauth Redirect URI for Facebook apps?

We are being asked to set the OAuth redirect URI for Facebook (as shown below) in the instructions to set ... Settings > Facebook Login config. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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firebase - How do I save data from cloud firestore to a variable in swift?

I want to save a particular field from a document into a variable. My code so far: func getDocument(path: ... in a variable and return it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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630 views

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firebase - Parent document is being marked as "deleted" (italics) by default

I am having a weird issue where our parent document is being marked as deleted. I am inserting a new document ... newly created for the user. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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firebase - Restrict an array size up to N indices (Security Rules)

Consider the following maximum array size: Now let's say a user performs a push() childByAutoId. What I expect ... "attempt" code to present. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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889 views

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firebase - What is the exact size of a Firestore document?

The docs says that the size of a document is composed of: document name size The sum of the string size of ... the maximum 1,048,576 allowed. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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798 views

1 answer

firebase - Firestore order by two fields in one query

I asked a question a little over a week ago. Firestore order by two fields The response I got said that: ... population ordered by name. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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598 views

1 answer

firebase - How to restrict access to files to group members?

I have a chat app where users can send photos in private or group chats. Each private or group chat has a ... Or is this prevented by design? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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775 views

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firebase - Firestore - How to update a field that contains period(.) in it's key from Android?

Updating a field contains period (.) is not working as expected. In docs, nested fields can be updated by providing ... (uid).update(pkg, score) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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firebase - How to order data from Firestore in Flutter, orderBy not ordering correct

I'm building an app where the users can write into my db and ask questions to other users, like a ... Data In FireStore Best regards, Rusben See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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firebase - Google Cloud Functions with ECONNRESET errors until I redeploy

I'm using Google Cloud Functions to: Watch for a new Firebase entry Download a file that's referenced in ... Is something hanging or something? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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788 views

1 answer

firebase - Flutter ListView Jumps To Top

I am creating a news feed for my app and as I scroll down data is fetched from Firestore. As soon as I scroll up the ... [index]),); }); }, ); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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908 views

1 answer

firebase - What is storage size limitation of an array in Firestore?

I want to know what is storage size limitation of an array in Firestore. I want to create millions of index ... not get any proper guide there. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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788 views

1 answer

firebase - Multiple dex files define Lcom/google/android/gms/internal/measurement/zzabn

Since this morning I cannot build my Android app because I get this error What went wrong: Execution failed for task ... way to build the app? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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firebase - flutter firestore, add new object in array

I have array of objects, I want to add new object when user enter new data in the array? Firestore.instance ... can I achieve this with flutter? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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693 views

1 answer

firebase - Ordering data does not actually order anything

I'm trying to get a dataset of messages out of my firebase database and want the messages sorted by ... with Firebase Kind regards, Namanix See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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807 views

1 answer

firebase - How to access array index of Cloud Firestore using query in Flutter?

I have field users in document and this field contains two element in array. I have to check specific ... (); simple firestore structure See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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784 views

1 answer

firebase cloud messaging - Can a server find out which message topics have subscribers?

Is there a way for server application that sends topic messages over FCM to find out which topics actually have ... just get it from there. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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616 views

1 answer

firebase - Retrieve String value from function with closure in Swift

I am trying to retrieve a string value from Firebase in order to get each username with an unique UID ... ("whatevertheidmightbe"). Ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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