Most voted "firebase" questions
Firebase is a platform for real-time storage-based application development and data synchronization using client-side code only.
Learn more…797 questions
Sort by count of
-
0
votes0
answers32
viewsHow do I get the Firebase session id for my session?
if (user) { // User is signed in. var displayName = user.displayName; var email = user.email; var emailVerified = user.emailVerified; var photoURL = user.photoURL; var isAnonymous =…
-
0
votes1
answer1430
viewsCheck Login in Firebase
Good afternoon ! I’m having a hard time in an app I’m creating with firebase... Next, I have the login workshop and in it I have the login button with the google account, what I want to do is the…
-
0
votes2
answers160
viewsSharedpreferences - Firebase android
I am logging in normally but quado close application, back to login screen. I’m trying to run sharedPreferences but I’m not successful. public static final String PREF_NAME =…
-
0
votes1
answer65
viewsUpdate ng-repeat when receiving Firebase values
Hello! I’m learning to use Angularjs now, but I’m already an experienced programmer on Android. I correctly receive data from firebase, but the ng-repeat does not update when the array is changed.…
-
0
votes1
answer262
viewsEdittext already completed after user login using firebase
Hello! I’m having second thoughts about a process I’m having trouble doing. I have the following screen, and I wanted the user Edittext is already filled with the user’s name or the user’s email.…
-
0
votes2
answers913
viewsSort data by date in Firebase
I would like to sort the data returned from Firebase by Due Date, at the moment I am doing as follows: this.Collection = document.collection('values', ref => ref.orderBy('data_vencimento')); But…
-
0
votes2
answers1479
viewsHow to delete a specific Child in Firebase?
I want to delete only 1st Child (L7jrj6dtqwrmzsc4zvt) from Firebase through an option in an Android app. I searched several places and could not find. I only found the option to delete the whole…
-
0
votes2
answers201
viewsFirebase does not work with multiple apps
all right? I started a project in Firebase and Linkei two related applications in the same project. I made an equal login/signin system for both. It turns out that for an app, Sign in works normal…
-
0
votes0
answers37
viewsAndroid app integrated with html site with database
I need help on a matter. My TCC consists of a didactic application, which receives all its content (Text and images) through an HTML site. Is it possible for all this to work through the FIREBASE…
-
0
votes1
answer185
viewsFirebaseuth stopped authenticating the user
In the app, before the user sign in, they need to log in with email and password. If you don’t have it you can create an account. The problem happened last night, already registered users can not…
-
0
votes1
answer1264
viewsSend application data to Firebase - Delphi
Hi, I have an app almost ready. But in the end she will need to put some data in 2 Tedits like name and email, when she clicks on Tbutton I want this information to be recorded in Firebase, which I…
-
0
votes3
answers202
views(Angularfire2 + Ionic3) Recover value from a Child for a variable
Good morning guys, I am new to the Ionic/Angularfire branch and I am facing a great difficulty to recover the value of a Child within my Database. The idea is to take this value and store it in a…
-
0
votes0
answers202
viewsFirebase API Scheduled Notification
I’m trying to schedule a specific time and I want to send a notification using Firebase. I am working on the project where I have to submit the notification shortly after two hours of the current…
-
0
votes0
answers32
viewsRecover Firebase Data in Other App
I have a User App that sends a request that will be received by a Company App. For now the user App sends data that is being recorded only in Firebase. How do I recover this data in the other…
-
0
votes1
answer45
viewsProblem with Firebasepp call
I have a fragment that performs user registration and login using Firebase. However, I’m having trouble with the initializeApp(Context) method. Follows the code: @Override public View…
-
0
votes1
answer991
viewsPush, via php, for all users
I am working on a project with Ionic 3 and backend in php/mysql. At the current stage I need to send push notifications and chose to work with firebase and phonegap-plugin-push. I installed and…
-
0
votes1
answer200
viewsUpload image base 64 to Firebase
Hello, I am trying to upload Base64 images to firebase, but am getting the following error. I tried to follow the Firebase tutorial on the official website and one found here on the stack itself,…
-
0
votes1
answer53
viewsOptimize firebase cloud Storage
I’m developing an application using the Firebase Realtime Database and the Firebase Cloud Storage. According to the documentation, to access an image I need to invoke the method getDownloadURL in…
-
0
votes1
answer210
viewsUse Searchview to search for a populated model class with firebase
Good night ! I am stuck in a problem, in this I have a list of items I receive from firebase, in this list I have visibly 3 attributes of the model class (idAtivity, title and time), thus, I would…
-
0
votes1
answer70
viewsSearch string snippets
In a search filtered in java using .startWith (query) for example: I want to search "Military Police" in the search I type "Police" and appears police, ok. If I type "military", does not appear in…
-
0
votes1
answer229
viewsHow to change default project in Firebase via terminal?
I am trying to host a website in firebase, I followed correctly the steps that were guided by the platform. I defined a standard project in the "firebase init" step and now I want to define another…
-
0
votes1
answer3704
viewsRecovering Data on Firebase Android with Class
I have this bank structure that is this In my class I have a function called getLocal (), where she would take the name Iguatemi. of this structure. However when performing the query it is returning…
-
0
votes0
answers150
viewsFirebase authentication check problem (Number phone)
Hello! I am trying to build a firebase record with phone number. I did the procedures I found in:…
-
0
votes0
answers419
viewsE/Recyclerview: On Adapter Attached; Skipping layout on time access the main menu
To produce a shopping mall in my application I made a recyclerview in my main menu to demonstrate all the products that are in the database. I am trying to connect the field known as "Category" to…
-
0
votes1
answer109
viewsNull Object Reference when listing data with Firebaserecycleradapter
I’m trying to popular a Recyclerview with the Firebaserecycleradapter. When the onBindViewHolder method is called to popular the layout through the Viewholder class, the error is triggered:…
-
0
votes1
answer322
viewsQuery in firestore to check item inside a document
I’m using the Firebase Firestore and I need to mount a *query that checks the following data as pointed out in the following figure: Because he’s in one array, inside my document, I don’t know how…
-
0
votes0
answers77
viewsHow to Enable Offline Persistence in Firestore with Vue.js
I’m having a problem enabling Firebase’s offline persistence mode. I am using Vue.js with Electron and my Firebase configuration file is as follows: Is returning this error: I hope someone can give…
-
0
votes1
answer582
viewsAndroid Development Recovering Firebase Data
Hello guys I come again for answers, I have a bank in firebase that has some movies and series and even tv shows, wanted to separate in genres these attributes, Example: whatever serial gets fixed…
-
0
votes1
answer138
viewsSearch in Firebase
Good morning friends, I have the following structure at firebase. I need to search my bank, displaying all the products that are on Child Sem Barra, and also the supermarkets and price that are…
-
0
votes0
answers150
viewsDelete child node in firebase with React-Native and Redux
Does anyone know how to delete an item from a Listview in React-Native using firebase as a database? In case I want to delete only the item marked in the print below:…
-
0
votes2
answers514
viewsQuery result null Firebase
Hello folks I’m having a problem to perform query in firebase database. This is the bank: I’m trying to carry out a search of all the restaurants that have the name Iguatemi, until then according to…
-
0
votes1
answer346
viewsRemove Child Firebase
Hello, I’m starting to study Firebase and I’m putting together a simple Timeline, but I stopped in time to try to delete a particular post. I’ve seen people say it’s done by remove(), but I don’t…
-
0
votes1
answer27
viewsHow do I add the Firebase API to my android project?
I was researching about and found it quite interesting, but I do not know what is necessary and how to use
-
0
votes2
answers295
viewsHow to create an array with results obtained through an observable<any[]> TYPESCRIPT
Well, I get a key array,: addprd(a:string){ this.prdarray.push(a); } After adding the keys I want to use in the search I use the following medoto: queryProd(as:string){ const prdN…
-
0
votes1
answer44
viewsFirebase Deploy displays 'waiting for Apis' message to enable
Talk guys, I’m doing my first deployment on Firebase, and I came across this beautiful. Unfortunately I found nothing on the interwebs about, and I turn to you as always, there is something I can do…
-
0
votes1
answer333
viewsPopular a spinner with data stored in a node in Firebase for Android
I’m performing a service for a client where I need to popular a Spinner with data stored in a node in Firebase. I’ve tried several tutorials, but no result. I created two entities in my project, an…
-
0
votes2
answers49
viewsChange the color of a list according to a certain variable
I’m trying to get my schedule list to have each line with different colors for each category that was defined, this list is filled by data recovered from firebase that goes to the model class,…
-
0
votes0
answers148
viewsinsert an item into a firebase list
I’m developing a design with angular 4 and firebase. My problem is this. I have a travel list I want to create a trip (viagem1 and insert a schedule in it. until then I made a…
firebaseasked 6 years, 5 months ago Diego Domiciano 1 -
0
votes2
answers195
viewsOptimize Firebase Realtime Database and Firebase Storage actions
How can I optimize user experience and application fluidity when I’m, for example, reading data from Firebase Database or even downloading Files from Storage? Using runnable’s to handle processes or…
-
0
votes1
answer863
viewsHow to enable Firebase persistence offline
I’m having trouble enabling firebase’s offline data persistence in my app. The problem is this, I have an auxiliary class called Configurationfirebase which starts the required firebase objects, to…
-
0
votes1
answer160
viewsWhere in string list does not work Cloud Firestore
I am unable to return the documents from a collection where this document has a field called tags that is a list of strings with the tag ID. Below follows the code of what I’m trying to do: document…
-
0
votes0
answers30
viewsHow to limit the time of a query to Firebase?
I would like to know how to limit the time of requests to firebase or even cancel the ongoing consultation if there is delay in the bank’s reply.
-
0
votes1
answer44
viewsHow to recover data in firebase?
Hello I’m new to firebase, and I’m having trouble recovering some values. SQL select * from aparmanto where andar< 22 or quarto=>2; select * from aparmanto where andar> 22 and quarto=>2;…
-
0
votes1
answer144
viewshow do I search the groups the user participates in Firebase?
I have an android app java and want to know how I do a search of the groups that a user participates... how do Join to search only the groups that the user participates in (the Attendee table links…
-
0
votes2
answers153
viewsReact-Native incompatibility 0.55.4
react-native init --version 0.55.4 aplicativo I used version 0.55.4 because the current version is giving error 500 npm install firebase --save I used these two commands on the console, and went to…
-
0
votes1
answer264
viewsFirebase ID count - Android
In my application, I have an entity called Game which has, among other attributes, a ID. I need that each time this entity is instantiated the ID is incremented + 1. This works until the application…
-
0
votes1
answer21
viewsUnity Firebase - Problem logging in
Good afternoon, I have a project I created to test firebase... Everything works perfectly however when I take this project and open it on another pc, I can not login to any user I created on the…
-
0
votes0
answers104
viewsProblem creating project in Firebase
When I add the dependencies that firebase asks to create the file and I give Sync Project, it shows me the error "Failed to resolve: com.android.support:appcompat-v7:28.1.0"…
-
0
votes1
answer180
viewsBring only firebase-specific data
Well, I’m trying to develop an app with Ionic 3 and Firebase. But I’m having problems. You are bringing all the orders, for all users (getAll). I wanted to know the correct way for me to bring only…
-
0
votes1
answer23
viewsDefinition of Realtimedatabase rules
As should be my rules, so that a user logged in the app has access, can read and write only in your requests ??? { "requests" : { "-Lmqitihar-Vumkpq8fd" : { "name" means "asdasdsa", "tel" as in…