Most voted "firebase" questions
Firebase is a platform for real-time storage-based application development and data synchronization using client-side code only.
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answer84
viewsProblems sending a notification
I’m using the following code to send notification from android and not console public static void pushFCMNotification(String userDeviceIdKey) throws Exception { URL url = new…
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answers556
viewsPersistence and reading of Firebase data
would like to have a data structure in the Firebase database Realtime similar to this: { "codigo": "01", "Data": "1234567890", "usuario": "{codigo : 01, nome : Rafael}" } have the class: class…
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answers53
viewsFirebase user update with SDK node
I am trying to update login data of a firebase user using the Node admin sdk. My code looks like this: var uid = req.body.uid; var objectUpdate = { "displayName": "David Coelho" };…
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answer281
viewsTell Likes Firebase Android
So I’m with a project here from an appblog, I need help now so I can count the likes. mDatabaseLike = FirebaseDatabase.getInstance().getReference().child("Likes"); } });…
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answer184
viewsadd to firebase with angularfire $add
My scripts: <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.0/angular.min.js"></script> <script…
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answers926
viewsFirebase database or API Rest PHP Mysql. Which is the best choice and which Google recommends
I graduated college at the end of the year. I did Systems Analysis and Development, and there I had programming class for mobile devices, more specifically for Android. In class the teacher taught…
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answer1181
viewsSave user information to Firebase Realtime Database
In accordance with the documentation says, one should not use the getUid() user to authenticate users to the backend server; instead, use the getToken(). However, I see a lot of code out there using…
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answers205
viewsFirebase Auth with Facebook - Save information to Realdatabase
Guys, I’m using Firebaseuth to authenticate in my Android app with social networks like Facebook and Google, however, with Google Login I can do in addition to authenticate, save the returned user…
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answers348
viewsHow to create an Activity where the user can create a profile in the application
I am developing an application and in this application the user will be able to create a profile for it, with its name, photo, email, etc. My question is this part of the photo, how do I insert some…
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answers403
viewsFirebase Database - Event-based notifications
I have a project that needs to send notifications when certain data is added to Firebase. I did a lot of web searches, but I couldn’t find a way to implement this notification. I saw in the…
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answer1474
viewsRecover Data from Firebase
With the code below I recover data from a post, ok, with FirebaseRecyclerAdapter I retrieve the comments that are on recyclerview, okay, but the comment appears in all posts, what I want, is to…
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answers162
viewsI cannot enter data in Sqlite Table
I want to insert some data into my Sqlite table. Table creation in . app $cordovaSQLite.execute(db, "CREATE TABLE IF NOT EXISTS tbprodutos( id INTEGER PRIMARY KEY, codbarras NUM, desccupom TEXT,…
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answer475
viewsFirebase - Print records in descending order
I can’t print the records in descending order. I looked on several websites for tips that could help me, but when I adapt to my code, nothing works! My question is this:: I’m creating a game on…
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answers270
viewsFirebase class is not being found for import
I did the whole process below: dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group:…
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answer375
viewsGooglemaps and Firebase in real time - Does not show points
I’m following the tutorial which shows how to connect Firebase to Googlemaps in real time and shows the points of clicks on the map. I can enter the values (lat, long and time) in firebase but I…
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answers73
viewsRelate Ids to Javascript
I need help with Java (I’m a beginner in programming). I have a list of registered firebase players and I need to connect each player with their respective race time. A player has an id= player1 and…
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answers123
viewsRetrieve Child inside getKey
I have a Recycler Adapter with a populateViewHolder that when I click takes the Child key in firebase, in the image box below takes KeGVDMcSt0v5HICwuUm @Override protected void…
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answer59
viewsHow to get an authenticated user to see another user’s posts tbm authenticated?
When I take the node reference in the database and use Child to return the current user data, it works cool, but I don’t know how to implement the data return(posts) of other authenticated users in…
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answers46
viewsBest place to place Dispatch in Collectionview with Firebase
I’m racking my brain with an app based on a few examples of Brian Lets Build That App , adapting your videos to my needs. I’m downloading some images from Firebase and updating a collectionview.…
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answers92
viewsDoubt with Firebase
After hearing about Firebase, and reading about it, I decided it was a good idea to test its use in my Unity app. I read the documentation, followed the configuration tutorials, and even defined the…
firebaseasked 7 years, 6 months ago Artur Trapp 5,175 -
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answer241
viewsFIREBASE WARNING: Using an unspecified index
I’m getting following error: FIREBASE WARNING: Using an unspecified index. Consider Adding ". indexOn": "rota" at /motoristas to your security Rules for Better performance Firebase rules: { "rules":…
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answer79
viewsLogin Firebase using Googlesign
I’m trying to log into the application in Firebase through Googlesign this way: import android.content.Intent; import android.os.Bundle; import android.support.annotation.NonNull; import…
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answer160
viewsPass Firebaserecycleradapter values
How do I pass an object by clicking on a Recycler view item while using a FirebaseRecyclerAdapter? The way I’m doing it is working, I create a list, and in the method populateViewHolder i add the…
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answers255
viewsError while receiving Firebase data
I’m having problems with my TCC, I’m not getting the data from Firebase and display them in a listview, it presents error, I’m using the ValueEventListener to try to get the data... to listview this…
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answer477
viewsGoogle Sigin problem when re-logging into Firebase
I have a little problem logging into Firebase using the Google Sigin. The point is that I am able to log in with this method, but when there is a problem after selecting some account (figure below)…
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answers58
viewsDoubt with the firebase
How do I get this information out of the onDataChange in the same activity everything within the onCreate.... mDatabase.addListenerForSingleValueEvent(new ValueEventListener() { @Override public…
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answer204
viewsListview inside a Tabview with Firebase data
I’m trying to input firebase data into a listview q is already inside a Tabview, but when I try to load firebase data nothing comes. I started Listview inside the onCreateView method, like this:…
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answer2048
viewsGenerate sequential key with firebase
Good morning ! I am working on an app that saves some user activities and I have a problem to save these activities generating sequential numbers, here is the environment: I have the user logged in,…
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answers162
viewsFirebase notification with Javascript
Greetings! Well, I’m developing a Firebase-based project that uses many functions coming from it, such as Firebase Realtime Database to save data and refer to it when necessary, Firebase…
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answer1142
viewsHow to view images in Listview from Firebase?
Well I am receiving numerous information from firebase, and displaying them, however I would like to receive also images, without last storege, I already saved some urls in the database and when I…
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answers218
viewsListview does not return firebase data
I’m trying to popular a listview, but I didn’t succeed. I even tried to follow what happened by the android monitor, and I realized that it is "populating" the listview with null data, as seen in…
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answers98
viewsThunkable x firebase: random result
I set up a block that goes up image to Firebase and it works. Now I need to assemble a block that brings one of these randomly. Some light, if you please?
firebaseasked 7 years, 1 month ago Eduardo Correia 307 -
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answers190
viewsNotification with Firebase Cloud Functions for single device
I have a problem sending notifications using Firebase Cloud Functions, in case I would like the user to send notifications from the site, hosted by Firebase Hosting, to an android device. Since to…
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answer1896
viewsParameters and variables between components [Ionic + Firebase]
I’m with a seemingly simple doubt. I have a project connected to firebase. In this specific case, I have a *ngFor list of breweries on the "breweries.html" page where I pull all the main JSON nodes…
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answer339
viewsError validating date in firebase database
I’m trying to validate whether or not there’s a date in the bank. The situation that occurs is the following, I have a screen with a calendarview, when selecting a date it is displayed in a…
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answer507
viewsCOUNT AT FIREBASE
Hello, Is it possible to do COUNT (record count) in the firebae database? Because I would like to return in my app the total of occurrences created (ALL of all users) and total per user, but, I do…
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answer128
viewsDesktop and cloud system integration
I have a desktop system where I need to send some data to the service Firebase of Google. I would like an idea of what would be the best way to send this data to the Firebase, and it can sometimes…
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answer571
viewsHow to get Firebase notifications received in the background?
I implemented the notification service in my app, working, even receives notification in the background, however I wanted to save the notification message, searched a little and created a service (…
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answers316
viewsError sending data to Firebase
Good afternoon, I am developing an application and I am having problems sending the data to Firebase... I created a Registration screen where you have the email field, password and name. I imported…
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answers3915
viewsERROR Typeerror: Cannot read Property 'push' of null
I am trying to push to a list and the following error is occurring: ERROR TypeError: Cannot read property 'push' of null at…
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answers40
viewsPopular Calendarview with Firebase data via a Datasnapchot
Hello, I’m having difficulty in popular a Calendarview with a Firebase data... is as follows: I have a "Cadastroactivity" where I register events in Firebase with specific days, but now I would like…
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answers138
viewsItext with Firebase on Android
Hello, everybody, all right? I have a question here that I would like you to help Sandra. You can generate a PDF report with itext that contains Firebase data. Type, register several clients during…
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answer43
viewsNotification does not appear in "Assisant" in Firebase
There is no notification option to apply to the project. What should I do? (I’m new to android studio)…
firebaseasked 7 years ago Yuri Sousa 11 -
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answers174
viewsHow to request user data and save to firebase?
I’m starting in the development of android apps, and I’m having a doubt, I’m creating (le-se trying) an app like Tinder, where I have two types of users, the customer and the advertiser, both will…
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answer231
viewsFirebase delay in first database search
Hello I have an order app and maybe he has login registration of everything... However I realized that when do the first search for some data within the application the response time is high and the…
firebaseasked 7 years ago IMoonBlackI 364 -
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answer664
viewsReturn the firebase.auth message in typescript
I’m using Firebase in the back end of this login, but I’m not able to use the information that comes back from firebase.auth to check if it was an error or not and thus set the Autenticacao false or…
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answers129
viewsCan I integrate my Sqlite bank with firebase?
My App is all in Sqlite, can I integrate an App already made in Firebase? If there is a way, there is some place explaining well, because I tried to do and ended up giving Sync error.
firebaseasked 7 years ago Yuri Rodarte 11 -
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answers180
viewsRecover Dynamic Childs on Firebase Android
I have a structure on firebase as follows. In the client app when the person saves the information, creates a Child stored by the number entered in the cell field (creates Child with the person’s…
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answers467
viewsHow to store and use a vector in Firebase on Android?
I have a problem developing my app that I can’t fix and I can’t find anything that would help me. Such an app was running smoothly with data stored in variables, but when including Firebase I had…
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answer235
viewsHow to receive notifications within an Activity
I can send a notification from Firebase to my App but Open that same notification doesn’t open inside the Activity I want. How do I direct this notification to Activity so that I can see the message…