Questions tagged as 'firebase-database'

Tagged questions
2
answers

How to create an array with results obtained through an observableany [] TYPESCRIPT

Well, I get an array of keys, which I use to search the firebase: 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 :Observable<...
asked by 04.07.2018 / 12:46
2
answers

How to use firebird 2.1 ABS in firebird 2.0?

I have a client that already has a system that runs in firebird 2.0 and my system runs in the newer version of firebird, so I had to regress the database and have some functions that 2.0 does not have yet ... Like me could you do ABS (catch abso...
asked by 30.04.2018 / 16:43
1
answer

Problem retrieving values from firebase to list

I am making a list, and in this list I pull the following information id, idPost, description, userName and photoUser. But to popular (add) data to this list I'm using the following code snippet inside an activity: itensSalvosRef =...
asked by 15.11.2018 / 12:47
1
answer

List returning null values

I'm doing an item listing, in that listing I bring the following information id, idPost, description, userName and photoUser. After setting the values, I checked them and I'm all displaying correctly, but when I try to display it it shows as...
asked by 06.11.2018 / 17:50
1
answer

Simple search FIREBASE

I'm testing on firebase and I'm having trouble recovering bank data with JS. The table structure is as follows: Scores - key - name - points - key - name - points What I want is to return the s...
asked by 05.09.2018 / 18:58
1
answer

Optimize actions of Firebase Realtime Database and Firebase Storage

How can I optimize the user experience and application fluency when I am, for example, reading data from Firebase Database or even downloading Files from Storage? Using runnable's to handle processes or are there other more efficient ways to do...
asked by 17.07.2018 / 20:44
1
answer

Pass data from Firebase Database by Intent and retrieve in another activity [duplicate]

This is the fragment of my Fragment code in which I need to pass a parameter (Firebase DB id) through an Intent generated by Adapter.setOnClickListener : ... viewHolder.eventoCardView.setOnClickListener(new View.OnClickListener() {...
asked by 22.03.2018 / 00:30
0
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How to merge 2 Firebase tables through one condition.

I need some personal help! As I'm not finding anything very clear on the internet and I do not use a lot of programming, I'll appeal to you ... I am setting up a system for my personal control of the driveway and driveway. As there will be fe...
asked by 14.12.2018 / 13:56
1
answer

Retrieve snapshot within a node

I need to recover all users within a user node, following firebase structure: FormetoretrievethesevaluesI'mmakinganaddListenerForSingleValueEvent,followscode:privateDatabaseReferencefirebaseRef;privateDataSnapshotusuariosSnapshot;firebaseRef...
asked by 07.12.2018 / 12:58
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Voting system on android

I'm a beginner in android programming, and I needed to develop a voting system with several categories, where the user can register to participate, in the system can only give one vote a day, how did I do it? to using firebase since I can not l...
asked by 27.11.2018 / 23:49