Questions tagged as 'firebase'

Tagged questions
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How can I run an observable with data obtained from firebase

I need to go through an observable obtained from firebase, where I compare a id , to be able to create a array with the data belonging to this id . ' import { Component } from '@angular/core'; import { NavController, Aler...
asked by 08.04.2017 / 03:35
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My authentication application in adroid studio always marks failed authentication

I already have my application but because more than I put the correct username and password it tells me that it is invalid, and this code had already done it before and if it worked, I do not know what I'm doing wrong package com.example...
asked by 22.04.2017 / 04:34
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Problem integrating Firebase with Nativescript

Good afternoon. I'm starting a project with Nativescript and I just started playing it. I want to integrate it with Firebase and I get an error. The application is built correctly but when I go to initialize it I get an error screen and it do...
asked by 06.04.2017 / 19:51
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how to make a query with a "like" in firebase

Greetings I'm trying to make a query similar to select * from where name =% data%, e seen the methods startAt and endAt but they do not work, any suggestion is appreciated     
asked by 06.04.2017 / 19:31
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Check username already registered Firebase Android

Backend: Firebase / Language, platform: Java, Android. The problem is this: If I use the code snippet that checks if the username was already registered, the app does not work and does not save the data in the database or register the...
asked by 13.04.2017 / 03:35
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Modify Firebase security rules from Android

Hi, I'm trying to make an app in which an administrator grants privileges to certain users. To do this, users register in FireBase and the Firebase security rules grant whether or not they can access certain nodes. The problem is that I do not k...
asked by 05.03.2017 / 19:58
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Close firebase session when closing activity-Android

I want to create a kind of login, that by checking a checkbox, I can remember the session or end the session when closing the application if the checkbox is disabled, for that I use sharedpreferences to save the status of the checkbox, but when...
asked by 22.03.2017 / 04:40
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Use Firebase without Internet

Good, I ask you another question, because I know I can count on your help. I have been starting to use Firebase, which is why I have some doubts. If Firebase is made to be used without internet, then how do I confirm if an "action" is execute...
asked by 23.02.2017 / 04:17
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How to save data from TextInputEditTex of Android Studio in FirebaseDatabase?

In Firebase: I have already created my Firebase application In Database > Rules, I have the following: { "rules": { ".read": "true", ".write": "true" } } On Android: I already imported compile 'com.google.firebase: f...
asked by 22.01.2017 / 18:47
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FCM, I can not create topics / topics to send notifications

I have an application that uses the firebase notification service, the problem is that I can not create topics or topics, seeing the documentation would be created with the following line: FirebaseMessaging.getInstance().subscribeToTopic(nueva...
asked by 09.12.2016 / 18:29