firebase-realtime-database

问题 I have an existing Firebase project that I am trying to import into the new Firebase 3.0 version that was just released at Google I/O 2016. Every time I try to import it, I keep getting this error with no helpful message on how to fix it or what the actual problem is. 回答1: It Sometimes related to your extensions that you have added them before for example I had Enable Cross Origin * Extension and Firebase did nothing at all. 回答2: Sorry you've had trouble! No open-and-shut answer here, but

问题 I'm simply just trying to populate data from Firebase Database into my listview. The logs are showing the data is being retrieved, but the adapter won't set the values to the text in a single list item in the list? All it says is "No setter/field for INSERT VALUE ". Which makes me think that I didn't have my setters made correctly but there were auto generated by Android Studio. I don't know what I am missing here. Any help is appreciated. NODE OBJECT package com.megliosolutions.ipd.Objects;

问题 My data on firebase uses many fields which have string type, but really are enum values (which I check in my validation rules). To download the data into my Android app, following the guide, the field must be a basic String . I know I can work around this with a second (excluded) field which is an enum, and set this basing on the string value. A short example: class UserData : BaseModel() { val email: String? = null val id: String = "" val created: Long = 0 // ... more fields omitted for

问题 My data on firebase uses many fields which have string type, but really are enum values (which I check in my validation rules). To download the data into my Android app, following the guide, the field must be a basic String . I know I can work around this with a second (excluded) field which is an enum, and set this basing on the string value. A short example: class UserData : BaseModel() { val email: String? = null val id: String = "" val created: Long = 0 // ... more fields omitted for

问题 I got a problem related to Firebase and Java EE. I'm currently writing some Java servlets for my project and I'm using Firebase the first time because I wanted to try something new. My actual problem is the following: I got a servlet which is responsible for exchanging an iOS device token in an user database. This is necessary for sending Remote Push Notifications to a device. I've done this like in the google tutorials, but I'm getting the following exception: java.lang.IllegalStateException

问题 I have this code in my populateViewHolder : public void populateViewHolder(final CampaignHolder viewHolder, final Campaign campaign, final int position) { String k = getRef(position).getKey(); ref.child(k).child("users").addListenerForSingleValueEvent(new ValueEventListener() { @Override public void onDataChange(DataSnapshot dataSnapshot) { if (!dataSnapshot.hasChild(getUid())) { //Something... } } @Override public void onCancelled(DatabaseError databaseError) { } }); //...Populating the

问题 I have this code in my populateViewHolder : public void populateViewHolder(final CampaignHolder viewHolder, final Campaign campaign, final int position) { String k = getRef(position).getKey(); ref.child(k).child("users").addListenerForSingleValueEvent(new ValueEventListener() { @Override public void onDataChange(DataSnapshot dataSnapshot) { if (!dataSnapshot.hasChild(getUid())) { //Something... } } @Override public void onCancelled(DatabaseError databaseError) { } }); //...Populating the

问题 I have this code in my populateViewHolder : public void populateViewHolder(final CampaignHolder viewHolder, final Campaign campaign, final int position) { String k = getRef(position).getKey(); ref.child(k).child("users").addListenerForSingleValueEvent(new ValueEventListener() { @Override public void onDataChange(DataSnapshot dataSnapshot) { if (!dataSnapshot.hasChild(getUid())) { //Something... } } @Override public void onCancelled(DatabaseError databaseError) { } }); //...Populating the

问题 How to get the Firebase path (location string without the hostname part such as "users/user1" ) given the Firebase reference? I can't find in the docs and tried to search but no luck. Now I did like this in Node.js, given Firebase reference ref : var url = require('url'); // standard Node.js 'url' module. var location = url.parse(ref.toString()).pathname; Is this the correct way to do or there exist a more reliable way? PS. I saw ref.path.o is the array containing the strings that can

问题 How to get the Firebase path (location string without the hostname part such as "users/user1" ) given the Firebase reference? I can't find in the docs and tried to search but no luck. Now I did like this in Node.js, given Firebase reference ref : var url = require('url'); // standard Node.js 'url' module. var location = url.parse(ref.toString()).pathname; Is this the correct way to do or there exist a more reliable way? PS. I saw ref.path.o is the array containing the strings that can