Firebase variable not updating
up vote
1
down vote
favorite
I'm a bit puzzled by strange problem.
I'm trying to access a value on a Firebase database.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
Log.e(TAG, "Time is: " + time[0]);
The time variable is what I want to access.
The Logcat shows the following:
Location frequency is 5 seconds.
Time is: 0
What seems to be the problem? It seems to access the database fine, but the variable isn't updated. What am I doing wrong?
Thanks in advance!
android 
firebase firebase-realtime-database edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
asked Nov 10 at 14:37
dj.rodrigues
184
add a comment |
up vote
1
down vote
favorite
I'm a bit puzzled by strange problem.
I'm trying to access a value on a Firebase database.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
Log.e(TAG, "Time is: " + time[0]);
The time variable is what I want to access.
The Logcat shows the following:
Location frequency is 5 seconds.
Time is: 0
What seems to be the problem? It seems to access the database fine, but the variable isn't updated. What am I doing wrong?
Thanks in advance!
android firebase firebase-realtime-database edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
asked Nov 10 at 14:37
dj.rodrigues
184
1
In addition to @ManishParajapati's answer, see stackoverflow.com/a/46387410, stackoverflow.com/q/33203379, stackoverflow.com/a/38460676, stackoverflow.com/a/50435519 and quite a few more.
– Frank van Puffelen
Nov 10 at 15:16
Never thought this would be the problem. I'm still learning I guess :) Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I'm a bit puzzled by strange problem.
I'm trying to access a value on a Firebase database.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
Log.e(TAG, "Time is: " + time[0]);
The time variable is what I want to access.
The Logcat shows the following:
Location frequency is 5 seconds.
Time is: 0
What seems to be the problem? It seems to access the database fine, but the variable isn't updated. What am I doing wrong?
Thanks in advance!
android firebase firebase-realtime-database edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
asked Nov 10 at 14:37
dj.rodrigues
184
I'm a bit puzzled by strange problem.
I'm trying to access a value on a Firebase database.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
Log.e(TAG, "Time is: " + time[0]);
The time variable is what I want to access.
The Logcat shows the following:
Location frequency is 5 seconds.
Time is: 0
What seems to be the problem? It seems to access the database fine, but the variable isn't updated. What am I doing wrong?
Thanks in advance!
android firebase firebase-realtime-database android firebase firebase-realtime-database edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
asked Nov 10 at 14:37
dj.rodrigues
184
edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
asked Nov 10 at 14:37
dj.rodrigues
184
edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
edited Nov 10 at 15:12
Frank van Puffelen
218k25361385
218k25361385
asked Nov 10 at 14:37
dj.rodrigues
184
asked Nov 10 at 14:37
dj.rodrigues
184
asked Nov 10 at 14:37
dj.rodrigues
184
184
1
In addition to @ManishParajapati's answer, see stackoverflow.com/a/46387410, stackoverflow.com/q/33203379, stackoverflow.com/a/38460676, stackoverflow.com/a/50435519 and quite a few more.
– Frank van Puffelen
Nov 10 at 15:16
Never thought this would be the problem. I'm still learning I guess :) Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
1
In addition to @ManishParajapati's answer, see stackoverflow.com/a/46387410, stackoverflow.com/q/33203379, stackoverflow.com/a/38460676, stackoverflow.com/a/50435519 and quite a few more.
– Frank van Puffelen
Nov 10 at 15:16
Never thought this would be the problem. I'm still learning I guess :) Thanks!
– dj.rodrigues
Nov 10 at 15:30
1
1
In addition to @ManishParajapati's answer, see stackoverflow.com/a/46387410, stackoverflow.com/q/33203379, stackoverflow.com/a/38460676, stackoverflow.com/a/50435519 and quite a few more.
– Frank van Puffelen
Nov 10 at 15:16
In addition to @ManishParajapati's answer, see stackoverflow.com/a/46387410, stackoverflow.com/q/33203379, stackoverflow.com/a/38460676, stackoverflow.com/a/50435519 and quite a few more.
– Frank van Puffelen
Nov 10 at 15:16
Never thought this would be the problem. I'm still learning I guess :) Thanks!
– dj.rodrigues
Nov 10 at 15:30
Never thought this would be the problem. I'm still learning I guess :) Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
1 Answer
1
active
oldest
votes
up vote
2
down vote
accepted
It is 0 because it is not updated yet, as firebase runs a async task to complete the listeners.
You are accessing Log.e(TAG, "Time is: " + time[0]); line of code outside onComplete listener. This line of code is executed before even the firebase has completed its fetching. You can implement a method call and access the Time from there.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
showTime(); // Added a method call
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
public void showTime(){ // perform your action after the firebase task is completed
Log.e(TAG, "Time is: " + time[0]);
}
answered Nov 10 at 14:49
ManishPrajapati
166212
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
1
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
It is 0 because it is not updated yet, as firebase runs a async task to complete the listeners.
You are accessing Log.e(TAG, "Time is: " + time[0]); line of code outside onComplete listener. This line of code is executed before even the firebase has completed its fetching. You can implement a method call and access the Time from there.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
showTime(); // Added a method call
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
public void showTime(){ // perform your action after the firebase task is completed
Log.e(TAG, "Time is: " + time[0]);
}
answered Nov 10 at 14:49
ManishPrajapati
166212
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
1
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
up vote
2
down vote
accepted
It is 0 because it is not updated yet, as firebase runs a async task to complete the listeners.
You are accessing Log.e(TAG, "Time is: " + time[0]); line of code outside onComplete listener. This line of code is executed before even the firebase has completed its fetching. You can implement a method call and access the Time from there.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
showTime(); // Added a method call
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
public void showTime(){ // perform your action after the firebase task is completed
Log.e(TAG, "Time is: " + time[0]);
}
answered Nov 10 at 14:49
ManishPrajapati
166212
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
1
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
It is 0 because it is not updated yet, as firebase runs a async task to complete the listeners.
You are accessing Log.e(TAG, "Time is: " + time[0]); line of code outside onComplete listener. This line of code is executed before even the firebase has completed its fetching. You can implement a method call and access the Time from there.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
showTime(); // Added a method call
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
public void showTime(){ // perform your action after the firebase task is completed
Log.e(TAG, "Time is: " + time[0]);
}
answered Nov 10 at 14:49
ManishPrajapati
166212
It is 0 because it is not updated yet, as firebase runs a async task to complete the listeners.
You are accessing Log.e(TAG, "Time is: " + time[0]); line of code outside onComplete listener. This line of code is executed before even the firebase has completed its fetching. You can implement a method call and access the Time from there.
final long time = {0};
firebaseAuth = FirebaseAuth.getInstance();
email = FirebaseAuth.getInstance().getCurrentUser().getEmail();
DocumentReference docRef = db.collection("location_times").document(email);
docRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
Log.e(TAG, "DocumentSnapshot data: " + document.get("time"));
time[0] = (long) document.get("time");
Log.e(TAG, "Location frequency is " + time[0] + " seconds.");
showTime(); // Added a method call
} else {
Log.e(TAG, "No such document");
}
} else {
Log.e(TAG, "get failed with ", task.getException());
}
}
});
public void showTime(){ // perform your action after the firebase task is completed
Log.e(TAG, "Time is: " + time[0]);
}
answered Nov 10 at 14:49
ManishPrajapati
166212
edited Nov 10 at 15:04
answered Nov 10 at 14:49
ManishPrajapati
166212
answered Nov 10 at 14:49
ManishPrajapati
166212
answered Nov 10 at 14:49
ManishPrajapati
166212
166212
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
1
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
1
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
I still have to access that variable immediately after the Firebase task. Where can I call that new method?
– dj.rodrigues
Nov 10 at 14:58
1
1
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
I have added a new method showTime() in onCompleteListener, it will call that method immediately once the firebase task is completed and your if condition is met.
– ManishPrajapati
Nov 10 at 15:03
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
It works now! Thanks!
– dj.rodrigues
Nov 10 at 15:30
add a comment |
draft saved
draft discarded
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53240001%2ffirebase-variable-not-updating%23new-answer', 'question_page');
}
);
Post as a guest
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
1
In addition to @ManishParajapati's answer, see stackoverflow.com/a/46387410, stackoverflow.com/q/33203379, stackoverflow.com/a/38460676, stackoverflow.com/a/50435519 and quite a few more.
– Frank van Puffelen
Nov 10 at 15:16
Never thought this would be the problem. I'm still learning I guess :) Thanks!
– dj.rodrigues
Nov 10 at 15:30