Mixing
Is there a way I can use firebaseUI to populate spinner items like I would do with a ListView or a...
Using childevent listeners worked just fine for populating my spinner from my Firebase real time database but it's not as effective as using firebaseUI.
the documentation covers only recyclerview and listview, but I wanna use it for a spinner.
Query query = FirebaseDatabase.getInstance().getReference("Labs");
FirebaseListOptions<Labs> options = new FirebaseListOptions.Builder<Labs>().setQuery(query, Labs.class).build();
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(options) {
@Override
protected void populateView(@NonNull View v, @NonNull Labs model, int position) {
}
};
spinner.setAdapter(firebaseListAdapter);
I just don't know how to bind my model object with the view here.
java
android xml firebase-realtime-database firebaseui edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
|
show 4 more comments
Using childevent listeners worked just fine for populating my spinner from my Firebase real time database but it's not as effective as using firebaseUI.
the documentation covers only recyclerview and listview, but I wanna use it for a spinner.
Query query = FirebaseDatabase.getInstance().getReference("Labs");
FirebaseListOptions<Labs> options = new FirebaseListOptions.Builder<Labs>().setQuery(query, Labs.class).build();
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(options) {
@Override
protected void populateView(@NonNull View v, @NonNull Labs model, int position) {
}
};
spinner.setAdapter(firebaseListAdapter);
I just don't know how to bind my model object with the view here.
java
android xml firebase-realtime-database firebaseui edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
What is happening when you are using this code? You don't have any code in yourpopulateViewmethod. Have you also started listening for changes?
– Alex Mamo
Nov 22 '18 at 11:55
@AlexMamo yeah, that's where my problem is. I've just been doing trial and error with the populateview method there, don't know how to bind it with my model class "Labs"
– Jude Bobinihi
Nov 22 '18 at 12:06
What is the error?
– Alex Mamo
Nov 22 '18 at 12:10
@AlexMamo I tried arraylist.model.getLabname(); no compile errors but app crashes on start of that activity
– Jude Bobinihi
Nov 22 '18 at 14:00
If the app crashes, there is a stack trace. Please look that up on logcat, and add it to your question.
– Alex Mamo
Nov 22 '18 at 14:03
|
show 4 more comments
Using childevent listeners worked just fine for populating my spinner from my Firebase real time database but it's not as effective as using firebaseUI.
the documentation covers only recyclerview and listview, but I wanna use it for a spinner.
Query query = FirebaseDatabase.getInstance().getReference("Labs");
FirebaseListOptions<Labs> options = new FirebaseListOptions.Builder<Labs>().setQuery(query, Labs.class).build();
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(options) {
@Override
protected void populateView(@NonNull View v, @NonNull Labs model, int position) {
}
};
spinner.setAdapter(firebaseListAdapter);
I just don't know how to bind my model object with the view here.
java
android xml firebase-realtime-database firebaseui edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
Using childevent listeners worked just fine for populating my spinner from my Firebase real time database but it's not as effective as using firebaseUI.
the documentation covers only recyclerview and listview, but I wanna use it for a spinner.
Query query = FirebaseDatabase.getInstance().getReference("Labs");
FirebaseListOptions<Labs> options = new FirebaseListOptions.Builder<Labs>().setQuery(query, Labs.class).build();
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(options) {
@Override
protected void populateView(@NonNull View v, @NonNull Labs model, int position) {
}
};
spinner.setAdapter(firebaseListAdapter);
I just don't know how to bind my model object with the view here.
java
android xml firebase-realtime-database firebaseui java
android xml firebase-realtime-database firebaseui edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
edited Nov 22 '18 at 13:30
Aniruddh Parihar
2,19911027
2,19911027
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
asked Nov 22 '18 at 10:51
Jude BobinihiJude Bobinihi
187
187
What is happening when you are using this code? You don't have any code in yourpopulateViewmethod. Have you also started listening for changes?
– Alex Mamo
Nov 22 '18 at 11:55
@AlexMamo yeah, that's where my problem is. I've just been doing trial and error with the populateview method there, don't know how to bind it with my model class "Labs"
– Jude Bobinihi
Nov 22 '18 at 12:06
What is the error?
– Alex Mamo
Nov 22 '18 at 12:10
@AlexMamo I tried arraylist.model.getLabname(); no compile errors but app crashes on start of that activity
– Jude Bobinihi
Nov 22 '18 at 14:00
If the app crashes, there is a stack trace. Please look that up on logcat, and add it to your question.
– Alex Mamo
Nov 22 '18 at 14:03
|
show 4 more comments
What is happening when you are using this code? You don't have any code in yourpopulateViewmethod. Have you also started listening for changes?
– Alex Mamo
Nov 22 '18 at 11:55
@AlexMamo yeah, that's where my problem is. I've just been doing trial and error with the populateview method there, don't know how to bind it with my model class "Labs"
– Jude Bobinihi
Nov 22 '18 at 12:06
What is the error?
– Alex Mamo
Nov 22 '18 at 12:10
@AlexMamo I tried arraylist.model.getLabname(); no compile errors but app crashes on start of that activity
– Jude Bobinihi
Nov 22 '18 at 14:00
If the app crashes, there is a stack trace. Please look that up on logcat, and add it to your question.
– Alex Mamo
Nov 22 '18 at 14:03
What is happening when you are using this code? You don't have any code in your
populateView method. Have you also started listening for changes?– Alex Mamo
Nov 22 '18 at 11:55
What is happening when you are using this code? You don't have any code in your
populateView method. Have you also started listening for changes?– Alex Mamo
Nov 22 '18 at 11:55
@AlexMamo yeah, that's where my problem is. I've just been doing trial and error with the populateview method there, don't know how to bind it with my model class "Labs"
– Jude Bobinihi
Nov 22 '18 at 12:06
@AlexMamo yeah, that's where my problem is. I've just been doing trial and error with the populateview method there, don't know how to bind it with my model class "Labs"
– Jude Bobinihi
Nov 22 '18 at 12:06
What is the error?
– Alex Mamo
Nov 22 '18 at 12:10
What is the error?
– Alex Mamo
Nov 22 '18 at 12:10
@AlexMamo I tried arraylist.model.getLabname(); no compile errors but app crashes on start of that activity
– Jude Bobinihi
Nov 22 '18 at 14:00
@AlexMamo I tried arraylist.model.getLabname(); no compile errors but app crashes on start of that activity
– Jude Bobinihi
Nov 22 '18 at 14:00
If the app crashes, there is a stack trace. Please look that up on logcat, and add it to your question.
– Alex Mamo
Nov 22 '18 at 14:03
If the app crashes, there is a stack trace. Please look that up on logcat, and add it to your question.
– Alex Mamo
Nov 22 '18 at 14:03
|
show 4 more comments
2 Answers
2
active
oldest
votes
There are two problems in your code. First, you are getting the following error:
layout cannot be null
Because you aren't assigning any layout in your populateView() method. In your code, this method is empty. So you should create a custom layout that can contain a TeexView for each element will help you solve this problem.
The second issue is that you are using FirebaseListAdapter but don't listen for changes anywhere. To solve this, please use the following line of code in your onStart() method:
firebaseListAdapter.startListening();
Don't also forget to remove it once is not needed by adding the following lines of code in your onStop() method:
if(firebaseListAdapter != null) {
firebaseListAdapter.stopListening();
}
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
add a comment |
You would have two options:
one is just initialize your ArrayAdapter by the list of data you got from query
ArrayAdapter<String> adapter;
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,querylistData);
spinner.setAdapter(adapter);
Second you can bind data to the textview like below:
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(this, Labs.class ,android.R.layout.simple_spinner_item, query) {
protected void populateView(View v,Lab model, int position)
{
((TextView)v.findViewById(android.R.id.text1)).setText(model.getName());
}
};
spinner.setAdapter(firebaseListAdapter);
answered Nov 22 '18 at 13:05
AmirAmir
161214
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
There are two problems in your code. First, you are getting the following error:
layout cannot be null
Because you aren't assigning any layout in your populateView() method. In your code, this method is empty. So you should create a custom layout that can contain a TeexView for each element will help you solve this problem.
The second issue is that you are using FirebaseListAdapter but don't listen for changes anywhere. To solve this, please use the following line of code in your onStart() method:
firebaseListAdapter.startListening();
Don't also forget to remove it once is not needed by adding the following lines of code in your onStop() method:
if(firebaseListAdapter != null) {
firebaseListAdapter.stopListening();
}
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
add a comment |
There are two problems in your code. First, you are getting the following error:
layout cannot be null
Because you aren't assigning any layout in your populateView() method. In your code, this method is empty. So you should create a custom layout that can contain a TeexView for each element will help you solve this problem.
The second issue is that you are using FirebaseListAdapter but don't listen for changes anywhere. To solve this, please use the following line of code in your onStart() method:
firebaseListAdapter.startListening();
Don't also forget to remove it once is not needed by adding the following lines of code in your onStop() method:
if(firebaseListAdapter != null) {
firebaseListAdapter.stopListening();
}
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
add a comment |
There are two problems in your code. First, you are getting the following error:
layout cannot be null
Because you aren't assigning any layout in your populateView() method. In your code, this method is empty. So you should create a custom layout that can contain a TeexView for each element will help you solve this problem.
The second issue is that you are using FirebaseListAdapter but don't listen for changes anywhere. To solve this, please use the following line of code in your onStart() method:
firebaseListAdapter.startListening();
Don't also forget to remove it once is not needed by adding the following lines of code in your onStop() method:
if(firebaseListAdapter != null) {
firebaseListAdapter.stopListening();
}
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
There are two problems in your code. First, you are getting the following error:
layout cannot be null
Because you aren't assigning any layout in your populateView() method. In your code, this method is empty. So you should create a custom layout that can contain a TeexView for each element will help you solve this problem.
The second issue is that you are using FirebaseListAdapter but don't listen for changes anywhere. To solve this, please use the following line of code in your onStart() method:
firebaseListAdapter.startListening();
Don't also forget to remove it once is not needed by adding the following lines of code in your onStop() method:
if(firebaseListAdapter != null) {
firebaseListAdapter.stopListening();
}
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
edited Nov 23 '18 at 17:55
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
answered Nov 23 '18 at 8:50
Alex MamoAlex Mamo
44.6k82862
44.6k82862
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
add a comment |
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
Good to hear that it worked :) In this case, please consider accepting my answer by clicking the checkmark (✔️) on the left side under the vote arrows. Should change the color in green. I'd appreciate it. Thanks!
– Alex Mamo
Nov 23 '18 at 8:51
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
although, that layout didn't work. I had to create a layout with Textviews for each database element I wanted.
– Jude Bobinihi
Nov 23 '18 at 17:46
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
Just edited my answer. Cheers!
– Alex Mamo
Nov 23 '18 at 17:55
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
cheers, please help me upvote my initial question too
– Jude Bobinihi
Nov 23 '18 at 18:09
add a comment |
You would have two options:
one is just initialize your ArrayAdapter by the list of data you got from query
ArrayAdapter<String> adapter;
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,querylistData);
spinner.setAdapter(adapter);
Second you can bind data to the textview like below:
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(this, Labs.class ,android.R.layout.simple_spinner_item, query) {
protected void populateView(View v,Lab model, int position)
{
((TextView)v.findViewById(android.R.id.text1)).setText(model.getName());
}
};
spinner.setAdapter(firebaseListAdapter);
answered Nov 22 '18 at 13:05
AmirAmir
161214
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
add a comment |
You would have two options:
one is just initialize your ArrayAdapter by the list of data you got from query
ArrayAdapter<String> adapter;
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,querylistData);
spinner.setAdapter(adapter);
Second you can bind data to the textview like below:
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(this, Labs.class ,android.R.layout.simple_spinner_item, query) {
protected void populateView(View v,Lab model, int position)
{
((TextView)v.findViewById(android.R.id.text1)).setText(model.getName());
}
};
spinner.setAdapter(firebaseListAdapter);
answered Nov 22 '18 at 13:05
AmirAmir
161214
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
add a comment |
You would have two options:
one is just initialize your ArrayAdapter by the list of data you got from query
ArrayAdapter<String> adapter;
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,querylistData);
spinner.setAdapter(adapter);
Second you can bind data to the textview like below:
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(this, Labs.class ,android.R.layout.simple_spinner_item, query) {
protected void populateView(View v,Lab model, int position)
{
((TextView)v.findViewById(android.R.id.text1)).setText(model.getName());
}
};
spinner.setAdapter(firebaseListAdapter);
answered Nov 22 '18 at 13:05
AmirAmir
161214
You would have two options:
one is just initialize your ArrayAdapter by the list of data you got from query
ArrayAdapter<String> adapter;
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,querylistData);
spinner.setAdapter(adapter);
Second you can bind data to the textview like below:
FirebaseListAdapter<Labs> firebaseListAdapter = new FirebaseListAdapter<Labs>(this, Labs.class ,android.R.layout.simple_spinner_item, query) {
protected void populateView(View v,Lab model, int position)
{
((TextView)v.findViewById(android.R.id.text1)).setText(model.getName());
}
};
spinner.setAdapter(firebaseListAdapter);
answered Nov 22 '18 at 13:05
AmirAmir
161214
edited Nov 22 '18 at 16:03
answered Nov 22 '18 at 13:05
AmirAmir
161214
answered Nov 22 '18 at 13:05
AmirAmir
161214
answered Nov 22 '18 at 13:05
AmirAmir
161214
161214
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
add a comment |
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
the second option generated a no layout error, i fixed it, but then the spinner doesn't show any data now, I don't quite understand the "querylistdata" in the first
– Jude Bobinihi
Nov 22 '18 at 15:40
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
I mean by querlistdata is the list of data you are getting from Firebasedatabase and you want to display in spinner. For second option, I have already edited the code above and you just follow the code and just try this code. hope it show spinner with data
– Amir
Nov 22 '18 at 16:07
add a comment |
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What is happening when you are using this code? You don't have any code in your
populateViewmethod. Have you also started listening for changes?– Alex Mamo
Nov 22 '18 at 11:55
@AlexMamo yeah, that's where my problem is. I've just been doing trial and error with the populateview method there, don't know how to bind it with my model class "Labs"
– Jude Bobinihi
Nov 22 '18 at 12:06
What is the error?
– Alex Mamo
Nov 22 '18 at 12:10
@AlexMamo I tried arraylist.model.getLabname(); no compile errors but app crashes on start of that activity
– Jude Bobinihi
Nov 22 '18 at 14:00
If the app crashes, there is a stack trace. Please look that up on logcat, and add it to your question.
– Alex Mamo
Nov 22 '18 at 14:03