ListAdapter submitList() - How to scroll to beginning
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I have an issue with my REcyclerView and ListAdapter.
Trough an API, I receive items in a ascending order from older to newer.
My list is then refreshed by calling the submitList(items) command.
However, since everything is asynchronous, after receiving the first item, the RecyclerView remains on the position of the first item received and showed.
Since in the ListAdapter class there is no callback when the submitList() completed, I cannot find a way to scroll after the updates to one of the new items that has been added.
Is there a way to intercept when ListAdapter has been updated ?
android android-recyclerview listadapter asked Nov 11 at 12:24
gbaccetta
2,158820
add a comment |
up vote
0
down vote
favorite
I have an issue with my REcyclerView and ListAdapter.
Trough an API, I receive items in a ascending order from older to newer.
My list is then refreshed by calling the submitList(items) command.
However, since everything is asynchronous, after receiving the first item, the RecyclerView remains on the position of the first item received and showed.
Since in the ListAdapter class there is no callback when the submitList() completed, I cannot find a way to scroll after the updates to one of the new items that has been added.
Is there a way to intercept when ListAdapter has been updated ?
android android-recyclerview listadapter asked Nov 11 at 12:24
gbaccetta
2,158820
1
Add code. Should you be using ListAdapter for RecyclerView? Arent ListAdapters used for ListViews? Maybe use the recyclerview adapter? developer.android.com/reference/android/support/v7/widget/… Thta thing definitely has notifyDataSetChanged() , register a AdapterDataObserver and call the function to scroll to the end.
– Nephilim
Nov 11 at 14:06
Hello, I'm speaking about the new RecyclerView.ListAdapter, not the old one for ListView. Anyway the solution was indeed to to use an AdapterDataObserver! so thank you very much. If you post it as an answer I can accept it.
– gbaccetta
Nov 12 at 16:37
Hey, I don't think my comment is eloquent or good enough to be an answer in itself, if you don't mind, add some of your fixed code, some explanations what worked and post it as the answer :) @gbaccetta
– Nephilim
Nov 14 at 15:00
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have an issue with my REcyclerView and ListAdapter.
Trough an API, I receive items in a ascending order from older to newer.
My list is then refreshed by calling the submitList(items) command.
However, since everything is asynchronous, after receiving the first item, the RecyclerView remains on the position of the first item received and showed.
Since in the ListAdapter class there is no callback when the submitList() completed, I cannot find a way to scroll after the updates to one of the new items that has been added.
Is there a way to intercept when ListAdapter has been updated ?
android android-recyclerview listadapter asked Nov 11 at 12:24
gbaccetta
2,158820
I have an issue with my REcyclerView and ListAdapter.
Trough an API, I receive items in a ascending order from older to newer.
My list is then refreshed by calling the submitList(items) command.
However, since everything is asynchronous, after receiving the first item, the RecyclerView remains on the position of the first item received and showed.
Since in the ListAdapter class there is no callback when the submitList() completed, I cannot find a way to scroll after the updates to one of the new items that has been added.
Is there a way to intercept when ListAdapter has been updated ?
android android-recyclerview listadapter android android-recyclerview listadapter asked Nov 11 at 12:24
gbaccetta
2,158820
asked Nov 11 at 12:24
gbaccetta
2,158820
asked Nov 11 at 12:24
gbaccetta
2,158820
asked Nov 11 at 12:24
gbaccetta
2,158820
asked Nov 11 at 12:24
gbaccetta
2,158820
2,158820
1
Add code. Should you be using ListAdapter for RecyclerView? Arent ListAdapters used for ListViews? Maybe use the recyclerview adapter? developer.android.com/reference/android/support/v7/widget/… Thta thing definitely has notifyDataSetChanged() , register a AdapterDataObserver and call the function to scroll to the end.
– Nephilim
Nov 11 at 14:06
Hello, I'm speaking about the new RecyclerView.ListAdapter, not the old one for ListView. Anyway the solution was indeed to to use an AdapterDataObserver! so thank you very much. If you post it as an answer I can accept it.
– gbaccetta
Nov 12 at 16:37
Hey, I don't think my comment is eloquent or good enough to be an answer in itself, if you don't mind, add some of your fixed code, some explanations what worked and post it as the answer :) @gbaccetta
– Nephilim
Nov 14 at 15:00
add a comment |
1
Add code. Should you be using ListAdapter for RecyclerView? Arent ListAdapters used for ListViews? Maybe use the recyclerview adapter? developer.android.com/reference/android/support/v7/widget/… Thta thing definitely has notifyDataSetChanged() , register a AdapterDataObserver and call the function to scroll to the end.
– Nephilim
Nov 11 at 14:06
Hello, I'm speaking about the new RecyclerView.ListAdapter, not the old one for ListView. Anyway the solution was indeed to to use an AdapterDataObserver! so thank you very much. If you post it as an answer I can accept it.
– gbaccetta
Nov 12 at 16:37
Hey, I don't think my comment is eloquent or good enough to be an answer in itself, if you don't mind, add some of your fixed code, some explanations what worked and post it as the answer :) @gbaccetta
– Nephilim
Nov 14 at 15:00
1
1
Add code. Should you be using ListAdapter for RecyclerView? Arent ListAdapters used for ListViews? Maybe use the recyclerview adapter? developer.android.com/reference/android/support/v7/widget/… Thta thing definitely has notifyDataSetChanged() , register a AdapterDataObserver and call the function to scroll to the end.
– Nephilim
Nov 11 at 14:06
Add code. Should you be using ListAdapter for RecyclerView? Arent ListAdapters used for ListViews? Maybe use the recyclerview adapter? developer.android.com/reference/android/support/v7/widget/… Thta thing definitely has notifyDataSetChanged() , register a AdapterDataObserver and call the function to scroll to the end.
– Nephilim
Nov 11 at 14:06
Hello, I'm speaking about the new RecyclerView.ListAdapter, not the old one for ListView. Anyway the solution was indeed to to use an AdapterDataObserver! so thank you very much. If you post it as an answer I can accept it.
– gbaccetta
Nov 12 at 16:37
Hello, I'm speaking about the new RecyclerView.ListAdapter, not the old one for ListView. Anyway the solution was indeed to to use an AdapterDataObserver! so thank you very much. If you post it as an answer I can accept it.
– gbaccetta
Nov 12 at 16:37
Hey, I don't think my comment is eloquent or good enough to be an answer in itself, if you don't mind, add some of your fixed code, some explanations what worked and post it as the answer :) @gbaccetta
– Nephilim
Nov 14 at 15:00
Hey, I don't think my comment is eloquent or good enough to be an answer in itself, if you don't mind, add some of your fixed code, some explanations what worked and post it as the answer :) @gbaccetta
– Nephilim
Nov 14 at 15:00
add a comment |
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Add code. Should you be using ListAdapter for RecyclerView? Arent ListAdapters used for ListViews? Maybe use the recyclerview adapter? developer.android.com/reference/android/support/v7/widget/… Thta thing definitely has notifyDataSetChanged() , register a AdapterDataObserver and call the function to scroll to the end.
– Nephilim
Nov 11 at 14:06
Hello, I'm speaking about the new RecyclerView.ListAdapter, not the old one for ListView. Anyway the solution was indeed to to use an AdapterDataObserver! so thank you very much. If you post it as an answer I can accept it.
– gbaccetta
Nov 12 at 16:37
Hey, I don't think my comment is eloquent or good enough to be an answer in itself, if you don't mind, add some of your fixed code, some explanations what worked and post it as the answer :) @gbaccetta
– Nephilim
Nov 14 at 15:00