Toggle auto update in adapter

[sandeshlasnapure]

Is there any way to disable autoupdate?
In my case I have a ViewPager wich has 5 tabs attached to it, and I am using same adapter for all with different query params.
Now I want to disable the autoupdate if fragment is not visible.

Thanks.

[nhachicha]

are you using RealmBaseAdapter or RealmRecyclerViewAdapter ?

RealmBaseAdapter register internally a listener to notify the data set change.

with RealmRecyclerViewAdapter you can set the boolean on false when calling the constructor to disable the internal listener (autoUpdate)

[sandeshlasnapure]

I am using RealmRecyclerViewAdapter. While calling constructor I am setting update param true, but if fragment is no longer visible to user I don't want to update my list.

[sandeshlasnapure]

or should I use RealmBaseAdapter instead?

[nhachicha]

If you're using the same RealmRecyclerViewAdapter then I suppose you're calling updateData to use the RealmResults query that correspond to this View/Fragment. The call to updateData will remove the previous listener, so only the current Fragment/View using the adapter will receives notifications. Same with RealmBaseAdapter.

That being said, be careful with the ViewPager, as it needs to build the offscreen previous/after which will end up trying to reuse the same RealmRecyclerViewAdapter for 3 different Fragments, which is not what you want I guess, since the previous, current and next screen will all use the same data.

Why not use a dedicated RealmRecyclerViewAdapter/ RealmBaseAdapter per page, then limit the number of offscreen pages the ViewPager tries to build using setOffscreenPageLimit?

[sandeshlasnapure]

I am passing the realm result in constructor.
I think creating dedicated adapter would be fine as of now.
But again will it leads to performance issue?

[sandeshlasnapure]

I have implemented dedicated adapters and no noticeable performance issue, will go with it.
Thanks.