Compute vertical scroll range and offset for recycler view with different view types

Asked Feb 09 '18 at 11:56

Active Feb 09 '18 at 12:41

Viewed 967 times

My question if pretty clear. I'm trying to add fast scroll for recycler view with different view types and for that I need to calculate vertical scroll range and offset. I have 6 view types with height that depend on content. I'm using GridLayoutManager and its implementation of the methods:

computeVerticalScrollRange
computeVerticalScrollOffset

are not applicable for rv with different view types.

Could someone help me with this please?

edited Feb 09 '18 at 12:41

asked Feb 09 '18 at 11:56

Olexii Muraviov

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Can't both view types has the same size? – Marcos Vasconcelos Feb 09 '18 at 12:30
@MarcosVasconcelos I have 6 view types, all of them have different height that depends on content – Olexii Muraviov Feb 09 '18 at 12:39
Why you say that those methods are not applicable for different viewtypes? – Marcos Vasconcelos Feb 09 '18 at 12:42
@MarcosVasconcelos It gives approximate scroll range based on items count and their height and when different view type comes up on the screen it changes its value. – Olexii Muraviov Feb 09 '18 at 12:44
can't you override those and calculate yourself? – Marcos Vasconcelos Feb 09 '18 at 12:48
@MarcosVasconcelos yeah, this is what I want to do. but I can't find solution for doing this for now. – Olexii Muraviov Feb 09 '18 at 13:46
Take a look into the GridLayoutManager to see how it wraps columns, this can be a start – Marcos Vasconcelos Feb 09 '18 at 14:57

Compute vertical scroll range and offset for recycler view with different view types

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