ListView Recycle

Question

Regarding the lisview recycle, I'm reusing the views with viewholder, but now I need to add a number of Views(ImageViews and textviews) not clearcut( the number of views isnt always the same).

How can I add these items, without create a new view on every getView() method and without affecting the performance of the list?

Can you share the code of your adapter ? – 2Dee Jul 01 '14 at 14:27 — 2Dee, Jul 01 '14 at 14:27

score 0 · Answer 1 · edited May 23 '17 at 10:32

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No way to create different layouts without overriding getView(). You can reuse as much view types as you want, read this answer.

If you have perfomance issue, try a new widjet RecyclerView, available at Support-V7 library.

edited May 23 '17 at 10:32

Community

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answered Jul 01 '14 at 14:43

dimetil

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score 0 · Answer 2 · answered Jul 01 '14 at 14:54

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my strategy to implement what you described without creating new view every time getView() is called, is:

let's say you have at the most 10 image views. your view xml will contain 10 ImageView items, but when getView() been called - you'll set the visibility of the un-needed elements to View.GONE, and the only ones you needed to View.Visible.

working great for me, and that's the only why not to create new view...

answered Jul 01 '14 at 14:54

Tal Kanel

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So many views in xml and viewholder will not decrease the scroll performance? – Frederico Silva Jul 01 '14 at 15:07
from my experience, as long as you play with this amount of views visibility (and not much more) , the UI thread (and scroll speed) will not be affected. besides that - you really not have better solution. as @dimetil said - using RecyclerView can be better to use this case (with my approch), because it have property - mRecyclerView.setHasFixedSize(false) , which adressed exactly this issue of changing dynmically a lot the view params.. – Tal Kanel Jul 01 '14 at 15:13

ListView Recycle

2 Answers2