CODEWITHSUNDEEP
androidandroid-recyclerview
S.P.
S.P.

Reputation: 2564

How to know focus element in recyclerview fullscreen

I've set a recyclerview that works fine. I want to know when some element have the focus in the screen. My recyclerview display every item to fullscreen. Is possible to know, in the viewholder or in some place, what's the item that have the focus?

My problem is that I have a countdown in every item. And I only want that the countdown start when the item has the focus.

Upvotes: 1

Views: 3064

Answers (2)

caketuzz
caketuzz

Reputation: 126

there is no object supposed to "have" the focus. If you want that feature, you need to implement it. For example, you can add a member hasFocus in your model class, then in your view holder, 

if (hasFocus) displayWithFocus();
else displayWithoutFocus();

Then you must define a view.OnItemClicekListener like this

onItemClicked(... View view, position p, ...){
    itemsList.elementAt(p).setHasFocus(true)
}

This way you can also define if you want one item or several items to get selected.

To get to know who "has" the focus (is selected), you must iterate through the items list (model side).

edit: focus could only be used for views traversal, or use for example with a keyboard ...

Upvotes: 0

Szymon Chaber
Szymon Chaber

Reputation: 2186

Try calling getFocusedChild():

View focusedView = (View) recyclerview.getFocusedChild();

Upvotes: 2

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