How to increase the size of a current focused item on a RecyclerView? [closed]

Question

I'm trying to make an horizontal list with a RecyclerView, that when I put the focus on an item, increase the size of this. I want to make this effect:

Do you have any ideas to accomplish this?

Answer 1

I'm imagining something like this:

1. Create the horizontal RV
2. When binding the ViewHolder, attach a FocusChangeListener to the root view of the item
3. When the item gains focus, scale it to make it slightly bigger; when the focus is lost, revert the animation.

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static class ViewHolder extends RecyclerView.ViewHolder {    public ViewHolder(View root) {     // bind views     // ...      // bind focus listener     root.setOnFocusChangeListener(new View.OnFocusChangeListener() {       @Override         public void onFocusChange(View v, boolean hasFocus) {           if (hasFocus) {             // run scale animation and make it bigger           } else {             // run scale animation and make it smaller           }         }      });   } }