RecyclerView.ChildDrawingOrderCallback

interface RecyclerView.ChildDrawingOrderCallback


A callback interface that can be used to alter the drawing order of RecyclerView children.

It works using the getChildDrawingOrder method, so any case that applies to that method also applies to this callback. For example, changing the drawing order of two views will not have any effect if their elevation values are different since elevation overrides the result of this callback.

Summary

Public functions

Int
onGetChildDrawingOrder(childCount: Int, i: Int)

Returns the index of the child to draw for this iteration.

Public functions

onGetChildDrawingOrder

Added in 1.0.0
fun onGetChildDrawingOrder(childCount: Int, i: Int): Int

Returns the index of the child to draw for this iteration. Override this if you want to change the drawing order of children. By default, it returns i.

Parameters
childCount: Int

The total number of children.

i: Int

The current iteration.

Returns
Int

The index of the child to draw this iteration.