Setting z-order of the overlapping nodes at the same hierarchical level

[bruvzg]

There seems to be no way to explicitly specify z-order for the nodes.

With a node structure like this, where "ListBox" is popup and its bounding box overlaps button and its parent container. Android TalkBack explore by touch seems to randomly select button and overlapping list item.

• 1. "Root Containter"
  • 1.1. "ListBox"
    • 1.1.1. "ListBox Item 1"
    • 1.1.2. "ListBox Item 2"
  • 1.2. "Containter"
    • 1.2.1. "Button"

[mwcampbell]

I guess to fully address this problem, we should have the ability to not only override the z-order, but also add a flag to mark nodes as opaque, so the pop-up prevents any nodes behind it from being reached in the hit test.