Apple's Podcast app has an interesting feature available when VoiceOver is running.
When a user double taps and holds the scrubber, dragging left or right adjusts the scrubber position .
How is this done? I've made my attempts at allowing direct interaction with the scrubber via UIAccessibilityTraitAllowsDirectInteraction , but you lose the ability to drag and scrub to a position if your finger goes outside of the scrubber's bounds.
I found the solution to not set it to UIAccessibilityTraitAllowsDirectInteraction, but UIAccessibilityTraitAdjustable. This also allows an accessibility user to swipe up and down to adjust the scrubber.