Expose fine-grained UI element visibility through 'PlayerView.ControllerVisibilityListener'

Media3 Version

1.0.0-beta03

Devices that reproduce the issue

BOXD6 (TV box) running Android 7.1.2

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Not tested

Reproduction steps

observed in app: ExoAirPlayer v3.x

Expected result

listener receives event notifications without any delay.. immediately after the controller is hidden

Actual result

approx. 3 second delay

When I migrated a project from ExoPlayer to Media3, I needed to change from the old PlayerView to the new PlayerView (aka: StyledPlayerView)

• initially, the code had called: PlayerView.setControllerVisibilityListener(PlayerControlView.VisibilityListener)

  • this listener didn't receive any event notifications (at all)

• when I updated the code to call: PlayerView.setControllerVisibilityListener(PlayerView.ControllerVisibilityListener)

  • this listener does receive all event notifications
  • when the visibility of the controller changes:
    • from GONE to VISIBLE, the listener receives an event notification immediately
    • from VISIBLE to GONE, the listener receives an event notification after a delay (approx. 3 seconds)

Media

N/A

Bug Report

• You will email the zip file produced by adb bugreport to dev.exoplayer@gmail.com after filing this issue.