IssueTracker

I believe I'm having a related problem on certain devices. I set the systemBarBehavior as seen in line below:

WindowInsetsControllerCompat(window, main_container).systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE

Although I'm setting the system bar behavior to BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE, it seems to be behaving as BEHAVIOR_SHOW_BARS_BY_TOUCH on some devices. After i hide the system UI (see fun below) then touch the screen the bottom system navigation bar appears (the status bar remains hidden). When i swipe down from the top, the system status bar does appear transparent and goes away after a few seconds but the bottom system nav bar remains and isn't transparent.

Bug appears on: Galaxy s9+ (android 10), Galaxy Note 10+ (android 10). Bug does not appear on: Google Pixel 3a (android 11), Google Pixel 3 (android 11). I haven't tested on any other devices besides Galaxy s6 but that phone has hardware buttons so it doesn't apply.

Here's my code to go into full screen mode:

// Hide the app action bar, system status bar and system navigation bar
private fun hideSystemUI() {
    supportActionBar?.hide()
    WindowCompat.setDecorFitsSystemWindows(window, false)
    WindowInsetsControllerCompat(window, main_container).let { controller ->
        controller.hide(WindowInsetsCompat.Type.statusBars() or WindowInsetsCompat.Type.navigationBars())
        controller.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
    }
}

Bug described above (where any touch on the screen reveals the bottom navigation bar) happens on Xiaomi Redmi Note 9S using Android 10 (MIUI 12) as well.