The example of how to animate tile overlay and decrease the flickers

swap_overlay.kt

private fun swapTiles() {
    if (overlay1 != null) {
        overlay2 = map.addTileOverlay(    
            TileOverlayOptions()
                .tileProvider(timedTileProvider)
                .fadeIn(false)
                .zIndex(zIndex)
        )
        removeOverlay(overlay1) {
            overlay1 = null
        }
    } else {
        overlay1 = map.addTileOverlay(
            TileOverlayOptions()
                .tileProvider(timedTileProvider)
                .fadeIn(false)
                .zIndex(zIndex)
        )
        removeOverlay(overlay2) {
            overlay2 = null
        }
    }
}