Reconnecting takes a very long time on Android after minimizing

[pantia]

On Android if you minimize the app and wait, then reopen it, sometimes it takes up to a minute for the connection to be restored.

Channel.Builder
  .usePlaintext()
  .withKeepAliveConfig(
    KeepAliveConfig.Enabled(
      time = 15.seconds,
      timeout = 5.seconds,
      withoutCalls = true
    )
  ).build()

It seems that ManagedChannel has a resetConnectBackoff method to deal with this; maybe it should be made available in Channel