Then you disconnect from the game there is a small rotating scanner in the top middle. But then you connect or reconnect there is a lack of such indication. You may look around if you are on the map but not being able to push anything. You cant do anything if you are in a menu, but to spam the exit till it works or leave the phone a while. There is no way to tell then you are fully connected. A fix would be to add a black tone or fade the hole screen then the game is in this state.