Check in will be invisible only if inside location or else not . (Done)
Service and location tracking notification is only active when the user is within 400 metres of the precise location . Service , notification and the check out button will not work when the user is outside 400 metres to the precise location . (Done)
On pressing the Check in button it disappears and reappears when the check out button is pressed .
On pressing the back button on the login activity the app exits .
Service starting only when the Check in button is pressed .
Check out button cannot be pressed outside range .
