Fix the show stop in map

Summary:
More log to see the change in the logcat

Implement show stop in map

Fix crash

Test Plan: Build and enjoy

Reviewers: valerio.bozzolan

Reviewed By: valerio.bozzolan

Subscribers: valerio.bozzolan, Libre BusTO

Tags: Libre BusTO

Maniphest Tasks: T900

Differential Revision: https://gitpull.it/D66