Which library to choose to work with OSM android?

Question

MySQL

You need to be able to get information about the buildings that the user has clicked on.
When you click on the building, you need to mark all its corners and, relative to any corner, allow you to drag the ruler to change the distance from the corner to the desired place.
Something like this:

Please tell me which libraries and map format can be used to solve this problem for android. (never worked with maps)

Answer 1

Important.
It is also important to understand that if columns with index _1, _2, etc. appeared, then something went wrong in the design Event
table - id - name - start_date - status - comment Team table - id - name Stream table - id - event_id - link - title Event_team table - event_id - team_id Linking events to teams via many-to-many event_team table Linking many-to- one events and events via stream.event_id

Answer 2

I would do so.
in the matches table - information about the match (id, created_at, start_at).
in the commands table - info about the command (id, name).
in the adjacent table commands_matches - id, commands_id, matches_id.
in the comments table - id, matches_id, comment, user_id (if there is a registration or something like that).
in the media table - id, matches_id, url.

Answer 3

https://docs.mapbox.com/android/maps/overview/

Answer 4

MapBox is the best in terms of stability. Tested by experience.

Answer 5

With support for vector tiles, and getting information from them, then there will be such information. Otherwise, you need to install / search for an additional thread wms provider, which will return information about the layer.