How to get tiles along route?

[blakfast]

Hi. I use GeojsonTileSource for getting tiles from server. I want to get all need tiles along my route. How can I do it?

[devemux86]

Check the methods latitudeToTileY and longitudeToTileX of MercatorProjection.
You need coordinates (from route geometry) and zoom level to retrieve tile numbers.

[blakfast]

Are there some instruments for managing pre-cashing tiles? These methods just provides a knowledge of tile's number. But I need all process of work with tiles. I just set tile source and it's works. How can I download, parse and save choosed by myself tiles like it does the library.

[devemux86]

You can check the code to see how the tiles are downloaded.
Map libraries usually just get the tiles of the visible map view.

[devemux86]

Better use Mapsforge offline maps and then the map is always available in all locations.
(check the samples for examples)