TileProvider

Interface for providing tiles to a TileOverlay.

Implementations can provide tiles from various sources:

• URLs (via UrlTileProvider)

• Local storage

• Dynamically generated content

• Custom tile rendering

Tile coordinates use the Web Mercator projection (EPSG:3857) with the XYZ tile scheme:

• x: Tile column (0 to 2^zoom - 1, west to east)

• y: Tile row (0 to 2^zoom - 1, north to south)

• zoom: Zoom level (0 = world, 19 = building level)

The map calls getTile on a background thread, so it may block, e.g. to read a file or render the tile. Implement it from Kotlin or Java:

val provider = TileProvider { x, y, zoom ->
    if (zoom < 10) TileProvider.NO_TILE else Tile(256, 256, renderTile(x, y, zoom))
}

TileProvider provider = (x, y, zoom) ->
    zoom < 10 ? TileProvider.NO_TILE : new Tile(256, 256, renderTile(x, y, zoom));

See also

Inheritors