Registers a callback that's fired when a map tile has been loaded.
Returns an ID which can be passed to unlisten() to unregister the callback.
| Usage | Returns |
|---|---|
Map.onTileLoaded(callback) | String |
| Argument | Type | Details |
|---|---|---|
this: ui.map | ui.Map | The ui.Map instance. |
callback | Function | Called with an array of per layer values. Each value is the fraction of tiles still pending: a value of 0 means there are no more tiles to load for the layer. |