Will load a new map style asynchronous from the specified URI.
URI can take the following forms:
Constants: load one of the bundled styles in Style.
mapbox://styles/<user>/<style>: loads the style from a Mapbox account. user is your username. style is the ID of your custom style created in Mapbox Studio.
http://... or https://...: loads the style over the Internet from any web server.
asset://...: loads the style from the APK assets directory. This is used to load a style bundled with your app.
file://...: loads the style from a file path. This is used to load a style from disk.
The OnMapLoadErrorListener callback
The OnStyleLoaded callback
The style URI