You are writing a web app that will run in the Browser, Android, and iOS. Several map links need to be set up, some that take you to a map with a single location on it, others that open the map with directions from your current location.
//returns the platform: web, ios, android
function platformType() {}
function openBrowserMap(link) {}
function openAndroidMap(lat, lng) {}
function openIOSMap(link) {}
Directions
https://maps.apple.com/?q=DriveTime Dealership&daddr=${address},${city},${state}&dirflg=d&latLng=${lat},${lng}
Location
https://maps.apple.com/?q=${label} ${address}, ${city}, ${state}&latLng=${lat},${lng}
Links On iOS
Links opened on iOS need to be prefixed with maps:// instead of https://.
When the button is created, metadata can be attached. When the button is clicked, the metadata can be used to call the map API and open the correct map type.