I have a map in my app, and I want to click a random place on the map and
- Get the longitude and latitude of the location and use that information in my app
- Use that longitude and latitude to get either the address of a location that is nearby
- Find things that are near that location
To find out what’s nearby you can use google’s reverse GeoCoding -> Reverse GeoCoding
And to convert coordinates to pixels and vice versa
take a look at projections and GeoPoints
Here’s an example