Android: How do I set the zoom level of map view to 1 km radius around my current location?

Question

I want to set the map view zoomed to 1km radius but cant figure out how?

The doc says that the zoom level 1 will map earths equator to 256 pixels. So how do I calcul

Answer 1

Google maps seems to work closely to miles/pixel. At zoom=13, 1 mile= 100 pixels. 2 miles = 200 pixels. Each zoom leven increases or decreases by a factor of 2. Therefore, at Zoom 14, 1 mile = 200 pixels and at zoom 12, 1 mile = 50 pixels.