Specify the country to be searched in Android GeoCoder?

I can specify a square where the Geocoder shall search in, but I found no way to specify a certain country. Unfortunately, my country isn't quadrangular ;( What should I do? Use another reverse geocoding service?

I'd want to build a search box where the user can search for a city (with auto suggestion). On every keystroke t开发者_如何学编程he current search query is going to be delivered to the Geocoder.

If it's any help, the official Geocoding API can do regional biasing. It would require you to use their web API instead of the Android API.