Android Custom Map Source

I 开发者_运维百科need to create a Map View in an Android project where I get custom map tile PNG's from a server. Does anybody know a hassle-less-licensed API to implement such a feature?

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I've used the OsmDroid open source map library (see OsmDroid website) - it loads map tiles from a variety of sources so should be configurable to point to a custom tile server.

Hope that helps?