I have 5+ yrs experience as android developer. During my professional career till today I have worked on different applications which includes creating custom layouts, listview, Google Map, GCM, VOIP application, Social network integration, In App purchase, knowledge about apk expansion, SQLite, proguard obfuscation, XML parsing, JSON parsing(with GSON & JSON), creating app architecture etc. Also experienced about building open source in linux, as well as can work with NDK.
I will give you best solution to your work.