sample.sbt

SettingKey[Attributed[File] => Boolean]("filter-fn") := { e: Attributed[File] =>
  val name = e.data.getName
  name.startsWith("android-support")        ||
  name.startsWith("support-v4-r18")         ||
  name.startsWith("xmlParserAPIs")          ||
  name.startsWith("android-4")              ||
  name.startsWith("accessenabler-1.6")      ||
  name.startsWith("adobe-adms-measurement") ||
  name.startsWith("xpp3")
}

// these two settings remove the junk that our maven dependencies pull in
dependencyClasspath in Android <<= (dependencyClasspath in Android,
    SettingKey[Attributed[File] => Boolean]("filter-fn")) map { (dcp, filterFn) =>
  dcp.filterNot(filterFn)
}

unmanagedJars in Android <<= (unmanagedJars in Android,
    SettingKey[Attributed[File] => Boolean]("filter-fn")) map { (dcp, filterFn) =>
  dcp.filterNot(filterFn)
}