To build MAF formatting-capable applications, add the com/sap/mobile/maf/tools/android/MAFFormatters (mafformatters.jar) library, and the mafformatters-res android library project file, to your project.
Also add sap/mobile/maf/tools/android/MAFLogger (maflogger.jar) to your Android project, as MAFFormatters rely on this logging facility.