Building and Run process

Build

During the build process, your Android projects are compiled and
packaged into an .apk file, the container for your application
binary. It contains all of the information necessary to run your
application on a device or emulator, such as compiled .dex files (.class files converted to Dalvik byte code), a binary version of the Androidmanifest.xml file, compiled resources and uncompiled resource files for your application.