Android APK File

An Android application is packaged into an apk file, which is basically a zip file and can be opened using WinZip or a similar program. All applications are signed with a private key. This process sounds hard enough, but thankfully Android Studio takes care of everything. When you run an Android application from inside Android Studio, an apk file will be built and signed automatically. The file will be named appdebug.apk and stored in the app/build/outputs/apk directory under the project directory. Android Studio also notifies the emulator or the target device of the location so that the apk file can be foundĀ and executed. The automatically generated apk file also contains debug information to enable running it in debug mode.

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