Application Structure

Applications are packaged into a single file: APK.

APK Content

ETA-INF/MANIFEST.MF: Same use as in the JAR format.
- May have additional key/value pairs for Android-specific metadata.
META-INF/*: Other files (for example *.version) that are used to add more detail.
classes.dex: Compiled and bundled Android classes.
- APK may contain other dex files such as classes1.dex, classes2.dex…
*.properties: Configuration parameters for frameworks used by the app.
res/**: Static resources bundled so that they could be used at run-time by the app.
resources.arsc: A file of compiled resources that are bundled together
- similar to classes.dex but for non-executable objects.

Last updated 5 months ago