What files are included in the APK file

Question

I have a lot of unused images in my Android app. These images are placed in a separate folder in the root directory of the project. They are not used anywhere in the project, but I need to store them.

I'm worried that these unused images will be included in the apk file? Since there are many, and the apk file size is increasing.

Answer 1

Files stored in the root directory (including custom subdirectories) are not included in the APK. A very common practice is to have your own files necessary for the project at the root of the project. For example, a source license file, a to-do list, a directory with high-resolution images from which you create distributed images, etc.

Android uses these subdirectories with a special meaning:

• CSI /
• Res /
• assets /
• LIES /
• GEN /
• bin /

Using a different subdirectory name than those Android will ignore your files.

Answer 2

Confirm yourself: create apk and change the extension to zip and extract it. You can use apk optimizer like progaurd and more.

Answer 3

addon to Darshan-JosiaBarber's wonderful answer

With Android-Studio-0.5.8, gradle -1.11 and android-tools.0.9. + you may also have a folder

• resources

for files to be copied relative to android apk root.

Example:

• The project file res / some / dir / file.txt will be copied to apk / res / some / dir / file.txt
• the assets of the project file /some/dir/file.txt will be copied to apk / assets / some / dir / file.txt
• project file resources /some/dir/file.txt will be copied to apk / some / dir / file.txt

This resources folder is needed if you want to include *.properties files used by cross-platform libs such as ical4j.