在设备上的Android应用程序内部创建APK文件？

Question

Can one create .APK file from set of files/folder inside Android Application? (for example, inside application like fdroid)

For example, I have uncompressed files of my apk file and I want to recreate/compress it again inside Android application.

Can I use apktool from inside Android Application? Or is there anything similar?

Answer 1

It is totally possible to build an APK on Android, but it won't be easy. Java supports the ZIP/JAR format natively, so you can assemble the unsigned APK that way. The only way I know to sign the APK on Android is the zipsigner library. The only maintained copy of that that I've seen is directly included in F-Droid: https://gitlab.com/fdroid/fdroidclient/tree/1.4/app/src/full/java/kellinwood

Answer 2

Apktool cannot run on Android devices. There are incompatibilities with SnakeYAML and Java7 (NIO) features.

I'm not aware of any other tool.