You can view it directly through the Device File Explorer of android studio; the files under the package name can be viewed. The files
under any package under dada/data/ can be viewed.
1. If the app corresponding to the package is a debug package, it can be viewed directly through android studio (the following commands are actually executed at the bottom layer);
adb shell
run-as com.test.a
2. If the app corresponding to the package is not a debug package, then it will prompt run-as: package not debuggable