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androidfileadb

Writing private files created by an android app

I want to overwrite private data files on Android. To read and pull files, I already have an answer.

adb pull data/data/com.myapplication.package/files/myfile.extension

But now, I tried to push the file back after home-made changes:

adb push myfile.extension data/data/com.myapplication.package/files/myfile.extension

I get a "Permission denied" error. I tried to login on the shell and then change the permissions:

adb shell
chmod 777 data/data/com.myapplication.package/files/myfile.extension

I got a Operation not permitted error. Any idea on how to overwrite the existing file on the tablet ?

Solution

  • Try this:

    adb shell
run-as com.myapplication.package
chmod 777 files
chmod 777 files/myfile.extension

    The run-as command allows you to execute shell commands with your app's rights. You can only use it on debuggable apps, which yours should be if you're developing it.