Android, runtime exec removing package

Question

val newInput = "pm uninstall --user 0 $input"
val process = Runtime.getRuntime().exec(newInput)
process.waitFor()

'input' is the package name that want to remove. I signed the application to make it a system app. When I try to run this code I get:

2020-12-23 11:39:18.313 19993-19993/? E/cutils-trace: Error opening trace file: Permission denied (13) 2020-12-23 11:39:18.489 19993-19993/? E/memtrack: Couldn't load memtrack module (No such file or directory) 2020-12-23 11:39:18.489 19993-19993/? E/android.os.Debug: failed to load memtrack module: -2

How can I remove an application from another application with permission?

Answer 1

For other application removal, you have to get approval from the user. You can perform this process by using intent.

    Uri packageURI = Uri.parse("package:"+"some.package.to.remove");
    Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
    startActivity(uninstallIntent);