How do I check if an app is a non-system app in Android?

Question

I am getting a list of ApplicationInfo Objects with packageManager.getInstalledApplications(0) and attempting to categorize them by whether or not they are a sy

Answer 1

If having an APK file and want to check is it System app or User installed a Simple logic:- System app Files are not writable

private boolean isSystemApkFile(File file){
   return !file.canWrite();
}