How to get exactly "Unknown Sources" application list on Android?

Question

How to get exactly "Unknown Sources" application list on Android? what is flag to used? If it is not this method,what are others method? and How to programmically?

    PackageManager pm = this.getPackageManager();
    final List<PackageInfo> appinstalled = pm
            .getInstalledPackages(what is flag??); //

Sorry for my bad English. Thank you.

score 0 · Answer 1 · edited May 23 '17 at 11:53

I know this is an old post but I think the following answer might help you: https://stackoverflow.com/a/42248268/2212770

public static List<String> getAppsFromUnknownSources(Context context)
{
  List<String> apps = new ArrayList<>();
  PackageManager packageManager = context.getPackageManager();
  List<PackageInfo> packList = packageManager.getInstalledPackages(0);
  for (int i = 0; i < packList.size(); i++)
  {
     PackageInfo packInfo = packList.get(i);
     boolean hasEmptyInstallerPackageName = packageManager.
         getInstallerPackageName(packageInfo.packageName) == null;
     boolean isUserInstalledApp = (packageInfo.applicationInfo.flags &
         ApplicationInfo.FLAG_SYSTEM) == 0;

     if (hasEmptyInstallerPackageName && isUserInstalledApp)
     {
        apps.add(packInfo.packageName);
     }
  }

  return apps;
}

score 0 · Answer 2 · answered Apr 18 '11 at 04:49

Someone else may have a better solution, but here's the best I could come up with...

Iterate through all installed packages, comparing each one against a known "good" package that has a good signature, with checkSignatures(int, int) or checkSignatures(String, String). If the return value of checkSignatures is SIGNATURE_UNKNOWN_PACKAGE, then you've got a package from an unknown source.

Otherwise, it doesn't look like any of the flags to getInstalledPackages are intended to filter for unknown sources.

How to get exactly "Unknown Sources" application list on Android?

2 Answers2