Permission Denial: opening provider android.suppor

问题:

I was having some problem when trying to perform an application upgrade in Android emulator. The flow of the scenario is from an Activity, I will execute AsyncTask A which open up fragment A, then inside AsyncTask A, I will check if version upgrade is available.

If available and user selected "Okay" from fragment A, I will proceed to AsyncTask B to open up fragment B which show a message to user saying that upgrading is in process. In AsyncTask B doInBackground(), I will execute the install() and in onPostExecute(), I will show successful message.

In my AsyncTask B where I execute the install:

@Override
protected Boolean doInBackground(Void... params) {
boolean ret= viewmodel.installApk(mActivity);
return ret;
}

In my view model class:

public boolean installApk(Activity mActivity){
    boolean success = false;
    String fullPath = scanDirectoryForApk();

    System.out.println("INSTALLING APK ......................... ");

    Intent intent = new Intent(Intent.ACTION_VIEW);
    Uri apkURI = FileProvider.getUriForFile(mActivity, mActivity.getApplicationContext().getPackageName() + ".provider", new File(fullPath));
    intent.setDataAndType(apkURI, "application/vnd.android.package-archive");
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    mActivity.startActivity(intent);
    return true;
 }

However, when I execute the code above, no error message was shown and the version upgrade is not working as well. It basically just restart the intent and there is no upgrade at all.

It does not prompt me for the permission to install new version as well. Any ideas?

By the way, my android emulator is not rooted and therefore I could not use the "su" command approach.

Thanks!

EDIT

As suggestion by @Sagar, I changed my code above to:

Intent intent = new Intent(Intent.ACTION_VIEW);
    Uri apkURI = FileProvider.getUriForFile(mActivity, mActivity.getApplicationContext().getPackageName() + ".provider", new File(fullPath));

    List<ResolveInfo> resInfoList = mActivity.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
    for (ResolveInfo resolveInfo : resInfoList) {
        String packageName = resolveInfo.activityInfo.packageName;
        mActivity.grantUriPermission(packageName, apkURI, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
    }

    intent.setDataAndType(apkURI, "application/vnd.android.package-archive");
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    mActivity.startActivity(intent);

And I am getting new error message from logcat:

Error staging apk from content URI
java.lang.SecurityException: Permission Denial: opening provider android.support.v4.content.FileProvider from ProcessRecord{3883c8 9647:com.google.android.packageinstaller/u0a20} (pid=9647, uid=10020) that is not exported from UID 10085

The intent error message is telling me "There was a problem parsing package".

回答1:

You can try to merge

intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

into

intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_ACTIVITY_NEW_TASK);

I met the same issue as you, and this solution rescued myself.