如何获得应用程序的所有授予的权限

Question

I want to get all granted permissions. I know I can get all requested permissions by packageinfo.requestedPermissions but I want to know list of granted permissions and granted permissions can be lesser then requested in case of android M. So I just wanted to know that is there way that I can get list of all granted permissions?

I know from list of requested permission I can check for that permission weather granted or not but I want to know list of all granted permission. Don't want to check for every requested permission.

Answer 1

A simple function that returns all the permissions that have been requested and granted for a given package could look like this:

List<String> getGrantedPermissions(final String appPackage) {
    List<String> granted = new ArrayList<String>();
    try {
        PackageInfo pi = getPackageManager().getPackageInfo(appPackage, PackageManager.GET_PERMISSIONS);
        for (int i = 0; i < pi.requestedPermissions.length; i++) {
            if ((pi.requestedPermissionsFlags[i] & PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0) {
                granted.add(pi.requestedPermissions[i]);
            }
        }
    } catch (Exception e) {
    }
    return granted;
}

Note that this requires API level 16 or above, but that should hopefully not be an issue these days.

Answer 2

Have you tried this? for this you should iterate through your array

boolean permissionGranted = PermissionChecker.checkSelfPermission(MyActivity.this,
                    android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    == PackageManager.PERMISSION_GRANTED;

there is also method for acquiring needed Parmissions like below:

private static String[] PERMISSIONS = {
        android.Manifest.permission.READ_EXTERNAL_STORAGE,
        android.Manifest.permission.WRITE_EXTERNAL_STORAGE
};

ActivityCompat.requestPermissions(
                        MyActivity.this,
                        PERMISSIONS,
                        REQUEST_EXTERNAL_STORAGE
                );

public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case REQUEST_EXTERNAL_STORAGE: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                 //handle
            }
        }
    }
}

just pack all your permissions to PERMISSIONS array, but be aware that on 6.0+ this will cause some system dialog appear

Answer 3

You can check permission one by one and add to list:

// Should we show an explanation?

        List<String> listPermissionsNeeded = new ArrayList<>();
        // No explanation needed, we can request the permission.
        if((ContextCompat.checkSelfPermission(context,
                Manifest.permission.WRITE_EXTERNAL_STORAGE)
                != PackageManager.PERMISSION_GRANTED))
        {
            listPermissionsNeeded.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
        }
        if((ContextCompat.checkSelfPermission(context,
                Manifest.permission.GET_ACCOUNTS)
                != PackageManager.PERMISSION_GRANTED))
        {
            listPermissionsNeeded.add(Manifest.permission.GET_ACCOUNTS);
        }
        if((ContextCompat.checkSelfPermission(context,
                Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED))
        {
            listPermissionsNeeded.add(Manifest.permission.ACCESS_COARSE_LOCATION);
        }
        if((ContextCompat.checkSelfPermission(context,
                Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED))
        {
            listPermissionsNeeded.add(Manifest.permission.ACCESS_FINE_LOCATION);
        }
        if((ContextCompat.checkSelfPermission(context,
                Manifest.permission.READ_PHONE_STATE)
                != PackageManager.PERMISSION_GRANTED))
        {
            listPermissionsNeeded.add(Manifest.permission.READ_PHONE_STATE);
        }
        if (!listPermissionsNeeded.isEmpty()) {
            ActivityCompat.requestPermissions(context,
                    listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),
                    MY_PERMISSIONS_REQUEST_MULTIPLE_PERMISSION);
        }