Android : How to share multiple files using ShareActionProvider in Contextual Action Bar?

I am having a ListView in my Activity. On long press of that list view, I have the contextual action bar opened. It has a Share option to share the selected items in the list (multiple items can be selected) through gmail/whatsapp/etc.

<item android:id="@+id/menu_share" android:title="Share" android:icon="@android:drawable/ic_menu_share" android:actionProviderClass="android.widget.ShareActionProvider" app:showAsAction="ifRoom" />

this is my Share option in the menu layout file.

I have a class implementing ActionMode.Callback to handle the contextual action bar and its icons.

I initialized a ShareActionProvider object inside the overriden onCreateActionMode(ActionMode mode, Menu menu) for the Share menu item.

mShareActionProvider = (ShareActionProvider) menuItem.getActionProvider();

My list view consists of filenames. My requirement is that, if the user selects multiple items in the list view (first long press and then normal press for successive selection) I should be able to share all those files.

I am using the below for such an intent (all files corresponding to the filenames in the listview are audio - amr files).

Intent shareIntent = new Intent(Intent.ACTION_SEND_MULTIPLE);
shareIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM,uriList);
shareIntent.setType("audio/AMR");

Here, uriList is an ArrayList of Uris. Now where should I call the method mShareActionProvider.setShareIntent(intent); ?

I can't call it in the onCreateActionMode(ActionMode mode, Menu menu) because, the user may select some more items in the list after the first long press.

If I call it directly in the onActionItemClicked(ActionMode mode, MenuItem item) , my Share icon seems to be inactive.

If I call it in both onCreateActionMode(ActionMode mode, Menu menu) and onActionItemClicked(ActionMode mode, MenuItem item) using the same intent, the share intent doesn't seem to be updated. Kindly help..