Unable to cast Action Provider to Share Action Provider

Question

Below is the code for my Activity

    import android.app.Activity;
    import android.os.Bundle;
    import android.support.v7.widget.ShareActionProvider;
          


        

Answer 1

The problem was that what @CommonsWare said about not using the support library ShareActionProvider and also even if i did then it also wont have worked out because when using Support Library we require Custom Prefixes for some actions like showAsAction

Answer 2

I had the same problem and I have found the solution:

1) You have to use:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:bwq="http://schemas.android.com/apk/res-auto" >

    <item
        android:id="@+id/menu_share"
        android:title="@string/menu_share"
        bwq:actionProviderClass="android.support.v7.widget.ShareActionProvider"
        bwq:showAsAction="always"/>
</menu>

2) and in Java

import android.support.v7.widget.ShareActionProvider;

and

// Locate MenuItem with ShareActionProvider
MenuItem item = menu.findItem(R.id.menu_share);
// Fetch and store ShareActionProvider
mShareActionProvider = (ShareActionProvider) MenuItemCompat.getActionProvider(item);