Below is the code for my Activity 


        import android.app.Activity;
        import android.os.Bundle;
        import android.support.v7.widget.ShareActionProvider;
        import android.view.Menu;
        import android.view.MenuItem;
    
        public class MainActivity extends Activity {
    	private ShareActionProvider shareAction;
    
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.activity_main);
    	}
    
    	@Override
    	public boolean onCreateOptionsMenu(Menu menu) {
    		// Inflate the menu; this adds items to the action bar if it is present.
    		getMenuInflater().inflate(R.menu.activity_main, menu);
    		MenuItem item = menu.getItem(R.id.menu_settings);
    		shareAction = (ShareActionProvider) item.getActionProvider();
    		return true;
    	}
    }

The Problem is that there is a cast error from ActionProvider to ShareActionProvider.Why it is so 
below is activity_menu.xml

     &lt;menu xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot; &gt;

    &lt;item
        android:id=&quot;@+id/menu_settings&quot;
        android:orderInCategory=&quot;100&quot;
        android:showAsAction=&quot;always&quot;
        android:title=&quot;@string/menu_settings&quot;
        android:actionProviderClass=&quot;android.widget.ShareActionProvider&quot;
        /&gt;

    &lt;/menu&gt;

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Unable to cast Action Provider to Share Action Provider