Activity.java

	@Override
	public boolean onPrepareOptionsMenu(Menu menu) {
		// getMenuInflater().inflate(R.menu.text_menu, menu);
		getMenuInflater().inflate(R.menu.actionview_menu, menu);
		// menu.getItem(0).setVisible(false);
		this.menu = menu;

		MenuItem shareItem = menu.findItem(R.id.action_share);
		ShareActionProvider actionProvider = (ShareActionProvider) MenuItemCompat
				.getActionProvider(shareItem);
		Intent intent = new Intent(Intent.ACTION_SEND);
		intent.setType("text/plain");
		intent.putExtra(Intent.EXTRA_TEXT, "Test ShareActionView");
		actionProvider.setShareIntent(intent);
		return super.onPrepareOptionsMenu(menu);
	}
//you can add this onCreateOptionsMenu as well ,but you need to inflate menu at there

menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto" >

    <item
        android:id="@+id/action_share"
        android:title="Share"
        app:actionProviderClass="android.support.v7.widget.ShareActionProvider"
        app:showAsAction="always"/>

</menu>