Android 4.0 share items on action bar (API Level 14 ICS )

actions.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:id="@+id/action_share"
          android:title="@string/action_share"
          android:showAsAction="ifRoom"
          android:actionProviderClass="android.widget.ShareActionProvider"
           />
</menu>

ActivityWithShareActions.java

   public static final String SHARE_URL = "shareUrl";
    public static final String SHARE_TITLE = "shareTitle";
    private ShareActionProvider mShareActionProvider;

    private String shareUrl;
    private String shareTitle;

  @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.actions, menu);
        // return true;
        // Set up ShareActionProvider's default share intent
        MenuItem shareItem = menu.findItem(R.id.action_share);
        mShareActionProvider = (ShareActionProvider) shareItem.getActionProvider();


        /** Defines a default (dummy) share intent to initialize the action provider.
         * However, as soon as the actual content to be used in the intent
         * is known or changes, you must update the share intent by again calling
         * mShareActionProvider.setShareIntent()
         */
        setShareInfo(this.shareUrl, this.shareTitle);
        return super.onCreateOptionsMenu(menu);
    }
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        // set defaults and recover on orientation change
        this.shareUrl = getString(R.string.share_defaulturl);
        this.shareTitle = getString(R.string.share_defaulttitle);
        if(null != savedInstanceState){
            this.shareUrl = savedInstanceState.getString(SHARE_URL, this.shareUrl);
            this.shareTitle = savedInstanceState.getString(SHARE_TITLE, this.shareTitle);
        }
    }

@Override
    protected void onSaveInstanceState(Bundle outState) {
        outState.putString(SHARE_URL, shareUrl);
        outState.putString(SHARE_TITLE, shareTitle);
        super.onSaveInstanceState(outState);
    }


 
    
    /**
     * call that method when the sharing data is set (onCreate, inResume, datacallback..)
     */
    public void setShareInfo(String url, String title) {
        Log.d(LOG_TAG, "set share info. url: " + url + " title: " + title);

        this.shareUrl = url;
        this.shareTitle = title;
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("text/plain");

        intent.putExtra(Intent.EXTRA_TEXT, getResources().getString(R.string.share_message_text, title, url));
        intent.putExtra(Intent.EXTRA_SUBJECT, getResources().getString(R.string.share_message_subject, title));
        if (null != mShareActionProvider)
            mShareActionProvider.setShareIntent(intent);
        else Log.w(LOG_TAG, "shareActionProvider is null");

    }