title: Determine if ShareActionProvider is triggered
body: <p>I am having problems with the ShareActionProvider. I like to share the current url of an webview (url can be changed dynamically via JS) via a ShareActionProvider. To do this I overwrote onOptionsItemSelected to change the Intent via setShareIntent. But when I click on the ShareActionProvider and share it via a specific application, nothing happens. I debugged it and I found out that onOptionsItemSelected is not triggered. Can somebody help me out?</p>
  
  <pre><code>public boolean onCreateOptionsMenu(Menu menu) {
      getMenuInflater().inflate(R.menu.game, menu);
  
      MenuItem mShareActionProviderItem = (MenuItem) menu.findItem(R.id.action_share);
      mShareActionProvider = (ShareActionProvider) mShareActionProviderItem.getActionProvider(); // is a field
      Intent sendIntent = new Intent(Intent.ACTION_SEND);
      sendIntent.setType("text/plain");
      mShareActionProvider.setShareIntent(sendIntent); //needed to be able to click on Item
  
      mShareActionProviderItem.getActionView().setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
              String url = ((GameFragment) getFragmentManager().findFragmentByTag(GAME_FRAGMENT)).getUrl();
  
              /*ShareButton set URL*/
              Intent sendIntent = new Intent(Intent.ACTION_SEND);
              sendIntent.setType("text/plain");
              sendIntent.putExtra(Intent.EXTRA_TEXT, String.format(getResources().getString(R.string.share_text), url));
              mShareActionProvider.setShareIntent(sendIntent);
          }
      });
      return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      switch(item.getItemId()) {
          case R.id.action_share:
              /*URL holen*/
              String url = ((GameFragment) getFragmentManager().findFragmentByTag(GAME_FRAGMENT)).getUrl();
  
              /*ShareButton mit URL bestücken*/
              ShareActionProvider mShareActionProvider = (ShareActionProvider) item.getActionProvider();
              Intent sendIntent = new Intent(Intent.ACTION_SEND);
              sendIntent.setType("text/plain");
              sendIntent.putExtra(Intent.EXTRA_TEXT, String.format(getResources().getString(R.string.share_text), url));
              mShareActionProvider.setShareIntent(sendIntent);
              break;
          default:
              return super.onOptionsItemSelected(item);
      }
      return true;
  </code></pre>