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I have an Options Menu on my Activity with an MenuItem "Start". When this MenuItem is selected I would like to alter the Menu so it contains a MenuItem "Stop". And finally when "Stop" is selected, I would like to alter back to "Start". Here is parts of my code that isn't working. I have both "Start" and "Stop" listed in mymenu.xml I should probably remove "stop" when the menu is created: public class MyActivity extends Activity { private boolean isStarted = false; @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); menu.removeItem(R.id.stop); inflater.inflate(R.menu.mymenu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.start: isStarted = true; return true; case R.id.stop: isStarted = false; return true; default: return super.onOptionsItemSelected(item); } } @Override public boolean onPrepareOptionsMenu(Menu menu) { if(isStarted) { menu.removeItem(R.id.start); menu.add(R.id.stop); } else { menu.removeItem(R.id.stop); menu.add(R.id.start); } return true; } }

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