So, that´s what I wanna know. How can I set the visibility of the menu programatically in Android?? This is how I have my menu:

```
public boolean onCreateOptionsMenu(Menu menu){
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu, menu);
    return true;
}

public boolean onOptionsItemSelected (MenuItem item){
    switch (item.getItemId()){
        case R.id.menuregistrar:
            break;
        case R.id.menusalir:
            break;
    }
    return true;
}

```

But this code is not on the onCreate, so I don´t know how to set one item visible or invisible programmatically (in my case, I want the "menuregistrar" to be invisible once I have registered my application and forever.