The menu choices for a Cascades application:
- Action menu (shown on the bottom action bar if you app has one configured as well has swiping from the right)
- Context menu (press and hold an item to display a partial view, hold/drag out to reveal complete menu)
- Application menu (up to five menu items at the top of your app)
- Custom menu (whatever you can think up by accessing the bb::system::MenuManager)
You can read more about all the menus HERE
If you want something that is specifically like android's drop down menu you can always explore option #4 and make a custom one.