I did, but I think that there is a flaw with the Android control on the Nexus. I tried a different app using the same control and it had the same problem. The add icon with the key and the plus brings up the dialog box but the bottom half is chopped off and you have no choice but to cancel. The app that I used successfully had a different UI control ( a simple add button). Obviously, it is impossible to test on all devices but this was a useful exercise as I will try to create my own app at some point. (This will be a demo for something I do at work so won't ever end up on Google Play).