Picker for numbers
<p>ok so im making a lovely little app for my phone that will let me convert bases. This would make my APCS homework much better and provide me some practical and useful coding experience.</p>

<p>I see lots of questions concerning the time and date pickers but that is not what i am looking for. For example, on iOS, if you press on something that is almost like a dropdown menu you can scroll through the selections and choose which one you want. Any ideas?</p>
