From which version of Android api can I develop a scrollable app widget? <p>I like the scrollable Calendar App Widget (see picture), and I want to develop a similar scrollable widget for my application. But I'm not sure from which version of Android api (or platform) can I develop a scrollable app widget? Any ideas? Thank you so much! <img src="https://i.stack.imgur.com/AgHio.jpg" alt="enter image description here"></p>