HW4: App Inventor

Hi all,

Let's have a little bit more challenging homework this week. But don't worry. It is still supposed to be very simple. You are asked to build a very simple app with app inventor.

Just build anything you want. But your app should include a button that whenever it is clicked, the color of the button will change. For the rest of the app, just do whatever you want.

After you are done, please just take a short video for your app as submission. The video probably can become too big as email attachment. You may upload to youtube or any video-sharing website and send me the link instead.



p.s. if you don't have android device, you may use an emulator. But that is probably quite slow to run.