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03 March 2021

Android Dev Challenge: Week 2 - Countdown timer

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Posted by Florina Muntenescu, Developer Relations Engineer

3...2...1… Time for another challenge! Welcome to the second week of the #AndroidDevChallenge! We loved seeing your creative submissions in week #1 so we can’t wait to see what you’ll build in week #2. Here’s your challenge:

Week #2 - Countdown timer ⏲️

Android 12 logo

Create a working, single screen countdown timer. You have until March 9th, 23:59 PST to submit your entry.1

Your UI must be fully built in Compose. To help you with the implementation, check out the Compose documentation on state and animation. For some hands-on learning try out the Compose pathway, with codelabs covering several topics useful for completing this challenge.

Your solution must be implemented in a GitHub repository. Make a copy of this Github repository template and follow the instructions in the README. The template contains a basic Hello World! in Compose and a continuous integration setup.

This week’s prize: a Compose poster pack!

Our second week's prize is a work of art, where the Composing is a collaboration with you! The first 500 people to successfully complete this challenge will receive a Jetpack Compose poster and a set of Android pencils, your own stress relieving coloring experience. Plus, you'll get a limited edition Jetpack Compose comic strip poster, charting how Team Jetpack saves the galaxy from bad UI.

Week #2 prize: a Jetpack Compose poster pack

Help make Jetpack Compose better

Community is at the heart of Jetpack Compose and your feedback helps us build a better product: