Matt McKenna

#Android GDE • Public Speaker • Community Enthusiast

[Matt McKenna @himattm]

I am extremely excited to announce that I have been recognized as a @GoogleDevExpert for Android! 🥳

Thank you to everyone who has been a part of my #Android journey so far!

[Jorge Castillo @JorgeCastilloPr]

Dejavu is a library to test recomposition count and track recompositon regressions.

Very convenient 💯

[Chris Banes @chrisbanes]

Hunting down Jetpack Compose recomposition issues manually is a huge time sink

I’ve spent the past few weeks using @himattm's Dejavu to simplify this:

- Write Dejavu tests to establish a baseline
- Tell the agent to hunt for issues and A/B fixes
- Profit

[Matt McKenna @himattm]

Dejavu is KMP, so the skills work across Android, JVM Desktop, iOS, and WasmJs. They cross-reference each other so the agent moves between them on its own.

Try it on a composable that's been bugging you.

Repo: https://t.co/O7KOj0HsGp
Docs: https://t.co/9eKIgqWAcs

[Matt McKenna @himattm]

I built Dejavu because agents don't feel extra recompositions. They write Compose code that compiles and passes its tests while the UI quietly does ten times the work. Dejavu turns that hidden work into a failing test, giving the agent a count to optimize against.

[Matt McKenna @himattm]

Two lines in any Claude Code session:

/plugin marketplace add himattm/dejavu
/plugin install dejavu@dejavu

[droidcon USA @droidconUSA]

Two voices, one stage! Join @himattm & Sam Greenberg at #dcnyc24 📢

Discover how to ensure your #Android app is accessible for users with visual impairments – practical strategies, diagnose issues, & leverage Android’s built-in tools.

https://t.co/djgfGbNlxk

[droidcon USA @droidconUSA]

Help us welcome @himattm to the #dcnyc23 speaker lineup 🚨

In this talk, you'll learn how to reframe the mental model of your #app & walk away w/ strategies for adding offline support, how to avoid key stumbling points, & benefits you'll bring to users.

https://t.co/djgfGbNlxk

[Matt McKenna @himattm]

@csinco @alexstyl lmk if you have any questions but these should work 🎧

[Matt McKenna @himattm]

Trying out #Threads!

See ya there 😉

https://t.co/rXXvb4CvaC

[Matt McKenna @himattm]

Trying to find all the #AndroidDev peeps on Threads! lmk if you're there!

https://t.co/RMn0gGC3PS

[Matt McKenna @himattm]

Trying out #Threads!

See ya there 😉

https://t.co/rXXvb4CvaC

[Matt McKenna @himattm]

Ah man, some things ran a bit long so I'm going to be about an hour late. See ya then.

[Matt McKenna @himattm]

Streaming again for a bit tonight!

Hopefully we can finish out the Compose code lab!

Come hang out around 7:30pm EST!

https://t.co/uTYBSlQ1TE

#AndroidDev #Android #JetpackCompose #Kotlin

[Matt McKenna @himattm]

Remember join up on Mastodon for more fun!

https://t.co/CWh0XgwzYs

[Matt McKenna @himattm]

Streaming again for a bit tonight!

Hopefully we can finish out the Compose code lab!

Come hang out around 7:30pm EST!

https://t.co/uTYBSlQ1TE

#AndroidDev #Android #JetpackCompose #Kotlin

[Matt McKenna @himattm]

btw I'm way more active over here:

https://t.co/58mmsF32nb

[Matt McKenna @himattm]

Had a fantastic time on stream tonight. Thanks to everyone who came by and hung out! 🙌

[Matt McKenna @himattm]

We'll be going through this course!

https://t.co/oK9W5M77zN

[Matt McKenna @himattm]

Streaming again tonight! Looking like it will be a little after 7:30 EST.

🤿 Diving into #JetpackCompose to learn it. Haven't done much with it at all and I want to become better at it.

https://t.co/zmeTMfKGkV