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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/05/2026

Published the latest issue of Dispatch yesterday. Lots of Android goodies in there that you should know about. You can read it here — www.jetpackcompose.app/newsletter/d... #AndroidDev #AI

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 11/04/2026

The latest issue of Dispatch goes out in ~5 mins. This is a really important topic in the AI first world we live in and is based on my observation helping thousands of engineers at companies like Airbnb and Databricks be AI first. www.jetpackcompose.app/newsletter #AndroidDev #AI

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 28/03/2026

The latest issue of Dispatch just went out 🚀 We cover some spicy topics and you don't want to miss the chance to learn a few new things in < 5mins. #AndroidDev

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Reposted by JetpackCompose.app

Vinay Gaba @vinaygaba.bsky.social · 07/02/2026

Wrote about something I like to call the "40/30/30 rule" for AI dev tools. I divide the choice of tools into 3 buckets think it's completely normal to use all the 3 types... in the same day!! More here - www.jetpackcompose.app/newsletter/d... #AndroidDev #AI

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 06/02/2026

Want your Jetpack Compose library to be featured on our site? Well we now have a dedicated page where you can submit your libraries and reach thousands of Android developers 🚀 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 29/01/2026

The setup mirrors .gitignore syntax: Gemini won't see those files, but still understands the rest of your codebase. Fine-grained control. Best of both worlds. For more tips like these — www.jetpackcompose.app/newsletter

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 29/01/2026

Want Gemini in Android Studio but worried about sharing sensitive IP? Use .aiexclude files—it's like .gitignore but for AI. Your private code stays private while you still get contextually rich AI suggestions. #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 28/01/2026

When does onAbandoned happen? When the effect was never successfully "remembered" - rare, but possible. If correctness is critical, you need to handle both cases explicitly:

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 28/01/2026

🚨 ANSWER TIME 🚨 The answer: onDispose is NOT guaranteed to be called in all cases! DisposableEffect implements RememberObserver. The dispose is called in onForgotten but NOT in onAbandoned.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 28/01/2026

Hint: Think about what happens if composition is "abandoned" before being fully remembered...

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 28/01/2026

🐛 SPOT THE BUG 🐛 Is the onDispose callback GUARANTEED to be called? #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 24/01/2026

That's it. No View references. No hacky workarounds. Use cases: ✅ Screenshot sharing ✅ Bug report attachments ✅ Social media content ✅ Image processing pipelines ✅ Custom export features

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 24/01/2026

When you need the bitmap (for sharing, bug reports, etc.):

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 24/01/2026

The old way involved "View.drawToBitmap()", Canvas shenanigans, and prayers. The new way? Just a few lines:

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 24/01/2026

Converting a Composable to a Bitmap used to require black magic and a sacrifice to the Android gods. Not anymore. rememberGraphicsLayer() makes it ridiculously simple. Thread on capturing Composables as images 🧵 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 31/12/2025

This is purely to get the community together so come hang 🤙 The more people that sign up, the higher the odds that we'll be able to assemble a really group so please please help us spread the word out. It's our first time doing it so sharing this will go a long way. Please help us reach more people

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 31/12/2025

Some topics we'll discuss: - How AI is changing engineering - Lessons from Airbnb about why Design Systems fail - How to drive adoption of new tech in a company - The false promise of Server Driven UI and how most implementations are essentially a recreation of CSS like scaffolding and more

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 31/12/2025

We are excited to announce our very first meetup 🥳 📍 Bengaluru (exact location TBD) 🗓️ Jan 4th, 2026 ⏰ 5–7 PM We are bringing together some of the smartest Android engineers in the city for a relaxed evening to hang out, grab a drink, and have fun conversations. luma.com/vslr0fgc #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 07/12/2025

Despite the tiny footprint, it has: Loading from URL, local storage, assets RAM and disk caching Page prefetching Screenshot protection (FLAG_SECURE) Jetpack Compose integration 88KB. Full features. Mind blown.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 07/12/2025

His strategy: ✅ Zero native dependencies ✅ Minimal HTTP (standard HttpsURLConnection, no OkHttp) ✅ Lean UI (RecyclerView) ✅ Custom PinchZoomRecyclerView ✅ R8/ProGuard friendly (no reflection) ✅ Zero bundled assets

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 07/12/2025

Most Android PDF libraries weigh 10-16MB because they bundle native C/C++ code. Rajat Mittal built one that's 88 KILOBYTES. 🤯 How? By ditching native deps and using only Android's built-in PdfRenderer. Thread on lightweight library design 🧵 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 27/11/2025

This is the difference between "code that works" and "code that's fast." Most of us don't need to optimize this deep. But when you do, knowing how to profile and inline matters.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 27/11/2025

Key lesson: In hot code paths, the compiler can't always optimize for you. Sometimes you need to get your hands dirty and inline manually. Tools like Kotlin Explorer help you peek at generated code and find opportunities.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 27/11/2025

Romain rewrote it as one inline helper (resetToPivotedTransform) and slashed the cost to: 168 instructions, 1 branch Just 15% of the original work. 6× faster

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 27/11/2025

The problems: 😔 Two throw-away matrices 😔 A full reset() you mostly overwrite 😔 Generic 4×4 multiplies for data you don't need Result: 1,062 instructions, 39 branches

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 27/11/2025

The "readable" way: Readable? Yes. Efficient? Hell no.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 27/11/2025

@romainguy.dev shared a Compose performance optimization that cut 1,062 ARM64 instructions down to 168. That's 85% reduction in the number of instructions. Thread on why manual function inlining matters 🧵 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 23/11/2025

Official Android docs say the loop is roughly 1000 TIMES SLOWER than a well-crafted SQL query. One query vs multiple round trips to the database. Let SQL do what SQL does best.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 23/11/2025

💡 Performance tip: Iterate in SQL, not in code. #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/11/2025

The engineers who thrive will be those who: Think critically Solve complex problems Push beyond mere implementation Understand the business and users deeply

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/11/2025

As Android OG @ryan.harter.us puts it: "While AI can help solve some development problems, the real difference between mediocre apps and great apps isn't something I believe AI will be able to tackle in the foreseeable future."

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/11/2025

The real skill isn't writing code anymore— code is trending towards being free. The real skills require critical thinking, not code. generation.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/11/2025

AI can help with: ✅ Boilerplate code ✅ Common patterns ✅ Syntax fixes ✅ Documentation But AI can't: ❌ Build relationships ❌ Leverage domain experience ❌ Understand what users actually need

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/11/2025

The difference between mediocre apps and great apps isn't code quality. It's understanding your customer and the problems they need solved. Thread on where Android developers still have the most leverage in this new era of software engineering 🧵 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 18/11/2025

Why Android developers like cooking: You peel the carrot, you chop the carrot, you put the carrot in the stew. You don't suddenly find out that your peeler is several versions behind and they dropped support for carrots in version 4.3 😭😭 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 16/11/2025

The next chapter isn't about reinventing primitives. It's about tools that let MORE people build high-quality apps, and letting everyone spend more time thinking about WHAT they want to build, not HOW. Full discussion in Dispatch Issue #11: www.jetpackcompose.app/newsletter/d...

jetpackcompose.app

Dispatch Issue #11 - 'Future of Android' Special

In today's issue, we talk to some Android experts about their hot-takes, predictions, wishes, and advice on how they expect the Android ecosystem to change—and how developers should prepare for that f...

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 16/11/2025

2008-2021 was defined by rapid evolution: Eclipse → Android Studio Java → Kotlin AsyncTask → RxJava → Coroutines XML → Compose But now? The platform is stable. The tools are state-of-the-art.

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 16/11/2025

"For the first time, an app built in 2021 would look nearly identical to an app built in 2025" This from Gabriel Peal perfectly captures where Android is now. We're not chasing new primitives anymore. We're refining and building on a mature foundation. 🧵 #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 16/11/2025

For more fun facts like this, you gotta subscribe to our newsletter like the best in the business already have 😎 www.jetpackcompose.app/newsletter

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 16/11/2025

Kotlin fixed it with a new explicit method "uppercase(Locale.ROOT)" for consistency. Moral of the story: Language rules are wild, and localization will bite you when you least expect it. Now you know why you see that yellow strikethrough! 😂

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 16/11/2025

Fun fact: toUpperCase() got deprecated because of... Turkey 🦃 Just kidding, not 🦃 but 🇹🇷 In Turkish, uppercase "i" is "İ" (with a dot!), not "I". Since toUpperCase() relied on Locale.getDefault(), your code could behave differently depending on location. #AndroidDev

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 15/11/2025

Finally, Compose is catching up to what designers have been doing in Figma for years. Beautiful UI shouldn't require a PhD in Canvas drawing. Want to know about feature like these, early? Read Dispatch www.jetpackcompose.app/newsletter

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JetpackCompose.app @jetpackcomposeapp.bsky.social · 15/11/2025

Part of ExperimentalMaterial3ExpressiveApi - Google is serious about making expressive, beautiful UIs easier to build. No more squinting at Figma designs wondering how to recreate those gorgeous drop shadows.

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