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Swiggy was losing users during login and signup despite optimizing app size and launch time. The culprit? Manual data entry errors.

Michael Ramdatt and the Lyft team reveal how they beat every competitor to launch the first rideshare app on CarPlay and Android Auto. The secret? Building their own mapping platform from scratch.

Bringing HDR video to Reels

Company: Meta · Jul 17, 2023
Platform: iOS / Android

Meta just solved a problem most users never notice: making HDR video look great on billions of devices with wildly different capabilities.

Colin White reveals how Coil 3.0 is breaking free from Android to become truly multiplatform. The image loading library that powers countless Android apps is making a bold leap to iOS, web, and desktop.

Skeelo's Android app was freezing on users. The culprit? SharedPreferences blocking the main thread and triggering ANR errors.

Grab's engineering team faced a brutal problem: rain in Southeast Asia would crash their entire ride-hailing system. When demand spiked locally, users everywhere suffered.

Cash App just open-sourced Redwood, their answer to the multiplatform UI problem. Unlike other solutions, it renders with native UI toolkits instead of recreating them.

Flipkart shaved 30% off page load times in their React Native app with 500M weekly visits. Here's how they did it without rewriting everything.

Fullstory got a wake-up call when a prospect flagged a 6% startup time increase from their Android SDK. Even when disabled, the SDK was adding 100ms to app launches.

Keeping Up with Android App Size Growth

Company: Square · Jun 27, 2023
Platform: Android

Square manages hundreds of mobile engineers in a monorepo, all contributing to apps that must stay under Google Play's 150 MB limit. How do they prevent app bloat at scale?

Page not found - Engineering at Meta

Company: Meta · Jun 22, 2023
Platform: iOS / Android

Meta's Engineering blog just hit a 404. Sometimes even the biggest tech companies deal with broken links and content migrations.

Flow testing with Turbine

Company: Cash App · Jun 21, 2023
Platform: iOS / Android

Cash App just open-sourced Turbine 1.0, solving one of the trickiest parts of Kotlin coroutines: testing Flows without the headache.

The article link appears to be broken or unavailable. This is a 404 error page from Medium, not the actual Gojek engineering article about modularizing their Android driver app.

Beautiful Performant Android UI

Company: Instagram · Jun 20, 2023
Platform: Android

Instagram built a full-screen video viewer that needed to feel buttery smooth on every Android device. Here's how they made animations delightful without killing performance.

Improving Video Cache Hits on Swiggy Apps

Company: Swiggy · Jun 20, 2023
Platform: iOS / Android

Swiggy was bleeding money on video bandwidth costs. The culprit? Videos being requested at 270px, 272px, 275px... you get the idea.

Unit Testing Android Apps with MockK

Company: Getir · Jun 19, 2023
Platform: Android

Emre Muhammet Engin from Getir tackles a truth bomb: if your code is hard to test, your design probably sucks. His deep dive into MockK shows Android developers how to fix that.

Distributed Load Testing Using Locust

Company: Glance · Jun 15, 2023
Platform: iOS / Android

Glance's engineering team scaled their load testing from basic scripts to a full Kubernetes-powered distributed system. Here's how they did it with Locust.

AWS Device Farm now supports rooted Android devices, unlocking granular performance benchmarking that was previously impossible at scale.

Patrick Tyska and Terry Yiu from Cash App reveal how the same $1,000 needs to display four different ways across their app. Their solution? Kotlin Multiplatform to consolidate 10 separate money formatters into ...

Premise's mobile team caught a sneaky 3x build time regression that only showed up in CI. Here's how they hunted it down using Gradle Enterprise.

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