KTkodnex Technologyinkodnextech.hashnode.dev·2h ago · 8 min readHow to Set a Wallpaper Programmatically in Android with Kotlin (Retrofit + WallpaperManager)Fetch 4K portrait wallpapers from a REST API and apply them to the home or lock screen. This covers the memory-safe approach, the right flags, and a daily auto-changer with WorkManager. Disclosure: I00
TDTSI DEV Studiointsidevstudio.hashnode.dev·Sep 28 · 6 min readWhat Building a Local-First Private Vault Taught Me About Android PrivacyPrivacy is not one feature. It is a chain of decisions about storage, previews, locking, deletion, and user control When I started working on Xsilent, the idea sounded straightforward: build an Androi00
SDSynfinity Dynamics Pvt Ltdinsynfinitydynamics.hashnode.dev·Sep 22 · 5 min readWhat Is Kotlin, and Why Does It Still Matter in 2026?Kotlin is a modern, statically typed programming language developed by JetBrains that runs on the Java Virtual Machine (JVM). Since 2019, it has been Google's preferred language for Android developmen10
ANAPITube News APIinapitube.hashnode.dev·Sep 21 · 21 min readAn Android news app in Kotlin, from empty project to APKOne page of 20 headlines weighs 608 KB when we take a news API's default response and 18 KB when we ask for only the eight fields a list row renders. That single query parameter, fl=, decides whether 00
GYGulshan Yadavinmrgulshanyadav.hashnode.dev·Sep 17 · 12 min readBuilding an AR Feature in Android: From Zero to WorkingThe full pipeline for a tap-to-place augmented reality feature on Android — ARCore session, SceneView rendering on Filament, plane detection, object placement, and the production pitfalls I hit in the00
TMTrishit Majumdarintrishit.hashnode.dev·Sep 16 · 15 min readWhy Kotlin Won Me Over After JavaI still remember the exact feeling of sitting down to write my first "real" program and having absolutely no idea which language deserved my time. There's a particular kind of paralysis that hits when00
DCDionisio Cortés Fernándezinblog.dionisioc.dev·Sep 14 · 27 min readSOLID Without the Acronym: It's Just Cohesion and CouplingSOLID isn't really five independent principles. It's mostly two long-standing design ideas, wearing five names. High cohesion — keep the things that change together, together. Low coupling — depend 00
GYGulshan Yadavinmrgulshanyadav.hashnode.dev·Sep 14 · 12 min readJetpack Navigation Component in Android — Done CorrectlyThe set of Navigation Component rules I enforce on every Android project — nav graphs, type-safe arguments, back-stack hygiene, and the mistakes that show up in code review. I once took over a project00
GYGulshan Yadavinmrgulshanyadav.hashnode.dev·Sep 12 · 11 min readBest Practices for Android App Security in 2026Release signing, R8, network security config, certificate pinning, and secure storage — the hardening checklist I run on every Android build before it ships. I once reviewed an Android app for a clien00
SGsunny ginneweraofcoding.hashnode.dev·Sep 8 · 1 min readHow to Build Your First Android App with Kotlin & Jetpack ComposeA beginner's guide to modern, declarative mobile app development in the Android ecosystem. Gone are the days of managing split XML views and Java boilerplate. Google's Kotlin-first approach combined 00
