Jetpack Compose Recomposition: A Deep Dive
7 min read
A detailed look at how Compose recomposition works under the hood, what triggers it, how the slot table tracks state, and how to control it in production apps.
Event Tracking System Design for Android Applications
6 min read
A systems-level breakdown of designing an event tracking system for Android, covering batching, schema enforcement, local persistence, and delivery guarantees.
Understanding ANRs: Detection, Root Causes, and Fixes
8 min read
A systematic look at Application Not Responding errors on Android, covering the detection mechanism, common root causes in production, and concrete strategies to fix and prevent them.
Memory Leaks in Android: Patterns I've Seen in Production
8 min read
Real-world memory leak patterns from production Android apps, covering lifecycle-bound leaks, static references, listener registration, and systematic detection strategies.
Startup Time Optimization: What Actually Moves the Needle
8 min read
A practical breakdown of Android app startup optimization, covering cold start internals, measurement methodology, and the interventions that produce real improvements.
Measuring and Reducing Jank in Compose Apps
8 min read
A systematic approach to identifying, measuring, and eliminating frame drops in Jetpack Compose applications, with concrete patterns and tooling strategies.
Debugging Performance Issues in Large Android Apps
7 min read
A systematic approach to identifying, isolating, and fixing performance bottlenecks in large Android codebases, covering profiling strategies, common pitfalls, and production-grade tooling.
Avoiding Hidden Recomposition Traps in Compose
9 min read
Practical catalog of non-obvious Compose patterns that trigger excessive recomposition, with fixes and measurement strategies for each.
How I Profile Android Apps in Production
7 min read
Techniques for collecting meaningful performance data from production Android apps without degrading user experience, covering sampling strategies, custom metrics, and real-world pitfalls.
How Garbage Collection Impacts Android Performance
9 min read
A detailed look at ART's garbage collection mechanisms, how GC pauses affect frame rates, and practical strategies to minimize GC impact in production Android apps.
Binder, Threads, and Performance Implications
8 min read
A deep examination of Android's Binder IPC mechanism, its thread pool model, and the performance consequences that surface at scale in large applications.
Memory Allocation Patterns That Hurt Performance
9 min read
Concrete memory allocation anti-patterns in Android and Kotlin code that degrade performance, with profiling strategies and fixes for each.
Optimizing RecyclerView vs Compose Lists
8 min read
A side-by-side comparison of RecyclerView and LazyColumn performance characteristics, optimization strategies, and trade-offs for production Android apps.
Understanding Android Lifecycle at Scale
7 min read
How lifecycle mismanagement causes memory leaks, state loss, and crashes in large Android apps, with patterns for handling lifecycle correctly across complex component hierarchies.
Understanding the Android Main Thread at Scale
9 min read
A systems-level look at the Android main thread, its message queue, how work is scheduled and blocked, and strategies for keeping it responsive in large-scale apps.
Managing Large Dependency Graphs in Android
8 min read
Strategies for structuring, optimizing, and debugging dependency injection graphs in large Android apps using Dagger/Hilt, covering scoping, build performance, and runtime cost.
Reducing APK Size Without Breaking Features
8 min read
Practical techniques for shrinking Android APK size in production apps, covering R8 configuration, resource optimization, native library management, and the trade-offs of each approach.
Diagnosing Battery Drain in Android Apps
8 min read
A structured methodology for identifying and fixing battery drain in Android apps, covering wake locks, location updates, background work, and network polling patterns.
Handling Background Execution Limits Correctly
8 min read
A comprehensive guide to working within Android's background execution restrictions across API levels, covering Doze, App Standby, foreground service requirements, and WorkManager strategies.
Designing Background Job Systems for Mobile Apps
7 min read
Architecture for reliable background job execution on Android, covering WorkManager, job prioritization, constraint handling, and failure recovery.
Debugging Heisenbugs in Android Apps
9 min read
Strategies for diagnosing and fixing bugs that disappear when observed, covering race conditions, timing-dependent failures, and non-deterministic behavior in Android applications.
Performance Regressions: How I Detect Them Early
8 min read
A practical framework for catching performance regressions before they reach production, covering CI benchmarks, statistical analysis, alerting strategies, and automated bisection.
Designing Secure Auth Flows for Mobile Applications
7 min read
Architecture for secure authentication flows in mobile apps, covering OAuth 2.0 with PKCE, token management, biometric auth, and session security.