Master LifecycleService, Structured Concurrency, and Flow-based architectures to eliminate background memory leaks. In the Android ecosystem, a  Service  is a powerful tool for background work, but it is often the source of significant stability issues. Poor implementation creates  Zombie Services : background processes that haunt system memory long after their utility has expired. These “Zombies” are a common cause of sluggish performance, mysterious crashes, and Out-of-Memory (OOM) kills. To kill a Zombie Service, you must move beyond basic code and embrace  Structured Concurrency  and the  Jetpack Lifecycle. 🔍 The Real-World Failure Scenario Imagine a “File Sync” feature. We once audited a project where a Service held a hard reference to an  UploadActivity  to update a progress bar. When the user rotated the screen five times, the Service retained  five separate instances  of the Activity in memory. Memory usage spiked from...