Lokie is a high‑performance iOS AOP framework written in C++14 that replaces the slow Aspect library by using libffi‑based trampolines, offering thread‑safe method interception, detailed API usage, runtime internals, and assembly‑level trampoline implementation with significant speed improvements.
This article explains how to implement method‑execution time monitoring on iOS by hooking objc_msgSend using fishhook and custom assembly, detailing the concepts of hooks, the dyld symbol‑rebinding process, and providing complete code examples for building the QiLagMonitor tool.
This article explains how to solve post‑release user‑side problems by recording UI events and data streams, replaying them through a custom framework that simulates touch events, uses a unified interceptor, and hooks Objective‑C blocks, providing a complete end‑to‑end solution for mobile developers.
Xianyu’s technical team built an offline replay system that records UI interactions and all relevant runtime data during app use, then replays the exact sequence with injected data, letting developers instantly reproduce user‑reported bugs and facilitating future automated testing with minimal intrusion.
