WCRetainCycleChecker is a tool to check the retain-cycle between UIViewController subclass and proterties it retains.
🇨🇳 中文
WCRetainCycleChecker use method swizzling to change the implementation of UIViewController.viewDidDisappear.
pod 'WCRetainCycleChecker', :configurations => ['Debug']Then:
cd YOUR_PODFILE_PATH && pod install
After finish it, WCRetainCycleChecker will effect in your project. If your UIViewController subclass has retain-cycle, WCRetainCycleChecker will warn you with following message:
Warning：<RetainedViewController: 0x7fa789f01800> still in memory after `-viewDidDisappear` (2s)
You can also use FBRetainCycleDetector in WCRetainCycleChecker.retainCycleFound callback to get more infomation.
There is also a repo called MLeaksFinder which is more powerful than mine 👍.