Question 1

How does MLeaksFinder automatically detect memory leaks?

Accepted Answer

MLeaksFinder continuously monitors UIView and UIViewController objects for deallocation during app runtime. If an object isn't deallocated when expected, it triggers an alert with the object's stack, leveraging UIKit's lifecycle to identify leaks without manual intervention or code changes.

Question 2

Can MLeaksFinder find retain cycles in leaked objects?

Accepted Answer

By default, no; you need to manually integrate Facebook's FBRetainCycleDetector. Add it via CocoaPods and enable the macro in MLeaksFinder.h, as the README warns due to licensing issues with the original dependency, making it an extra step.

Question 3

MLeaksFinder or Xcode Instruments for debugging memory leaks?

Accepted Answer

MLeaksFinder is better for real-time, proactive detection during development with no setup, while Instruments offers comprehensive profiling and historical analysis. Use MLeaksFinder for immediate feedback and Instruments for deep-dive investigations in production or complex scenarios.

Question 4

How to mute MLeaksFinder alerts for singleton classes?

Accepted Answer

Override the `willDealloc` method in your singleton class and return NO. This tells MLeaksFinder that the object is intentionally not deallocated, preventing false alerts, as explained in the 'Mute Assertion' section of the README.

Question 5

Does MLeaksFinder work with SwiftUI apps?

Accepted Answer

No, MLeaksFinder is designed for UIKit-based apps and targets UIView and UIViewController objects. For SwiftUI, you'd need alternative tools or significant modifications, as it relies on UIKit's view controller lifecycle and hierarchy.

Question 6

How to extend MLeaksFinder to detect leaks in custom view models?

Accepted Answer

In your UIViewController subclass, override `willDealloc` and use `MLCheck` on your view model property. This integrates the view model into the detection graph, as shown in the example for extending to other objects, allowing for broader leak detection.

MLeaksFinder

What is MLeaksFinder?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions