question: What's the purpose of useLifecycleObserver option?

[lwasyl]

Basically title, the default value is false, when would/should I set it to true? I want to track application lifecycle events so I'm setting trackApplicationLifecycleEvents to true but I don't know what's the significance of useLifecycleObserver. The documentation just says enables the use of LifecycleObserver to track Application lifecycle events but it doesn't explain what I should consider when enabling this flag

[wenxi-zeng]

hi @lwasyl, trackApplicationLifecycleEvents = true tracks lifecycle events regardless the value of useLifecycleObserver, though in different ways. if useLifecycleObserver = false, lifecycle events are tracked via the old android lifecycle hooks ActivityLifecycleCallbacks. otherwise, lifecycle events are tracked via DefaultLifecycleObserver

for example, on activity created, if useLifecycleObserver = false, the sdk calls to the override method onCreated from DefaultLifecycleObserver explicitly to track lifecycle events. however, if useLifecycleObserver = true, onCreated is invoked by the lifecycle observer automatically. the end results are the same. choose the value that fits your use case.

[lwasyl]

Hi, thanks but that doesn't really answer my question - what would be my use case for using one or the other? As a library consumer I still don't know if I should change the default or not. If both options work the same, why have it configurable in the first place?

[wenxi-zeng]

if you already use lifecycle observer in your app, you can set useLifecycleObserver = true, but you don't have to. this flag is designed for the apps that did not implement lifecycle observer.