What happens if I don't call initializeMMKV?

[hoangelec]

Hello all,
I'm using MMKV for my Swift project, and I just realized that in my project I haven't called initializeMMKV() at app startup this whole time, however I can still utilize MMKV functions without problems so far.
So I would like to know the purpose of why we need to initializeMMKV as you instructed in the tutorial?

Thanks in advance

[lingol]

You should initialize MMKV in the main thread.
Otherwise, chances are you might get the first MMKV instance in a child thread, and that will trigger a runtime warning about accessing UIKit properties in child threads.