Hello! Why you guys observe URL changes through KVO?

[Calvin-Huang]

I'm just curious about why use KVO instead of trigger observer from webView delegate implement.
My friends always said: RxSwift is slow because Swift bridges to Objc.

And I found a issue and PR attempt to put this function into RxCocoa.
Why the code is not in the repo anymore?
issue-838

I'm still wondering about which way is better.

Thanks for your answer !!

[daichiro]

Hi @Calvin-Huang ,
I have no idea about which is better because I have never compare KVO and delegate.

Now RxWebKit uses KVO.
The reason is it is easy way to implement URL observing.

By the way I want to observe WKWebViewDelegate using RxSwift in the future 😀