[iOS] Convert UIWebView -> WKWebView

[southerneer]

From Apple automated email:

We identified one or more issues with a recent delivery for your app, "tinyrobotStaging" 4.22.0 (2772). Your delivery was successful, but you may wish to correct the following issues in your next delivery:

ITMS-90809: Deprecated API Usage - Apple will stop accepting submissions of apps that use UIWebView APIs . See https://developer.apple.com/documentation/uikit/uiwebview for more information.

I don't think we use WebView directly in our code, but it's probably buried in a dependency.

[aksonov]

First, it is warning, so we don't have problem now.

I found two modules use UIWebView to solve this problem for our next version:

1. React - RN0.59 uses UIWebView, so we must upgrade to RN0.60. I checked that RN0.60 doesn't have this dependency
2. react-native-device-info, even latest version (2.3.2), uses it, but new version (3.0.0) with required fix will come soon:
   [FIXED, RELEASE IN V3.0.0] UIWebView iOS Deprecated API Usage Warning ITMS-90809 react-native-device-info/react-native-device-info#756

[aksonov]

I've found that this issue is NOT trivial anymore - DeviceInfo from 3.0 uses async API and we need to change many places.. (as I understand it happens because of async nature of WKWebView API)

[bengtan]

Not QA-able. bengtan to monitor.

[aksonov]

Ugh, looks like Firebase still uses UIWebView (FirebaseDynamicLinks?):
invertase/react-native-firebase#2535
firebase/firebase-ios-sdk#3722

[southerneer]

Ah ok, at least if it's on Firebase to update (as opposed to rn-firebase) then we're probably ok. I would imagine they would have to update that within the next couple weeks. invertase/react-native-firebase#2535 (comment).

Also, this is an App Store warning, not a fail. They'll keep accepting these submissions for now

UIWebView is deprecated but not removed on iOS 12 and is (apparently) also not removed on iOS 13 betas that have started trickling out.

[bengtan]

I guess we're gonna have to wait.

[bengtan]

I was just reading invertase/react-native-firebase#2535

As I interpret it ... I think the fix is to update the some firebase pod to 6.8.1 or newer (the latest is 6.9.0)? We're currently using 6.6.0.

https://firebase.google.com/support/release-notes/ios#version_681_-_september_10_2019

[bengtan]

I didn't see an email from Apple/TestFlight after the 4.27.0 release so I think this is resolved.