Hey guys! On our company, we are developing an SDK...

# kotlin-native

[Christian Sousa]

Hey guys!
On our company, we are developing an SDK using KMP, and on iOS, we have some clients that are afraid of the deprecation of UIWebView that Apple announced: https://developer.apple.com/news/?id=12232019b

Running the following command on our binary

for framework in Frameworks/*.framework; do
  fname=$(basename $framework .framework)
  echo $fname
  nm $framework/$fname | grep UIWebView
done

We get the following output:

0000000000990190 s __OBJC_LABEL_PROTOCOL_$_UIWebViewDelegate
00000000009e64a0 d __OBJC_PROTOCOL_$_UIWebViewDelegate

Which means that our SDK does have references to UIWebViewDelegate, but this is not in use and this is a potential roadblocker for every iOS app integrating the SDK.

Also, when trying to upload a sample app we get the warning about the usage of UIWebView .

As far as I can understand, the interop lib includes these references for legacy reasons or something like that.

What would be our best solution for this issue? Or are there any plans on removing the UIWebView from the KMP Lib?

Thanks a lot! 🙂

[svyatoslav.scherbina]

Hi.

Also, when trying to upload a sample app we get the warning about the usage of UIWebView.

Could you please share the exact warning message?

Which means that our SDK does have references to UIWebViewDelegate

Apple doesn’t mention this protocol in their announcement. Are you sure this warning is caused by references to UIWebViewDelegate? It is not even deprecated: https://developer.apple.com/documentation/uikit/uiwebviewdelegate?language=objc

[svyatoslav.scherbina]

@Christian Sousa my experiments show that UIWebViewDelegate doesn’t cause any problems.
Adding UIWebView does cause validation failure. But Kotlin-produced frameworks don’t have it unless you explicitly use it.
So, without more information from you (for example, exact message from Apple) I can’t advice you any solution at all.