https://github.com/WebKit/webkit/commit/ec5ad1bd1bae03e0f85e4415e018ea5d09e046c1
2019-09-06 Darryl Pogue <[email protected]>
REGRESSION(iOS 12): Keyboard dismissal leaves WKWebView viewport-fit=cover content offscreen
https://bugs.webkit.org/show_bug.cgi?id=192564
Reviewed by Tim Horton.
The new keyboard height was being read into a variable after the scrollview had already been
adjusted. This worked when the keyboard was opening, because the scrollview is adjusted with
the correct value a second time when the keyboard animation has finished. However, when the
keyboard is closed, the adjustment was being made before the correct height was stored,
leading to the scrollview being positioned as if the keyboard were still open.
* UIProcess/ios/WKScrollView.mm:
(-[WKScrollView _adjustForAutomaticKeyboardInfo:animated:lastAdjustment:]):
Before:
After add this patch:
npm install
npm run build
npm add patch-ios12-webview-keyboard --save
import 'patch-ios12-webview-keyboard';
or just copy node_modules\patch-ios12-webview-keyboard\dist\patch-ios12-webview-keyboard.min.js and add to your html file.
<script src='{{resDomain}}js/patch-ios12-webview-keyboard.min.js'></script>