Fix for iOS 11.3

package.json

@@ -8,7 +8,7 @@
     "url": "git+https://github.com/onderceylan/cordova-plugin-wkwebview-inputfocusfix"
   },
   "name": "cordova-plugin-wkwebview-inputfocusfix",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "Cordova plugin for fixing auto focus issue of html elements on WKWebView",
   "cordova": {
     "id": "cordova-plugin-wkwebview-inputfocusfix",
@@ -32,4 +32,4 @@
       }
     }
   }
-}
+}

src/ios/CDVWKWebViewEngine+InputFocusFix.m

@@ -1,4 +1,5 @@
 #import "CDVWKWebViewEngine+InputFocusFix.h"
+#import <objc/runtime.h>
 
 @implementation CDVWKWebViewEngine (InputFocusFix)
 + (void) load {
@@ -17,14 +18,27 @@ - (void) swizzleWKContentViewForInputFocus {
 }
 
 // https://github.com/Telerik-Verified-Plugins/WKWebView/commit/04e8296adeb61f289f9c698045c19b62d080c7e3
+// https://stackoverflow.com/a/48623286/3297914
 - (void) keyboardDisplayDoesNotRequireUserAction {
-    SEL sel = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:userObject:");
-    Class WKContentView = NSClassFromString(@"WKContentView");
-    Method method = class_getInstanceMethod(WKContentView, sel);
-    IMP originalImp = method_getImplementation(method);
-    IMP imp = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, id arg3) {
-        ((void (*)(id, SEL, void*, BOOL, BOOL, id))originalImp)(me, sel, arg0, TRUE, arg2, arg3);
-    });
-    method_setImplementation(method, imp);
+    Class class = NSClassFromString(@"WKContentView");
+    NSOperatingSystemVersion iOS_11_3_0 = (NSOperatingSystemVersion){11, 3, 0};
+
+    if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion: iOS_11_3_0]) {
+        SEL selector = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:changingActivityState:userObject:");
+        Method method = class_getInstanceMethod(class, selector);
+        IMP original = method_getImplementation(method);
+        IMP override = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, BOOL arg3, id arg4) {
+            ((void (*)(id, SEL, void*, BOOL, BOOL, BOOL, id))original)(me, selector, arg0, TRUE, arg2, arg3, arg4);
+        });
+        method_setImplementation(method, override);
+    } else {
+        SEL selector = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:userObject:");
+        Method method = class_getInstanceMethod(class, selector);
+        IMP original = method_getImplementation(method);
+        IMP override = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, id arg3) {
+            ((void (*)(id, SEL, void*, BOOL, BOOL, id))original)(me, selector, arg0, TRUE, arg2, arg3);
+        });
+        method_setImplementation(method, override);
+    }
 }
-@end
+@end