Load navigation controls immediately.

Make sure the navigation controls in the example App are loaded
immediately but only enable when the WebViewController is available.
This is the same behavior as in the example App from the main
webview_flutter package.

Author: mvanbeusekom

packages/webview_flutter/webview_flutter_wkwebview/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.14
+
+* Update example App so navigation menu loads immediatly but only becomes available when `WebViewController` is available (same behavior as example App in webview_flutter package). 
+
 ## 2.0.13
 
 * Extract WKWebView implementation from `webview_flutter`.

packages/webview_flutter/webview_flutter_wkwebview/example/lib/main.dart

@@ -289,15 +289,15 @@ class _NavigationControls extends StatelessWidget {
         final bool webViewReady =
             snapshot.connectionState == ConnectionState.done;
         final WebViewController? controller = snapshot.data;
-        if (controller == null) return Container();
+
         return Row(
           children: <Widget>[
             IconButton(
               icon: const Icon(Icons.arrow_back_ios),
               onPressed: !webViewReady
                   ? null
                   : () async {
-                      if (await controller.canGoBack()) {
+                      if (await controller!.canGoBack()) {
                         await controller.goBack();
                       } else {
                         // ignore: deprecated_member_use
@@ -313,7 +313,7 @@ class _NavigationControls extends StatelessWidget {
               onPressed: !webViewReady
                   ? null
                   : () async {
-                      if (await controller.canGoForward()) {
+                      if (await controller!.canGoForward()) {
                         await controller.goForward();
                       } else {
                         // ignore: deprecated_member_use
@@ -330,7 +330,7 @@ class _NavigationControls extends StatelessWidget {
               onPressed: !webViewReady
                   ? null
                   : () {
-                      controller.reload();
+                      controller!.reload();
                     },
             ),
           ],

packages/webview_flutter/webview_flutter_wkwebview/pubspec.yaml

@@ -2,7 +2,7 @@ name: webview_flutter_wkwebview
 description: A Flutter plugin that provides a WebView widget based on Apple's WKWebView control.
 repository: https://github.com/flutter/plugins/tree/master/packages/webview_flutter/webview_flutter_wkwebview
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 2.0.13
+version: 2.0.14
 
 environment:
   sdk: ">=2.14.0 <3.0.0"