Add section about how to use Material components in an app using WebView (flutter#3521)

Author: Emmanuel Garcia

packages/webview_flutter/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.0-nullsafety.5
+
+* Add section to the wiki explaining how to use Material components.
+
 ## 2.0.0-nullsafety.4
 
 * Update integration test to workaround an iOS 14 issue with `evaluateJavascript`.

packages/webview_flutter/README.md

@@ -14,8 +14,6 @@ You can now include a WebView widget in your widget tree. See the
 [WebView](https://pub.dev/documentation/webview_flutter/latest/webview_flutter/WebView-class.html)
 widget's Dartdoc for more details on how to use the widget.
 
-
-
 ## Android Platform Views
 The WebView is relying on
 [Platform Views](https://flutter.dev/docs/development/platform-integration/platform-views) to embed
@@ -66,5 +64,10 @@ android {
         // Required by the Flutter WebView plugin.
         minSdkVersion 19
     }
-  }
+}
 ```
+
+#### Enable Material Components for Android
+
+To use Material Components when the user interacts with input elements in the WebView,
+follow the steps described in the [Enabling Material Components instructions](https://flutter.dev/docs/deployment/android#enabling-material-components).

packages/webview_flutter/pubspec.yaml

@@ -1,6 +1,6 @@
 name: webview_flutter
 description: A Flutter plugin that provides a WebView widget on Android and iOS.
-version: 2.0.0-nullsafety.4
+version: 2.0.0-nullsafety.5
 homepage: https://github.com/flutter/plugins/tree/master/packages/webview_flutter
 
 environment: