webview_flutter version upgrade and linter fixes

example/ios/Podfile

@@ -0,0 +1,41 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '11.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

example/lib/main.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import 'webview_page.dart';
+import 'package:webviewx_example/webview_page.dart';
 
 void main() {
   runApp(const MyApp());

example/lib/webview_page.dart

@@ -3,15 +3,15 @@ import 'dart:math';
 import 'package:flutter/material.dart';
 import 'package:webviewx/webviewx.dart';
 
-import 'helpers.dart';
+import 'package:webviewx_example/helpers.dart';
 
 class WebViewXPage extends StatefulWidget {
   const WebViewXPage({
     Key? key,
   }) : super(key: key);
 
   @override
-  _WebViewXPageState createState() => _WebViewXPageState();
+  State<WebViewXPage> createState() => _WebViewXPageState();
 }
 
 class _WebViewXPageState extends State<WebViewXPage> {
@@ -47,19 +47,19 @@ class _WebViewXPageState extends State<WebViewXPage> {
                 padding: const EdgeInsets.only(bottom: 20.0),
                 child: Text(
                   'Play around with the buttons below',
-                  style: Theme.of(context).textTheme.headline6,
+                  style: Theme.of(context).textTheme.titleLarge,
                 ),
               ),
               buildSpace(direction: Axis.vertical, amount: 10.0, flex: false),
-              Container(
+              DecoratedBox(
                 decoration: BoxDecoration(
                   border: Border.all(width: 0.2),
                 ),
                 child: _buildWebViewX(),
               ),
               Expanded(
                 child: Scrollbar(
-                  isAlwaysShown: true,
+                  thumbVisibility: true,
                   child: SizedBox(
                     width: min(screenSize.width * 0.8, 512),
                     child: ListView(
@@ -102,7 +102,7 @@ class _WebViewXPageState extends State<WebViewXPage> {
         DartCallback(
           name: 'TestDartCallback',
           callBack: (msg) => showSnackBar(msg.toString(), context),
-        )
+        ),
       },
       webSpecificParams: const WebSpecificParams(
         printDebugInfo: true,