fixing a problem in safari webview and adding tabs to examples

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 .dart_tool/
 
+.vscode/
 .packages
 .pub/
 pubspec.lock

example/lib/chrome_safari_example.screen.dart

@@ -0,0 +1,46 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_inappbrowser/flutter_inappbrowser.dart';
+
+class MyChromeSafariBrowser extends ChromeSafariBrowser {
+  MyChromeSafariBrowser(browserFallback) : super(browserFallback);
+  @override
+  void onOpened() {
+    print("ChromeSafari browser opened");
+  }
+
+  @override
+  void onLoaded() {
+    print("ChromeSafari browser loaded");
+  }
+
+  @override
+  void onClosed() {
+    print("ChromeSafari browser closed");
+  }
+}
+
+class ChromeSafariExampleScreen extends StatefulWidget {
+  final ChromeSafariBrowser browser = new MyChromeSafariBrowser(new InAppBrowser());
+  @override
+  _ChromeSafariExampleScreenState createState() => new _ChromeSafariExampleScreenState();
+}
+
+class _ChromeSafariExampleScreenState extends State<ChromeSafariExampleScreen> {
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return new Center(
+      child: new RaisedButton(
+          onPressed: () async {
+            await widget.browser.open("https://flutter.io/");
+          },
+          child: Text("Open Chrome Safari Browser")),
+    );
+  }
+}

example/lib/inline_example.screen.dart

@@ -0,0 +1,95 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_inappbrowser/flutter_inappbrowser.dart';
+
+class InlineExampleScreen extends StatefulWidget {
+  @override
+  _InlineExampleScreenState createState() => new _InlineExampleScreenState();
+}
+
+class _InlineExampleScreenState extends State<InlineExampleScreen> {
+  InAppWebViewController webView;
+  String url = "";
+  double progress = 0;
+
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+        child: Column(children: <Widget>[
+      Container(
+        padding: EdgeInsets.all(20.0),
+        child: Text(
+            "CURRENT URL\n${(url.length > 50) ? url.substring(0, 50) + "..." : url}"),
+      ),
+      Container( 
+        padding: EdgeInsets.all(10.0),
+        child: progress < 1.0 ? LinearProgressIndicator(value: progress) : null
+      ),
+      Expanded(
+        child: Container(
+          margin: const EdgeInsets.all(10.0),
+          decoration:
+              BoxDecoration(border: Border.all(color: Colors.blueAccent)),
+          child: InAppWebView(
+            initialUrl: "https://flutter.io/",
+            initialHeaders: {},
+            initialOptions: {},
+            onWebViewCreated: (InAppWebViewController controller) {
+              webView = controller;
+            },
+            onLoadStart: (InAppWebViewController controller, String url) {
+              print("started $url");
+              setState(() {
+                this.url = url;
+              });
+            },
+            onProgressChanged:
+                (InAppWebViewController controller, int progress) {
+              setState(() {
+                this.progress = progress / 100;
+              });
+            },
+          ),
+        ),
+      ),
+      ButtonBar(
+        alignment: MainAxisAlignment.center,
+        children: <Widget>[
+          RaisedButton(
+            child: Icon(Icons.arrow_back),
+            onPressed: () {
+              if (webView != null) {
+                webView.goBack();
+              }
+            },
+          ),
+          RaisedButton(
+            child: Icon(Icons.arrow_forward),
+            onPressed: () {
+              if (webView != null) {
+                webView.goForward();
+              }
+            },
+          ),
+          RaisedButton(
+            child: Icon(Icons.refresh),
+            onPressed: () {
+              if (webView != null) {
+                webView.reload();
+              }
+            },
+          ),
+        ],
+      ),
+    ]));
+  }
+}