Updated readme

Author: matthewtsmith

README.md

@@ -9,6 +9,7 @@ Features
  - [x] Listen for Redirects
  - [x] Add buttons to a navigation bar
  - [x] Receive call backs for nav buttons pressed
+ - [x] WebView loading callbacks
  - [x] Supports custom nav bar & button colors ( ios only for now )
  - [ ] Advanced nav bar support ( position , enable, disable buttons )
  - [ ] Support for nav bar icon buttons
@@ -26,3 +27,42 @@ To use on Android, make sure to add the the following in your AndroidManifest.xm
 <activity android:name="com.apptreesoftware.flutterwebview.WebViewActivity">
 </activity>
 ```
+
+### Example Usage
+
+```
+flutterWebView.launch(
+        "https://apptreesoftware.com",
+        headers: {
+          "X-SOME-HEADER": "MyCustomHeader",
+        },
+        javaScriptEnabled: false,
+        toolbarActions: [
+          new ToolbarAction("Dismiss", 1),
+          new ToolbarAction("Reload", 2)
+        ],
+        barColor: Colors.green,
+        tintColor: Colors.white);
+    flutterWebView.onToolbarAction.listen((identifier) {
+      switch (identifier) {
+        case 1:
+          flutterWebView.dismiss();
+          break;
+        case 2:
+          reload();
+          break;
+      }
+    });
+    flutterWebView.listenForRedirect("mobile://test.com", true);
+
+    flutterWebView.onWebViewDidStartLoading.listen((url) {
+      setState(() => _isLoading = true);
+    });
+    flutterWebView.onWebViewDidLoad.listen((url) {
+      setState(() => _isLoading = false);
+    });
+    flutterWebView.onRedirect.listen((url) {
+      flutterWebView.dismiss();
+      setState(() => _redirectedToUrl = url);
+    });
+```

example/lib/main.dart

@@ -51,8 +51,7 @@ class _MyAppState extends State<MyApp> {
       return;
     }
 
-    flutterWebView.launch(
-        "https://apptreesoftware.com",
+    flutterWebView.launch("https://apptreesoftware.com",
         headers: {
           "X-SOME-HEADER": "MyCustomHeader",
         },
@@ -74,6 +73,7 @@ class _MyAppState extends State<MyApp> {
       }
     });
     flutterWebView.listenForRedirect("mobile://test.com", true);
+
     flutterWebView.onWebViewDidStartLoading.listen((url) {
       setState(() => _isLoading = true);
     });
@@ -88,10 +88,10 @@ class _MyAppState extends State<MyApp> {
 
   void reload() {
     flutterWebView.load(
-        "https://google.com",
-        headers: {
+      "https://google.com",
+      headers: {
         "X-SOME-HEADER": "MyCustomHeader",
-        },
+      },
     );
   }
 }