Exemplified usage of of fullscreen flag . Resolves #5

Author: wilburx9

example/lib/main.dart

@@ -148,67 +148,67 @@ class _HomePageState extends State<HomePage> {
                 _verticalSizeBox,
                 _inProgress
                     ? new Container(
-                  alignment: Alignment.center,
-                  height: 50.0,
-                  child: Platform.isIOS
-                      ? new CupertinoActivityIndicator()
-                      : new CircularProgressIndicator(),
-                )
+                        alignment: Alignment.center,
+                        height: 50.0,
+                        child: Platform.isIOS
+                            ? new CupertinoActivityIndicator()
+                            : new CircularProgressIndicator(),
+                      )
                     : new Column(
-                  mainAxisSize: MainAxisSize.min,
-                  children: <Widget>[
-                    _getPlatformButton(
-                        'Charge Card', () => _startAfreshCharge()),
-                    _verticalSizeBox,
-                    _border,
-                    new SizedBox(
-                      height: 40.0,
-                    ),
-                    new Row(
-                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                      crossAxisAlignment: CrossAxisAlignment.center,
-                      children: <Widget>[
-                        new Flexible(
-                            flex: 3,
-                            child: new DropdownButtonHideUnderline(
-                                child: new InputDecorator(
-                                  decoration: const InputDecoration(
-                                    border: OutlineInputBorder(),
-                                    isDense: true,
-                                    hintText: 'Checkout method',
-                                  ),
-                                  isEmpty: _method == null,
-                                  child: new DropdownButton<CheckoutMethod>(
-                                    value: _method,
-                                    isDense: true,
-                                    onChanged: (CheckoutMethod value) {
-                                      setState(() {
-                                        _method = value;
-                                      });
-                                    },
-                                    items: banks.map((String value) {
-                                      return new DropdownMenuItem<
-                                          CheckoutMethod>(
-                                        value: _parseStringToMethod(value),
-                                        child: new Text(value),
-                                      );
-                                    }).toList(),
-                                  ),
-                                ))),
-                        _horizontalSizeBox,
-                        new Flexible(
-                          flex: 2,
-                          child: new Container(
-                              width: double.infinity,
-                              child: _getPlatformButton(
-                                'Checkout',
-                                    () => _handleCheckout(),
-                              )),
-                        ),
-                      ],
-                    )
-                  ],
-                )
+                        mainAxisSize: MainAxisSize.min,
+                        children: <Widget>[
+                          _getPlatformButton(
+                              'Charge Card', () => _startAfreshCharge()),
+                          _verticalSizeBox,
+                          _border,
+                          new SizedBox(
+                            height: 40.0,
+                          ),
+                          new Row(
+                            mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                            crossAxisAlignment: CrossAxisAlignment.center,
+                            children: <Widget>[
+                              new Flexible(
+                                  flex: 3,
+                                  child: new DropdownButtonHideUnderline(
+                                      child: new InputDecorator(
+                                    decoration: const InputDecoration(
+                                      border: OutlineInputBorder(),
+                                      isDense: true,
+                                      hintText: 'Checkout method',
+                                    ),
+                                    isEmpty: _method == null,
+                                    child: new DropdownButton<CheckoutMethod>(
+                                      value: _method,
+                                      isDense: true,
+                                      onChanged: (CheckoutMethod value) {
+                                        setState(() {
+                                          _method = value;
+                                        });
+                                      },
+                                      items: banks.map((String value) {
+                                        return new DropdownMenuItem<
+                                            CheckoutMethod>(
+                                          value: _parseStringToMethod(value),
+                                          child: new Text(value),
+                                        );
+                                      }).toList(),
+                                    ),
+                                  ))),
+                              _horizontalSizeBox,
+                              new Flexible(
+                                flex: 2,
+                                child: new Container(
+                                    width: double.infinity,
+                                    child: _getPlatformButton(
+                                      'Checkout',
+                                      () => _handleCheckout(),
+                                    )),
+                              ),
+                            ],
+                          )
+                        ],
+                      )
               ],
             ),
           ),
@@ -242,11 +242,8 @@ class _HomePageState extends State<HomePage> {
       }
     }
 
-    CheckoutResponse response = await PaystackPlugin.checkout(
-      context,
-      method: _method,
-      charge: charge,
-    );
+    CheckoutResponse response = await PaystackPlugin.checkout(context,
+        method: _method, charge: charge, fullscreen: false);
     print('Response = $response');
     setState(() => _inProgress = false);
     _updateStatus(response.reference, '$response');
@@ -399,7 +396,7 @@ class _HomePageState extends State<HomePage> {
       _updateStatus(
           reference,
           'There was a problem getting a new access code form'
-              ' the backend: $e');
+          ' the backend: $e');
     }
     return accessCode;
   }
@@ -415,7 +412,7 @@ class _HomePageState extends State<HomePage> {
       _updateStatus(
           reference,
           'There was a problem verifying %s on the backend: '
-              '$reference $e');
+          '$reference $e');
     }
     setState(() => _inProgress = false);
   }