Fix(#441) add allowed pointer (#445)

* Fix(#441) add allowed pointer

* shame on me

Author: renancaraujo

example/pubspec.lock

@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0"
+    version: "2.7.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -28,7 +28,7 @@ packages:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
   clock:
     dependency: transitive
     description:
@@ -80,7 +80,7 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.7.0"
   path:
     dependency: transitive
     description:
@@ -127,7 +127,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
@@ -162,7 +162,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.19"
+    version: "0.4.2"
   typed_data:
     dependency: transitive
     description:

lib/src/core/photo_view_core.dart

@@ -42,7 +42,7 @@ class PhotoViewCore extends StatefulWidget {
     required this.filterQuality,
     required this.disableGestures,
     required this.enablePanAlways,
-  })   : customChild = null,
+  })  : customChild = null,
         super(key: key);
 
   const PhotoViewCore.customChild({
@@ -64,7 +64,7 @@ class PhotoViewCore extends StatefulWidget {
     required this.filterQuality,
     required this.disableGestures,
     required this.enablePanAlways,
-  })   : imageProvider = null,
+  })  : imageProvider = null,
         gaplessPlayback = false,
         super(key: key);
 

lib/src/core/photo_view_gesture_detector.dart

@@ -98,7 +98,7 @@ class PhotoViewGestureRecognizer extends ScaleGestureRecognizer {
   bool ready = true;
 
   @override
-  void addAllowedPointer(PointerEvent event) {
+  void addAllowedPointer(event) {
     if (ready) {
       ready = false;
       _pointerLocations = <int, Offset>{};