title: Google Maps flutter Gestures are not working inside stack
body: <p>I am using  google_maps_flutter. My widget tree is Scaffold -&gt; SingleChildScrollView -&gt; Stack and then  google map. I am unable to zoom in and zoom out using gestures.</p>
  <pre><code>SingleChildScrollView( Stack(
              children: &lt;Widget&gt;[
                Container(
                  height: MediaQuery.of(context).size.height - 10.0,
                  width: MediaQuery.of(context).size.width * 1,
                  child: _mapView
                      ? GoogleMap(
                          initialCameraPosition: CameraPosition(
                              target: _outletData[0].locationCoords, zoom: 12.0),
                          markers: Set.from(allMarkers),
                          onMapCreated: mapCreated,
                          zoomControlsEnabled: false,
                          zoomGesturesEnabled: true,
                          scrollGesturesEnabled: true,
                          compassEnabled: true,
                          rotateGesturesEnabled: true,
                          mapToolbarEnabled: true,
                          tiltGesturesEnabled: true,
                         
                        )
                      : Container(),
                ),
  </code></pre>
  <p>I also tried below code but still unable to zoom in zoom out using two finger touch</p>
  <pre><code>Stack(
              children: &lt;Widget&gt;[
                Container(
                  height: MediaQuery.of(context).size.height - 10.0,
                  width: MediaQuery.of(context).size.width * 1,
                  child: _mapView
                      ? GoogleMap(
                          initialCameraPosition: CameraPosition(
                              target: _outletData[0].locationCoords, zoom: 12.0),
                          markers: Set.from(allMarkers),
                          onMapCreated: mapCreated,
                          zoomControlsEnabled: false,
                          zoomGesturesEnabled: true,
                          scrollGesturesEnabled: true,
                          compassEnabled: true,
                          rotateGesturesEnabled: true,
                          mapToolbarEnabled: true,
                          tiltGesturesEnabled: true,
                          gestureRecognizers: Set()
                            ..add(Factory&lt;PanGestureRecognizer&gt;(
                                () =&gt; PanGestureRecognizer()))
                            ..add(Factory&lt;ScaleGestureRecognizer&gt;(
                                () =&gt; ScaleGestureRecognizer()))
                            ..add(Factory&lt;TapGestureRecognizer&gt;(
                                () =&gt; TapGestureRecognizer()))
                            ..add(
                              Factory&lt;VerticalDragGestureRecognizer&gt;(
                                  () =&gt; VerticalDragGestureRecognizer()),
                            ),
                        )
                      : Container(),
                ),
  </code></pre>