Fix tooltip

Runtime/material/tooltip.cs

             }
         }
 
-        bool ensureTooltopVisible() {
+        bool ensureTooltipVisible() {
             if (this._entry != null) {
                 this._timer?.cancel();
                 this._timer = null;
         }
 
         void _handleLongPress() {
+            bool tooltipCreated = this.ensureTooltipVisible();
+            if (tooltipCreated)
+                Feedback.forLongPress(this.context);
         }
 
 

Runtime/material/feedback.cs

+using RSG;
+using Unity.UIWidgets.gestures;
+using Unity.UIWidgets.widgets;
+using UnityEngine;
+
+namespace Unity.UIWidgets.material {
+    public class Feedback {
+        Feedback() {
+        }
+
+        public static IPromise forTap(BuildContext context) {
+            switch (_platform(context)) {
+                case RuntimePlatform.Android:
+                    return
+                        Promise.Resolved(); // SystemSound.play(SystemSoundType.click); TODO: replace with unity equivalent
+                default:
+                    return Promise.Resolved();
+            }
+        }
+
+        public static GestureTapCallback wrapForTap(GestureTapCallback callback, BuildContext context) {
+            if (callback == null) {
+                return null;
+            }
+
+            return () => {
+                forTap(context);
+                callback();
+            };
+        }
+
+        public static IPromise forLongPress(BuildContext context) {
+            switch (_platform(context)) {
+                case RuntimePlatform.Android:
+                    return Promise.Resolved(); // HapticFeedback.vibrate(); TODO
+                default:
+                    return Promise.Resolved();
+            }
+        }
+
+        public static GestureLongPressCallback
+            wrapForLongPress(GestureLongPressCallback callback, BuildContext context) {
+            if (callback == null) {
+                return null;
+            }
+
+            return () => {
+                forLongPress(context);
+                callback();
+            };
+        }
+
+        static RuntimePlatform _platform(BuildContext context) {
+            return Theme.of(context).platform;
+        }
+    }
+}

Runtime/material/feedback.cs.meta

+fileFormatVersion: 2
+guid: 40b01a32a0bc4afc9de46b001ebd9b99
+timeCreated: 1554815981