[iOS] Add numberOfPointers to Native gesture events (#4023)

m-bert · Copilot · m-bert · commit e7e8506d9fa9 · 2026-04-02T12:42:43.000+02:00
`numberOfPointers` was not included in `Native` gesture events on `iOS`.
This PR fixes this problem.

I've also run `yarn format:apple` to fix formatting.

Tested on expo-example (logging events from `RectButton` on main screen)

---------

Co-authored-by: Copilot Autofix powered by AI &lt;175728472+Copilot@users.noreply.github.com&gt;
diff --git a/packages/react-native-gesture-handler/apple/Handlers/RNHoverHandler.m b/packages/react-native-gesture-handler/apple/Handlers/RNHoverHandler.m
@@ -220,21 +220,29 @@ - (void)mouseEntered:(NSEvent *)event
 {
   [self sendEventsInState:RNGestureHandlerStateBegan
            forViewWithTag:_view.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES
+                                                       withNumberOfTouches:1
+                                                           withPointerType:_pointerType]];
   [self sendEventsInState:RNGestureHandlerStateActive
            forViewWithTag:_view.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES
+                                                       withNumberOfTouches:1
+                                                           withPointerType:_pointerType]];
 }
 
 - (void)mouseExited:(NSEvent *)theEvent
 {
   [self sendEventsInState:RNGestureHandlerStateEnd
            forViewWithTag:_view.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO
+                                                       withNumberOfTouches:1
+                                                           withPointerType:_pointerType]];
 
   [self sendEventsInState:RNGestureHandlerStateUndetermined
            forViewWithTag:_view.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO
+                                                       withNumberOfTouches:1
+                                                           withPointerType:_pointerType]];
 }
 
 @end
diff --git a/packages/react-native-gesture-handler/apple/Handlers/RNNativeViewHandler.mm b/packages/react-native-gesture-handler/apple/Handlers/RNNativeViewHandler.mm
@@ -182,21 +182,27 @@ - (void)handleTouchDown:(UIView *)sender forEvent:(UIEvent *)event
 
   [self sendEventsInState:RNGestureHandlerStateActive
            forViewWithTag:sender.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES
+                                                       withNumberOfTouches:event.allTouches.count
+                                                           withPointerType:_pointerType]];
 }
 
 - (void)handleTouchUpOutside:(UIView *)sender forEvent:(UIEvent *)event
 {
   [self sendEventsInState:RNGestureHandlerStateEnd
            forViewWithTag:sender.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO
+                                                       withNumberOfTouches:event.allTouches.count
+                                                           withPointerType:_pointerType]];
 }
 
 - (void)handleTouchUpInside:(UIView *)sender forEvent:(UIEvent *)event
 {
   [self sendEventsInState:RNGestureHandlerStateEnd
            forViewWithTag:sender.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES
+                                                       withNumberOfTouches:event.allTouches.count
+                                                           withPointerType:_pointerType]];
 }
 
 - (void)handleDragExit:(UIView *)sender forEvent:(UIEvent *)event
@@ -207,33 +213,42 @@ - (void)handleDragExit:(UIView *)sender forEvent:(UIEvent *)event
     [control cancelTrackingWithEvent:event];
     [self sendEventsInState:RNGestureHandlerStateEnd
              forViewWithTag:sender.reactTag
-              withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];
+              withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO
+                                                         withNumberOfTouches:event.allTouches.count
+                                                             withPointerType:_pointerType]];
   } else {
     [self sendEventsInState:RNGestureHandlerStateActive
              forViewWithTag:sender.reactTag
-              withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];
+              withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO
+                                                         withNumberOfTouches:event.allTouches.count
+                                                             withPointerType:_pointerType]];
   }
 }
 
 - (void)handleDragEnter:(UIView *)sender forEvent:(UIEvent *)event
 {
   [self sendEventsInState:RNGestureHandlerStateActive
            forViewWithTag:sender.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES
+                                                       withNumberOfTouches:event.allTouches.count
+                                                           withPointerType:_pointerType]];
 }
 
 - (void)handleTouchCancel:(UIView *)sender forEvent:(UIEvent *)event
 {
   [self sendEventsInState:RNGestureHandlerStateCancelled
            forViewWithTag:sender.reactTag
-            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];
+            withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO
+                                                       withNumberOfTouches:event.allTouches.count
+                                                           withPointerType:_pointerType]];
 }
 
 #else
 
 - (RNGestureHandlerEventExtraData *)eventExtraData:(RNDummyGestureRecognizer *)recognizer
 {
   return [RNGestureHandlerEventExtraData forPointerInside:[self containsPointInView]
+                                      withNumberOfTouches:1
                                           withPointerType:RNGestureHandlerMouse];
 }
 
diff --git a/packages/react-native-gesture-handler/apple/RNGestureHandlerEvents.h b/packages/react-native-gesture-handler/apple/RNGestureHandlerEvents.h
@@ -52,7 +52,9 @@
                                  withAllPointers:(NSArray<NSDictionary *> *)allPointers
                              withNumberOfTouches:(NSUInteger)numberOfTouches
                                  withPointerType:(NSInteger)pointerType;
-+ (RNGestureHandlerEventExtraData *)forPointerInside:(BOOL)pointerInside withPointerType:(NSInteger)pointerType;
++ (RNGestureHandlerEventExtraData *)forPointerInside:(BOOL)pointerInside
+                                 withNumberOfTouches:(NSUInteger)numberOfTouches
+                                     withPointerType:(NSInteger)pointerType;
 @end
 
 @interface RNGestureHandlerEvent : NSObject <RCTEvent>
diff --git a/packages/react-native-gesture-handler/apple/RNGestureHandlerEvents.m b/packages/react-native-gesture-handler/apple/RNGestureHandlerEvents.m
@@ -156,10 +156,15 @@ + (RNGestureHandlerEventExtraData *)forEventType:(RNGHTouchEventType)eventType
   }];
 }
 
-+ (RNGestureHandlerEventExtraData *)forPointerInside:(BOOL)pointerInside withPointerType:(NSInteger)pointerType
++ (RNGestureHandlerEventExtraData *)forPointerInside:(BOOL)pointerInside
+                                 withNumberOfTouches:(NSUInteger)numberOfTouches
+                                     withPointerType:(NSInteger)pointerType
 {
-  return [[RNGestureHandlerEventExtraData alloc]
-      initWithData:@{@"pointerInside" : @(pointerInside), @"pointerType" : @(pointerType)}];
+  return [[RNGestureHandlerEventExtraData alloc] initWithData:@{
+    @"pointerInside" : @(pointerInside),
+    @"numberOfPointers" : @(numberOfTouches),
+    @"pointerType" : @(pointerType)
+  }];
 }
 
 @end

Original file line number	Diff line number	Diff line change
`@@ -182,21 +182,27 @@ - (void)handleTouchDown:(UIView )sender forEvent:(UIEvent )event`
`182`	`182`
`183`	`183`	`[self sendEventsInState:RNGestureHandlerStateActive`
`184`	`184`	`forViewWithTag:sender.reactTag`
`185`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];`
	`185`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES`
	`186`	`+ withNumberOfTouches:event.allTouches.count`
	`187`	`+ withPointerType:_pointerType]];`
`186`	`188`	`}`
`187`	`189`
`188`	`190`	`- (void)handleTouchUpOutside:(UIView )sender forEvent:(UIEvent )event`
`189`	`191`	`{`
`190`	`192`	`[self sendEventsInState:RNGestureHandlerStateEnd`
`191`	`193`	`forViewWithTag:sender.reactTag`
`192`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];`
	`194`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO`
	`195`	`+ withNumberOfTouches:event.allTouches.count`
	`196`	`+ withPointerType:_pointerType]];`
`193`	`197`	`}`
`194`	`198`
`195`	`199`	`- (void)handleTouchUpInside:(UIView )sender forEvent:(UIEvent )event`
`196`	`200`	`{`
`197`	`201`	`[self sendEventsInState:RNGestureHandlerStateEnd`
`198`	`202`	`forViewWithTag:sender.reactTag`
`199`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];`
	`203`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES`
	`204`	`+ withNumberOfTouches:event.allTouches.count`
	`205`	`+ withPointerType:_pointerType]];`
`200`	`206`	`}`
`201`	`207`
`202`	`208`	`- (void)handleDragExit:(UIView )sender forEvent:(UIEvent )event`
`@@ -207,33 +213,42 @@ - (void)handleDragExit:(UIView )sender forEvent:(UIEvent )event`
`207`	`213`	`[control cancelTrackingWithEvent:event];`
`208`	`214`	`[self sendEventsInState:RNGestureHandlerStateEnd`
`209`	`215`	`forViewWithTag:sender.reactTag`
`210`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];`
	`216`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO`
	`217`	`+ withNumberOfTouches:event.allTouches.count`
	`218`	`+ withPointerType:_pointerType]];`
`211`	`219`	`} else {`
`212`	`220`	`[self sendEventsInState:RNGestureHandlerStateActive`
`213`	`221`	`forViewWithTag:sender.reactTag`
`214`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];`
	`222`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO`
	`223`	`+ withNumberOfTouches:event.allTouches.count`
	`224`	`+ withPointerType:_pointerType]];`
`215`	`225`	`}`
`216`	`226`	`}`
`217`	`227`
`218`	`228`	`- (void)handleDragEnter:(UIView )sender forEvent:(UIEvent )event`
`219`	`229`	`{`
`220`	`230`	`[self sendEventsInState:RNGestureHandlerStateActive`
`221`	`231`	`forViewWithTag:sender.reactTag`
`222`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES withPointerType:_pointerType]];`
	`232`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:YES`
	`233`	`+ withNumberOfTouches:event.allTouches.count`
	`234`	`+ withPointerType:_pointerType]];`
`223`	`235`	`}`
`224`	`236`
`225`	`237`	`- (void)handleTouchCancel:(UIView )sender forEvent:(UIEvent )event`
`226`	`238`	`{`
`227`	`239`	`[self sendEventsInState:RNGestureHandlerStateCancelled`
`228`	`240`	`forViewWithTag:sender.reactTag`
`229`		`- withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO withPointerType:_pointerType]];`
	`241`	`+ withExtraData:[RNGestureHandlerEventExtraData forPointerInside:NO`
	`242`	`+ withNumberOfTouches:event.allTouches.count`
	`243`	`+ withPointerType:_pointerType]];`
`230`	`244`	`}`
`231`	`245`
`232`	`246`	`#else`
`233`	`247`
`234`	`248`	`- (RNGestureHandlerEventExtraData )eventExtraData:(RNDummyGestureRecognizer )recognizer`
`235`	`249`	`{`
`236`	`250`	`return [RNGestureHandlerEventExtraData forPointerInside:[self containsPointInView]`
	`251`	`+ withNumberOfTouches:1`
`237`	`252`	`withPointerType:RNGestureHandlerMouse];`
`238`	`253`	`}`
`239`	`254`
Original file line number	Diff line number	Diff line change
`@@ -156,10 +156,15 @@ + (RNGestureHandlerEventExtraData *)forEventType:(RNGHTouchEventType)eventType`
`156`	`156`	`}];`
`157`	`157`	`}`
`158`	`158`
`159`		`-+ (RNGestureHandlerEventExtraData *)forPointerInside:(BOOL)pointerInside withPointerType:(NSInteger)pointerType`
	`159`	`++ (RNGestureHandlerEventExtraData *)forPointerInside:(BOOL)pointerInside`
	`160`	`+ withNumberOfTouches:(NSUInteger)numberOfTouches`
	`161`	`+ withPointerType:(NSInteger)pointerType`
`160`	`162`	`{`
`161`		`- return [[RNGestureHandlerEventExtraData alloc]`
`162`		`- initWithData:@{@"pointerInside" : @(pointerInside), @"pointerType" : @(pointerType)}];`
	`163`	`+ return [[RNGestureHandlerEventExtraData alloc] initWithData:@{`
	`164`	`+ @"pointerInside" : @(pointerInside),`
	`165`	`+ @"numberOfPointers" : @(numberOfTouches),`
	`166`	`+ @"pointerType" : @(pointerType)`
	`167`	`+ }];`
`163`	`168`	`}`
`164`	`169`
`165`	`170`	`@end`