ScrollView: add missing onScroll event properties (facebook#4816)

Simek · web-flow · commit 62dcef0ddfdd · 2025-09-23T16:32:34.000+02:00
diff --git a/docs/scrollview.md b/docs/scrollview.md
@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid
 
 ### `onScroll`
 
-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):
+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):
 
 ```js
 {
@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape
     contentOffset: {x, y},
     contentSize: {height, width},
     layoutMeasurement: {height, width},
-    zoomScale
+    velocity: {x, y},
+    responderIgnoreScroll: boolean,
+    zoomScale,
+    // iOS only
+    targetContentOffset: {x, y}
   }
 }
 ```
diff --git a/website/versioned_docs/version-0.77/scrollview.md b/website/versioned_docs/version-0.77/scrollview.md
@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid
 
 ### `onScroll`
 
-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):
+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):
 
 ```js
 {
@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape
     contentOffset: {x, y},
     contentSize: {height, width},
     layoutMeasurement: {height, width},
-    zoomScale
+    velocity: {x, y},
+    responderIgnoreScroll: boolean,
+    zoomScale,
+    // iOS only
+    targetContentOffset: {x, y}
   }
 }
 ```
diff --git a/website/versioned_docs/version-0.78/scrollview.md b/website/versioned_docs/version-0.78/scrollview.md
@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid
 
 ### `onScroll`
 
-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):
+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):
 
 ```js
 {
@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape
     contentOffset: {x, y},
     contentSize: {height, width},
     layoutMeasurement: {height, width},
-    zoomScale
+    velocity: {x, y},
+    responderIgnoreScroll: boolean,
+    zoomScale,
+    // iOS only
+    targetContentOffset: {x, y}
   }
 }
 ```
diff --git a/website/versioned_docs/version-0.79/scrollview.md b/website/versioned_docs/version-0.79/scrollview.md
@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid
 
 ### `onScroll`
 
-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):
+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):
 
 ```js
 {
@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape
     contentOffset: {x, y},
     contentSize: {height, width},
     layoutMeasurement: {height, width},
-    zoomScale
+    velocity: {x, y},
+    responderIgnoreScroll: boolean,
+    zoomScale,
+    // iOS only
+    targetContentOffset: {x, y}
   }
 }
 ```
diff --git a/website/versioned_docs/version-0.80/scrollview.md b/website/versioned_docs/version-0.80/scrollview.md
@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid
 
 ### `onScroll`
 
-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):
+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):
 
 ```js
 {
@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape
     contentOffset: {x, y},
     contentSize: {height, width},
     layoutMeasurement: {height, width},
-    zoomScale
+    velocity: {x, y},
+    responderIgnoreScroll: boolean,
+    zoomScale,
+    // iOS only
+    targetContentOffset: {x, y}
   }
 }
 ```
diff --git a/website/versioned_docs/version-0.81/scrollview.md b/website/versioned_docs/version-0.81/scrollview.md
@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid
 
 ### `onScroll`
 
-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):
+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):
 
 ```js
 {
@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape
     contentOffset: {x, y},
     contentSize: {height, width},
     layoutMeasurement: {height, width},
-    zoomScale
+    velocity: {x, y},
+    responderIgnoreScroll: boolean,
+    zoomScale,
+    // iOS only
+    targetContentOffset: {x, y}
   }
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -440,7 +440,7 @@ Called when the momentum scroll ends (scroll which occurs as the ScrollView glid`
`440`	`440`
`441`	`441`	### `onScroll`
`442`	`442`
`443`		`-Fires at most once per frame during scrolling. The event has the following shape (all values are numbers):`
	`443`	`+Fires at most once per frame during scrolling. The event has the following shape (all values with unspecified type are numbers):`
`444`	`444`
`445`	`445`	```js
`446`	`446`	`{`
`@@ -449,7 +449,11 @@ Fires at most once per frame during scrolling. The event has the following shape`
`449`	`449`	`contentOffset: {x, y},`
`450`	`450`	`contentSize: {height, width},`
`451`	`451`	`layoutMeasurement: {height, width},`
`452`		`- zoomScale`
	`452`	`+ velocity: {x, y},`
	`453`	`+ responderIgnoreScroll: boolean,`
	`454`	`+ zoomScale,`
	`455`	`+ // iOS only`
	`456`	`+ targetContentOffset: {x, y}`
`453`	`457`	`}`
`454`	`458`	`}`
`455`	`459`	```