null check

computerjazz · computerjazz · commit 1ac3d11d81e0 · 2023-02-22T11:36:32.000-08:00
diff --git a/src/components/DraggableFlatList.tsx b/src/components/DraggableFlatList.tsx
@@ -246,16 +246,16 @@ function DraggableFlatListInner<T>(props: DraggableFlatListProps<T>) {
         }
       }
     },
-    [isTouchActiveNative, onDragEnd]
+    [isTouchActiveNative, onDragEnd, onRelease]
   );
 
   useAnimatedReaction(
     () => {
       return spacerIndexAnim.value;
     },
     (cur, prev) => {
-      if (cur !== prev && cur >= 0 && prev >= 0) {
-        runOnJS(onPlaceholderIndexChange)(cur)
+      if (prev !== null && cur !== prev && cur >= 0 && prev >= 0) {
+        runOnJS(onPlaceholderIndexChange)(cur);
       }
     },
     [spacerIndexAnim]

Original file line number	Diff line number	Diff line change
`@@ -246,16 +246,16 @@ function DraggableFlatListInner<T>(props: DraggableFlatListProps<T>) {`
`246`	`246`	`}`
`247`	`247`	`}`
`248`	`248`	`},`
`249`		`- [isTouchActiveNative, onDragEnd]`
	`249`	`+ [isTouchActiveNative, onDragEnd, onRelease]`
`250`	`250`	`);`
`251`	`251`
`252`	`252`	`useAnimatedReaction(`
`253`	`253`	`() => {`
`254`	`254`	`return spacerIndexAnim.value;`
`255`	`255`	`},`
`256`	`256`	`(cur, prev) => {`
`257`		`- if (cur !== prev && cur >= 0 && prev >= 0) {`
`258`		`- runOnJS(onPlaceholderIndexChange)(cur)`
	`257`	`+ if (prev !== null && cur !== prev && cur >= 0 && prev >= 0) {`
	`258`	`+ runOnJS(onPlaceholderIndexChange)(cur);`
`259`	`259`	`}`
`260`	`260`	`},`
`261`	`261`	`[spacerIndexAnim]`