Fixed iOS scroll to top spring-back

tangbc · tangbc · commit b8153a97d2d2 · 2020-04-26T10:11:14.000+08:00
diff --git a/src/index.js b/src/index.js
@@ -195,7 +195,7 @@ const VirtualList = Vue.component('virtual-list', {
       const scrollSize = this.getScrollSize()
 
       // iOS scroll-spring-back behavior will make direction mistake
-      if (offset + clientSize > scrollSize || !scrollSize) {
+      if (offset < 0 || (offset + clientSize > scrollSize) || !scrollSize) {
         return
       }
 

Original file line number	Diff line number	Diff line change
`@@ -195,7 +195,7 @@ const VirtualList = Vue.component('virtual-list', {`
`195`	`195`	`const scrollSize = this.getScrollSize()`
`196`	`196`
`197`	`197`	`// iOS scroll-spring-back behavior will make direction mistake`
`198`		`- if (offset + clientSize > scrollSize \|\| !scrollSize) {`
	`198`	`+ if (offset < 0 \|\| (offset + clientSize > scrollSize) \|\| !scrollSize) {`
`199`	`199`	`return`
`200`	`200`	`}`
`201`	`201`