js:fix list renderBunchedItems array size <0

2020-03-31 11:59:33 +08:00
parent a2653711f8
commit 5d3016f46a
6 changed files with 6 additions and 6 deletions
--- a/doric-js/src/widget/list.ts
+++ b/doric-js/src/widget/list.ts
@@ -106,7 +106,7 @@ export class List extends Superview implements IList {

    private renderBunchedItems(start: number, length: number) {
        this.ignoreDirtyCallOnce = true
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map((_, idx) => {
            const listItem = this.getItem(start + idx)
            return listItem.toModel()
        })