From edbe96aa8fc0857e6887ff2ccf613ec8470c2260 Mon Sep 17 00:00:00 2001
From: DCloud_LXH <283700113@qq.com>
Date: Fri, 11 Mar 2022 15:01:59 +0800
Subject: [PATCH] fix(app): triggered component Rebuild when removeUniChild
 question/140609

---
 .../src/view/framework/dom/components/UniComponent.ts  |  4 ++++
 .../src/vue/picker-view-column/index.tsx               | 10 +++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/packages/uni-app-plus/src/view/framework/dom/components/UniComponent.ts b/packages/uni-app-plus/src/view/framework/dom/components/UniComponent.ts
index c268aaa89b..9020e5a3b4 100644
--- a/packages/uni-app-plus/src/view/framework/dom/components/UniComponent.ts
+++ b/packages/uni-app-plus/src/view/framework/dom/components/UniComponent.ts
@@ -192,6 +192,10 @@ export class UniContainerComponent extends UniComponent {
     queuePostActionJob(this.getRebuildFn(), JOB_PRIORITY_REBUILD)
     return super.insertBefore(newChild, refChild)
   }
+  removeUniChild(node: UniNode) {
+    queuePostActionJob(this.getRebuildFn(), JOB_PRIORITY_REBUILD)
+    return super.removeUniChild(node)
+  }
   rebuild() {
     // 刷新容器组件状态
     if (__DEV__) {
diff --git a/packages/uni-components/src/vue/picker-view-column/index.tsx b/packages/uni-components/src/vue/picker-view-column/index.tsx
index 932c462ddd..4abb5de65c 100644
--- a/packages/uni-components/src/vue/picker-view-column/index.tsx
+++ b/packages/uni-components/src/vue/picker-view-column/index.tsx
@@ -251,11 +251,15 @@ export default /*#__PURE__*/ defineBuiltInComponent({
     }
 
     if (__PLATFORM__ === 'app') {
+      let isMounted: boolean = false
       useRebuild(() => {
         state.length = (contentRef.value as HTMLElement).children.length
-        // 由于 App 端 onMounted 时机未插入真实位置，需重新执行
-        initIndicatorHeight()
-        initScroller()
+        if (!isMounted) {
+          isMounted = true
+          // 由于 App 端 onMounted 时机未插入真实位置，需重新执行
+          initIndicatorHeight()
+          initScroller()
+        }
       })
     }
 
-- 
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