From 4cb9dfdd2494f1b67b8e4103eb85f8310305b143 Mon Sep 17 00:00:00 2001
From: "OWNEROR-41FNVD0\\lenovo" <gaofan76@chinasoftinc.com>
Date: Tue, 27 May 2025 20:02:25 +0800
Subject: [PATCH] =?UTF-8?q?feat=20(=E6=A0=87=E8=AF=86):=20=E4=BF=AE?=
 =?UTF-8?q?=E6=94=B9=20Lazy=5FLoading=5FOptimizes=5FPerformance=20?=
 =?UTF-8?q?=E4=BB=93=E5=BA=93=E6=A0=87=E8=AF=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../entry/src/main/ets/pages/Index.ets        | 25 +++++++++++++++++++
 .../entry/src/main/ets/segment/segment1.ets   |  2 +-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/pages/Index.ets b/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/pages/Index.ets
index 8e2d24ad..bfb9190d 100644
--- a/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/pages/Index.ets
+++ b/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/pages/Index.ets
@@ -1,10 +1,35 @@
+import { MyDataSource } from '../segment/segment1';
+
 @Entry
 @Component
 struct Index {
   @State message: string = 'Hello World';
+  private data: MyDataSource = new MyDataSource();
 
   build() {
     RelativeContainer() {
+      // [Start cached_count_list]
+      List() {
+        // ...
+      }.cachedCount(3)
+      // [End cached_count_list]
+
+      // [Start Lazy_for_each]
+      LazyForEach(this.data, (lazyForEachItem: string) => {
+        ListItem() {
+          Row() {
+            Text(lazyForEachItem).fontSize(50)
+          }.margin({ left: 10, right: 10 })
+        }.onAppear(() => {
+          // Record the number of times the component is created through onAppear
+          console.info("appear:" + lazyForEachItem)
+        })
+      }, (item: string) => {
+        // Print the key value in the keyGenerator function
+        console.info("key:" + item)
+        return item;
+      })
+      // [End Lazy_for_each]
       Text(this.message)
         .id('HelloWorld')
         .fontSize($r('app.float.page_text_font_size'))
diff --git a/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/segment/segment1.ets b/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/segment/segment1.ets
index f558239c..9e4d040a 100644
--- a/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/segment/segment1.ets
+++ b/ArkUI/Lazy_Loading_Optimizes_Performance/entry/src/main/ets/segment/segment1.ets
@@ -9,7 +9,7 @@ interface DataChangeListener {
 }
 
 
-class MyDataSource {
+export class MyDataSource {
   private _data: string[] = [];
   private _listeners: DataChangeListener[] = [];
 
-- 
Gitee