From 6ed73ebeb3262d649bda0fcf9f6da3b59e4c205d Mon Sep 17 00:00:00 2001
From: ywcoder <1104410818@qq.com>
Date: Tue, 5 Aug 2025 09:38:23 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9EFAQ=EF=BC=9A=E5=A6=82?=
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---
 ...omponentAttributeCompatibilityJudgment.ets | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets

diff --git a/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets b/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets
new file mode 100644
index 0000000..1f80c19
--- /dev/null
+++ b/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets
@@ -0,0 +1,49 @@
+/*
+* Copyright (c) 2024 Huawei Device Co., Ltd.
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/*
+* FAQ：如何针对UI组件属性做API版本兼容性判断
+*/
+
+// [Start component_attribute_compatibility_judgment]
+import { deviceInfo } from '@kit.BasicServicesKit';
+
+@Entry
+@Component
+struct ComponentAttributeCompatibilityJudgment {
+  modifier: MyListModifier = new MyListModifier();
+
+  build() {
+    List() {
+      // 列表内容
+    }
+    .height('100%')
+    .width('100%')
+    .attributeModifier(this.modifier)
+  }
+}
+
+class MyListModifier implements AttributeModifier<ListAttribute> {
+  applyNormalAttribute(instance: ListAttribute): void {
+    // 通过deviceInfo的api版本信息进行判断
+    if (deviceInfo.sdkApiVersion > 14) {
+      // 要适配的是List组件的backToTop属性
+      // instance为List的属性对象，可以通过instance对象对属性进行修改
+      instance.backToTop(true);
+    }
+  }
+}
+
+// [End component_attribute_compatibility_judgment]
-- 
Gitee