From 1284b2111e4e99152c055a802ebd86f6304883d3 Mon Sep 17 00:00:00 2001
From: zhuzijia <zhuzijia@huawei.com>
Date: Wed, 2 Aug 2023 14:46:30 +0800
Subject: [PATCH] fixed ccc48ad from
 https://gitee.com/zhuzijia/docs/pulls/21810 fix

Signed-off-by: zhuzijia <zhuzijia@huawei.com>
Change-Id: I97ab9a7275fdd5bd073bd9c95420843d8ce906b1
---
 .../quick-start/arkts-environment.md          | 29 +++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/zh-cn/application-dev/quick-start/arkts-environment.md b/zh-cn/application-dev/quick-start/arkts-environment.md
index 4e69f5950e..feba33c01e 100644
--- a/zh-cn/application-dev/quick-start/arkts-environment.md
+++ b/zh-cn/application-dev/quick-start/arkts-environment.md
@@ -16,11 +16,10 @@ Environment是ArkUI框架在应用程序启动时创建的单例对象。它为A
 
   ```ts
   // 将设备的语言code存入AppStorage，默认值为en
-  // 后续设备的语言设置切换，都将同步到AppStorage中
   Environment.EnvProp('languageCode', 'en');
   ```
 
-- 可以使用\@StorageProp链接到Component中。Component会根据设备运行环境的变化而更新：
+- 可以使用\@StorageProp链接到Component中。
 
   ```ts
   @StorageProp('languageCode') lang : string = 'en';
@@ -70,3 +69,29 @@ if (lang.get() === 'zh') {
   console.info('Hello!');
 }
 ```
+
+
+## 限制条件
+
+
+Environment和UIContext相关联，需要在[UIContext](../reference/apis/js-apis-arkui-UIContext.md#uicontext)明确的时候才可以调用。可以通过在[runScopedTask](../reference/apis/js-apis-arkui-UIContext.md#runscopedtask)里明确上下文。如果没有在UIContext明确的地方调用，将导致无法查询到设备环境数据。
+
+
+```ts
+// EntryAbility.ts
+import UIAbility from '@ohos.app.ability.UIAbility';
+import window from '@ohos.window';
+
+export default class EntryAbility extends UIAbility {
+  onWindowStageCreate(windowStage: window.WindowStage) {
+    windowStage.loadContent('pages/Index');
+    let window = windowStage.getMainWindow()
+    window.then(window => {
+      let uicontext = window.getUIContext()
+      uicontext.runScopedTask(() => {
+        Environment.EnvProp('languageCode', 'en');
+      })
+    })
+  }
+}
+```
\ No newline at end of file
-- 
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