From fccd289571eb21ee63794499756379d55a1e7e39 Mon Sep 17 00:00:00 2001
From: DCloud_LXH <283700113@qq.com>
Date: Thu, 21 Nov 2024 18:04:53 +0800
Subject: [PATCH] chore: canvasContext measureText

---
 docs/api/canvas/CanvasContext.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/api/canvas/CanvasContext.md b/docs/api/canvas/CanvasContext.md
index db16aba0a..951a88309 100644
--- a/docs/api/canvas/CanvasContext.md
+++ b/docs/api/canvas/CanvasContext.md
@@ -658,6 +658,9 @@ ctx.draw()
 ![uniapp](https://qiniu-web-assets.dcloud.net.cn/unidoc/zh/line-to.png)
 
 ## CanvasContext.measureText
+
+> 该方法在 HarmonyOS Next 设备上是异步，需要传入回调函数获取文本尺寸信息。
+
 测量文本尺寸信息，目前仅返回文本宽度。同步接口。（App 端 2.8.12+ 支持）
 
 **参数**
@@ -665,6 +668,7 @@ ctx.draw()
 |参数	|类型	|说明			|
 |---	|---	|---			|
 |text	|String	|要测量的文本	|
+|callback	|({metricsWidth: number} => void)	|测量回调 `仅 HarmonyOS Next 支持`	|
 
 **返回**
 
-- 
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