!21781 修复拖拽相关文档代码

Merge pull request !21781 from 郑齐熠/master

!21781 修复拖拽相关文档代码
Merge pull request !21781 from 郑齐熠/master
a23491b7 · openharmony_ci · Gitee · cc0e4939 · 4be362d4 · a23491b7
隐藏空白更改
内联并排

Showing with 9 addition and 5 deletion

zh-cn/application-dev/reference/arkui-ts/ts-universal-events-drag-drop.md ...n-dev/reference/arkui-ts/ts-universal-events-drag-drop.md +9 -5

未找到文件。
--- a/zh-cn/application-dev/reference/arkui-ts/ts-universal-events-drag-drop.md
+++ b/zh-cn/application-dev/reference/arkui-ts/ts-universal-events-drag-drop.md
@@ -88,12 +88,16 @@ struct Index {
  getDataFromUdmfRetry(event: DragEvent, callback: (data: DragEvent)=>void)
  {
-    let records: Array<udmf.UnifiedRecord> = event.getData().getRecords();
+    let data = event.getData();
-    if (records.length !== 0) {
+    if (!data) {
-      callback(event);
+      return false;
-      return true;
    }
-    return false;
+    let records: Array<udmf.UnifiedRecord> = data.getRecords();
+    if (!records || records.length <= 0) {
+      return false;
+    }
+    callback(event);
+    return true;
  }
  getDataFromUdmf(event: DragEvent, callback: (data: DragEvent)=>void)