getExternalAnnotation abstract method

Future<RtcAnnotation?> getExternalAnnotation(
  1. String annotationId
)

get external annotation object.

Parameter annotationId Annotation ID. Max length is 128 bytes

Returns

  • non-null: a pointer to the external annotation object
  • others: Failure

Note

  • Annotation ID must start with "pano-annotation-ext-".
  • When call this interface with annotationId not set before, AnnotationManager will create new annotation internal.

获取外部标注对象

Parameter annotationId 标注ID。最大长度128字节

Returns

  • 非空指针： 指向外部标注对象的指针。
  • 空指针: 失败

Note

  • 标注ID必须以"pano-annotation-ext-"作为前缀。
  • 当传入的annotationId之前没被设置过，AnnotationManager会生成新的标注对象

Implementation

Future<RtcAnnotation?> getExternalAnnotation(String annotationId);