ios - 共享扩展子查询以限制项目类型

SUBQUERY(
extensionItems,
$extensionItem,
SUBQUERY(
$extensionItem.attachments,
$attachment,
ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf"
).@count == 1
).@count == 1
OR
SUBQUERY(
extensionItems,
$extensionItem,
SUBQUERY(
$extensionItem.attachments,
$attachment,
ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image"
).@count &lt;= 10
).@count == 1
OR
SUBQUERY(
extensionItems,
$extensionItem,
SUBQUERY(
$extensionItem.attachments,
$attachment,
ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.url"
).@count == 1
).@count == 1

我只想支持images, pdf and url。

但是share extension在所有类型中都是可见的。即视频，联系人等

最佳答案

这是因为行:

).@count &lt;= 10

它为true返回0，这意味着true不匹配，因此您的扩展程序将为每种类型返回true。如果要将图像数限制为10，请将此行更改为以下内容。

).@count == $extensionItem.attachments.@count AND $extensionItem.attachments.@count &lt;= 10"