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在 ObjC 中,UTTypeCopyPreferredTagWithClass返回与某个 UT 类型关联的第一个标签。我怎样才能获得所有标签呢?我的意思是,jpg而jpeg不是只是jpeg.
UTTypeCopyPreferredTagWithClass
jpg
jpeg
UTTypeCopyDeclaration检索这些信息。
UTTypeCopyDeclaration