在swift share extension

Question

我需要在swift share扩展中插入和获取coredata中的数据。我怎么能这样做

class ShareViewController: SLComposeServiceViewController,NetworkSelectionViewControllerDelegate, PublishSelectionViewControllerDelegate,ApproverSelectionViewControllerDelegate{

    var selectedNetworkName = "Default"
    var selectedPublishName = "Select"
    var selectedApproverName = "Select"

    override func isContentValid() -> Bool {
        // Do validation of contentText and/or NSExtensionContext attachments here



        return true
    }