Adding values to coredata in swift share extension

问题

I need to insert and fetch data from coredata in swift share extension. How can I do this

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
    }

来源：https://stackoverflow.com/questions/34605036/adding-values-to-coredata-in-swift-share-extension