使用uiactivityViewController

这是我的代码：

let activityViewController = uiactivityViewController(activityItems: objectsToShare,applicationactivities: nil)
    activityViewController.excludedactivityTypes = []
    activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash

    activityViewController.completionWithItemsHandler = { (activityType,completed:Bool,returnedItems:[Any]?,error: Error?) in
    }
}