aqubi

    func tableView(_ tableView: UITableView, canHandle session: UIDropSession) -> Bool {
        if session.canLoadObjects(ofClass: UIImage.self) {
            return true
        } else {
            return false
        }
    }

aqubi

    func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> Bool {
        if tabBarController.selectedViewController == viewController, let split = viewController as? UISplitViewController {
            if split.isCollapsed {
                if let navigation = split.viewControllers.first as? UINavigationController {
                    navigation.popToRootViewController(animated: true)
                }
            } else if split.displayMode == .primaryHidden {
                let mode = split.preferredDisplayMode
                split.preferredDisplayMode = mode
            }

aqubi

func splitViewController(_ splitViewController: UISplitViewController, separateSecondaryFrom primaryViewController: UIViewController) -> UIViewController? {
  if let navigation = primaryViewController as? UINavigationController, navigation.viewControllers.count == 1 {
    return UIStoryboard(name: "Placeholder", bundle: nil).instantiateInitialViewController()
  } else {
    return nil
  }
}

aqubi

func splitViewController(_ splitViewController: UISplitViewController, collapseSecondary secondaryViewController: UIViewController, onto primaryViewController: UIViewController) -> Bool {
  if secondaryViewController is PlaceholderViewController {
    return false
  } else {
    return true
  }
}

aqubi

   //MARK:- Accessibility

    override var accessibilityLabel: String? {
        get {
            return activityTypeLabel.accessibilityLabel
        }
        set { }
    }

    override var accessibilityValue: String? {

aqubi

let record = CKRecord(recordType: "MyType", recordID: recordID)
record["title"] = "name" as CKRecordValue?
record["price"]= 1 as CKRecordValue?

aqubi

let database = CKContainer.default().privateCloudDatabase
let operation = CKModifyRecordsOperation(recordsToSave: recordsToSave, recordIDsToDelete: recordIDsToDelete)
operation.modifyRecordsCompletionBlock = { (records, recordIDs, error) in
    //TODO:
}
operation.database = database

aqubi

let iconName = "sampleicon"
UIApplication.shared.setAlternateIconName(iconName) { (error) in
    if let e = error {
            print(e)
    }
}

aqubi

    private func firstDayOfWeek(date:Date) -> Date {
        let cal = Calendar.current
        let firstWeekDay = cal.firstWeekday
        let thisWeekDay = cal.dateComponents([.weekday], from: date).weekday!
        var diff = thisWeekDay - firstWeekDay
        if thisWeekDay < firstWeekDay {
            diff += cal.weekdaySymbols.count
        }
        diff = -1 * diff
        let firstDay = cal.date(byAdding: .day, value: diff, to: date)!

aqubi

import UIKit
import SceneKit

class ViewController: UIViewController {
    @IBOutlet weak var sceneView: SCNView!

    override func loadView() {
        super.loadView()
        let scene = SCNScene()
        self.sceneView.scene = scene