danielmartin

If you work on a Swift project that follows the Model-View-ViewModel (MVVM) architecture or similar, you may want to jump to counterpart in Xcode from your view to your model, and then to your view model. (ie. by using Ctrl+Cmd+Up and Ctrl+Cmd+Down).

You can do this in recent versions of Xcode by setting a configuration default.

From a terminal, just type this command and press Enter:

defaults write com.apple.dt.Xcode IDEAdditionalCounterpartSuffixes -array-add "ViewModel" "View"

BohdanOrlov

public protocol ViewControllerLifecycleBehavior {
    func afterLoading(_ viewController: UIViewController)

    func beforeAppearing(_ viewController: UIViewController)

    func afterAppearing(_ viewController: UIViewController)

    func beforeDisappearing(_ viewController: UIViewController)

    func afterDisappearing(_ viewController: UIViewController)

tonnylitao

//some time, frc section may be need section offset
@objc public protocol MFetchedResultsControllerOffsetSectionDelegate{
    func offsetSection() -> Int
}

class MFetchedResultsController: NSFetchedResultsController, NSFetchedResultsControllerDelegate {
    weak var viewController: UIViewController?  //UITableViewController UICollectionViewController
    weak var scrollView: UIScrollView?          //TableView CollectionView
    
    weak var offsetSectionDelegate: MFetchedResultsControllerOffsetSectionDelegate?