/Users/nkopilovskii/Documents/Pods/NKAnyViewModel/Example/NKAnyViewModelThis solution can be used as a stand-alone view configuration tool, or as an element of the configuration mechanism of composite visual components (for example, UITableView)
The purpose of this solution:
- To structure the program code by dividing the levels of View and Logic
- The ability to use one View in different contexts without changing the View's source code
- Providing a single interface for the configuration of Views and ViewModels
Basic protocol describes the basic instructions mechanism View configuration
public protocol NKAnyViewModel {
//Type of configurable view
static var viewAnyType: UIView.Type { get }
//View configurating
func setupAny(view: UIView)
}The protocol inherits the basic protocol NKAnyViewModel instructions; describes the association of a ViewModel type with a View type
This solution offers a basic implementation of the properties and methods of the NKAnyViewModel protocol
public protocol NKViewModel: NKAnyViewModel {
associatedtype ViewType: UIView
func setup(view: ViewType)
}
//NKViewModel base implementation
public extension NKViewModel {
static var viewAnyType: UIView.Type {
return ViewType.self
}
func setupAny(view: UIView) {
if let view = view as? ViewType {
setup(view: view)
}
}
}- Create custom view type with components for data display
class CustomView: UIView {
@IBOutlet weak var lblTitle: UILabel!
@IBOutlet weak var lblSubtitle: UILabel!
@IBOutlet weak var lblBody: UILabel!
}- Create ViewModel which implements the protocol
class SomeViewModel: NKViewModel {
func setup(view: CustomView) {}
}- Configurate view at
func setup(view:)
func setup(view: CustomView) {
view.lblTitle.text = String(describing: type(of: view))
view.lblSubtitle.text = String(describing: type(of: self))
view.lblBody.text = """
This view configurated by view model
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
"""
}- Add custom view to view controller
class ViewController: UIViewController {
@IBOutlet weak var customView: CustomView!
}- Init ViewModel
class ViewController: UIViewController {
@IBOutlet weak var customView: CustomView!
var viewModel = SomeViewModel()
}- Pass view to the method
setup(view:)for configuration
class ViewController: UIViewController {
@IBOutlet weak var customView: CustomView!
var viewModel = SomeViewModel()
///...
viewModel.setup(view: customView)
///...
}To run the example project, clone the repo, and run pod install from the Example directory first.
NKAnyViewModel is available through CocoaPods. To install it, simply add the following line to your Podfile:
pod 'NKAnyViewModel'iOS 10.0
Nick Kopilovskii, [email protected]
NKAnyViewModel is available under the MIT license. See the LICENSE file for more info.