d

iOS/src/AppDelegate.swift

@@ -10,21 +10,10 @@ extension AppDelegate {
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    let vc = UIViewController()
-    vc.view.backgroundColor = .white
     window = UIWindow(frame: UIScreen.main.bounds)
-    window?.rootViewController = vc
+    window?.rootViewController = Main.VC()
     window?.makeKeyAndVisible()
 
     return true
   }
 }
-
-extension AppDelegate {
-  private func setupMemory() {
-    /*
-    let w = Converter.World(converterModel)
-    converterS = Converter.Service(w)
-    */
-  }
-}

iOS/src/Main/Main.Section16Buttons.swift

@@ -0,0 +1,29 @@
+import UIKit
+
+// MARK: - Протоколы
+
+protocol MainSection16Buttons {
+}
+
+// MARK: - Реализация
+
+extension Main {
+  enum Section16Buttons {
+    static func setupCore(_ core: Main.VC) {
+      // Создаём 16 кнопок.
+      for i in 0..<16 {
+        let btn = UIButton()
+        core.buttons.append(btn)
+        btn.tag = i
+        //????btn.addTarget(self, action: #selector(selectButton), for: .touchUpInside)
+        core.view.addSubview(btn)
+      }
+      
+      // Расставляем их в сетке 4x4.
+      for btn in core.buttons {
+        btn.frame = CGRect(x: 0, y: btn.tag * 60, width: 50, height: 50)
+        btn.backgroundColor = .blue
+      }
+    }
+  }
+}

iOS/src/Main/Main.VC.swift

@@ -0,0 +1,15 @@
+import UIKit
+
+extension Main {
+  class VC: UIViewController {
+    var buttons = [UIButton]()
+
+    override func viewDidLoad() {
+      super.viewDidLoad()
+
+      view.backgroundColor = .white
+
+      Main.Section16Buttons.setupCore(self)
+    }
+  }
+}

iOS/src/Main/Main.swift

@@ -0,0 +1 @@
+enum Main { }