Split out protocol conformance to an extension

Author: msbit

RotatingWheelController/ViewController.swift

@@ -9,7 +9,15 @@
 import os
 import UIKit
 
-class ViewController: UIViewController, SMRotaryProtocol {
+class ViewController: UIViewController {
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        let wheel = SMRotaryWheel(frame: view.frame, delegate: self, numberOfSections: 3)
+        view.addSubview(wheel)
+    }
+}
+
+extension ViewController : SMRotaryProtocol {
     func viewFor(tag: Int) -> UIView {
         let view = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 40))
         view.backgroundColor = .red
@@ -21,13 +29,5 @@ class ViewController: UIViewController, SMRotaryProtocol {
     func wheelDidChangeValue(to: Int) {
         os_log(OSLogType.default, "%d", to);
     }
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        let wheel = SMRotaryWheel(frame: view.frame, delegate: self, numberOfSections: 3)
-        view.addSubview(wheel)
-    }
-
-
 }
 

SMRotaryProtocol.swift

@@ -9,6 +9,6 @@
 import UIKit
 
 protocol SMRotaryProtocol {
-    func wheelDidChangeValue(to: Int)
     func viewFor(tag: Int) -> UIView
+    func wheelDidChangeValue(to: Int)
 }