Add one more switcher using frame

Author: knn90

KNSwitcher.swift

@@ -77,7 +77,7 @@ class KNSwitcher: UIView {
         button.widthAnchor.constraint(equalTo: button.heightAnchor, multiplier: 1).isActive = true
     }
 
-    func setImages(onImage:UIImage , offImage :UIImage) {
+    func setImages(onImage:UIImage? , offImage :UIImage?) {
             button.setImage(offImage, for: .normal)
             button.setImage(onImage, for: .selected)
         }   

SwitcherExample/Base.lproj/Main.storyboard

@@ -20,14 +20,6 @@
                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="QtP-RA-X1B">
-                                <rect key="frame" x="164" y="617" width="47" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Toggle"/>
-                                <connections>
-                                    <action selector="toggleBig:" destination="BYZ-38-t0r" eventType="touchUpInside" id="zUA-le-ET5"/>
-                                </connections>
-                            </button>
                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="vka-f4-iBa" customClass="KNSwitcher" customModule="SwitcherExample" customModuleProvider="target">
                                 <rect key="frame" x="67.5" y="269.5" width="240" height="128"/>
                                 <color key="backgroundColor" red="0.87058823529999996" green="0.92549019610000005" blue="0.80784313730000001" alpha="1" colorSpace="calibratedRGB"/>

SwitcherExample/ViewController.swift

@@ -13,18 +13,15 @@ class ViewController: UIViewController, KNSwitcherChangeValueDelegate {
     override func viewDidLoad() {
         super.viewDidLoad()
 
-        let switcher = KNSwitcher(frame: CGRect(x: 0, y: 0, width: 200, height: 40), on: false)
+        let switcher = KNSwitcher(frame: CGRect(x: 100, y: 100, width: 200, height: 80), on: false)
+        switcher.setImages(onImage: UIImage(named: "Checkmark"), offImage: UIImage(named: "Delete"))
         self.view.addSubview(switcher)
     }
 
     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }
-    
-    @IBAction func toggleBig(_ sender: AnyObject) {
-//        big.setOn(on: !big.on)
-    }
 
     func switcherDidChangeValue(switcher:KNSwitcher, value: Bool) {
         if value {