Created new demo UI and fixed issue with delegate calls not on main queue

DemoSwiftyCam/DemoSwiftyCam/Assets.xcassets/flash.imageset/Contents.json

@@ -11,7 +11,7 @@
     },
     {
       "idiom" : "universal",
-      "filename" : "Flash@3x.png",
+      "filename" : "flash@3x.png",
       "scale" : "3x"
     }
   ],

DemoSwiftyCam/DemoSwiftyCam/Assets.xcassets/flashOutline.imageset/Contents.json

@@ -6,12 +6,12 @@
     },
     {
       "idiom" : "universal",
-      "filename" : "Camera@2x.png",
+      "filename" : "flashOutline@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "Camera@3x.png",
+      "filename" : "flashOutline@3x.png",
       "scale" : "3x"
     }
   ],

DemoSwiftyCam/DemoSwiftyCam/Assets.xcassets/flipCamera.imageset/Contents.json

@@ -6,12 +6,12 @@
     },
     {
       "idiom" : "universal",
-      "filename" : "flipcamera@2x.png",
+      "filename" : "CameraSwitch@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "flipCamera@3x.png",
+      "filename" : "CameraSwitch@3x.png",
       "scale" : "3x"
     }
   ],

DemoSwiftyCam/DemoSwiftyCam/Base.lproj/Main.storyboard

@@ -5,7 +5,6 @@
     </device>
     <dependencies>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
-        <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -20,41 +19,11 @@
                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
                         <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" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="SH4-0K-8ra">
-                                <rect key="frame" x="325" y="30" width="30" height="22"/>
-                                <state key="normal" image="Flash"/>
-                                <connections>
-                                    <action selector="toggleFlashAction:" destination="BYZ-38-t0r" eventType="touchUpInside" id="j1T-ak-teR"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Bb3-ix-Jd1">
-                                <rect key="frame" x="20" y="28" width="30" height="26"/>
-                                <state key="normal" image="flipCamera"/>
-                                <connections>
-                                    <action selector="cameraSwitchAction:" destination="BYZ-38-t0r" eventType="touchUpInside" id="a9E-90-SZM"/>
-                                </connections>
-                            </button>
-                        </subviews>
                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <constraints>
-                            <constraint firstItem="Bb3-ix-Jd1" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" constant="8" symbolic="YES" id="2Fx-Ut-jDO"/>
-                            <constraint firstAttribute="trailingMargin" secondItem="SH4-0K-8ra" secondAttribute="trailing" constant="4" id="AiE-Y6-Sxj"/>
-                            <constraint firstItem="Bb3-ix-Jd1" firstAttribute="centerY" secondItem="SH4-0K-8ra" secondAttribute="centerY" id="Cnv-VO-rR3"/>
-                            <constraint firstItem="Bb3-ix-Jd1" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leadingMargin" constant="4" id="yuS-xl-hcP"/>
-                        </constraints>
                     </view>
-                    <connections>
-                        <outlet property="flipCameraButton" destination="Bb3-ix-Jd1" id="Q9m-ib-9iQ"/>
-                        <outlet property="toggleFlashButton" destination="SH4-0K-8ra" id="BSt-X8-4Do"/>
-                    </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
         </scene>
     </scenes>
-    <resources>
-        <image name="Flash" width="30" height="19"/>
-        <image name="flipCamera" width="30" height="26"/>
-    </resources>
 </document>

DemoSwiftyCam/DemoSwiftyCam/ViewController.swift

@@ -18,14 +18,16 @@ import UIKit
 
 class ViewController: SwiftyCamViewController, SwiftyCamViewControllerDelegate {
     
-    @IBOutlet weak var flipCameraButton: UIButton!
-    @IBOutlet weak var toggleFlashButton: UIButton!
+    var flipCameraButton: UIButton!
+    var flashButton: UIButton!
     var captureButton: SwiftyRecordButton!
     
     override func viewDidLoad() {
         super.viewDidLoad()
         cameraDelegate = self
         kMaximumVideoDuration = 10.0
+        addButtons()
+
     }
     
     override var prefersStatusBarHidden: Bool {
@@ -34,13 +36,6 @@ class ViewController: SwiftyCamViewController, SwiftyCamViewControllerDelegate {
     
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
-        
-        captureButton = SwiftyRecordButton(frame: CGRect(x: view.frame.midX - 37.5, y: view.frame.height - 100.0, width: 75.0, height: 75.0))
-        self.view.addSubview(captureButton)
-        captureButton.delegate = self
-        self.view.bringSubview(toFront: captureButton)
-        self.view.bringSubview(toFront: flipCameraButton)
-        self.view.bringSubview(toFront: toggleFlashButton)
     }
     
     func SwiftyCamDidTakePhoto(_ photo: UIImage) {
@@ -49,10 +44,18 @@ class ViewController: SwiftyCamViewController, SwiftyCamViewControllerDelegate {
     
     func SwiftyCamDidBeginRecordingVideo() {
         print("Did Begin Recording")
+        UIView.animate(withDuration: 0.25, animations: {
+            self.flashButton.alpha = 0.0
+            self.flipCameraButton.alpha = 0.0
+        })
     }
     
     func SwiftyCamDidFinishRecordingVideo() {
         print("Did finish Recording")
+        UIView.animate(withDuration: 0.25, animations: {
+            self.flashButton.alpha = 1.0
+            self.flipCameraButton.alpha = 1.0
+        })
     }
     
     func SwiftyCamDidFinishProcessingVideoAt(_ url: URL) {
@@ -71,12 +74,37 @@ class ViewController: SwiftyCamViewController, SwiftyCamViewControllerDelegate {
         print(camera)
     }
     
-    @IBAction func cameraSwitchAction(_ sender: Any) {
+    @objc private func cameraSwitchAction(_ sender: Any) {
         switchCamera()
     }
     
-    @IBAction func toggleFlashAction(_ sender: Any) {
+    @objc private func toggleFlashAction(_ sender: Any) {
         flashEnabled = !flashEnabled
+        
+        if flashEnabled == true {
+            flashButton.setImage(#imageLiteral(resourceName: "flash"), for: UIControlState())
+        } else {
+            flashButton.setImage(#imageLiteral(resourceName: "flashOutline"), for: UIControlState())
+        }
+    }
+    
+    private func addButtons() {
+        captureButton = SwiftyRecordButton(frame: CGRect(x: view.frame.midX - 37.5, y: view.frame.height - 100.0, width: 75.0, height: 75.0))
+        self.view.addSubview(captureButton)
+        //self.view.bringSubview(toFront: captureButton)
+        captureButton.delegate = self
+        
+        flipCameraButton = UIButton(frame: CGRect(x: view.frame.width / 4 - 15.0, y: view.frame.height - 74.0, width: 30.0, height: 23.0))
+        flipCameraButton.setImage(#imageLiteral(resourceName: "flipCamera"), for: UIControlState())
+        flipCameraButton.addTarget(self, action: #selector(cameraSwitchAction(_:)), for: .touchUpInside)
+        self.view.addSubview(flipCameraButton)
+        //self.view.bringSubview(toFront: flipCameraButton)
+        
+        flashButton = UIButton(frame: CGRect(x: view.frame.width * 3 / 4 - 9.0, y: view.frame.height - 77.5, width: 18.0, height: 30.0))
+        flashButton.setImage(#imageLiteral(resourceName: "flashOutline"), for: UIControlState())
+        flashButton.addTarget(self, action: #selector(toggleFlashAction(_:)), for: .touchUpInside)
+        self.view.addSubview(flashButton)
+       // self.view.bringSubview(toFront: flashButton)
     }
 }
 

Source/SwiftyCamViewController.swift

@@ -395,7 +395,9 @@ open class SwiftyCamViewController: UIViewController {
                 let outputFilePath = (NSTemporaryDirectory() as NSString).appendingPathComponent((outputFileName as NSString).appendingPathExtension("mov")!)
                 movieFileOutput.startRecording(toOutputFileURL: URL(fileURLWithPath: outputFilePath), recordingDelegate: self)
                 self.isVideoRecording = true
-                self.cameraDelegate?.SwiftyCamDidBeginRecordingVideo()
+                DispatchQueue.main.async {
+                    self.cameraDelegate?.SwiftyCamDidBeginRecordingVideo()
+                }
             }
             else {
                 movieFileOutput.stopRecording()
@@ -426,7 +428,9 @@ open class SwiftyCamViewController: UIViewController {
                     self.flashView?.removeFromSuperview()
                 })
             }
-            self.cameraDelegate?.SwiftyCamDidFinishRecordingVideo()
+            DispatchQueue.main.async {
+                self.cameraDelegate?.SwiftyCamDidFinishRecordingVideo()
+            }
         }
     }
     
@@ -463,7 +467,10 @@ open class SwiftyCamViewController: UIViewController {
             }
             
             self.addInputs()
-            self.cameraDelegate?.SwiftyCamDidSwitchCameras(camera: self.currentCamera)
+            DispatchQueue.main.async {
+                self.cameraDelegate?.SwiftyCamDidSwitchCameras(camera: self.currentCamera)
+            }
+            
             self.session.startRunning()
         }
         
@@ -496,7 +503,10 @@ open class SwiftyCamViewController: UIViewController {
                     device.exposureMode = AVCaptureExposureMode.continuousAutoExposure
                     device.unlockForConfiguration()
                     //Call delegate function and pass in the location of the touch
-                    self.cameraDelegate?.SwiftyCamDidFocusAtPoint(focusPoint: touchPoint.location(in: previewLayer))
+                    
+                    DispatchQueue.main.async {
+                        self.cameraDelegate?.SwiftyCamDidFocusAtPoint(focusPoint: touchPoint.location(in: self.previewLayer))
+                    }
                 }
                 catch {
                 // just ignore
@@ -691,7 +701,9 @@ open class SwiftyCamViewController: UIViewController {
                     let image = self.processPhoto(imageData!)
                     
                     // Call delegate and return new image
-                    self.cameraDelegate?.SwiftyCamDidTakePhoto(image)
+                    DispatchQueue.main.async {
+                        self.cameraDelegate?.SwiftyCamDidTakePhoto(image)
+                    }
                     completionHandler(true)
                 } else {
                     completionHandler(false)
@@ -718,7 +730,9 @@ open class SwiftyCamViewController: UIViewController {
                 captureDevice?.videoZoomFactor = zoomScale
                 
                 // Call Delegate function with current zoom scale
-                self.cameraDelegate?.SwiftyCamDidChangeZoomLevel(zoomLevel: zoomScale)
+                DispatchQueue.main.async {
+                    self.cameraDelegate?.SwiftyCamDidChangeZoomLevel(zoomLevel: self.zoomScale)
+                }
             
                 captureDevice?.unlockForConfiguration()
             
@@ -745,8 +759,11 @@ open class SwiftyCamViewController: UIViewController {
     fileprivate func promptToAppSettings() {
         guard promptToAppPrivacySettings == true else {
             // Do not prompt user
-            // Ca// delegate function SwiftyCamDidFailCameraPermissionSettings()
-            self.cameraDelegate?.SwiftyCamDidFailCameraPermissionSettings()
+            // Call delegate function SwiftyCamDidFailCameraPermissionSettings()
+            
+            DispatchQueue.main.async {
+                self.cameraDelegate?.SwiftyCamDidFailCameraPermissionSettings()
+            }
             return
         }
         
@@ -939,7 +956,9 @@ extension SwiftyCamViewController : AVCaptureFileOutputRecordingDelegate {
             print("[SwiftyCam]: Movie file finishing error: \(error)")
         } else {
             //Call delegate function with the URL of the outputfile
-            self.cameraDelegate?.SwiftyCamDidFinishProcessingVideoAt(outputFileURL)
+            DispatchQueue.main.async {
+                self.cameraDelegate?.SwiftyCamDidFinishProcessingVideoAt(outputFileURL)
+            }
         }
     }
 }