Screenshot preview

YOLO/Info.plist

@@ -21,7 +21,7 @@
 	<key>CFBundleShortVersionString</key>
 	<string>$(MARKETING_VERSION)</string>
 	<key>CFBundleVersion</key>
-	<string>25</string>
+	<string>26</string>
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
 	<key>LSRequiresIPhoneOS</key>

YOLO/ViewController.swift

@@ -36,6 +36,7 @@ class ViewController: UIViewController {
   @IBOutlet weak var labelVersion: UILabel!
   @IBOutlet weak var labelSlider: UILabel!
   @IBOutlet weak var labelSliderConf: UILabel!
+  var screenshotImageView: UIImageView?
   @IBOutlet weak var labelSliderConfLandScape: UILabel!
   @IBOutlet weak var labelSliderIoU: UILabel!
   @IBOutlet weak var labelSliderIoULandScape: UILabel!
@@ -403,7 +404,6 @@ class ViewController: UIViewController {
           print("no file written")
         }
       }
-
       // Reading
       // do {let text2 = try String(contentsOf: fileURL, encoding: .utf8)} catch {/* error handling here */}
     }
@@ -614,6 +614,46 @@ class ViewController: UIViewController {
     default: break
     }
   }  // Pinch to Zoom End --------------------------------------------------------------------------------------------
+
+  func showShareAlert(image: UIImage) {
+    let alertController = UIAlertController(
+      title: "Do you want to share this image?", message: nil, preferredStyle: .alert)
+
+    let shareAction = UIAlertAction(title: "OK", style: .default) { _ in
+      self.shareImage(image: image)
+    }
+
+    let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) { _ in
+      self.hideScreenshotImageView()
+    }
+
+    alertController.addAction(shareAction)
+    alertController.addAction(cancelAction)
+
+    if let popoverController = alertController.popoverPresentationController {
+      popoverController.sourceView = self.view
+      popoverController.sourceRect = CGRect(
+        x: self.view.bounds.midX, y: self.view.bounds.maxY - 100, width: 0, height: 0)
+      popoverController.permittedArrowDirections = []
+    }
+
+    present(alertController, animated: true, completion: nil)
+  }
+
+  func shareImage(image: UIImage) {
+    let activityViewController = UIActivityViewController(
+      activityItems: [image], applicationActivities: nil)
+    activityViewController.popoverPresentationController?.sourceView = self.View0
+    self.present(activityViewController, animated: true) {
+      self.hideScreenshotImageView()
+    }
+  }
+
+  func hideScreenshotImageView() {
+    self.screenshotImageView?.removeFromSuperview()
+    self.screenshotImageView = nil
+  }
+  // ------------------------------------------------------------------------------------------
 }  // ViewController class End
 
 extension ViewController: VideoCaptureDelegate {
@@ -635,7 +675,7 @@ extension ViewController: AVCapturePhotoCaptureDelegate {
       let cgImageRef: CGImage! = CGImage(
         jpegDataProviderSource: dataProvider!, decode: nil, shouldInterpolate: true,
         intent: .defaultIntent)
-      var orientation = CGImagePropertyOrientation.right
+      var orientation = UIImage.Orientation.right
       switch UIDevice.current.orientation {
       case .landscapeLeft:
         orientation = .up
@@ -644,16 +684,13 @@ extension ViewController: AVCapturePhotoCaptureDelegate {
       default:
         break
       }
-      var image = UIImage(cgImage: cgImageRef, scale: 0.5, orientation: .right)
-      if let orientedCIImage = CIImage(image: image)?.oriented(orientation),
-        let cgImage = CIContext().createCGImage(orientedCIImage, from: orientedCIImage.extent)
-      {
-        image = UIImage(cgImage: cgImage)
-      }
+      var image = UIImage(cgImage: cgImageRef, scale: 0.5, orientation: orientation)
       let imageView = UIImageView(image: image)
       imageView.contentMode = .scaleAspectFill
       imageView.frame = videoPreview.frame
       let imageLayer = imageView.layer
+      var sublayers = videoPreview.layer.sublayers ?? []
+      let insertIndex = max(sublayers.count - 1, 0)
       videoPreview.layer.insertSublayer(imageLayer, above: videoCapture.previewLayer)
 
       let bounds = UIScreen.main.bounds
@@ -662,10 +699,23 @@ extension ViewController: AVCapturePhotoCaptureDelegate {
       let img = UIGraphicsGetImageFromCurrentImageContext()
       UIGraphicsEndImageContext()
       imageLayer.removeFromSuperlayer()
-      let activityViewController = UIActivityViewController(
-        activityItems: [img!], applicationActivities: nil)
-      activityViewController.popoverPresentationController?.sourceView = self.View0
-      self.present(activityViewController, animated: true, completion: nil)
+
+      let screenshotImageView = UIImageView(image: img)
+      screenshotImageView.frame = view.bounds
+      screenshotImageView.contentMode = .scaleAspectFit
+      view.addSubview(screenshotImageView)
+      self.screenshotImageView = screenshotImageView
+
+      UIView.animate(
+        withDuration: 0.3,
+        animations: {
+          screenshotImageView.frame = CGRect(
+            x: 20, y: 100, width: self.view.bounds.width - 40, height: self.view.bounds.height - 200
+          )
+        }
+      ) { _ in
+        self.showShareAlert(image: img!)
+      }
       //
       //            // Save to camera roll
       //            UIImageWriteToSavedPhotosAlbum(img!, nil, nil, nil);