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ImagePickerManager.swift
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ImagePickerManager.swift
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import UIKit
import Photos
import MobileCoreServices
// MARK: - This class is used to make native image and video picker in a single use -
protocol imagePickerSelectedProtocol {
func imagePickerSelectedFunction(selectedImage: UIImage?)
}
protocol videoPickerSelectedProtocol {
func videoPickerSelectedFunction(selectedVideo: NSURL?)
}
class ImagePickerManager: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
override func viewDidLoad() {
super.viewDidLoad()
}
static let sharedInstance = ImagePickerManager()
var presentingController = UIViewController()
var imagePickerSelectedDelegate: imagePickerSelectedProtocol?
var videoPickerSelectedDelegate: videoPickerSelectedProtocol?
var cameraImage: Bool = false
var cameraVideo: Bool = false
var galleryVideo: Bool = false
class func callGenericImagePickerActionSheet(presentingController: UIViewController, title: String, message: String, buttonTitlesArray: [String], isVideo: Bool = false) {
self.sharedInstance.presentingController = presentingController
ActionSheetManager.actionSheetDynamic(title: title, message: message, buttonTitlesArray: buttonTitlesArray, successCallBack: { (callBackText) in
self.sharedInstance.cameraImage = false
self.sharedInstance.cameraVideo = false
self.sharedInstance.galleryVideo = false
if callBackText == buttonTitlesArray.first { // make this for camera always
if isVideo {
self.sharedInstance.cameraVideo = true
} else {
self.sharedInstance.cameraImage = true
}
} else {
if isVideo {
self.sharedInstance.galleryVideo = true
}
}
self.genericPickerMethod()
}) {
print("nothing")
}
}
private class func genericPickerMethod() {
let photos = PHPhotoLibrary.authorizationStatus()
if photos == .notDetermined || photos == .authorized {
PHPhotoLibrary.requestAuthorization({ status in
if status == .authorized {
print("access granted")
DispatchQueue.main.async {
let imagePicker = UIImagePickerController()
imagePicker.delegate = sharedInstance.self
imagePicker.allowsEditing = true
if self.sharedInstance.cameraImage || self.sharedInstance.cameraVideo {
imagePicker.sourceType = .camera
}
if self.sharedInstance.galleryVideo || self.sharedInstance.cameraVideo {
imagePicker.videoMaximumDuration = 30.0
imagePicker.mediaTypes = [(kUTTypeMovie as String)]
}
sharedInstance.presentingController.present(imagePicker, animated: true, completion: nil)
}
} else {
print("access denied")
}
})
} else {
AlertManager.customAlertView(messageString: "App is not able to access Photos, give permission to continue")
}
}
func compressVideo(inputURL: URL, outputURL: URL, handler: @escaping (_ exportSession: AVAssetExportSession?) -> Void) {
let urlAsset = AVURLAsset(url: inputURL, options: nil)
guard let exportSession = AVAssetExportSession(asset: urlAsset, presetName: AVAssetExportPresetMediumQuality) else {
handler(nil)
return
}
exportSession.outputURL = outputURL
exportSession.outputFileType = AVFileType.mp4
exportSession.shouldOptimizeForNetworkUse = true
exportSession.exportAsynchronously { () -> Void in
handler(exportSession)
}
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
print(info)
if let videoURL = info[UIImagePickerController.InfoKey.mediaURL] as? NSURL {
print(videoURL)
let compressedURL = NSURL.fileURL(withPath: NSTemporaryDirectory() + NSUUID().uuidString + ".mp4")
print(compressedURL)
self.compressVideo(inputURL: videoURL as URL, outputURL: compressedURL) { (exportSession) in
guard let session = exportSession else {
return
}
switch session.status {
case .unknown:
print("Unknown Stage")
break
case .waiting:
print("Working On file")
break
case .exporting:
print("File is exporting")
break
case .completed:
guard let compressedData = NSData(contentsOf: compressedURL) else {
return
}
let imageSize = Double(compressedData.length / 1048576)
print("File size after compression: \(imageSize) mb")
if imageSize > 10 {
AlertManager.customAlertView(messageString: "Video should be less than 10MB")
} else {
DispatchQueue.main.async {
print(compressedURL)
let videoURL = compressedURL as NSURL
ImagePickerManager.sharedInstance.presentingController.dismiss(animated: true, completion: nil)
self.videoPickerSelectedDelegate?.videoPickerSelectedFunction(selectedVideo: videoURL)
}
}
case .failed:
print("Failed to compress Url")
break
case .cancelled:
print("Cancelled compress Url")
break
@unknown default:
fatalError()
}
}
} else {
var selectedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage
if selectedImage == nil {
selectedImage = info[UIImagePickerController.InfoKey.originalImage] as? UIImage
}
ImagePickerManager.sharedInstance.presentingController.dismiss(animated: true, completion: nil)
imagePickerSelectedDelegate?.imagePickerSelectedFunction(selectedImage: selectedImage)
}
}
}