如何在iOS中同時請求相機和圖庫的權限？

我有一個應用程式，我需要在點擊一個按鈕時同時請求畫廊訪問和相機訪問。即一個接一個。我是 swift 的新手。有沒有合適的方法來做到這一點？

這是我目前使用的代碼：

func checkPermissions() {
    
    if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {
        // Request read-write access to the user's photo library.
        PHPhotoLibrary.requestAuthorization(for: .readWrite) { status in
            switch status {
            case .notDetermined:
                // The user hasn't determined this app's access.
                print("Not Determined")
                self.showAlertToOpenSettings(type: 1)
            case .restricted:
                // The system restricted this app's access.
                print("Resticted")
                self.showAlertToOpenSettings(type: 1)
            case .denied:
                // The user explicitly denied this app's access.
                print("Denied")
                self.showAlertToOpenSettings(type: 1)
            case .authorized:
                // The user authorized this app to access Photos data.
                print("authorised")
                DispatchQueue.main.async {
                    self.openPhotoPicker()
                }
            case .limited:
                // The user authorized this app for limited Photos access.
                print("Limited")
                DispatchQueue.main.async {
                    self.showLimitedLibraryAlert()
                }
//                self.openLimitedLibrary()
            @unknown default:
                fatalError()
            }
        }
    }
    if UIImagePickerController.isSourceTypeAvailable(.camera) {
        //Camera
        AVCaptureDevice.requestAccess(for: AVMediaType.video) { response in
            if response {
                //access granted
            } else {
                self.showAlertToOpenSettings(type: 2)
            }
        }
    }
}

問題在于，如果用戶從 photoLibrary 權限警報中選擇選項，則在選擇任何選項后立即出現相機警報。例如，如果我選擇有限選項（“選擇照片”），則在選擇照片視窗后立即出現相機警報。

如果我的問題中遺漏了任何內容，請告訴我。我希望現在更清楚了。

uj5u.com熱心網友回復：

首先將這些行添加到 info plist

<key>NSCameraUsageDescription</key>
<string>$(PRODUCT_NAME) would like to access camera!.</string>

還有這個

<key>NSPhotoLibraryUsageDescription</key>
<string>$(PRODUCT_NAME) would like to access photos.</string>

之后在你的專案中添加這個類

import Photos
import UIKit
public extension PHPhotoLibrary {
static func execute(controller: UIViewController,
                   onAccessHasBeenGranted: @escaping () -> Void,
                   onAccessHasBeenDenied: (() -> Void)? = nil) {

  let onDeniedOrRestricted = onAccessHasBeenDenied ?? {
     let alert = UIAlertController(
        title: "We were unable to load your album groups. Sorry!",
        message: "You can enable access in Privacy Settings",
        preferredStyle: .alert)
     alert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
     alert.addAction(UIAlertAction(title: "Settings", style: .default, handler: { _ in
        if let settingsURL = URL(string: UIApplication.openSettingsURLString) {
           UIApplication.shared.open(settingsURL)
        }
     }))
     controller.present(alert, animated: true)
  }

  let status = PHPhotoLibrary.authorizationStatus()
  switch status {
  case .notDetermined:
     onNotDetermined(onDeniedOrRestricted, onAccessHasBeenGranted)
  case .denied, .restricted:
     onDeniedOrRestricted()
  case .authorized:
     onAccessHasBeenGranted()
  case .limited:
    onAccessHasBeenGranted()
  @unknown default:
     fatalError("PHPhotoLibrary::execute - \"Unknown case\"")
  }


 }
}

private func onNotDetermined(_ onDeniedOrRestricted: @escaping (()->Void), _ onAuthorized: @escaping (()->Void)) {


PHPhotoLibrary.requestAuthorization({ status in
switch status {
  case .notDetermined:
     onNotDetermined(onDeniedOrRestricted, onAuthorized)
  case .denied, .restricted:
     onDeniedOrRestricted()
  case .authorized:
     onAuthorized()
 case .limited:
    onAuthorized()
  @unknown default:
     fatalError("PHPhotoLibrary::execute - \"Unknown case\"")
  }
 })
}

如何在按鈕或 viewdidload 等中使用它

PHPhotoLibrary.execute(controller: self, onAccessHasBeenGranted: {
// access granted... 
})

uj5u.com熱心網友回復：

您可以一個接一個地添加相機和照片庫權限。你只需要在 info.plist 中添加這個鍵 -

<key>NSCameraUsageDescription</key> <string>Mention reason to access camera</string>

<key>NSPhotoLibraryUsageDescription</key>
<string>Mention reason to access photo Library</string>

添加后，您必須在 Appdelegate 或視圖控制器中添加以下代碼，您需要征得許可 -

func askForCameraPermission() {
    AVCaptureDevice.requestAccess(for: AVMediaType.video) { response in
            if response {
                //access granted
            } else {

            }
        }        
}

func askForPhotoLibraryPermission() {
    let photos = PHPhotoLibrary.authorizationStatus()
        if photos == .notDetermined {
            PHPhotoLibrary.requestAuthorization({status in
                if status == .authorized{
                    //access granted
                } else {}
            })
        }
}

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