User Permissions iOS in info.plist

For asking user permission developer must key-string pairs in Info.plist

<key>AppleKey</key>
<string>Developer's description to ask for permission from the user.</string>

Example:

If developer wants to use camera for video call, then user should ask for

1. photo gallery, 2. microphone, 3. camera

1.) <key>NSPhotoLibraryUsageDescription</key>
<string>This app requires access to the photo library for profile picture.</string>
2.) <key>NSMicrophoneUsageDescription</key>
<string>This app does not require access to the microphone for call.</string>
3.) <key>NSCameraUsageDescription</key>
<string>This app requires access to the camera for video call.</string>

Apple Document for properties list key references.: developer.apple.com 

Few More Examples:

Apple Music:

<key>NSAppleMusicUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Bluetooth:

<key>NSBluetoothPeripheralUsageDescription</key>  
<string>Developer description to get permission to access this capability</string>

Calendar:

<key>NSCalendarsUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Camera:

<key>NSCameraUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Contacts:

<key>NSContactsUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

FaceID:

<key>NSFaceIDUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Health Share:

<key>NSHealthShareUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Health Update:

<key>NSHealthUpdateUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Home Kit:

<key>NSHomeKitUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Location:

<key>NSLocationUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Location (Always):

<key>NSLocationAlwaysUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Location (When in use):

<key>NSLocationWhenInUseUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Microphone:

<key>NSMicrophoneUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Motion (Accelerometer):

<key>NSMotionUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

NFC (Near-field communication): 

<key>NFCReaderUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Photo Library:

<key>NSPhotoLibraryUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Photo Library (Write-only access):

<key>NSPhotoLibraryAddUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Reminders:

<key>NSRemindersUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Siri:

<key>NSSiriUsageDescription</key>
<string>Developer description to get permission to access this capability</string>

Speech Recognition:

<key>NSSpeechRecognitionUsageDescription</key>
<string>Developer description to get permission to access this capability</string>