Permission

Uncategorized

Permission

November 30, 2023

Permission exposes a unified API to request permissions on iOS.

Usage

Permission.swift PermissionStatus.swift


                                              
                                                let permission: Permission = .contacts
print(permission.status) // .notDetermined
permission.request { status in

switch status {

case .authorized: print(“authorized”)

case .denied: print(“denied”)

case .disabled: print(“disabled”)

case .notDetermined: print(“not determined”)

}

}

Supported Permissions

PermissionType.swift Types/

PermissionAlert

PermissionAlert.swift

Denied and disabled alerts

When you first request a permission, a system alert is presented to the user. If you request a permission that was denied/disabled, a PermissionAlert will be presented. You might want to change the default title, message, cancel and settings text:


                                              
                                                let alert = permission.deniedAlert // or permission.disabledAlert
alert.title = “Please allow access to your contacts”

alert.message = nil

alert.cancel = “Cancel”

alert.settings = “Settings”

Set permission.presentDeniedAlert = false or permission.presentDisabledAlert = false if you don’t want to present these alerts.

Pre-permissions alerts

In order not to burn your only chance of displaying the system alert, you can present a pre-permission alert. See this article for more informations.


                                              
                                                permission.presentPrePermissionAlert = true
let alert = permission.prePermissionAlert
alert.title = “Let Foo Access Photos?”

alert.message = “This lets you choose which photos you want to add to your Foo profile”

alert.cancel = “Not now”

alert.confirm = “Give Access”

The system alert will only be presented if the user taps “Give Access”.

PermissionSet

PermissionSet.swift

Use a PermissionSet to check the status of a group of Permission and to react when a permission is requested.


                                              
                                                let permissionSet = PermissionSet(.contacts, .camera, .microphone, .photos)

permissionSet.delegate = self
print(permissionSet.status) // .notDetermined
// …
func permissionSet(permissionSet: PermissionSet, willRequestPermission permission: Permission) {

print(“Will request \(permission)”)

}
func permissionSet(permissionSet: PermissionSet, didRequestPermission permission: Permission) {

switch permissionSet.status {

case .authorized: print(“all the permissions are granted”)

case .denied: print(“at least one permission is denied”)

case .disabled: print(“at least one permission is disabled”)

case .notDetermined: print(“at least one permission is not determined”)

}

}

PermissionButton

PermissionButton

A PermissionButton requests the permission when tapped and updates itself when its underlying permission status changes.


                                              
                                                let button = PermissionButton(.photos)

PermissionButton is a subclass of UIButton. All the getters and setters of UIButton have their equivalent in PermissionButton.


                                              
                                                button.setTitles([

.authorized: “Authorized”,

.denied: “Denied”,

.disabled: “Disabled”,

.notDetermined: “Not determined”

])
// button.setAttributedTitles

// button.setTitleColors

// button.setTitleShadowColors

// button.setImages

// button.setBackgroundImages

// etc.

Third-party libraries:

sunshinejr/RxPermission RxSwift bindings for Permissions API in iOS.

Example


                                              
                                                class PermissionsViewController: UIViewController, PermissionSetDelegate {
override func viewDidLoad() {

super.viewDidLoad()
let label = UILabel()
let contacts = PermissionButton(.contacts)

let camera = PermissionButton(.camera)

let microphone = PermissionButton(.microphone)

let photos = PermissionButton(.photos)
contacts.setTitles([

.notDetermined: “Contacts – NotDetermined”

.authorized: “Contacts – Authorized”,

.denied: “Contacts – Denied”

])
contacts.setTitleColors([

.notDetermined: .black,

.authorized: .green,

.denied: .red

])
// …
let permissionSet = PermissionSet(contacts, camera, microphone, photos)
permissionSet.delegate = self
label.text = String(describing: permissionSet.status)
for subview in [label, contacts, camera, microphone, photos] {

view.addSubview(subview)

}

}
func permissionSet(permissionSet: PermissionSet, didRequestPermission permission: Permission) {

label.text = String(permissionSet.status)

}

}

Installation

Carthage

Carthage is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.

You can install Carthage with Homebrew using the following command:


                                              
                                                $ brew update

$ brew install carthage

To integrate Permission into your Xcode project using Carthage, specify it in your Cartfile:


                                              
                                                github “delba/Permission”

Configuration

Due to Apple’s new policy regarding permission access, binaries may be rejected due to a perceived attempt to access privacy-sensitive data without a usage key, and then further rejected for not actually requesting permissions.

As a workaround, you can provide custom build flags before building the dynamic framework to only compile with permissions you request. This is done by adding a configuration file named PermissionConfiguration.xcconfig to the root of your project. For convenience, you can use PermissionConfiguration.xcconfig in the Permission/ repo directory. Just comment out the permissions you want to use, and compile the framework.

To compile with only notifications and photos permissions:


                                              
                                                PERMISSION_BLUETOOTH = // PERMISSION_BLUETOOTH

PERMISSION_CAMERA = PERMISSION_CAMERA

PERMISSION_CONTACTS = // PERMISSION_CONTACTS

PERMISSION_EVENTS = // PERMISSION_EVENTS

PERMISSION_LOCATION = // PERMISSION_LOCATION

PERMISSION_MICROPHONE = // PERMISSION_MICROPHONE

PERMISSION_MOTION = // PERMISSION_MOTION

PERMISSION_NOTIFICATIONS = PERMISSION_NOTIFICATIONS

PERMISSION_PHOTOS = // PERMISSION_PHOTOS

PERMISSION_REMINDERS = // PERMISSION_REMINDERS

PERMISSION_SPEECH_RECOGNIZER = // PERMISSION_SPEECH_RECOGNIZER

PERMISSION_MEDIA_LIBRARY = // PERMISSION_MEDIA_LIBRARY
// Do not modify this line. Instead, remove comments above as needed to enable the categories your app uses.

PERMISSION_FLAGS= $(PERMISSION_BLUETOOTH) $(PERMISSION_CAMERA) $(PERMISSION_CONTACTS) $(PERMISSION_EVENTS) $(PERMISSION_LOCATION) $(PERMISSION_MICROPHONE) $(PERMISSION_MOTION) $(PERMISSION_NOTIFICATIONS) $(PERMISSION_PHOTOS) $(PERMISSION_REMINDERS) $(PERMISSION_SPEECH_RECOGNIZER) $(PERMISSION_MEDIA_LIBRARY)
SWIFT_ACTIVE_COMPILATION_CONDITIONS = $(inherited) $(PERMISSION_FLAGS)

CocoaPods

CocoaPods is a dependency manager for Cocoa projects.

You can install it with the following command:


                                              
                                                $ gem install cocoapods

To integrate Permission into your Xcode project using CocoaPods, specify it in your Podfile. Due to Apple’s new policy regarding permission access you need to specifically define what kind of permissions you want to access using subspecs. For example if you want to access the Camera and the Notifications you define the following:


                                              
                                                use_frameworks!
pod ‘Permission/Camera’

pod ‘Permission/Notifications’

Please see Permission.podspec for more information about which subspecs are available.

GitHub

View Github

#carthage #cocoapods #framework #ios #permission #swift