Support ATT framework for iOS 14

Author: Sohail Yar Khan

README.md

@@ -34,6 +34,7 @@ target 'YourAwesomeProject' do
 
   permissions_path = '../node_modules/react-native-permissions/ios'
 
+  pod 'Permission-AppTrackingTransparency', :path => "#{permissions_path}/AppTrackingTransparency.podspec"
   pod 'Permission-BluetoothPeripheral', :path => "#{permissions_path}/BluetoothPeripheral.podspec"
   pod 'Permission-Calendars', :path => "#{permissions_path}/Calendars.podspec"
   pod 'Permission-Camera', :path => "#{permissions_path}/Camera.podspec"
@@ -98,6 +99,8 @@ Then update your `Info.plist` with wanted permissions usage descriptions:
   <string>YOUR TEXT</string>
   <key>NSSiriUsageDescription</key>
   <string>YOUR TEXT</string>
+	<key>NSUserTrackingUsageDescription</key>
+	<string>YOUR TEXT</string>
 
   <!-- … -->
 

ios/AppTrackingTransparency.podspec

@@ -0,0 +1,21 @@
+require 'json'
+package = JSON.parse(File.read('../package.json'))
+
+Pod::Spec.new do |s|
+  s.name                      = "Permission-AppTrackingTransparency"
+  s.dependency                  "RNPermissions"
+
+  s.version                   = package["version"]
+  s.license                   = package["license"]
+  s.summary                   = package["description"]
+  s.authors                   = package["author"]
+  s.homepage                  = package["homepage"]
+
+  s.platform                  = :ios, "9.0"
+  s.ios.deployment_target     = "9.0"
+  s.tvos.deployment_target    = "11.0"
+  s.requires_arc              = true
+
+  s.source                    = { :git => package["repository"]["url"], :tag => s.version }
+  s.source_files              = "AppTrackingTransparency/*.{h,m}"
+end

ios/AppTrackingTransparency/RNPermissionHandlerAppTrackingTransparency.h

@@ -0,0 +1,5 @@
+#import "RNPermissions.h"
+
+@interface RNPermissionHandlerAppTrackingTransparency : NSObject<RNPermissionHandler>
+
+@end

ios/AppTrackingTransparency/RNPermissionHandlerAppTrackingTransparency.m

@@ -0,0 +1,50 @@
+#import "RNPermissionHandlerAppTrackingTransparency.h"
+
+@import AppTrackingTransparency;
+@import AdSupport;
+
+@implementation RNPermissionHandlerAppTrackingTransparency
+
++ (NSArray<NSString *> * _Nonnull)usageDescriptionKeys {
+  return @[@"NSUserTrackingUsageDescription"];
+}
+
++ (NSString * _Nonnull)handlerUniqueId {
+  return @"ios.permission.APP_TRACKING_TRANSPARENCY";
+}
+
+- (void)checkWithResolver:(void (^ _Nonnull)(RNPermissionStatus))resolve
+                 rejecter:(void (__unused ^ _Nonnull)(NSError * _Nonnull))reject {
+    if (@available(iOS 14.0, *)) {
+      switch ([ATTrackingManager trackingAuthorizationStatus]) {
+        case ATTrackingManagerAuthorizationStatusNotDetermined:
+          return resolve(RNPermissionStatusNotDetermined);
+        case ATTrackingManagerAuthorizationStatusRestricted:
+          return resolve(RNPermissionStatusRestricted);
+        case ATTrackingManagerAuthorizationStatusDenied:
+          return resolve(RNPermissionStatusDenied);
+        case ATTrackingManagerAuthorizationStatusAuthorized:
+          return resolve(RNPermissionStatusAuthorized);
+      }
+    } else {
+        NSString *idfaString = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
+        if ([idfaString isEqualToString:@"00000000-0000-0000-0000-000000000000"]) {
+            return resolve(RNPermissionStatusDenied);
+        }
+        
+        resolve(RNPermissionStatusAuthorized);
+    }
+}
+
+- (void)requestWithResolver:(void (^ _Nonnull)(RNPermissionStatus))resolve
+                   rejecter:(void (^ _Nonnull)(NSError * _Nonnull))reject {
+  if (@available(iOS 14.0, *)) {
+    [ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(__unused ATTrackingManagerAuthorizationStatus status) {
+        [self checkWithResolver:resolve rejecter:reject];
+    }];
+  } else {
+      [self checkWithResolver:resolve rejecter:reject];
+  }
+}
+
+@end

ios/RNPermissions.h

@@ -48,6 +48,9 @@ typedef NS_ENUM(NSInteger, RNPermission) {
 #if __has_include("RNPermissionHandlerStoreKit.h")
   RNPermissionStoreKit = 15,
 #endif
+#if __has_include("RNPermissionHandlerAppTrackingTransparency.h")
+  RNPermissionAppTrackingTransparency = 16,
+#endif
 };
 
 @interface RCTConvert (RNPermission)

ios/RNPermissions.m

@@ -49,6 +49,9 @@
 #if __has_include("RNPermissionHandlerStoreKit.h")
 #import "RNPermissionHandlerStoreKit.h"
 #endif
+#if __has_include("RNPermissionHandlerAppTrackingTransparency.h")
+#import "RNPermissionHandlerAppTrackingTransparency.h"
+#endif
 
 static NSString* SETTING_KEY = @"@RNPermissions:Requested";
 
@@ -100,6 +103,9 @@ @implementation RCTConvert(RNPermission)
 #if __has_include("RNPermissionHandlerStoreKit.h")
   [RNPermissionHandlerStoreKit handlerUniqueId]: @(RNPermissionStoreKit),
 #endif
+#if __has_include("RNPermissionHandlerAppTrackingTransparency.h")
+  [RNPermissionHandlerAppTrackingTransparency handlerUniqueId]: @(RNPermissionAppTrackingTransparency),
+#endif
 }), RNPermissionUnknown, integerValue);
 
 @end
@@ -173,6 +179,9 @@ - (NSDictionary *)constantsToExport {
 #if __has_include("RNPermissionHandlerStoreKit.h")
   [available addObject:[RNPermissionHandlerStoreKit handlerUniqueId]];
 #endif
+#if __has_include("RNPermissionHandlerAppTrackingTransparency.h")
+  [available addObject:[RNPermissionHandlerAppTrackingTransparency handlerUniqueId]];
+#endif
 
 #if RCT_DEV
   if ([available count] == 0) {
@@ -268,6 +277,11 @@ - (NSDictionary *)constantsToExport {
     case RNPermissionStoreKit:
       handler = [RNPermissionHandlerStoreKit new];
       break;
+#endif
+#if __has_include("RNPermissionHandlerAppTrackingTransparency.h")
+    case RNPermissionAppTrackingTransparency:
+      handler = [RNPermissionHandlerAppTrackingTransparency new];
+      break;
 #endif
     case RNPermissionUnknown:
       break; // RCTConvert prevents this case

src/constants.ts

@@ -31,6 +31,7 @@ export const ANDROID = Object.freeze({
 });
 
 export const IOS = Object.freeze({
+  APP_TRACKING_TRANSPARENCY: 'ios.permission.APP_TRACKING_TRANSPARENCY' as const,
   BLUETOOTH_PERIPHERAL: 'ios.permission.BLUETOOTH_PERIPHERAL' as const,
   CALENDARS: 'ios.permission.CALENDARS' as const,
   CAMERA: 'ios.permission.CAMERA' as const,