Only request App Tracking Transparency when app is active (#751)

Author: zoontek

README.md

@@ -955,26 +955,6 @@ When requesting `PERMISSIONS.IOS.LOCATION_ALWAYS`, if the user choose `Allow Whi
 
 Subsequently, if you are requesting `LOCATION_ALWAYS` permission, there is no need to request `LOCATION_WHEN_IN_USE`. If the user accepts, `LOCATION_WHEN_IN_USE` will be granted too. If the user denies, `LOCATION_WHEN_IN_USE` will be denied too.
 
-### How to request "App Tracking Transparency" permission on iOS
-
-Since iOS 15.0, it's impossible to request this permission if the app isn't `active` (see [#648](https://github.com/zoontek/react-native-permissions/issues/648)). A good solution is to use `AppState` to make sure this is the case:
-
-```js
-useEffect(() => {
-  const callback = (status: AppStateStatus) => {
-    if (status === 'active') {
-      request(PERMISSIONS.IOS.APP_TRACKING_TRANSPARENCY)
-        .then((result) => console.log(result))
-        .catch((error) => console.log(error));
-    }
-  };
-
-  callback(AppState.currentState); // initial call
-  const listener = AppState.addEventListener('change', callback);
-  return listener.remove;
-}, []);
-```
-
 ### Testing with Jest
 
 If you don't already have a Jest setup file configured, please add the following to your Jest configuration file and create the new `jest.setup.js` file in project root:

ios/AppTrackingTransparency/RNPermissionHandlerAppTrackingTransparency.m

@@ -3,6 +3,13 @@
 @import AppTrackingTransparency;
 @import AdSupport;
 
+@interface RNPermissionHandlerAppTrackingTransparency()
+
+@property (nonatomic, strong) void (^resolve)(RNPermissionStatus status);
+@property (nonatomic, strong) void (^reject)(NSError *error);
+
+@end
+
 @implementation RNPermissionHandlerAppTrackingTransparency
 
 + (NSArray<NSString *> * _Nonnull)usageDescriptionKeys {
@@ -38,12 +45,38 @@ - (void)checkWithResolver:(void (^ _Nonnull)(RNPermissionStatus))resolve
 - (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];
-    }];
+    if ([ATTrackingManager trackingAuthorizationStatus] != ATTrackingManagerAuthorizationStatusNotDetermined) {
+      return [self checkWithResolver:resolve rejecter:reject];
+    }
+
+    if ([[UIApplication sharedApplication] applicationState] == UIApplicationStateActive) {
+      [ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(__unused ATTrackingManagerAuthorizationStatus status) {
+        [self checkWithResolver:resolve rejecter:reject];
+      }];
+    } else {
+      _resolve = resolve;
+      _reject = reject;
+
+      [[NSNotificationCenter defaultCenter] addObserver:self
+                                               selector:@selector(onApplicationDidBecomeActive:)
+                                                   name:UIApplicationDidBecomeActiveNotification
+                                                 object:nil];
+    }
   } else {
     [self checkWithResolver:resolve rejecter:reject];
   }
 }
 
+- (void)onApplicationDidBecomeActive:(__unused NSNotification *)notification {
+  [[NSNotificationCenter defaultCenter] removeObserver:self
+                                                  name:UIApplicationDidBecomeActiveNotification
+                                                object:nil];
+
+  if (@available(iOS 14.0, *)) {
+    [ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(__unused ATTrackingManagerAuthorizationStatus status) {
+      [self checkWithResolver:self->_resolve rejecter:self->_reject];
+    }];
+  }
+}
+
 @end

ios/FaceID/RNPermissionHandlerFaceID.m

@@ -76,7 +76,7 @@ - (void)requestWithResolver:(void (^ _Nonnull)(RNPermissionStatus))resolve
     _laContext = context;
 
     [[NSNotificationCenter defaultCenter] addObserver:self
-                                             selector:@selector(UIApplicationDidBecomeActiveNotification:)
+                                             selector:@selector(onApplicationDidBecomeActive:)
                                                  name:UIApplicationDidBecomeActiveNotification
                                                object:nil];
 
@@ -95,7 +95,7 @@ - (void)invalidateContext {
   [_laContext invalidate];
 }
 
-- (void)UIApplicationDidBecomeActiveNotification:(__unused NSNotification *)notification {
+- (void)onApplicationDidBecomeActive:(__unused NSNotification *)notification {
   [[NSNotificationCenter defaultCenter] removeObserver:self
                                                   name:UIApplicationDidBecomeActiveNotification
                                                 object:nil];

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-permissions",
-  "version": "3.7.0",
+  "version": "3.7.1",
   "license": "MIT",
   "description": "An unified permissions API for React Native on iOS, Android and Windows",
   "author": "Mathieu Acthernoene <[email protected]>",