Scheduling a notification causes a SecurityException on Android 12

I’m getting a SecurityException: Caller needs to hold android.permission.SCHEDULE_EXACT_ALARM to set exact alarms on the following line: https://github.com/zo0r/react-native-push-notification/blob/e1a07166d5e291a5c117fdbd4b5a45472616e771/android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java#L178

Looks to be new behaviour with API level 31 as per the docs https://developer.android.com/training/scheduling/alarms#exact

The system invokes an exact alarm at a precise moment in the future. If your app targets Android 12 (API level 31) or higher, you must declare the “Alarms & reminders” special app access; otherwise, a SecurityException occurs.

May need to mention somewhere in the docs to add the <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/> in the AndroidManifest.xml.

As this permission can be disabled, the canScheduleExactAlarms() (docs) check looks to be needed before trying to schedule an exact alarm.

I’m happy to make a PR with the proposed changes if needed

[brianlenz]

I used this patch to check canScheduleExactAlarms():

diff --git a/android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java b/android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java
index 248ff0825af89ce82e2c7346ef1edc104b06c91c..a228a63f1033fac9622148de79928fed90e26d95 100644
--- a/android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java
+++ b/android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java
@@ -170,6 +170,12 @@ public class RNPushNotificationHelper {
         if (pendingIntent == null) {
             return;
         }
+        
+        // call canScheduleExactAlarms to confirm the user has allowed alarms to be set. otherwise,
+        // attempting to set an alarm below will crash the app!
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && !getAlarmManager().canScheduleExactAlarms()) {
+            return;
+        }
 
         Log.d(LOG_TAG, String.format("Setting a notification with id %s at time %s",
                 bundle.getString("id"), Long.toString(fireDate)));

[Dallas62]

Hi,

https://github.com/zo0r/react-native-push-notification#state-of-the-repository

Regards