Check for exact alarm permission

app/src/main/java/org/tasks/jobs/WorkManagerImpl.kt

@@ -10,6 +10,7 @@ import androidx.work.*
 import androidx.work.ExistingWorkPolicy.APPEND_OR_REPLACE
 import androidx.work.ExistingWorkPolicy.REPLACE
 import com.todoroo.andlib.utility.AndroidUtilities
+import com.todoroo.andlib.utility.AndroidUtilities.atLeastS
 import com.todoroo.andlib.utility.DateUtilities
 import com.todoroo.astrid.data.Task
 import kotlinx.coroutines.Dispatchers
@@ -158,7 +159,9 @@ class WorkManagerImpl constructor(
             }
         } else {
             val pendingIntent = notificationPendingIntent
-            alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, time, pendingIntent)
+            if (!atLeastS() || alarmManager.canScheduleExactAlarms()) {
+                alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, time, pendingIntent)
+            }
         }
     }
 

app/src/main/java/org/tasks/scheduling/AlarmManager.java

@@ -1,11 +1,14 @@
 package org.tasks.scheduling;
 
-import android.annotation.SuppressLint;
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastS;
+
 import android.app.PendingIntent;
 import android.content.Context;
-import dagger.hilt.android.qualifiers.ApplicationContext;
+
 import javax.inject.Inject;
 
+import dagger.hilt.android.qualifiers.ApplicationContext;
+
 public class AlarmManager {
 
   private final android.app.AlarmManager alarmManager;
@@ -19,9 +22,10 @@ public class AlarmManager {
     alarmManager.cancel(pendingIntent);
   }
 
-  @SuppressLint("NewApi")
   public void wakeup(long time, PendingIntent pendingIntent) {
-    alarmManager.setExactAndAllowWhileIdle(
-        android.app.AlarmManager.RTC_WAKEUP, time, pendingIntent);
+    if (!atLeastS() || alarmManager.canScheduleExactAlarms()) {
+      alarmManager.setExactAndAllowWhileIdle(
+              android.app.AlarmManager.RTC_WAKEUP, time, pendingIntent);
+    }
   }
 }