Added exact alarm debug option

app/src/main/java/eu/faircode/email/AlarmManagerCompatEx.java

@@ -0,0 +1,43 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    FairEmail is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2021 by Marcel Bokhorst (M66B)
+*/
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import androidx.annotation.NonNull;
+import androidx.core.app.AlarmManagerCompat;
+import androidx.preference.PreferenceManager;
+
+public class AlarmManagerCompatEx {
+    static void setAndAllowWhileIdle(
+            @NonNull Context context, @NonNull AlarmManager am,
+            int type, long trigger, @NonNull PendingIntent pi) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        boolean exact_alarms = prefs.getBoolean("exact_alarms", false);
+
+        if (exact_alarms)
+            AlarmManagerCompat.setExactAndAllowWhileIdle(am, type, trigger, pi);
+        else
+            AlarmManagerCompat.setAndAllowWhileIdle(am, type, trigger, pi);
+    }
+}