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);
+    }
+}

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

@@ -40,7 +40,6 @@ import android.util.Pair;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.core.app.AlarmManagerCompat;
 import androidx.core.app.NotificationCompat;
 import androidx.core.app.Person;
 import androidx.core.app.RemoteInput;
@@ -1750,7 +1749,7 @@ class Core {
                     context, ServiceSend.PI_EXISTS, intent, PendingIntent.FLAG_UPDATE_CURRENT);
 
             AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
-            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, next, piExists);
+            AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, next, piExists);
             return;
         }
 

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

@@ -27,7 +27,6 @@ import android.content.SharedPreferences;
 import android.text.TextUtils;
 
 import androidx.annotation.NonNull;
-import androidx.core.app.AlarmManagerCompat;
 import androidx.preference.PreferenceManager;
 import androidx.room.ColumnInfo;
 import androidx.room.Entity;
@@ -464,7 +463,7 @@ public class EntityMessage implements Serializable {
             am.cancel(pi);
         } else {
             Log.i("Set snooze id=" + id + " wakeup=" + new Date(wakeup));
-            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, wakeup, pi);
+            AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, wakeup, pi);
         }
     }
 

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

@@ -118,6 +118,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private SwitchCompat swAuthLogin;
     private SwitchCompat swAuthNtlm;
     private SwitchCompat swAuthSasl;
+    private SwitchCompat swExactAlarms;
     private TextView tvProcessors;
     private TextView tvMemoryClass;
     private TextView tvMemoryUsage;
@@ -142,7 +143,8 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             "experiments", "wal", "query_threads", "crash_reports", "cleanup_attachments",
             "protocol", "debug", "log_level",
             "use_modseq", "perform_expunge",
-            "auth_plain", "auth_login", "auth_ntlm", "auth_sasl"
+            "auth_plain", "auth_login", "auth_ntlm", "auth_sasl",
+            "exact_alarms"
     };
 
     private final static String[] RESET_QUESTIONS = new String[]{
@@ -222,6 +224,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swAuthLogin = view.findViewById(R.id.swAuthLogin);
         swAuthNtlm = view.findViewById(R.id.swAuthNtlm);
         swAuthSasl = view.findViewById(R.id.swAuthSasl);
+        swExactAlarms = view.findViewById(R.id.swExactAlarms);
         tvProcessors = view.findViewById(R.id.tvProcessors);
         tvMemoryClass = view.findViewById(R.id.tvMemoryClass);
         tvMemoryUsage = view.findViewById(R.id.tvMemoryUsage);
@@ -577,6 +580,13 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             }
         });
 
+        swExactAlarms.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("exact_alarms", checked).apply();
+            }
+        });
+
         btnGC.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -946,6 +956,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         swAuthLogin.setChecked(prefs.getBoolean("auth_login", true));
         swAuthNtlm.setChecked(prefs.getBoolean("auth_ntlm", true));
         swAuthSasl.setChecked(prefs.getBoolean("auth_sasl", true));
+        swExactAlarms.setChecked(prefs.getBoolean("exact_alarms", false));
 
         tvProcessors.setText(getString(R.string.title_advanced_processors, Runtime.getRuntime().availableProcessors()));
 

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

@@ -35,7 +35,6 @@ import android.os.PowerManager;
 import android.text.TextUtils;
 
 import androidx.annotation.NonNull;
-import androidx.core.app.AlarmManagerCompat;
 import androidx.core.app.NotificationCompat;
 import androidx.core.content.ContextCompat;
 import androidx.lifecycle.Observer;
@@ -840,7 +839,7 @@ public class ServiceSend extends ServiceBase implements SharedPreferences.OnShar
         long trigger = System.currentTimeMillis() + delay;
         AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
         am.cancel(pi);
-        AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, trigger, pi);
+        AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, trigger, pi);
     }
 
     static void watchdog(Context context) {

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

@@ -40,7 +40,6 @@ import android.text.TextUtils;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
-import androidx.core.app.AlarmManagerCompat;
 import androidx.core.app.NotificationCompat;
 import androidx.core.content.ContextCompat;
 import androidx.lifecycle.MediatorLiveData;
@@ -150,7 +149,8 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
             "download_headers", "download_eml",
             "prefer_ip4", "standalone_vpn", "tcp_keep_alive", "ssl_harden", // force reconnect
             "experiments", "debug", "protocol", // force reconnect
-            "auth_plain", "auth_login", "auth_ntlm", "auth_sasl" // force reconnect
+            "auth_plain", "auth_login", "auth_ntlm", "auth_sasl", // force reconnect
+            "exact_alarms" // force schedule
     ));
 
     static final int PI_ALARM = 1;
@@ -1900,7 +1900,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                             long trigger = System.currentTimeMillis() + duration;
                             EntityLog.log(this, "### " + account.name + " keep alive" +
                                     " wait=" + account.poll_interval + " until=" + new Date(trigger));
-                            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, trigger, pi);
+                            AlarmManagerCompatEx.setAndAllowWhileIdle(ServiceSynchronize.this, am, AlarmManager.RTC_WAKEUP, trigger, pi);
 
                             try {
                                 wlAccount.release();
@@ -2108,7 +2108,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                         try {
                             long trigger = System.currentTimeMillis() + backoff * 1000L;
                             EntityLog.log(this, "### " + account.name + " backoff until=" + new Date(trigger));
-                            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, trigger, pi);
+                            AlarmManagerCompatEx.setAndAllowWhileIdle(ServiceSynchronize.this, am, AlarmManager.RTC_WAKEUP, trigger, pi);
 
                             try {
                                 db.account().setAccountBackoff(account.id, trigger);
@@ -2451,7 +2451,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
             Log.i("Schedule next=" + new Date(next));
             Log.i("Schedule poll=" + poll);
 
-            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, next, pi);
+            AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, next, pi);
 
             if (sync & poll) {
                 at = now + 30 * 1000L;
@@ -2484,10 +2484,10 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
 
                 EntityLog.log(context, "Poll next=" + new Date(next));
 
-                AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, next, piSync);
+                AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, next, piSync);
             }
         } else
-            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, at, piSync);
+            AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, at, piSync);
     }
 
     static long[] getSchedule(Context context) {
@@ -2598,7 +2598,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
             if (next < now + WATCHDOG_INTERVAL / 5)
                 next += WATCHDOG_INTERVAL;
             Log.i("Sync watchdog at " + new Date(next));
-            AlarmManagerCompat.setAndAllowWhileIdle(am, AlarmManager.RTC_WAKEUP, next, pi);
+            AlarmManagerCompatEx.setAndAllowWhileIdle(context, am, AlarmManager.RTC_WAKEUP, next, pi);
         } else
             am.cancel(pi);
     }

app/src/main/res/layout/fragment_options_misc.xml

@@ -601,6 +601,17 @@
             app:layout_constraintTop_toBottomOf="@id/swAuthNtlm"
             app:switchPadding="12dp" />
 
+        <androidx.appcompat.widget.SwitchCompat
+            android:id="@+id/swExactAlarms"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_advanced_exact_alarms"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/swAuthSasl"
+            app:switchPadding="12dp" />
+
         <eu.faircode.email.FixedTextView
             android:id="@+id/tvProcessors"
             android:layout_width="0dp"
@@ -610,7 +621,7 @@
             android:textAppearance="@style/TextAppearance.AppCompat.Small"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/swAuthSasl" />
+            app:layout_constraintTop_toBottomOf="@id/swExactAlarms" />
 
         <eu.faircode.email.FixedTextView
             android:id="@+id/tvMemoryClass"
@@ -708,6 +719,7 @@
             swQueries,tvQueriesHint,tvQueriesRemark,swWal,
             swModSeq,swExpunge,
             swAuthPlain,swAuthLogin,swAuthNtlm,swAuthSasl,
+            swExactAlarms,
             tvProcessors,tvMemoryClass,tvMemoryUsage,tvStorageUsage,
             tvFingerprint,
             btnGC,btnCharsets,btnCiphers,btnFiles" />

app/src/main/res/values/strings.xml

@@ -296,6 +296,7 @@
 
     <string name="title_advanced_receive">Receive messages for all accounts</string>
     <string name="title_advanced_when">When</string>
+    <string name="title_advanced_optimize">Automatically optimize</string>
     <string name="title_advanced_always">Always receive messages for these accounts</string>
     <string name="title_advanced_schedule">Schedule</string>
     <string name="title_advanced_advanced">Advanced</string>
@@ -433,6 +434,9 @@
 
     <string name="title_advanced_sync_on_launch">Synchronize on start</string>
     <string name="title_advanced_double_back">Double \'back\' to exit</string>
+    <string name="title_advanced_conversation_actions">Suggest actions (Android 10+)</string>
+    <string name="title_advanced_conversation_actions_replies">Suggest reply texts (Android 10+)</string>
+    <string name="title_advanced_language_detection">Detect message text language</string>
     <string name="title_advanced_pull_refresh">Pull down to refresh</string>
     <string name="title_advanced_autoscroll">Scroll to top on receiving new messages</string>
     <string name="title_advanced_double_tap">Double tap to mark message read/unread</string>
@@ -533,9 +537,6 @@
 
     <string name="title_advanced_external_search">Allow other apps to search in messages</string>
     <string name="title_advanced_shortcuts">Show frequently used contacts in Android share menu</string>
-    <string name="title_advanced_conversation_actions">Suggest actions (Android 10+)</string>
-    <string name="title_advanced_conversation_actions_replies">Suggest reply texts (Android 10+)</string>
-    <string name="title_advanced_language_detection">Detect message text language</string>
     <string name="title_advanced_fts">Build search index</string>
     <string name="title_advanced_fts_indexed">%1$d / %2$d messages indexed (%3$s)</string>
     <string name="title_advanced_classification">Classify messages</string>
@@ -544,27 +545,27 @@
     <string name="title_advanced_language">Language</string>
     <string name="title_advanced_language_system">System</string>
     <string name="title_advanced_watchdog">Periodically check if FairEmail is still active</string>
-    <string name="title_advanced_modseq" translatable="false">MODSEQ (debug only)</string>
-    <string name="title_advanced_expunge" translatable="false">EXPUNGE (debug only)</string>
-    <string name="title_advanced_auth_plain" translatable="false">PLAIN (debug only)</string>
-    <string name="title_advanced_auth_login" translatable="false">LOGIN (debug only)</string>
-    <string name="title_advanced_auth_ntlm" translatable="false">NTLM (debug only)</string>
-    <string name="title_advanced_auth_sasl" translatable="false">SASL (debug only)</string>
-    <string name="title_advanced_optimize">Automatically optimize</string>
     <string name="title_advanced_updates">Check for GitHub updates</string>
     <string name="title_advanced_check_weekly">Check weekly instead of daily</string>
     <string name="title_advanced_experiments">Try experimental features</string>
-    <string name="title_advanced_query_threads">Limit parallel database access</string>
-    <string name="title_advanced_wal">WAL (debug only)</string>
     <string name="title_advanced_crash_reports">Send error reports</string>
-    <string name="title_advanced_protocol">Protocol logging</string>
-    <string name="title_advanced_log_info">Debug logging</string>
-    <string name="title_advanced_debug">Debug mode</string>
     <string name="title_advanced_cleanup_attachments">Delete attachments of old messages</string>
     <string name="title_advanced_cleanup">Cleanup</string>
     <string name="title_advanced_last_cleanup">Last cleanup: %1$s</string>
     <string name="title_advanced_app">App settings</string>
     <string name="title_advanced_more">More options</string>
+    <string name="title_advanced_protocol">Protocol logging</string>
+    <string name="title_advanced_log_info">Debug logging</string>
+    <string name="title_advanced_debug">Debug mode</string>
+    <string name="title_advanced_query_threads">Limit parallel database access</string>
+    <string name="title_advanced_wal" translatable="false">WAL (debug only)</string>
+    <string name="title_advanced_modseq" translatable="false">MODSEQ (debug only)</string>
+    <string name="title_advanced_expunge" translatable="false">EXPUNGE (debug only)</string>
+    <string name="title_advanced_auth_plain" translatable="false">PLAIN (debug only)</string>
+    <string name="title_advanced_auth_login" translatable="false">LOGIN (debug only)</string>
+    <string name="title_advanced_auth_ntlm" translatable="false">NTLM (debug only)</string>
+    <string name="title_advanced_auth_sasl" translatable="false">SASL (debug only)</string>
+    <string name="title_advanced_exact_alarms" translatable="false">Use exact timers (debug only)</string>
     <string name="title_advanced_processors" translatable="false">Processors: %1$d</string>
     <string name="title_advanced_memory_class" translatable="false">Memory class: %1$s/%2$s Total: %3$s</string>
     <string name="title_advanced_memory_usage" translatable="false">Memory usage: %1$s/%2$s Native: %3$s</string>