Start week on Sunday or Monday

build.gradle

@@ -127,6 +127,7 @@ dependencies {
     compile "com.android.support:support-v13:${SUPPORT_VERSION}"
     compile "com.android.support:cardview-v7:${SUPPORT_VERSION}"
     compile 'com.jakewharton.timber:timber:4.5.1'
+    compile 'com.jakewharton.threetenabp:threetenabp:1.0.5'
     compile 'com.google.guava:guava:20.0'
     compile 'com.jakewharton:process-phoenix:1.1.1'
     compile 'com.google.android.apps.dashclock:dashclock-api:2.0.0'

src/googleplay/java/org/tasks/analytics/Tracker.java

@@ -75,17 +75,21 @@ public class Tracker {
     }
 
     public void reportEvent(Tracking.Events event, String label) {
-        reportEvent(event.category, event.action, label);
+        reportEvent(event, event.action, label);
     }
 
     public void reportEvent(Tracking.Events event, int action, String label) {
+        reportEvent(event, context.getString(action), label);
+    }
+
+    public void reportEvent(Tracking.Events event, String action, String label) {
         reportEvent(event.category, action, label);
     }
 
-    private void reportEvent(int category, int action, String label) {
+    private void reportEvent(int category, String action, String label) {
         HitBuilders.EventBuilder eventBuilder = new HitBuilders.EventBuilder()
                 .setCategory(context.getString(category))
-                .setAction(context.getString(action));
+                .setAction(action);
         if (!Strings.isNullOrEmpty(label)) {
             eventBuilder.setLabel(label);
         }

src/main/java/org/tasks/Tasks.java

@@ -1,5 +1,6 @@
 package org.tasks;
 
+import com.jakewharton.threetenabp.AndroidThreeTen;
 import com.todoroo.astrid.service.StartupService;
 
 import org.tasks.analytics.Tracker;
@@ -27,6 +28,8 @@ public class Tasks extends InjectingApplication {
 
         tracker.setTrackingEnabled(preferences.isTrackingEnabled());
 
+        AndroidThreeTen.init(this);
+
         if (!buildSetup.setup()) {
             return;
         }

src/main/java/org/tasks/activities/DatePickerActivity.java

@@ -11,6 +11,7 @@ import org.tasks.dialogs.NativeDatePickerDialog;
 import org.tasks.injection.ActivityComponent;
 import org.tasks.injection.InjectingAppCompatActivity;
 import org.tasks.preferences.Device;
+import org.tasks.preferences.Preferences;
 import org.tasks.themes.ThemeAccent;
 import org.tasks.themes.ThemeBase;
 import org.tasks.time.DateTime;
@@ -31,6 +32,7 @@ public class DatePickerActivity extends InjectingAppCompatActivity implements Da
     @Inject ThemeBase themeBase;
     @Inject ThemeAccent themeAccent;
     @Inject Device device;
+    @Inject Preferences preferences;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -53,6 +55,10 @@ public class DatePickerActivity extends InjectingAppCompatActivity implements Da
                 dialog.setVersion(DatePickerDialog.Version.VERSION_2);
                 dialog.setThemeDark(themeBase.isDarkTheme(this));
                 dialog.setAccentColor(themeAccent.getAccentColor());
+                int firstDayOfWeek = preferences.getFirstDayOfWeek();
+                if (firstDayOfWeek >= 1 && firstDayOfWeek <= 7) {
+                    dialog.setFirstDayOfWeek(firstDayOfWeek);
+                }
                 dialog.show(fragmentManager, FRAG_TAG_DATE_PICKER);
             }
             dialog.setOnCancelListener(dialogInterface -> finish());

src/main/java/org/tasks/dialogs/NativeDatePickerDialog.java

@@ -1,5 +1,6 @@
 package org.tasks.dialogs;
 
+import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.DatePickerDialog;
 import android.app.Dialog;
@@ -9,11 +10,14 @@ import android.widget.DatePicker;
 
 import org.tasks.injection.InjectingNativeDialogFragment;
 import org.tasks.injection.NativeDialogFragmentComponent;
+import org.tasks.preferences.Preferences;
 import org.tasks.themes.Theme;
 import org.tasks.time.DateTime;
 
 import javax.inject.Inject;
 
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastMarshmallow;
+
 public class NativeDatePickerDialog extends InjectingNativeDialogFragment implements DatePickerDialog.OnDateSetListener {
 
     private static final String EXTRA_YEAR = "extra_year";
@@ -37,6 +41,7 @@ public class NativeDatePickerDialog extends InjectingNativeDialogFragment implem
     }
 
     @Inject Theme theme;
+    @Inject Preferences preferences;
 
     private NativeDatePickerDialogCallback callback;
 
@@ -47,10 +52,15 @@ public class NativeDatePickerDialog extends InjectingNativeDialogFragment implem
         setRetainInstance(true);
     }
 
+    @SuppressLint("NewApi")
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         Bundle args = getArguments();
         DatePickerDialog datePickerDialog = new DatePickerDialog(theme.wrap(getActivity()), this, args.getInt(EXTRA_YEAR), args.getInt(EXTRA_MONTH), args.getInt(EXTRA_DAY));
+        int firstDayOfWeek = preferences.getFirstDayOfWeek();
+        if (firstDayOfWeek >= 1 && firstDayOfWeek <= 7 && atLeastMarshmallow()) {
+            datePickerDialog.getDatePicker().setFirstDayOfWeek(firstDayOfWeek);
+        }
         datePickerDialog.setTitle("");
         return datePickerDialog;
     }

src/main/java/org/tasks/preferences/DateTimePreferences.java

@@ -2,15 +2,23 @@ package org.tasks.preferences;
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.preference.ListPreference;
 import android.preference.Preference;
 import android.widget.Toast;
 
-import org.tasks.injection.ActivityComponent;
-import org.tasks.time.DateTime;
 import org.tasks.R;
 import org.tasks.activities.TimePickerActivity;
+import org.tasks.analytics.Tracker;
+import org.tasks.analytics.Tracking;
+import org.tasks.injection.ActivityComponent;
 import org.tasks.injection.InjectingPreferenceActivity;
+import org.tasks.locale.Locale;
+import org.tasks.time.DateTime;
 import org.tasks.ui.TimePreference;
+import org.threeten.bp.DayOfWeek;
+import org.threeten.bp.format.TextStyle;
+
+import javax.inject.Inject;
 
 public class DateTimePreferences extends InjectingPreferenceActivity implements Preference.OnPreferenceChangeListener {
 
@@ -19,16 +27,38 @@ public class DateTimePreferences extends InjectingPreferenceActivity implements
     private static final int REQUEST_EVENING = 10003;
     private static final int REQUEST_NIGHT = 10004;
 
+    @Inject Locale locale;
+    @Inject Preferences preferences;
+    @Inject Tracker tracker;
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         addPreferencesFromResource(R.xml.preferences_date_time);
 
+        ListPreference startOfWeekPreference = getStartOfWeekPreference();
+        startOfWeekPreference.setEntries(getWeekdayEntries());
+        startOfWeekPreference.setOnPreferenceChangeListener(this);
+
         initializeTimePreference(getMorningPreference(), REQUEST_MORNING);
         initializeTimePreference(getAfternoonPreference(), REQUEST_AFTERNOON);
         initializeTimePreference(getEveningPreference(), REQUEST_EVENING);
         initializeTimePreference(getNightPreference(), REQUEST_NIGHT);
+
+        updateStartOfWeek(preferences.getStringValue(R.string.p_start_of_week));
+    }
+
+    String[] getWeekdayEntries() {
+        return new String[] {
+                getString(R.string.use_locale_default),
+                getWeekdayDisplayName(DayOfWeek.SUNDAY),
+                getWeekdayDisplayName(DayOfWeek.MONDAY)
+        };
+    }
+
+    private String getWeekdayDisplayName(DayOfWeek dayOfWeek) {
+        return dayOfWeek.getDisplayName(TextStyle.FULL, locale.getLocale());
     }
 
     private TimePreference getMorningPreference() {
@@ -85,38 +115,42 @@ public class DateTimePreferences extends InjectingPreferenceActivity implements
 
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
-        int millisOfDay = (int) newValue;
-
-        if (preference.equals(getMorningPreference())) {
-            if (millisOfDay >= getAfternoonPreference().getMillisOfDay()) {
-                mustComeBefore(R.string.date_shortcut_morning, R.string.date_shortcut_afternoon);
-            } else {
-                return true;
-            }
-        } else if (preference.equals(getAfternoonPreference())) {
-            if (millisOfDay <= getMorningPreference().getMillisOfDay()) {
-                mustComeAfter(R.string.date_shortcut_afternoon, R.string.date_shortcut_morning);
-            } else if (millisOfDay >= getEveningPreference().getMillisOfDay()) {
-                mustComeBefore(R.string.date_shortcut_afternoon, R.string.date_shortcut_evening);
-            } else {
-                return true;
-            }
-        } else if (preference.equals(getEveningPreference())) {
-            if (millisOfDay <= getAfternoonPreference().getMillisOfDay()) {
-                mustComeAfter(R.string.date_shortcut_evening, R.string.date_shortcut_afternoon);
-            } else if (millisOfDay >= getNightPreference().getMillisOfDay()) {
-                mustComeBefore(R.string.date_shortcut_evening, R.string.date_shortcut_night);
-            } else {
-                return true;
-            }
-        } else if (preference.equals(getNightPreference())) {
-            if (millisOfDay <= getEveningPreference().getMillisOfDay()) {
-                mustComeAfter(R.string.date_shortcut_night, R.string.date_shortcut_evening);
-            } else {
-                return true;
+        if (preference.equals(getStartOfWeekPreference())) {
+            updateStartOfWeek(newValue.toString());
+        } else {
+            int millisOfDay = (int) newValue;
+
+            if (preference.equals(getMorningPreference())) {
+                if (millisOfDay >= getAfternoonPreference().getMillisOfDay()) {
+                    mustComeBefore(R.string.date_shortcut_morning, R.string.date_shortcut_afternoon);
+                    return false;
+                }
+            } else if (preference.equals(getAfternoonPreference())) {
+                if (millisOfDay <= getMorningPreference().getMillisOfDay()) {
+                    mustComeAfter(R.string.date_shortcut_afternoon, R.string.date_shortcut_morning);
+                    return false;
+                } else if (millisOfDay >= getEveningPreference().getMillisOfDay()) {
+                    mustComeBefore(R.string.date_shortcut_afternoon, R.string.date_shortcut_evening);
+                    return false;
+                }
+            } else if (preference.equals(getEveningPreference())) {
+                if (millisOfDay <= getAfternoonPreference().getMillisOfDay()) {
+                    mustComeAfter(R.string.date_shortcut_evening, R.string.date_shortcut_afternoon);
+                    return false;
+                } else if (millisOfDay >= getNightPreference().getMillisOfDay()) {
+                    mustComeBefore(R.string.date_shortcut_evening, R.string.date_shortcut_night);
+                    return false;
+                }
+            } else if (preference.equals(getNightPreference())) {
+                if (millisOfDay <= getEveningPreference().getMillisOfDay()) {
+                    mustComeAfter(R.string.date_shortcut_night, R.string.date_shortcut_evening);
+                    return false;
+                }
             }
         }
-        return false;
+
+        tracker.reportEvent(Tracking.Events.SET_PREFERENCE, preference.getKey(), newValue.toString());
+        return true;
     }
 
     private void mustComeBefore(int settingResId, int relativeResId) {
@@ -134,6 +168,17 @@ public class DateTimePreferences extends InjectingPreferenceActivity implements
                 .show();
     }
 
+    private void updateStartOfWeek(String value) {
+        ListPreference preference = getStartOfWeekPreference();
+        int index = preference.findIndexOfValue(value);
+        String summary = getWeekdayEntries()[index];
+        preference.setSummary(summary);
+    }
+
+    private ListPreference getStartOfWeekPreference() {
+        return (ListPreference) findPreference(R.string.p_start_of_week);
+    }
+
     @Override
     public void inject(ActivityComponent component) {
         component.inject(this);

src/main/java/org/tasks/preferences/Preferences.java

@@ -104,6 +104,11 @@ public class Preferences {
         return atLeastMarshmallow() && getBoolean(R.string.p_doze_notifications, false);
     }
 
+    public int getFirstDayOfWeek() {
+        int firstDayOfWeek = getIntegerFromString(R.string.p_start_of_week, 0);
+        return firstDayOfWeek < 1 || firstDayOfWeek > 7 ? 0 : firstDayOfWeek;
+    }
+
     public void clear() {
         prefs
                 .edit()

src/main/res/values-ar/strings.xml

@@ -201,6 +201,5 @@
 	<string name="master_sync_warning">المزامنة التلقائية معطلة الآن من طرف أندرويد</string>
 	<string name="settings_localization">تخصيص اللغة و الجهة</string>
 	<string name="layout_direction">إتجاه التنسيق</string>
-	<string name="layout_direction_locale">إستخدام الإتجاه المحلي</string>
 	<string name="layout_direction_left_to_right">من اليمين إلى اليسار</string>
 </resources>

src/main/res/values-bg-rBG/strings.xml

@@ -396,7 +396,6 @@
 	<string name="restart_later">По-късно</string>
 	<string name="settings_localization">Локализация</string>
 	<string name="layout_direction">Направление на изгледа</string>
-	<string name="layout_direction_locale">Използвай направление според местополжението</string>
 	<string name="layout_direction_left_to_right">Отляво надясно</string>
 	<string name="layout_direction_right_to_left">Отдясно наляво</string>
 	<string name="led_notification">LED нотификация</string>

src/main/res/values-cs/strings.xml

@@ -342,7 +342,6 @@
 	<string name="restart_later">Později</string>
 	<string name="settings_localization">Překlad</string>
 	<string name="layout_direction">Orientace</string>
-	<string name="layout_direction_locale">Použít lokální směr</string>
 	<string name="layout_direction_left_to_right">Zleva do prava</string>
 	<string name="layout_direction_right_to_left">Zprava do leva</string>
 	<string name="led_color">Barva LED</string>

src/main/res/values-de/strings.xml

@@ -384,7 +384,6 @@
 	<string name="restart_later">Später</string>
 	<string name="settings_localization">Übersetzung</string>
 	<string name="layout_direction">Schreibrichtung</string>
-	<string name="layout_direction_locale">Aus Systemeinstellungen</string>
 	<string name="layout_direction_left_to_right">Links nach rechts</string>
 	<string name="layout_direction_right_to_left">Rechts nach links</string>
 	<string name="led_notification">Benachrichtigungs-LED</string>

src/main/res/values-es/strings.xml

@@ -390,7 +390,6 @@
 	<string name="restart_later">Más tarde</string>
 	<string name="settings_localization">Configuración regional</string>
 	<string name="layout_direction">Sentido de la escritura</string>
-	<string name="layout_direction_locale">Usar disposición regional</string>
 	<string name="layout_direction_left_to_right">De izquierda a derecha</string>
 	<string name="layout_direction_right_to_left">De derecha a izquierda</string>
 	<string name="led_notification">Notificación de la LED</string>

src/main/res/values-fa/strings.xml

@@ -271,7 +271,6 @@
 	<string name="language">زبان</string>
 	<string name="settings_localization">محلی‌سازی</string>
 	<string name="layout_direction">چینش صفحه</string>
-	<string name="layout_direction_locale">از چینش محلی استفاده کن</string>
 	<string name="layout_direction_left_to_right">چپ به راست</string>
 	<string name="layout_direction_right_to_left">راست به چپ</string>
 </resources>

src/main/res/values-fi/strings.xml

@@ -395,7 +395,6 @@
 	<string name="restart_later">Myöhemmin</string>
 	<string name="settings_localization">Paikallistaminen</string>
 	<string name="layout_direction">Asettelun suunta</string>
-	<string name="layout_direction_locale">Käytä paikallista asetusta</string>
 	<string name="layout_direction_left_to_right">Vasemmalta oikealle</string>
 	<string name="layout_direction_right_to_left">Oikealta vasemmalle</string>
 	<string name="led_notification">LED muistutus</string>

src/main/res/values-fr/strings.xml

@@ -382,7 +382,6 @@
 	<string name="restart_later">Plus tard</string>
 	<string name="settings_localization">Localisation</string>
 	<string name="layout_direction">Direction de lecture</string>
-	<string name="layout_direction_locale">Utiliser les directions locales</string>
 	<string name="layout_direction_left_to_right">Gauche à droite</string>
 	<string name="layout_direction_right_to_left">Droite à gauche</string>
 	<string name="led_notification">Notification de la LED</string>

src/main/res/values-gl/strings.xml

@@ -390,7 +390,6 @@
 	<string name="restart_later">Más tarde</string>
 	<string name="settings_localization">Configuración regional</string>
 	<string name="layout_direction">Sentido de la escritura</string>
-	<string name="layout_direction_locale">Usar disposición regional</string>
 	<string name="layout_direction_left_to_right">De izquierda a derecha</string>
 	<string name="layout_direction_right_to_left">De derecha a izquierda</string>
 	<string name="led_notification">Notificación de la LED</string>

src/main/res/values-hu/strings.xml

@@ -396,7 +396,6 @@
 	<string name="restart_later">Később</string>
 	<string name="settings_localization">Lokalizáció</string>
 	<string name="layout_direction">Szövegirány</string>
-	<string name="layout_direction_locale">Nyelv alapértelmezés használata</string>
 	<string name="layout_direction_left_to_right">Balról jobbra</string>
 	<string name="layout_direction_right_to_left">Jobbról balra</string>
 	<string name="led_notification">LED értesítés</string>

src/main/res/values-it/strings.xml

@@ -393,7 +393,6 @@
 	<string name="restart_later">Dopo</string>
 	<string name="settings_localization">Localizzazione</string>
 	<string name="layout_direction">Direzione Layout</string>
-	<string name="layout_direction_locale">Utilizza la direzione locale</string>
 	<string name="layout_direction_left_to_right">Da sinistra a destra</string>
 	<string name="layout_direction_right_to_left">Da destra a sinistra</string>
 	<string name="led_notification">LED di notifica</string>

src/main/res/values-iw/strings.xml

@@ -394,7 +394,6 @@
 	<string name="restart_later">מאוחר יותר</string>
 	<string name="settings_localization">לוקאליזציה</string>
 	<string name="layout_direction">כיוון הממשק</string>
-	<string name="layout_direction_locale">לפי השפה</string>
 	<string name="layout_direction_left_to_right">משמאל לימין</string>
 	<string name="layout_direction_right_to_left">מימין לשמאל</string>
 	<string name="led_notification">תאורת התראות</string>

src/main/res/values-ja/strings.xml

@@ -394,7 +394,6 @@
 	<string name="restart_later">後で</string>
 	<string name="settings_localization">ローカライズ</string>
 	<string name="layout_direction">レイアウトの向き</string>
-	<string name="layout_direction_locale">ロケールの向きを使用する</string>
 	<string name="layout_direction_left_to_right">左から右</string>
 	<string name="layout_direction_right_to_left">右から左</string>
 	<string name="led_notification">LED 通知</string>

src/main/res/values-nl/strings.xml

@@ -384,7 +384,6 @@
 	<string name="restart_now">Herstart nu</string>
 	<string name="settings_localization">Vertalingen</string>
 	<string name="layout_direction">Layout richting</string>
-	<string name="layout_direction_locale">Gebruik lokale richting</string>
 	<string name="layout_direction_left_to_right">Links naar rechts</string>
 	<string name="layout_direction_right_to_left">Rechts naar links</string>
 	<string name="led_notification">LED notificatie</string>

src/main/res/values-pl/strings.xml

@@ -392,7 +392,6 @@
 	<string name="restart_later">Póżniej</string>
 	<string name="settings_localization">Ustawienia regionalne</string>
 	<string name="layout_direction">Kierunek tekstów</string>
-	<string name="layout_direction_locale">Użyj lokalnych ustawień</string>
 	<string name="layout_direction_left_to_right">Od lewa do prawa</string>
 	<string name="layout_direction_right_to_left">Od prawa do lewa</string>
 	<string name="led_notification">Powiadomienie LED</string>

src/main/res/values-ru/strings.xml

@@ -393,7 +393,6 @@
 	<string name="restart_later">Позже</string>
 	<string name="settings_localization">Локализация</string>
 	<string name="layout_direction">Ориентация интерфейса</string>
-	<string name="layout_direction_locale">Как в системе</string>
 	<string name="layout_direction_left_to_right">Слева направо</string>
 	<string name="layout_direction_right_to_left">Справа налево</string>
 	<string name="led_notification">LED уведомления</string>

src/main/res/values-sr/strings.xml

@@ -25,7 +25,6 @@
 	<string name="default_priority">Podrazumevano</string>
 	<string name="low_priority">Nisak</string>
 	<string name="layout_direction">Raspored komandi</string>
-	<string name="layout_direction_locale">Koristi sistemski raspored komandi</string>
 	<string name="layout_direction_left_to_right">Sleva nadesno</string>
 	<string name="layout_direction_right_to_left">Zdesna nalevo</string>
 </resources>

src/main/res/values-sv/strings.xml

@@ -383,7 +383,6 @@
 	<string name="restart_now">Starta om nu</string>
 	<string name="restart_later">Senare</string>
 	<string name="settings_localization">Språk</string>
-	<string name="layout_direction_locale">Använd språkets standard</string>
 	<string name="layout_direction_left_to_right">Vänster till höger</string>
 	<string name="layout_direction_right_to_left">Höger till vänster</string>
 	<string name="led_notification">LED Notifiering</string>

src/main/res/values-uk/strings.xml

@@ -396,7 +396,6 @@
 	<string name="restart_later">Пізніше</string>
 	<string name="settings_localization">Локалізація</string>
 	<string name="layout_direction">Напрям письма</string>
-	<string name="layout_direction_locale">Використовувати напрям пристрою</string>
 	<string name="layout_direction_left_to_right">Зліва направо</string>
 	<string name="layout_direction_right_to_left">Зправа наліво</string>
 	<string name="led_notification">LED-сповіщення</string>

src/main/res/values-zh-rTW/strings.xml

@@ -245,7 +245,6 @@
 	<string name="settings_general">一般</string>
 	<string name="language">語言</string>
 	<string name="layout_direction">排版方向</string>
-	<string name="layout_direction_locale">使用當地方向</string>
 	<string name="layout_direction_left_to_right">由左至右</string>
 	<string name="layout_direction_right_to_left">由右至左</string>
 	<string name="led_color">LED 顏色</string>

src/main/res/values/arrays.xml

@@ -185,7 +185,7 @@
     </string-array>
 
     <string-array name="layout_direction_entries">
-        <item>@string/layout_direction_locale</item>
+        <item>@string/use_locale_default</item>
         <item>@string/layout_direction_left_to_right</item>
         <item>@string/layout_direction_right_to_left</item>
     </string-array>
@@ -253,4 +253,10 @@
         <item>@string/repeat_type_due</item>
         <item>@string/repeat_type_completion</item>
     </string-array>
+
+    <string-array name="day_of_week_values">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+    </string-array>
 </resources>

src/main/res/values/keys.xml

@@ -318,5 +318,6 @@
   <string name="debug_consume_purchases">Consume purchases</string>
   <string name="debug">Debug</string>
   <string name="p_rmd_show_description">rmd_show_description</string>
+  <string name="p_start_of_week">start_of_week</string>
 
 </resources>

src/main/res/values/strings.xml

@@ -797,7 +797,6 @@ File %1$s contained %2$s.\n\n
   <string name="restart_later">Later</string>
   <string name="settings_localization">Localization</string>
   <string name="layout_direction">Layout direction</string>
-  <string name="layout_direction_locale">Use locale direction</string>
   <string name="layout_direction_left_to_right">Left to right</string>
   <string name="layout_direction_right_to_left">Right to left</string>
   <string name="led_notification">LED notification</string>
@@ -819,5 +818,6 @@ File %1$s contained %2$s.\n\n
   <string name="delete_selected_tasks">Delete selected tasks?</string>
   <string name="copy_selected_tasks">Copy selected tasks?</string>
   <string name="date_and_time">Date and time</string>
-
+  <string name="start_of_week">Start of week</string>
+  <string name="use_locale_default">Use locale default</string>
 </resources>

src/main/res/xml/preferences_date_time.xml

@@ -1,6 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <ListPreference
+        android:defaultValue="0"
+        android:entryValues="@array/day_of_week_values"
+        android:key="@string/p_start_of_week"
+        android:title="@string/start_of_week" />
+
     <org.tasks.ui.TimePreference
         android:defaultValue="@integer/default_morning"
         android:key="@string/p_date_shortcut_morning"