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feat(reminders): snooze + dismiss notification actions

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Add "Snooze" and "Dismiss" action buttons to reminder notifications.

The app is otherwise pure provider-broadcast (the Etar model): the calendar
provider fires EVENT_REMINDER and we post the notification, then mark the
CalendarAlerts row fired. A snoozed reminder has no provider backing — its
row is already fired — so snooze self-schedules an exact alarm to re-show
the same notification, while primary delivery is left unchanged.

- ReminderActionReceiver (not exported): SNOOZE cancels + schedules a
  re-show, DISMISS cancels, SHOW (the alarm) re-posts so it can be snoozed
  or dismissed again.
- ReminderSnoozeScheduler: setExactAndAllowWhileIdle, with an inexact
  allow-while-idle fallback if exact alarms are revoked (API 31-32).
- ReminderNotifier: two actions + cancel().
- snoozeMinutes pref (default 10) in Settings -> Notifications, OptionPicker
  presets 5/10/15/30/60.
- Manifest: USE_EXACT_ALARM + SCHEDULE_EXACT_ALARM (maxSdk 32) + receiver.
- New ic_notification_snooze/_dismiss drawables, duration plurals, en+de
  strings, snooze-pref tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Jean-Luc Makiola
2026-06-21 22:21:01 +02:00
parent d0b6823385
commit 7ab277b434
13 changed files with 348 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
app/src/main/AndroidManifest.xml
View File

@@ -13,6 +13,17 @@
-->
<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
<!--
Re-fire a snoozed reminder at an exact time (the calendar provider won't —
its alert is already fired). USE_EXACT_ALARM is auto-granted to calendar
apps on API 33+; SCHEDULE_EXACT_ALARM covers API 31–32 (user-revocable,
with an inexact fallback if withheld). F-Droid-clean: no Play allowlisting.
-->
<uses-permission
android:name="android.permission.SCHEDULE_EXACT_ALARM"
android:maxSdkVersion="32" />
<uses-permission android:name="android.permission.USE_EXACT_ALARM" />
<!-- Package visibility (Android 11+): without this, getLaunchIntentForPackage
returns null and the calendar manager's per-account "manage" button can't
open the source sync app (DAVx5, ICSx5, Google Calendar, …). The LAUNCHER
@@ -91,6 +102,13 @@
</intent-filter>
</receiver>
<!-- Snooze / dismiss actions on a reminder notification, plus the snooze
re-show alarm. Not exported: only our own notification buttons and
AlarmManager PendingIntents target it. -->
<receiver
android:name=".data.reminders.ReminderActionReceiver"
android:exported="false" />
<!-- Home-screen widgets (Glance). Exported: the launcher/host binds them. -->
<receiver
android:name=".widget.agenda.AgendaWidgetReceiver"

17
app/src/main/java/de/jeanlucmakiola/calendula/data/prefs/SettingsPrefs.kt
View File

@@ -177,6 +177,20 @@ class SettingsPrefs @Inject constructor(
store.edit { it[ALLDAY_REMINDER_TIME_KEY] = minutesOfDay.coerceIn(0, MINUTES_PER_DAY - 1) }
}
/**
* How long the notification "Snooze" action defers a reminder, in minutes.
* Tapping Snooze cancels the notification and re-posts it after this delay
* via an exact alarm (the calendar provider won't re-fire). Default 10 min;
* clamped to at least 1.
*/
val snoozeMinutes: Flow<Int> = store.data.map { prefs ->
(prefs[SNOOZE_MINUTES_KEY] ?: DEFAULT_SNOOZE_MINUTES).coerceAtLeast(1)
}
suspend fun setSnoozeMinutes(minutes: Int) {
store.edit { it[SNOOZE_MINUTES_KEY] = minutes.coerceAtLeast(1) }
}
/**
* Per-calendar overrides of [defaultReminderMinutes] for **timed** events,
* keyed by calendar id. A calendar **present** in the map overrides the global
@@ -243,6 +257,9 @@ class SettingsPrefs @Inject constructor(
/** 09:00 as minutes from midnight; the default all-day reminder fire time. */
internal const val DEFAULT_ALLDAY_REMINDER_TIME = 540
private const val MINUTES_PER_DAY = 1_440
internal val SNOOZE_MINUTES_KEY = intPreferencesKey("snooze_minutes")
/** Default snooze delay for the notification "Snooze" action. */
const val DEFAULT_SNOOZE_MINUTES = 10
internal val CALENDAR_REMINDER_OVERRIDE_KEY =
stringPreferencesKey("per_calendar_reminder_override")
internal val CALENDAR_ALLDAY_REMINDER_OVERRIDE_KEY =

124
app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderActionReceiver.kt Normal file
View File

@@ -0,0 +1,124 @@
package de.jeanlucmakiola.calendula.data.reminders
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import dagger.hilt.android.AndroidEntryPoint
import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.SupervisorJob
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.launch
import javax.inject.Inject
/**
* Handles the "Snooze" and "Dismiss" actions on a reminder notification, plus
* the internal re-show when a snooze elapses. All three are app-internal
* intents (notification action buttons and our own [ReminderSnoozeScheduler]
* alarm), so the receiver is not exported.
*
* - **Dismiss** just cancels the notification — the `CalendarAlerts` row is
* already fired, so nothing re-posts it.
* - **Snooze** cancels the notification and schedules an exact alarm to re-show
* it after the user's snooze delay.
* - **Show** (the alarm) re-posts the same notification, so the user can snooze
* or dismiss it again.
*/
@AndroidEntryPoint
class ReminderActionReceiver : BroadcastReceiver() {
@Inject lateinit var notifier: ReminderNotifier
@Inject lateinit var scheduler: ReminderSnoozeScheduler
@Inject lateinit var settingsPrefs: SettingsPrefs
override fun onReceive(context: Context, intent: Intent) {
val alert = alertFrom(intent) ?: return
when (intent.action) {
ACTION_DISMISS -> notifier.cancel(alert)
ACTION_SNOOZE -> {
// Cancel now so the notification doesn't linger until the alarm;
// the snooze delay read is the only async work.
notifier.cancel(alert)
val pendingResult = goAsync()
CoroutineScope(SupervisorJob() + Dispatchers.IO).launch {
try {
val minutes = settingsPrefs.snoozeMinutes.first()
val triggerAt = System.currentTimeMillis() + minutes * 60_000L
scheduler.schedule(alert, triggerAt)
} finally {
pendingResult.finish()
}
}
}
ACTION_SHOW -> {
val pendingResult = goAsync()
CoroutineScope(SupervisorJob() + Dispatchers.IO).launch {
try {
if (settingsPrefs.remindersEnabled.first() && notifier.canPost()) {
notifier.post(alert)
}
} finally {
pendingResult.finish()
}
}
}
}
}
companion object {
const val ACTION_SNOOZE = "de.jeanlucmakiola.calendula.reminders.SNOOZE"
const val ACTION_DISMISS = "de.jeanlucmakiola.calendula.reminders.DISMISS"
const val ACTION_SHOW = "de.jeanlucmakiola.calendula.reminders.SHOW"
private const val EXTRA_ALERT_ID = "alert_id"
private const val EXTRA_EVENT_ID = "event_id"
private const val EXTRA_BEGIN = "begin"
private const val EXTRA_END = "end"
private const val EXTRA_TITLE = "title"
private const val EXTRA_LOCATION = "location"
private const val EXTRA_ALL_DAY = "all_day"
/** An explicit intent to this receiver carrying [alert] as extras. */
fun intent(context: Context, action: String, alert: ReminderAlert): Intent =
Intent(context, ReminderActionReceiver::class.java).apply {
this.action = action
putExtra(EXTRA_ALERT_ID, alert.alertId)
putExtra(EXTRA_EVENT_ID, alert.eventId)
putExtra(EXTRA_BEGIN, alert.beginMillis)
putExtra(EXTRA_END, alert.endMillis)
putExtra(EXTRA_TITLE, alert.title)
putExtra(EXTRA_LOCATION, alert.location)
putExtra(EXTRA_ALL_DAY, alert.isAllDay)
}
/**
* A stable request code per (alert, action) so the three PendingIntents
* of one notification stay distinct and don't clobber each other.
*/
fun requestCode(alert: ReminderAlert, action: String): Int {
val actionOffset = when (action) {
ACTION_SNOOZE -> 1
ACTION_DISMISS -> 2
ACTION_SHOW -> 3
else -> 0
}
return alert.alertId.toInt() * 8 + actionOffset
}
private fun alertFrom(intent: Intent): ReminderAlert? {
if (!intent.hasExtra(EXTRA_ALERT_ID)) return null
return ReminderAlert(
alertId = intent.getLongExtra(EXTRA_ALERT_ID, 0L),
eventId = intent.getLongExtra(EXTRA_EVENT_ID, 0L),
beginMillis = intent.getLongExtra(EXTRA_BEGIN, 0L),
endMillis = intent.getLongExtra(EXTRA_END, 0L),
title = intent.getStringExtra(EXTRA_TITLE).orEmpty(),
location = intent.getStringExtra(EXTRA_LOCATION),
isAllDay = intent.getBooleanExtra(EXTRA_ALL_DAY, false),
)
}
}
}

23
app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderNotifier.kt
View File

@@ -61,6 +61,16 @@ class ReminderNotifier @Inject constructor(
.setAutoCancel(true)
.setOnlyAlertOnce(true)
.setContentIntent(detailIntent(alert))
.addAction(
R.drawable.ic_notification_snooze,
context.getString(R.string.reminder_action_snooze),
actionIntent(alert, ReminderActionReceiver.ACTION_SNOOZE),
)
.addAction(
R.drawable.ic_notification_dismiss,
context.getString(R.string.reminder_action_dismiss),
actionIntent(alert, ReminderActionReceiver.ACTION_DISMISS),
)
.build()
try {
NotificationManagerCompat.from(context)
@@ -71,6 +81,19 @@ class ReminderNotifier @Inject constructor(
}
}
/** Remove a posted reminder (snooze re-shows it later; dismiss is final). */
fun cancel(alert: ReminderAlert) {
NotificationManagerCompat.from(context).cancel(alert.alertId.toString(), NOTIFICATION_ID)
}
private fun actionIntent(alert: ReminderAlert, action: String): PendingIntent =
PendingIntent.getBroadcast(
context,
ReminderActionReceiver.requestCode(alert, action),
ReminderActionReceiver.intent(context, action, alert),
PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
)
private fun detailIntent(alert: ReminderAlert): PendingIntent = PendingIntent.getActivity(
context,
/* requestCode = */ alert.alertId.toInt(),

55
app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderSnoozeScheduler.kt Normal file
View File

@@ -0,0 +1,55 @@
package de.jeanlucmakiola.calendula.data.reminders
import android.app.AlarmManager
import android.app.PendingIntent
import android.content.Context
import android.os.Build
import androidx.core.content.getSystemService
import dagger.hilt.android.qualifiers.ApplicationContext
import javax.inject.Inject
import javax.inject.Singleton
/**
* Schedules a one-off exact alarm that re-shows a snoozed reminder.
*
* The app otherwise relies entirely on the calendar provider's `EVENT_REMINDER`
* broadcast (the Etar model), but a snoozed reminder has no provider backing —
* its `CalendarAlerts` row is already fired — so we must re-fire it ourselves.
* A snooze that lands late is a broken snooze, hence an *exact* alarm; we fall
* back to an inexact allow-while-idle alarm only if the OS withholds the
* exact-alarm capability (API 31–32 where the user revoked it).
*/
@Singleton
class ReminderSnoozeScheduler @Inject constructor(
@ApplicationContext private val context: Context,
) {
fun schedule(alert: ReminderAlert, triggerAtMillis: Long) {
val alarmManager = context.getSystemService<AlarmManager>() ?: return
val pendingIntent = PendingIntent.getBroadcast(
context,
ReminderActionReceiver.requestCode(alert, ReminderActionReceiver.ACTION_SHOW),
ReminderActionReceiver.intent(context, ReminderActionReceiver.ACTION_SHOW, alert),
PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
)
if (canScheduleExact(alarmManager)) {
alarmManager.setExactAndAllowWhileIdle(
AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent,
)
} else {
// Exact alarms revoked (API 31–32): an inexact wake is the honest
// best we can do without nagging for SCHEDULE_EXACT_ALARM.
alarmManager.setAndAllowWhileIdle(
AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent,
)
}
}
/**
* True on API < 31 (no restriction), and on 31+ when the exact-alarm
* capability is held — auto-granted via `USE_EXACT_ALARM` on API 33+
* (Calendula is a calendar app), user-revocable on 31–32.
*/
private fun canScheduleExact(alarmManager: AlarmManager): Boolean =
Build.VERSION.SDK_INT < Build.VERSION_CODES.S || alarmManager.canScheduleExactAlarms()
}

33
app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsScreen.kt
View File

@@ -63,6 +63,7 @@ import androidx.compose.ui.graphics.vector.ImageVector
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.colorResource
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.res.pluralStringResource
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
@@ -546,6 +547,7 @@ private fun NotificationsScreen(
var showDefaultReminder by remember { mutableStateOf(false) }
var showAllDayReminder by remember { mutableStateOf(false) }
var showAllDayReminderTime by remember { mutableStateOf(false) }
var showSnooze by remember { mutableStateOf(false) }
var overrideDialog by remember { mutableStateOf<OverrideTarget?>(null) }
var expandedCalendars by remember { mutableStateOf(emptySet<Long>()) }
@@ -666,8 +668,27 @@ private fun NotificationsScreen(
},
onClick = { openBatteryOptimizationSettings(context) },
)
// Snooze: how long the notification's "Snooze" action defers a reminder.
Spacer(Modifier.height(24.dp))
GroupedRow(
title = stringResource(R.string.settings_snooze_duration),
summary = snoozeDurationLabel(state.snoozeMinutes),
position = Position.Alone,
onClick = { showSnooze = true },
)
}
if (showSnooze) {
OptionPicker(
title = stringResource(R.string.settings_snooze_duration),
options = SNOOZE_PRESETS,
selected = state.snoozeMinutes,
label = { snoozeDurationLabel(it) },
onSelect = { viewModel.setSnoozeMinutes(it) },
onDismiss = { showSnooze = false },
)
}
if (showDefaultReminder) {
ReminderDefaultPicker(
title = stringResource(R.string.settings_default_reminder),
@@ -792,6 +813,18 @@ private fun openBatteryOptimizationSettings(context: Context) {
*/
private val ALLDAY_REMINDER_PRESETS = listOf(0, 1_440, 2_880, 10_080)
/** Snooze delays offered for the notification "Snooze" action, in minutes. */
private val SNOOZE_PRESETS = listOf(5, 10, 15, 30, 60)
/** A snooze delay as a plain duration ("10 minutes", "1 hour") — no "before". */
@Composable
private fun snoozeDurationLabel(minutes: Int): String =
if (minutes % 60 == 0) {
pluralStringResource(R.plurals.duration_hours, minutes / 60, minutes / 60)
} else {
pluralStringResource(R.plurals.duration_minutes, minutes, minutes)
}
/** A minute-of-day formatted in the device's 12/24-hour convention (e.g. "09:00"). */
private fun formatTimeOfDay(context: Context, minutesOfDay: Int): String {
val time = Calendar.getInstance().apply {

2
app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsUiState.kt
View File

@@ -30,6 +30,8 @@ data class SettingsUiState(
val defaultAllDayReminderMinutes: Int? = null,
/** Wall-clock time (minutes from midnight) all-day reminders fire at; default 09:00. */
val allDayReminderTimeMinutes: Int = SettingsPrefs.DEFAULT_ALLDAY_REMINDER_TIME,
/** How long the notification "Snooze" action defers a reminder; default 10 min. */
val snoozeMinutes: Int = SettingsPrefs.DEFAULT_SNOOZE_MINUTES,
/**
* Per-calendar overrides of [defaultReminderMinutes] for timed events: a
* calendar present in the map overrides the global default (null value = no

13
app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsViewModel.kt
View File

@@ -59,8 +59,11 @@ class SettingsViewModel @Inject constructor(
prefs.defaultReminderMinutes,
prefs.defaultAllDayReminderMinutes,
prefs.allDayReminderTimeMinutes,
) { allowColor, defaultReminder, allDayReminder, allDayReminderTime ->
ReminderDefaults(allowColor, defaultReminder, allDayReminder, allDayReminderTime)
prefs.snoozeMinutes,
) { allowColor, defaultReminder, allDayReminder, allDayReminderTime, snooze ->
ReminderDefaults(
allowColor, defaultReminder, allDayReminder, allDayReminderTime, snooze,
)
},
combine(
prefs.perCalendarReminderOverride,
@@ -75,6 +78,7 @@ class SettingsViewModel @Inject constructor(
defaultReminderMinutes = defaults.defaultReminder,
defaultAllDayReminderMinutes = defaults.allDayReminder,
allDayReminderTimeMinutes = defaults.allDayReminderTime,
snoozeMinutes = defaults.snoozeMinutes,
perCalendarReminderOverride = overrides.timed,
perCalendarAllDayReminderOverride = overrides.allDay,
writableCalendars = overrides.calendars,
@@ -90,6 +94,7 @@ class SettingsViewModel @Inject constructor(
val defaultReminder: Int?,
val allDayReminder: Int?,
val allDayReminderTime: Int,
val snoozeMinutes: Int,
)
private data class ReminderOverrides(
@@ -130,6 +135,10 @@ class SettingsViewModel @Inject constructor(
viewModelScope.launch { prefs.setAllDayReminderTimeMinutes(minutesOfDay) }
}
fun setSnoozeMinutes(minutes: Int) {
viewModelScope.launch { prefs.setSnoozeMinutes(minutes) }
}
fun setCalendarReminderOverride(calendarId: Long, override: CalendarReminderOverride) {
viewModelScope.launch { prefs.setCalendarReminderOverride(calendarId, override) }
}

12
app/src/main/res/drawable/ic_notification_dismiss.xml Normal file
View File

@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Monochrome notification-action mark: Material "close" glyph. -->
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24"
android:tint="?attr/colorControlNormal">
<path
android:fillColor="@android:color/white"
android:pathData="M19,6.41L17.59,5 12,10.59 6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 12,13.41 17.59,19 19,17.59 13.41,12z" />
</vector>

12
app/src/main/res/drawable/ic_notification_snooze.xml Normal file
View File

@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Monochrome notification-action mark: Material "snooze" glyph. -->
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24"
android:tint="?attr/colorControlNormal">
<path
android:fillColor="@android:color/white"
android:pathData="M7.88,3.39L6.6,1.86 2,5.71l1.29,1.53 4.59,-3.85zM22,5.72l-4.6,-3.86 -1.29,1.53 4.6,3.86L22,5.72zM12,4c-4.97,0 -9,4.03 -9,9s4.02,9 9,9c4.97,0 9,-4.03 9,-9s-4.03,-9 -9,-9zM12,20c-3.87,0 -7,-3.13 -7,-7s3.13,-7 7,-7 7,3.13 7,7 -3.13,7 -7,7zM9,11h3.63L9,15.2L9,17h6v-2h-3.63L15,10.8L15,9L9,9z" />
</vector>

12
app/src/main/res/values-de/strings.xml
View File

@@ -177,6 +177,15 @@
<item quantity="one">%d Woche vorher</item>
<item quantity="other">%d Wochen vorher</item>
</plurals>
<!-- Reine Zeitdauern (ohne „vorher"), z. B. die Schlummerdauer. -->
<plurals name="duration_minutes">
<item quantity="one">%d Minute</item>
<item quantity="other">%d Minuten</item>
</plurals>
<plurals name="duration_hours">
<item quantity="one">%d Stunde</item>
<item quantity="other">%d Stunden</item>
</plurals>
<!-- Geteilte Event-Strings -->
<string name="event_untitled">(Ohne Titel)</string>
@@ -194,6 +203,8 @@
<string name="reminder_benefit_reversible_body">Der Schalter liegt in den Einstellungen unter Benachrichtigungen.</string>
<string name="reminder_onboarding_enable_button">Erinnerungen einschalten</string>
<string name="reminder_onboarding_skip_button">Später</string>
<string name="reminder_action_snooze">Schlummern</string>
<string name="reminder_action_dismiss">Verwerfen</string>
<!-- View-Switcher (M1) -->
<string name="view_month">Monat</string>
@@ -265,6 +276,7 @@
<string name="settings_reliable_delivery">Zuverlässige Zustellung</string>
<string name="settings_reliable_delivery_hint">Android verzögert Erinnerungen womöglich, um Akku zu sparen. Nimm Calendula aus, damit sie pünktlich ankommen.</string>
<string name="settings_reliable_delivery_exempt">Von der Akku-Optimierung ausgenommen — Erinnerungen kommen pünktlich.</string>
<string name="settings_snooze_duration">Schlummerdauer</string>
<string name="settings_section_calendars">Kalender</string>
<string name="settings_manage_calendars">Kalender verwalten</string>
<string name="settings_manage_calendars_hint">Lokale Kalender anlegen, synchronisierte verwalten</string>

12
app/src/main/res/values/strings.xml
View File

@@ -178,6 +178,15 @@
<item quantity="one">%d week before</item>
<item quantity="other">%d weeks before</item>
</plurals>
<!-- Plain durations (no "before"), e.g. the snooze delay. -->
<plurals name="duration_minutes">
<item quantity="one">%d minute</item>
<item quantity="other">%d minutes</item>
</plurals>
<plurals name="duration_hours">
<item quantity="one">%d hour</item>
<item quantity="other">%d hours</item>
</plurals>
<!-- Shared event strings -->
<string name="event_untitled">(No title)</string>
@@ -195,6 +204,8 @@
<string name="reminder_benefit_reversible_body">The switch lives in Settings, under Notifications.</string>
<string name="reminder_onboarding_enable_button">Turn on reminders</string>
<string name="reminder_onboarding_skip_button">Not now</string>
<string name="reminder_action_snooze">Snooze</string>
<string name="reminder_action_dismiss">Dismiss</string>
<!-- View switcher (M1) -->
<string name="view_month">Month</string>
@@ -262,6 +273,7 @@
<string name="settings_reliable_delivery">Reliable delivery</string>
<string name="settings_reliable_delivery_hint">Android may delay reminders to save battery. Exempt Calendula so they arrive on time.</string>
<string name="settings_reliable_delivery_exempt">Exempt from battery optimisation — reminders arrive on time.</string>
<string name="settings_snooze_duration">Snooze duration</string>
<string name="settings_section_calendars">Calendars</string>
<string name="settings_manage_calendars">Manage calendars</string>
<string name="settings_manage_calendars_hint">Create local calendars; manage synced ones</string>