如何每周從我的應用程序向用戶發出警報聲？

Question

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
[localNotification setFireDate:[NSDate dateWithTimeIntervalSinceNow:3600]];
[localNotification setAlertAction:@"Launch"];
[localNotification setAlertBody:[alertBodyField text]];
[localNotification setHasAction: YES];
[localNotification setApplicationIconBadgeNumber:[[UIApplication sharedApplication] applicationIconBadgeNumber]+1];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
[alertNotification setHidden:NO];

Answer 1

以下是重復時間間隔的列表：

指定日歷單位，例如日和月。

enum {
   NSEraCalendarUnit = kCFCalendarUnitEra,
   NSYearCalendarUnit = kCFCalendarUnitYear,
   NSMonthCalendarUnit = kCFCalendarUnitMonth,
   NSDayCalendarUnit = kCFCalendarUnitDay,
   NSHourCalendarUnit = kCFCalendarUnitHour,
   NSMinuteCalendarUnit = kCFCalendarUnitMinute,
   NSSecondCalendarUnit = kCFCalendarUnitSecond,
   NSWeekCalendarUnit = kCFCalendarUnitWeek,
   NSWeekdayCalendarUnit = kCFCalendarUnitWeekday,
   NSWeekdayOrdinalCalendarUnit = kCFCalendarUnitWeekdayOrdinal,
   NSQuarterCalendarUnit = kCFCalendarUnitQuarter,
   NSWeekOfMonthCalendarUnit = kCFCalendarUnitWeekOfMonth,
   NSWeekOfYearCalendarUnit = kCFCalendarUnitWeekOfYear,
   NSYearForWeekOfYearCalendarUnit = kCFCalendarUnitYearForWeekOfYear
   NSCalendarCalendarUnit = (1 << 20),
   NSTimeZoneCalendarUnit = (1 << 21),
};
typedef NSUInteger NSCalendarUnit;

就您而言：

將重復間隔設置為'NSWeekCalendarUnit'應該可以解決問題。 它與原始通知在同一天和同一時間每周重復一次。

設置通知聲音：

localNotification.soundName = UILocalNotificationDefaultSoundName; // Here you can also use custom sound .

自定義聲音

localNotification.soundName = @"alarm_sound.wav";// put name of sound file

Answer 2

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
[localNotification setFireDate:[NSDate dateWithTimeIntervalSinceNow:3600]];
[localNotification setAlertAction:@"Launch"];
[localNotification setAlertBody:[alertBodyField text]];
[localNotification setHasAction: YES];

// change
localNotification.repeatInterval = NSWeekCalendarUnit;    // set the repeat interval
localNotification.soundName = UILocalNotificationDefaultSoundName; // set alert sound

[localNotification setApplicationIconBadgeNumber:[[UIApplication sharedApplication] applicationIconBadgeNumber]+1];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
[alertNotification setHidden:NO];