Question

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
if (localNotification == nil)
    return;
//localNotification.fireDate = [NSDate dateWithTimeInterval:timeInterval sinceDate:now];
localNotification.fireDate = [NSDate date];
localNotification.repeatInterval = 5*NSSecondCalendarUnit;
localNotification.alertBody = @"Your alert message";
[[UIApplication sharedApplication] cancelAllLocalNotifications];
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

此代码在前5秒后生成通知，然后返回NSMinuteCalendarUnit，我一直试图解决此问题，但没有帮助。

我想每隔5秒设置一次通知然后它应该触发它，直到我强行想要停止它。

有人可以帮忙吗？

Answer 1

repeatInterval的UILocalNotification属于NSCalendarUnit类型而非时间间隔。您只能将NSCalendarUnit枚举中的值指定给它。

如果您想每5秒触发一次本地通知，则需要设置多个通知。

Answer 2

这是代码。每5分钟而不是每周使用一次。

-(void)setLocalNotificationwithOptions :(NSDictionary *)launchOptions
{
     UILocalNotification *localNoti = [launchOptions  objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (localNoti) {
    NSLog(@"Notification:%@",localNoti);
}

[[UIApplication sharedApplication] cancelAllLocalNotifications];

NSCalendar *gregCalendar12 = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];

NSDateComponents *dateComponent12 = [gregCalendar12 components:NSWeekdayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromDate:[NSDate date]];


[dateComponent12 setWeekday:7];
[dateComponent12 setHour:14];
[dateComponent12 setMinute:46];

UILocalNotification *notification12 = [[UILocalNotification alloc]init];
[notification12 setAlertBody:@"ENJOY YOUR WEEKEND!"];
[notification12 setFireDate:[gregCalendar12 dateFromComponents:dateComponent12]];
notification12.repeatInterval = NSMinuteCalendarUnit;
[notification12 setTimeZone:[NSTimeZone defaultTimeZone]];
[[UIApplication sharedApplication] scheduleLocalNotification:notification12];
}

希望这会对你有所帮助。谢谢..

Answer 3

如果你想每5秒重复一次计时器， UILocalNotification每个声音允许持续30秒。所以在你的目录中放一个30秒的声音，然后

[[UIApplication sharedApplication] cancelAllLocalNotifications];
NSDate *date = "set your notification date"
for (int i = 0; i < 10; i++){
    NSDate *repeatTime = [date dateByAddingTimeInterval:300 * i];
    notification.fireDate = repeatTime;
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
}

我试图使用此代码每5秒触发一次本地通知

3 个答案: