UILocalNotification失败

Question

本地通知从未出现。有人能告诉我为什么吗？

- (IBAction)addReminder:(id)sender {
    self.datePicker.timeZone = [NSTimeZone timeZoneWithName: @"Asia/Tokyo"];
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSString *formatedDate = [dateFormatter stringFromDate:self.datePicker.date];
    NSLog(@"formatedDate>>>>>：%@", formatedDate);
    NSDate *date = [dateFormatter dateFromString:formatedDate];

    NSTimeZone *zone = [NSTimeZone systemTimeZone];
    NSInteger interval = [zone secondsFromGMTForDate: date];
    NSDate *localeDate = [date  dateByAddingTimeInterval: interval];
    NSLog(@"Setting a reminder for %@", localeDate);


    UILocalNotification *localNotif = [[UILocalNotification alloc] init];
    localNotif. fireDate = localeDate;
    localNotif.soundName = UILocalNotificationDefaultSoundName;
    localNotif.alertBody = @"ZEIT!";
    localNotif.alertAction = @"Show me the Timer!";
    localNotif.timeZone = zone;
    localNotif.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] +1;
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
}

结果：

formatedDate>>>>>：2015-08-09 23:32:00 Setting a reminder for 2015-08-09 23:32:00 +0000

Answer 1

确保您正在向用户请求显示通知的权限。

if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]){
    [application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}

Answer 2

致: kmcgrady，谢谢你的回答，但我试过了，它起作用了。

NSDate *now=[NSDate new];
localNotif.fireDate=[now dateByAddingTimeInterval:12];