Question

我正在安排两个通知，如下所示。该应用程序是一个长期存在的应用程序计划每小时运行一个本地通知。另一个计划每天运行一次。只有第二个预定通知（每小时通知）才会触发。

- (void)scheduleNotification
{
LogInfo(@"IN scheduleNotification - DELETEYESTERDAY NOTIFICATION SCHEDULED.");

UILocalNotification *notif = [[UILocalNotification alloc] init];

NSDictionary *deleteDict = [NSDictionary dictionaryWithObject:@"DeleteYesterday"
                                                          forKey:@"DeleteYesterday"];

NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [[NSDateComponents alloc] init];

components = [[NSCalendar currentCalendar] components:NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit fromDate:[NSDate date]];

NSInteger day = [components day];
NSInteger month = [components month];
NSInteger year = [components year];

[components setDay: day];
[components setMonth: month];
[components setYear: year];
[components setHour: 00];
[components setMinute: 45];
[components setSecond: 0];
[calendar setTimeZone: [NSTimeZone systemTimeZone]];
NSDate *dateToFire = [calendar dateFromComponents:components];

notif.fireDate = dateToFire;
notif.timeZone = [NSTimeZone systemTimeZone];
notif.repeatInterval = NSDayCalendarUnit;
notif.userInfo = deleteDict;

[[UIApplication sharedApplication] scheduleLocalNotification:notif];
}

然后我在上面安排了这个：

- (void)scheduleHeartBeat
{
LogInfo(@"IN scheduleHeartBeat - HEARTBEAT NOTIFICATION SCHEDULED.");

UILocalNotification *heartbeat = [[UILocalNotification alloc] init];

NSDictionary *heartbeatDict = [NSDictionary dictionaryWithObject:@"HeartBeat"
                                                     forKey:@"HeartBeat"];

heartbeat.userInfo = heartbeatDict;

NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [[NSDateComponents alloc] init];

components = [[NSCalendar currentCalendar] components:NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit fromDate:[NSDate date]];

NSInteger day = [components day];
NSInteger month = [components month];
NSInteger year = [components year];

[components setDay: day];
[components setMonth: month];
[components setYear: year];
[components setHour: 00];
[components setMinute: 50];
[components setSecond: 0];
[calendar setTimeZone: [NSTimeZone systemTimeZone]];
NSDate *dateToFire = [calendar dateFromComponents:components];

heartbeat.fireDate = dateToFire;
heartbeat.timeZone = [NSTimeZone systemTimeZone];
heartbeat.repeatInterval = NSHourCalendarUnit;

[[UIApplication sharedApplication] scheduleLocalNotification:heartbeat];
}

当应用程序在主视图控制器的viewDidLoad中启动时，将安排以上内容。

- (void)viewDidLoad
{
[self scheduleNotification];
[self scheduleHeartBeat];

[super viewDidLoad];
//OTHER CODE HERE
}

然后在appdelegate中我有以下内容：

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
LogInfo(@"IN didReceiveLocalNotification NOTIFICATION RECEIVED.");

NSString *notificationHeartBeat = nil;
NSString *notificationDeleteYesterday = nil;

application.applicationIconBadgeNumber = 0;    

if (notification) {
    notificationHeartBeat = [notification.userInfo objectForKey:@"HeartBeat"];
    notificationDeleteYesterday = [notification.userInfo objectForKey:@"DeleteYesterday"];
    LogInfo(@"IN didReceiveLocalNotification HEARTBEAT NOTIFICATION TYPE: %@", notificationHeartBeat);
    LogInfo(@"IN didReceiveLocalNotification DELETEYESTERDAY NOTIFICATION TYPE: %@", notificationDeleteYesterday);
}

if ([notificationHeartBeat isEqualToString:@"HeartBeat"]) {
    //CREATE THE HEARTBEAT
    LogInfo(@"CREATING THE HEARTBEAT.");
    //CALL THE FUNCTIONALITY HERE THAT CREATES HEARTBEAT.
}

if ([notificationDeleteYesterday isEqualToString:@"DeleteYesterday"]) {
    //DELETE YESTERDAYS RECORDS
    LogInfo(@"DELETING YESTERDAYS RECORDS.");

}    
}

最后安排的通知（scheduleHeartBeat）是唯一被触发的通知。有人可以帮我弄清楚为什么会这样吗？

Answer 1

您已将重复间隔指定为NSDayCalendarUnit。因此，您的通知会在指定时间点火，但会在第二天发生。

出于测试目的，更改此重复间隔并检查代码是否正常工作。

我已经测试过了。您的代码在这里正常运行。

多个通知不会被触发

1 个答案: