问题是，我以编程方式放置了一个日期选择器。在日期选择器中，我只是用来显示从 1 分钟到 23 小时的时间。用户应该在选择器中设置时间，并设置通知。现在，我在后台收到通知，但只有一次。我必须重复时间，直到计时器不会停止。
我发现太多的链接和来源，但无法解决这个问题
我的代码：
在 Appdelegate.m 中
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
application.applicationIconBadgeNumber = 0;
//------ Handle launching from a notification-------
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
self.localNotification =[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (self.localNotification)
{
application.applicationIconBadgeNumber = self.localNotification.applicationIconBadgeNumber-1;
NSLog(@"badge number: %d", application.applicationIconBadgeNumber);
[self playSoundWithNotification:self.localNotification];
}
else
{
[[UIApplication sharedApplication]cancelAllLocalNotifications];
}
}
didenterin背景：
- (void)applicationDidEnterBackground:(UIApplication *)application
{
NSLog(@"Application entered background state.");
NSAssert(self->bgTask == UIBackgroundTaskInvalid, nil);
bgTask = [application beginBackgroundTaskWithExpirationHandler: ^{
dispatch_async(dispatch_get_main_queue(), ^{
[application endBackgroundTask:self->bgTask];
self->bgTask = UIBackgroundTaskInvalid;
});
}];
dispatch_async(dispatch_get_main_queue(), ^{
while ([application backgroundTimeRemaining] > 1.0)
{
NSString *str_friend = @"Hello,";
if (str_friend)
{
UILocalNotification *localNotif = [[UILocalNotification alloc] init];
if (localNotif)
{
localNotif.alertBody = [NSString stringWithFormat:
NSLocalizedString(@"%@ has a message for you.", nil), str_friend];
localNotif.alertAction = NSLocalizedString(@"Read Msg", nil);
localNotif.soundName = @"alarmsound.caf";
//localNotif.soundName =[NSString stringWithFormat:@"%@.mp3",str_Alarm];
localNotif.applicationIconBadgeNumber = 1;
[application presentLocalNotificationNow:localNotif];
NSLog(@"sound: %@, alertAction: %@, alerBody: %@",localNotif.soundName, localNotif.alertAction, localNotif.alertBody);
str_friend = nil;
break;
}
}
}
[application endBackgroundTask:self->bgTask];
self->bgTask = UIBackgroundTaskInvalid;
});
}
-
(void)playSoundWithNotification:(UILocalNotification *)notification
{
notification.soundName=[NSString stringWithFormat:@"%@.mp3",str_Alarm];
NSLog(@"soundname: %@",notification.soundName);
}
- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif
{
testDate=notif.fireDate;
NSLog(@"DATE IS: %@, %@",testDate, notif.fireDate);
// Handle the notificaton when the app is running
NSLog(@"Recieved Notification %@",notif);
[self playSoundWithNotification:notif];
[self _showAlert:[NSString stringWithFormat:@"%@",str_Motivation] withTitle:@"Daily Achiever"];
}
- (void) _showAlert:(NSString*)pushmessage withTitle:(NSString*)title
{
UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:title message:pushmessage delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alertView show];
if (alertView)
{
}
}
在我的视图控制器中：
-(void)insert:(NSDate *)fire
{
appDelegate=(AppDelegate *)[[UIApplication sharedApplication] delegate];
appDelegate.localNotification = [[UILocalNotification alloc] init];
NSLog(@"localNotification %@", appDelegate.localNotification);
if (appDelegate.localNotification == nil)
return;
appDelegate.localNotification.fireDate = fire;
appDelegate.localNotification.timeZone = [NSTimeZone defaultTimeZone];
appDelegate.localNotification.alertBody = appDelegate.str_Motivation;
appDelegate.localNotification.alertAction = @"View";
appDelegate.localNotification.soundName = [NSString stringWithFormat:@"%@.mp3",appDelegate.str_Alarm];
appDelegate.localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber]+1;
NSLog(@"localNotification.alertBody %@", appDelegate.localNotification.alertBody);
NSLog(@"localNotification.soundName %@",appDelegate.localNotification.soundName);
[[UIApplication sharedApplication] scheduleLocalNotification:appDelegate.localNotification];
}
请帮忙。