爲什麼didrecivedlocalnotification方法不起作用？

Question

我有，我有我的class.m文件中設置一個本地通知的應用程序，它是下面顯示： -

-(IBAction)save{ 
NSString *str1=[NSString stringWithFormat:@"%@",txt_date.text]; 
NSString *str2=[NSString stringWithFormat:@" %@",txt_time.text]; 
str1=[str1 stringByAppendingFormat:str2]; 
selected_label.text= str1; 
[[UIApplication sharedApplication] cancelAllLocalNotifications]; 
NSDate *today=[NSDate date]; 
NSDateFormatter* formatter_current = [[[NSDateFormatter alloc] init] autorelease]; 
formatter_current.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"]; 
//Set the required date format 
[formatter_current setDateFormat:@"yyyy-MM-dd hh:mm a"]; 

NSLog(@"current date is =%@",str1); 
today=[formatter_current dateFromString:str1]; 
NSLog(@"current date:-%@",today); 
UILocalNotification* ln = [[UILocalNotification alloc] init]; 
//ln.alertBody = @"Wake Up Sid"; 
//ln.applicationIconBadgeNumber = 1; 
ln.fireDate = today; //[NSDate dateWithTimeIntervalSinceNow:15]; 
ln.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"]; 
NSLog(@"alarm will activate on%@",today); 
NSDateFormatter* formatter_alarm = [[[NSDateFormatter alloc] init] autorelease]; 
NSLocale *uslocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"]; 
[formatter_alarm setLocale:uslocale]; 
[uslocale release]; 
formatter_alarm.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"]; 
[formatter_alarm setDateFormat:@"hh:mm a"]; 
NSString *str=[formatter_alarm stringFromDate:today]; 
NSLog(@"%@",str); 
//ln.alertBody = [NSString stringWithFormat:@"Your first appointment at %@",str]; 
//ln.soundName = UILocalNotificationDefaultSoundName; 
ln.repeatInterval=NSDayCalendarUnit; 
[[UIApplication sharedApplication] scheduleLocalNotification:ln]; 
[ln release]; 

}

和我在的appdelegate文件中使用的代碼是： -

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{ 
// Override point for customization after application launch. 


self.viewController=[[demo_social_updatesViewController alloc]initWithNibName:@"demo_social_updatesViewController" bundle:nil]; 
nav_controller=[[UINavigationController alloc] initWithRootViewController:self.viewController]; 
// Add the view controller's view to the window and display. 
[self.window addSubview:nav_controller.view]; 
[self.window makeKeyAndVisible]; 
appDelegate_acess_token=[[NSUserDefaults standardUserDefaults] stringForKey:@"access_token"]; 
    application.applicationIconBadgeNumber = 0; 
// Handle launching from a notification 
UILocalNotification *localNotif = 
[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey]; 
if (localNotif) { 
    NSLog(@"Recieved Notification %@",localNotif); 
} 
return YES;} 

- （無效）應用：（UIApplication的*）應用didReceiveLocalNotification：（UILocalNotification *）通知{

 NSLog(@"Recieved Notification %@",notification); 

}

現在的錯誤是，當通知生成時，didReceiveLocalNotification不會調用。我如何解決這個錯誤？

感謝在進步......

Answer 1

• （無效）申請：（UIApplication的*）應用程序didReceiveLocalNotification：（UILocalNotification *）通知;當我們點擊本地通知的查看按鈕時，功能會打不開關閉按鈕。