我正在创建一个应用程序，在该应用程序中添加了在您的帐户上发布消息的功能。现在这个设施我正在添加一个用于调度的事件。在该用户的帮助下，可以编写消息并稍后或在特定日期和时间发布。为此，我使用了用户在给定日期生成的本地通知事件。但问题是，当通知生成时，我调用了一个用于在 Facebook 上发布消息的函数。为了生成通知，我使用了以下代码：
-(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];
}
在 appdelegate 文件中，我使用此功能接收通知并调用发布消息功能：
- (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;
}
- (void)applicationDidEnterBackground:(UIApplication *)application{
if (application.applicationIconBadgeNumber == 1) {
BOOL tmp=[Global_Class_parsing post_comment_fb:appDelegate_acess_token uesr_comment:@"testing message111"];
if(tmp){
UIAlertView *av = [[[UIAlertView alloc] initWithTitle:@"Sucessfully posted to photos & wall!"
message:@"Check out your Facebook to see!"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil] autorelease];
[av show];
}
else{
UIAlertView *av = [[[UIAlertView alloc] initWithTitle:@"error"message:@"Check connection!"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil] autorelease];
[av show];
}
}
/*
Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
*/
}
- (void)applicationWillEnterForeground:(UIApplication *)application{
/*
Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
*/
if (application.applicationIconBadgeNumber == 1) {
BOOL tmp=[Global_Class_parsing post_comment_fb:appDelegate_acess_token uesr_comment:@"testing message111"];
if(tmp){
UIAlertView *av = [[[UIAlertView alloc] initWithTitle:@"Sucessfully posted to photos & wall!"
message:@"Check out your Facebook to see!"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil] autorelease];
[av show];
}
else{
UIAlertView *av = [[[UIAlertView alloc] initWithTitle:@"error"message:@"Check connection!"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil] autorelease];
[av show];
}
}
}
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
UIApplicationState state = [application applicationState];
if (state == UIApplicationStateInactive) {
NSLog(@"Recieved Notification %@",notification);
} else {
NSLog(@"Recieved Notification method call.");
}
}
现在的问题是，当通知生成和 applicationbadge 编号变为 1 时，它不会调用任何函数，我的帖子消息函数也不会调用。那么我该如何解决这个错误呢？