Question

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {
    // Handle the notificaton when the app is running

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

    NSLog(@"local notifications count = %d", [[[UIApplication sharedApplication] scheduledLocalNotifications] count]);
}

这是来自app delegate的方法，我需要在通知到达时重新加载表视图。

如何实现reloadData，因为如果我写“[TableViewController.tableView reloadData]”，Xcode将不接受？“

Answer 1

//Just do one thing, as you got the notification , post on more notification as follows in the method ....

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {

[[NSNotificationCenter defaultCenter] postNotificationName:@"RELOAD_DATA"object:nil];
}

//the add observer in viewDidLoad of that view controller where your table is added..

 [[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(receiveTableNotification:) 
    name:@"RELOAD_DATA"
    object:nil];

//and make a method in the same class 

- (void)receiveTableNotification:(NSNotification *)pNotification{
    [your_table_view reloadData];
}

//now remove obser in dealloc in your view controller class where you add observer .. 

- (void) dealloc
{

    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [super dealloc];
 }

Answer 2

而不是TableViewController.tableView使用[self.viewController.tableView reloadData];

如果您当前的视图控制器不是tableView，请考虑使用NSNotificationCenter发布重新加载通知

Answer 3

使用NSNotificationCenter postNotification:机制发布reloadTable通知，您可以通过observer在您的类中捕获tableViewController，以便为您的tableview触发reloadData

Answer 4

请在回调函数

中的app delegate中调用此方法

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {

      UINavigationController *navControl = [[[self tableViewController] viewControllers] objectAtIndex:lastObject]; //
         id Obj = [[navControl viewControllers] lastObject];
                if([Obj isKindOfClass:[Required class]])
                {
                   [Obj reloadDataOfTable];// made an function to desired class.
                }
}

如果当前视图是tableViewController，则不会重新加载iOS TableView

4 个答案: