UILocalNotification local notification

// To execute the notification, you must exit the application or suspend the application (enter the background) to receive the notification.

// Create a local notification

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

// Notification trigger time

notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:];

// Notification Time Zone

notification.timeZone = [NSTimeZone defaultTimeZone];

// Notification content

notification.alertBody = ;

// Notification tone

notification.soundName = UILocalNotificationDefaultSoundName;

// Number displayed in the upper-right corner of the application

notification.applicationIconBadgeNumber = ;

// Data dictionary

notification.userInfo = @{: , : @()};

// Start this notification

[[UIApplication sharedApplication] scheduleLocalNotification:notification];

// Enter the foreground and clear the icon in the upper right corner

- ()applicationWillEnterForeground:(UIApplication *

// Click the top notification to enter the application

- ()application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification **alert = [[UIAlertView alloc] initWithTitle: message:notification.userInfo[] :nil cancelButtonTitle:

// Clear all notifications of the current application

[[UIApplication sharedApplication] cancelAllLocalNotifications];