// 創建一個本地推送UILocalNotification *notification = [[[UILocalNotification alloc] init] autorelease];//設置10秒之后NSDate *pushDate = [NSDate dateWithTimeIntervalSinceNow:10];if (notification != nil) { // 設置推送時間 notification.fireDate = pushDate; // 設置時區 notification.timeZone = [NSTimeZone defaultTimeZone]; // 設置重復間隔 notification.repeatInterval = kCFCalendarUnitDay; // 推送聲音 notification.soundName = UILocalNotificationDefaultSoundName; // 推送內容 notification.alertBody = @"推送內容"; //顯示在icon上的紅色圈中的數子 notification.applicationIconBadgeNumber = 1; //設置userinfo 方便在之后需要撤銷的時候使用 NSDictionary *info = [NSDictionary dictionaryWithObject:@"name"forKey:@"key"]; notification.userInfo = info; //添加推送到UIApplication   UIApplication *app = [UIApplication sharedApplication]; [app scheduleLocalNotification:notification];  }

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification*)notification{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"iWeibo" message:notification.alertBody delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil]; [alert show]; // 圖標上的數字減1 application.applicationIconBadgeNumber -= 1;}

// 獲得 UIApplicationUIApplication *app = [UIApplication sharedApplication];//獲取本地推送數組NSArray *localArray = [app scheduledLocalNotifications];//聲明本地通知對象UILocalNotification *localNotification;if (localArray) { for (UILocalNotification *noti in localArray) {  NSDictionary *dict = noti.userInfo;  if (dict) {   NSString *inKey = [dict objectForKey:@"key"];   if ([inKey isEqualToString:@"對應的key值"]) {    if (localNotification){     [localNotification release];     localNotification = nil;    }    localNotification = [noti retain];    break;   }  } }  //判斷是否找到已經存在的相同key的推送 if (!localNotification) {  //不存在初始化  localNotification = [[UILocalNotification alloc] init]; }  if (localNotification) {  //不推送 取消推送  [app cancelLocalNotification:localNotification];  [localNotification release];  return; }}