本地通知被替换

Question

每当我的应用在后台收到重要的位置更新时，我都会显示本地通知。由于某种原因，通知每次都会覆盖先前的通知。我想在屏幕上显示所有本地通知，直到用户打开应用程序。我怎么能这样做？

这是我的代码：

NSString *message = [NSString stringWithFormat:@"Distance %.1f km",self.calculatedDistance];
[notification setAlertBody:message];
[notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
[notification setTimeZone:[NSTimeZone  defaultTimeZone]];

NSDictionary *infoDict = [NSDictionary dictionaryWithObject:message forKey:@"msg"];
notification.userInfo = infoDict;

[[UIApplication sharedApplication] setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];

Answer 1

替换：

    [[UIApplication sharedApplication] setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];

使用：

    [[UIApplication sharedApplication] scheduleLocalNotification:notification];