iphone - UILocalNotification 没有出现在 iOS7 中

Question

我在我的项目中使用 UILocalNotification。我的代码:

        UILocalNotification *notification = [[UILocalNotification alloc] init];
        notification.fireDate = event.date;
        notification.timeZone = [NSTimeZone systemTimeZone];        

        notification.hasAction = YES;
        notification.soundName = UILocalNotificationDefaultSoundName;
        [notification setApplicationIconBadgeNumber:[UIApplication sharedApplication].applicationIconBadgeNumber+1];

        notification.alertBody = @"test alert body";

        notification.repeatInterval = NSDayCalendarUnit;

        NSLog(@"SCHEDULED NOTIFICATION  = %@", notification);

        [[UIApplication sharedApplication] scheduleLocalNotification:notification];

在应该出现通知的时候，什么也没有发生，但应用程序的徽章图标值得到 +1。对于 iOS6，它工作正常。哪里会出问题？

更新 在我的应用程序运行和关闭时，我没有收到任何关于通知的警报。唯一的徽章号码正在改变。

Answer 1

如果您在前台运行它，通常会丢失 didReceiveLocalNotification:

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {

    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:[[[NSBundle mainBundle] infoDictionary]   objectForKey:@"CFBundleName"]
                                                        message:notification.alertBody
                                                       delegate:nil
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil];

    [alertView show];

    // Reset badges if you want
    application.applicationIconBadgeNumber = 0;
}