iOS自定义按钮不显示交互通知

Question

我目前正在处理交互式iOS通知​​到了8点，老实说，我真的很难看清自己的纽扣。使用下面的代码，我看不到我的按钮：

//交互式

UIMutableUserNotificationAction *acceptAction =
[[UIMutableUserNotificationAction alloc] init];
acceptAction.identifier = @"ACCEPT_IDENTIFIER";
acceptAction.title = @"Accept";
acceptAction.activationMode = UIUserNotificationActivationModeBackground;
acceptAction.destructive = NO;
acceptAction.authenticationRequired = NO;
UIMutableUserNotificationAction *maybeAction =
[[UIMutableUserNotificationAction alloc] init];
maybeAction.identifier = @"MAYBE_IDENTIFIER";
maybeAction.title = @"Maybe";
maybeAction.activationMode = UIUserNotificationActivationModeBackground;
maybeAction.destructive = NO;
maybeAction.authenticationRequired = YES;

UIMutableUserNotificationAction *declineAction =
[[UIMutableUserNotificationAction alloc] init];
declineAction.identifier = @"DECLINE_IDENTIFIER";
declineAction.title = @"Decline";
declineAction.activationMode = UIUserNotificationActivationModeBackground;
declineAction.destructive = YES;
declineAction.authenticationRequired = NO;

UIMutableUserNotificationCategory *inviteCategory =
[[UIMutableUserNotificationCategory alloc] init];
inviteCategory.identifier = @"INVITE_CATEGORY";
[inviteCategory setActions:@[acceptAction, maybeAction, declineAction]
                forContext:UIUserNotificationActionContextDefault];
[inviteCategory setActions:@[acceptAction, declineAction]
                forContext:UIUserNotificationActionContextMinimal];

NSSet *categories = [NSSet setWithObjects:inviteCategory, nil];
UIUserNotificationType types = UIUserNotificationTypeBadge |
UIUserNotificationTypeSound | UIUserNotificationTypeAlert;
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:types categories:categories];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];
[[UIApplication sharedApplication] registerForRemoteNotifications];
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:10];
localNotification.alertBody = @"Testing";
localNotification.category = @"INVITE_CATEGORY"; //  Same as category identifier
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

对我的问题有什么想法吗？尽管互联网上有很多例子，但我显然是唯一一个有这个问题的人。

Answer 1

这里有一个非常棒的教程：Code Ninja

代码中的所有内容看起来都很好。我得问一下，确保你没有忽视实际发生的事情——如果你在看主屏幕上的通知，你是否在通知上向左滑动以显示按钮？

以下是我正在使用的（对swift感到抱歉）

通知的初始提示

    var openAction = UIMutableUserNotificationAction()
    openAction.identifier = "OPEN_IDENTIFIER"
    openAction.title = "Open"
    openAction.destructive = false
    openAction.authenticationRequired = false
    openAction.activationMode = .Foreground
    var snoozeAction = UIMutableUserNotificationAction()
    snoozeAction.identifier = "SNOOZE_IDENTIFIER"
    snoozeAction.title = "Snooze"
    snoozeAction.destructive = true
    snoozeAction.authenticationRequired = false
    snoozeAction.activationMode = .Background
    var snoozeable = UIMutableUserNotificationCategory()
    snoozeable.identifier = NOTE_SNOOZE_CAT
    snoozeable.setActions([openAction, snoozeAction], forContext: .Default)
    snoozeable.setActions([openAction, snoozeAction], forContext: .Default)
    var notSnoozable = UIMutableUserNotificationCategory()
    notSnoozable.identifier = NOTE_NO_SNOOZE_CAT
    notSnoozable.setActions([openAction], forContext: .Default)
    notSnoozable.setActions([openAction], forContext: .Default)
    UIApplication.sharedApplication().registerUserNotificationSettings(UIUserNotificationSettings(forTypes: .Sound | .Alert |
        .Badge, categories: NSSet(array:[snoozeable, notSnoozable])
        ))

本地通知

    var notification             = UILocalNotification()
    notification.fireDate        = fireDate
    notification.timeZone        = NSTimeZone.defaultTimeZone()
    notification.alertBody       = "Alert Body"
    notification.userInfo        = userInfo
    notification.category        = blnCanSnooze ? NOTE_SNOOZE_CAT : NOTE_NO_SNOOZE_CAT
    UIApplication.sharedApplication().scheduleLocalNotification(notification)

Answer 2

我遇到了另一个问题。我正在处理多种类型的通知我的通知很少没有显示操作按钮，而很少有。发现只有最后设置的通知显示了操作按钮。我很愚蠢，没有想到在共享设置时，类别的标识符会被最后一次设置通知覆盖。为了处理这个问题，我们需要提取当前的通知设置，将我们的设置添加到其中，然后再次设置：

    NSMutableArray *arrNewCategories = [NSMutableArray new];
    UIUserNotificationSettings *oldSettings = [[UIApplication sharedApplication]currentUserNotificationSettings];
    for (UIMutableUserNotificationCategory *oldCategory in oldSettings.categories)
    {
      if (![oldCategory.identifier isEqualToString:newNotificationCategory.identifier])
           [arrNewCategories addObject:oldCategory];
    }
    [arrNewCategories addObject:newNotificationCategory];
    UIUserNotificationType notificationType = UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert;
    UIUserNotificationSettings *newSettings = [UIUserNotificationSettings settingsForTypes:notificationType categories:[NSSet setWithArray:arrNewCategories]];
    [[UIApplication sharedApplication] registerUserNotificationSettings:newSettings];

只需确保newNotificationCategory的标识符与UILocalNotification的类别匹配即可。