iOS 8 通知操作按钮未显示

我正在尝试使用操作按钮发送本地通知。 通知没问题。但是不显示操作按钮。 我正在使用 Xcode 6.3.2 iPhone 6 iOS 8.2

---

发送通知

UIApplication *myapp = [UIApplication sharedApplication];
UILocalNotification *test = [[UILocalNotification alloc] init];

if(test) {
    NSLog(@"Sending notification");

    test.alertBody = @"jothi test alert";
    test.alertTitle = @"kottapa";

    test.soundName = UILocalNotificationDefaultSoundName;
    test.alertAction = NSLocalizedString(@"View Details", nil);
    test.category = @"MY_CATEGORY";

    [myapp presentLocalNotificationNow:test];
}

---

在应用委托(delegate)中didFinishLaunchingWithOptions:

UIMutableUserNotificationAction *myAction =
[[UIMutableUserNotificationAction alloc] init];

myAction.identifier = @"MY_IDENTIFIER";        
myAction.title = @"Test Action";
myAction.activationMode = UIUserNotificationActivationModeBackground;
myAction.destructive = NO;
myAction.authenticationRequired = NO;

//------------

// First create the category
UIMutableUserNotificationCategory *inviteCategory =
   [[UIMutableUserNotificationCategory alloc] init];

// Identifier to include in your push payload and local notification
inviteCategory.identifier = @"MY_CATEGORY";

// Add the actions to the category and set the action context
[inviteCategory setActions[myAction]
                forContext:UIUserNotificationActionContextDefault];

// Set the actions to present in a minimal context
[inviteCategory setActions[myAction]
                forContext:UIUserNotificationActionContextMinimal];

NSSet *categories = [NSSet setWithObject:inviteCategory];

UIUserNotificationSettings *settings =
    [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound
                                      categories:categories];

[[UIApplication sharedApplication] registerUserNotificationSettings:settings];

---

Best Answer-推荐答案

您的代码有效，您只需向左滑动通知即可看到操作按钮(或将其拉下，如果它从顶部以横幅形式呈现，则设备未锁定)。

另外，我猜你已经这样做了，只是没有包含代码，为了处理用户选择的操作，你需要在你的应用委托(delegate)中实现这个方法:

- (void)applicationUIApplication *)application handleActionWithIdentifierNSString *)identifier forLocalNotificationUILocalNotification *)notification completionHandlervoid(^)())completionHandler

关于iOS 8 通知操作按钮未显示，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32109729/