调度UILocalNotification

Question

收到通知后，我想要可操作的按钮。为了处理远程推送通知，我添加了以下代码-

(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UIApplication *application = [UIApplication sharedApplication];

if( SYSTEM_VERSION_LESS_THAN( @"10.0" ) ) {
    UIMutableUserNotificationAction *action1 = [[UIMutableUserNotificationAction alloc] init];
    [action1 setActivationMode:UIUserNotificationActivationModeForeground];
    [action1 setTitle:@"action1Text"];
    [action1 setIdentifier:@"action1id"];
    [action1 setDestructive:NO];
    [action1 setAuthenticationRequired:NO];

    UIMutableUserNotificationCategory *actionCategory = [[UIMutableUserNotificationCategory alloc] init];
    [actionCategory setIdentifier:kMTNRemindLaterCategory];
    [actionCategory setActions:@[action1]
                    forContext:UIUserNotificationActionContextDefault];

    NSSet *categories = [NSSet setWithObject:actionCategory];
    UIUserNotificationType types = (UIUserNotificationTypeAlert|
                                    UIUserNotificationTypeSound|
                                    UIUserNotificationTypeBadge);

    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:types categories:categories];

    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];

}
}

它工作得很完美。我能看到按钮并处理这个动作。现在，单击该按钮并基于一些更多的逻辑，我希望使用上面定义的相同的可操作按钮来调度本地通知。我添加了代码(不是在AppDelegate文件中)：

NSDate *date = [NSDate dateWithTimeIntervalSinceNow:10];
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = date;
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.alertBody = @"title 4";
localNotification.hasAction = YES;
localNotification.alertAction = @"action";
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.category = kRemindLaterCategory;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

本地通知已排定，我将收到通知。但我没看到任何可操作的按钮。

我读过苹果文档

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

似乎很有用。但这是在单击通知时触发的。我提到的其他帖子：https://www.shinobicontrols.com/blog/ios8-day-by-day-day-25-notification-actions actions and categories don't show in UILocalNotification in iOS How can I add action buttons/actions to UILocalNotification alert?

谁能给我指出正确的方向吗？

Answer 1

kRemindLaterCategory值和kMTNRemindLaterCategory值应该是相同的，那么您也可以看到带有本地通知的可操作按钮，如果两者不相同，可操作按钮就无法显示，因为带有本地通知的指定类别尚未注册。