如何从Spotlight搜索中启动该应用程序？

Question

I have implemented spotlight search in my application, Everything is working fine, But in some situation I want to require to know that application launch from spotlight search or not ? please help me how can I know this.

AppDelegate.m

- (BOOL)application:(UIApplication *)application continueUserActivity:(NSUserActivity *)userActivity restorationHandler:(void(^)(NSArray *restorableObjects))restorationHandler{
    self.isSportlight = YES;
    self.strSportlightUnitname = [userActivity.userInfo valueForKey:@"kCSSearchableItemActivityIdentifier"];
    return YES;
}

rootViewcontroller.m

- (void)viewDidLoad
{
   if(!appDel.isSportlight){
        [self OnLaunchSettings];
    }else{
         [self setupSportLightEvent];
    }
}

Aspected result is appDel.isSportlight = TRUE But appDel.isSportlight always got FALSE because "continueUserActivity:(NSUserActivity *)userActivity restorationHandler" method call after "ViewDidLoad"

Answer 1

The root view controller shouldn't be checking in with the app delegate, that relationship is the wrong way round. The app delegate should be telling the root view controller (or possibly posting a global notification if other controllers need to know about it) so that it can respond at any time, not just when it's initially setting things up. You need to write your code so that you can switch between different states. That would usually be done by pushing or adding/removing child view controllers so you compartmentalise the functionality of each mode.