Warning from AppDelegate - iphone

Question

I am getting the following warning when I am calling other view controllers..
WindowMultivewAppDelegate might not respond to -switchView to view
This is my code in the Firstviewcontroller.m
- (IBAction)swapViews:(id)sender{
WindowMultiViewAppDelegate *delegate = (WindowMultiViewAppDelegate *)[[UIApplication sharedApplication] delegate];
SecondViewController *secondView = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
[delegate switchView:self toView:secondView.view];
}
this is my code in the Firstviewcontroller.h
#import <UIKit/UIKit.h>
#interface FirstViewController : UIViewController {
}
- (IBAction)swapViews:(id)sender;
#end
in the appdelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions {
initWithNibName:#"FirstViewController" bundle:nil];
[self.window addSubview:navigationController.view];
locationManager = [[CLLocationManager alloc] init];
locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move
locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; // 100 m
if ([CLLocationManager locationServicesEnabled]) {
[locationManager startUpdatingLocation];
}
[self.window makeKeyAndVisible];
return YES;
}
in the appdelegate.h
#interface WindowMultiViewAppDelegate : NSObject <UIApplicationDelegate, CLLocationManagerDelegate , MKMapViewDelegate> {
UIWindow *window;
UINavigationController *navigationController;
CLLocationManager *locationManager;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet CLLocationManager *locationManager;
#property (nonatomic, retain) IBOutlet UINavigationController *navigationController;
#end
I have placed a UInavgationcontroller into the mainWindow.xib which leads to the rootviewcontroller which i named FirstViewController
The application quites in the secondviewcontroller when a button next is pressed which has that action inside
- (IBAction)swapNext:(id)sender
{
WindowMultiViewAppDelegate *delegate = (WindowMultiViewAppDelegate *)[[UIApplication sharedApplication] delegate];
MediaViewController *mediaView = [[MediaViewController alloc] initWithNibName:#"MediaViewController" bundle:nil];
[delegate switchView:self toView:mediaView.view];
}
What am I doing wrong??
Can anybody tell me how to connect more subviews into the UINavigationController
I want one of this subviews to be a video player - offline- and the other one to be a map which find the user"s location
I am a beginner.... thank you all when I learn I am going to help others :))

Answer 1

I don't see that you define the switchView: method anywhere, so it's no surprise that you get a warning about this.