Question

I want to push UIViewController from UIView.

I have searched for that and i got link1, link2 but still I don’t getting what changes I need to do. !

My Code is as following

KalGridView.h

@interface KalGridView : UIView 
{
}

KalGridView.m

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{

// From here I want to push viewController. 
}

How can I do This?

Answer 1

1. Usually you can access to UINavigationController via appDelegate.
   So if you have the UINavigationController property in your
   appDelegate try this code:

   [[(iMyApp_AppDelegate*)[[UIApplication sharedApplication] delegate] navigationController] pushViewController:myVC
   

   animated:YES];

2. Implement a delegate in your custom view:

   @protocol KalGridViewDelegate 
   @interface KalGridView : UIView  {
       id<KalGridViewDelegate> kgDelegate; }
   @property(nonatomic, assign) id<KalGridViewDelegate>    kgDelegate;
   
   @protocol KalGridViewDelegate @optional
   -(void)didTouchInKalGridView:(KalGridView*)view withData:(NSObject*)data; 
   @end
   

   KalGridView.m

   - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event 
   { 
       [self.kgDelegate didTouchInKalGridView:self withData:someData];  
   }
   

   So now you can handle this event in any place where is your custom
   view.

3. Use NSNotification:

   - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event 
   { 
       [[NSNotificationCenter defaultCenter] postNotificationName:@"TOUCHED" object:nil]; 
   }
   

   In any point of your code:

   [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didTouched:) name:@"TOUCHED" object:nil];
   

   And method for handle (likely in other viewcontroller)

   - (void)didTouched:(NSNotification*)sender{
       // push or pop your viewcontroller here
   }