Question

I am new to IOS and can’t seem to get this to work , I have an input filed on my app,from which I want to hide the keyboard whenever the user either presses return or the associated button (searchGo)

The following is my code :

mainViewController.h

 @interface kepnMainViewController : UIViewController <kepnFlipsideViewControllerDelegate, MKMapViewDelegate>
{
    MKMapView *_mapView;
    IBOutlet UITextField *searchBox;
    IBOutlet UIBarButtonItem *searchGo; 
    IBOutlet UIBarButtonItem *searchNearby;
    MKAnnotationView *annotationView;
}
@property (strong, nonatomic) MKMapView *_mapView;
@property (strong, nonatomic) MapAnnotation *annotation;
@property (strong, nonatomic) UIPopoverController *flipsidePopoverController;
@property (strong, nonatomic) MKAnnotationView *annotationView;
@property (strong, nonatomic) UIBarButtonItem *searchGo; 



- (IBAction)showInfo:(id)sender;
- (IBAction)searchGo:(id)sender;
- (IBAction)showNearby:(id)sender;
- (IBAction)searchBoxReturn:(id)sender;

- (void) setPlaceMarker: (CLLocationCoordinate2D) coord :(NSString*) title :(NSString*) subtitle; 
@end

Appropriate .m snippet

-(IBAction)searchGo:(id)sender
{
    NSLog(@"sender object %@",sender); 


         [sender resignFirstResponder];


    NSLog(@"search button pressed and textbox = %@",searchBox.text); 


}



-(IBAction)searchBoxReturn:(id)sender
{
    NSLog(@"search box return "); 

    [sender resignFirstResponder];

}

Sorry if this is a dumb question but what am I doing wrong.??

Answer 1

UIBarButtonItem isnt an UIView and therefore definitely not an UIResponder. Instead, it’s a subclass of NSObject, which doesn’t respond to - (void)resignFirstResponder.

(solution: remove the [sender resignFirstResponder]; lines)