iOS: How to close soft keyboard

Objective C

- (void)viewDidLoad {

    [super viewDidLoad];

    

    [self setCloseKeyboard];

    ...

}

- (void)setCloseKeyboard

{

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]

                                   initWithTarget:self

                                   action:@selector(dismissKeyboard)];

    tap.numberOfTapsRequired = 1;

    tap.cancelsTouchesInView = NO;

    

    [self.navigationController.navigationBar addGestureRecognizer:tap];

    [self.view addGestureRecognizer:tap];

}

-(void)dismissKeyboard {

    [self.view endEditing:YES];

}

- (void)viewWillAppear:(BOOL)animated

{

    [self.view endEditing:YES];

    

    [super viewWillAppear:animated];

}

Swift

let gesture = UITapGestureRecognizer(target: self, action: #selector(dismissKeyboard))
        gesture.numberOfTapsRequired = 1
        gesture.cancelsTouchesInView = false
       
        view.addGestureRecognizer(gesture)