jen2

import UIKit
import SwiftKeychainWrapper

class ViewController: UIViewController {

    @IBOutlet weak var passwordTextField: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }

jen2

import UIKit
import SwiftKeychainWrapper

class ViewController: UIViewController {

    @IBOutlet weak var passwordTextField: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }

jen2

import UIKit
import SwiftKeychainWrapper

class ViewController: UIViewController {

    @IBOutlet weak var passwordTextField: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }

jen2

#import “ViewController.h”
#import “zLetterGestureRecognizer.h”

@interface ViewController ()
@end

@implementation ViewController
  - (void)viewDidLoad {
      [super viewDidLoad];
      [self.view addGestureRecognizer:[[ZLetterGestureRecognizer alloc] initWithTarget:self action:@selector(zLetterMade:)]];

jen2

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
   [super touchesEnded:touches withEvent:event]; 
   [self reset];
}
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
   self.state = UIGestureRecognizerStateCancelled;
   [self reset];
}

jen2

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
   [super touchesMoved:touches withEvent:event];    //A
   if ((self.state == UIGestureRecognizerStateFailed) || (self.state == UIGestureRecognizerStateRecognized)) {    //B 
      return;
   }
   UIView *superView = [self.view superview];     //C
   CGPoint currentPoint = [touches.anyObject locationInView:superView];
   CGPoint previousPoint = [touches.anyObject previousLocationInView:superView];
   if ((self.strokePart == 0) && ((currentPoint.x — self.firstTap.x) > 20.00) && (currentPoint.x > previousPoint.x) && 

jen2

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
   [super touchesBegan:touches withEvent:event]; 
   self.strokePrecision = 10.0; //A 
   if (touches.count > 1) {
      self.state = UIGestureRecognizerStateFailed; // B
      return;
   }
   self.firstTap = [touches.anyObject locationInView:  self.view.superview]; //C
}

jen2

[[NSNotificationCenter defaultCenter] removeObserver:someObserver];

//However to remove one particular notification from being observed it is best to use the following.

[[NSNotificationCenter defaultCenter] removeObserver:self name:notificationName object:nil];

jen2

NSDictionary* userInfoDictionary = @{@”name”: @”Bob Smith”};

[[NSNotificationCenter defaultCenter] postNotificationName:@”SomeActionIsComplete” object:nil userInfo:userInfoDictionary];

jen2

[[NSNotificationCenter defaultCenter] addObserverForName:@”SomeActionIsComplete” object:nil queue:nil usingBlock:^(NSNotification *note)
{
    NSLog(@”The action I was waiting for is complete!!!”);
    [self dismissViewControllerAnimated:YES completion:nil];
}];