self.pinController = [[ACSPinController alloc] initWithPinServiceName:@"testservice" pinUserName:@"testuser" accessGroup:@"accesstest" delegate:self];
    self.pinController.retriesMax = 5;
    // Validation block for pin controller to check if entered pin is valid.
    self.pinController.validationBlock = ^(NSString *pin) {
        // Check if 'pin' unlocks a vault or something similar...
    };

    [self.pinController presentCreateControllerFromViewController:self];

    [self.pinController presentVerifyControllerFromViewController:self];

    [self.pinController presentChangeControllerFromViewController:self];

    UIViewController *pinController = [self.pinController verifyControllerFullscreenForCustomPresentationUsingTouchID:useTouchID];
    // Present the pinController however you want - Maybe as rootViewController of the window?

    NSError *error = nil;
    BOOL useTouchID = [self.pinController touchIDAvailable:&error]
    // Present the pinController however you want - Maybe as rootViewController of the window?

/**
This method is called after the pin code was changed successfully.
*/
- (void)pinChangeController:(UIViewController *)pinChangeController didChangePin:(NSString *)pin;
/**
 This method is called after the pin code was created successfully.
*/
- (void)pinCreateController:(UIViewController *)pinCreateController didCreatePin:(NSString *)pin;
/**
 This method is called after the pin code was verified successfully.
*/
- (void)pinController:(UIViewController *)pinController didVerifyPin:(NSString *)pin;
/**
 This method is called after the pin code was entered wrong. If there is only one retry left the lastRetry property is YES.
*/
- (void)pinControllerDidEnterWrongPin:(UIViewController *)pinController lastRetry:(BOOL)lastRetry;
/**
This method is called if the user reached the maximum number of attempts for entering the pin code. This means that the user could not
be verified and you should react properly to that event (e.g. logout user)
*/
- (void)pinControllerCouldNotVerifyPin:(UIViewController *)pinController;
/**
This method is called after touch id verification failed. For the user it fallbacks to the normal pin entering mode.
*/
- (void)pinControllerCouldNotVerifyTouchID:(UIViewController *)pinController withError:(NSError *)error;
/**
This message is send if the user selects the cancel button. If you have presented the pin controller manually you have to dismiss it here again.
*/
- (void)pinControllerDidSelectCancel:(UIViewController *)pinController;
/**
If the user selects the custom action button. Do whatever you want (e.g. show a menu)
*/
- (void)pinController:(UIViewController *)pinController didSelectCustomActionButton:(UIButton *)actionButton;

/**
 A property for providing a custom title image for the fullscreen controller (e.g. company logo)
 */
@property (nonatomic, strong) UIImage *titleImage;
/**
 A property for providing a custom action button image for the fullscreen controller (e.g. a burger button icon)
 */
@property (nonatomic, strong) UIImage *actionButtonImage;
/**
 A property for providing a custom action button title for the fullscreen controller (e.g. 'Menu')
 */
@property (nonatomic, strong) NSString *actionButtonString;
/**
 The background color of the display (upper part of controller)
 */
@property (nonatomic, strong) UIColor *displayBackgroundColor;
/**
 The color of the title text / prompt text
 */
@property (nonatomic, strong) UIColor *headerTitleColor;
/**
 The color of the placeholder dots of the passcode
 */
@property (nonatomic, strong) UIColor *passcodeDotsColor;
/**
 The color of the alert text that appear when entering a wrong pin
 */
@property (nonatomic, strong) UIColor *alertTextColor;
/**
 The background color of the keypad
 */
@property (nonatomic, strong) UIColor *keyboardBackgroundColor;
/**
 The color of the keypad buttons
 */
@property (nonatomic, strong) UIColor *keyboardTintColor;
/**
 The color of the keypad button titles
 */
@property (nonatomic, strong) UIColor *keyboardTitleColor;
/**
 The highlight color of the keypad buttons (when touching them)
 */
@property (nonatomic, strong) UIColor *keyboardHighlightColor;
/**
 The reason text that appear when using touch id.
 */
@property (nonatomic, strong) NSString *touchIDReasonText;
/**
 The fallback title of the button after touch id fails.
 */
@property (nonatomic, strong) NSString *touchIDFallbackTitle;