A UIGestureRecognizer Category to generate NSStrings for use with NSLog

UIGestureRecognizer+NSStringFunctions.h

#import <UIKit/UIKit.h>

@interface UIGestureRecognizer (NSStringFunctions)

/**
 *  Returns a string formatted to display the pertenent name of the 
 *	`UIGestureRecognizerState`
 *
 *	Often this just returns the text of the variable name after 
 *	"UIGestureRecognizerState". For Example, `UIGestureRecognizerStatePossible` 
 *	returns "Possible".
 *
 *  @param state The `UIGestureRecognizerState` to format.
 *
 *  @return A formatted `UIGestureRecognizerState` name string.
 */
UIKIT_EXTERN NSString *NSStringFromUIGestureRecognizerState(UIGestureRecognizerState state);

@end

UIGestureRecognizer+NSStringFunctions.m

#import "UIGestureRecognizer+NSStringFunctions.h"

@implementation UIGestureRecognizer (NSStringFunctions)

NSString *NSStringFromUIGestureRecognizerState(UIGestureRecognizerState state) {
	/*
	 UIGestureRecognizerStatePossible,   // the recognizer has not yet recognized its gesture, but may be evaluating touch events. this is the default state
	 
	 UIGestureRecognizerStateBegan,      // the recognizer has received touches recognized as the gesture. the action method will be called at the next turn of the run loop
	 UIGestureRecognizerStateChanged,    // the recognizer has received touches recognized as a change to the gesture. the action method will be called at the next turn of the run loop
	 UIGestureRecognizerStateEnded,      // the recognizer has received touches recognized as the end of the gesture. the action method will be called at the next turn of the run loop and the recognizer will be reset to UIGestureRecognizerStatePossible
	 UIGestureRecognizerStateCancelled,  // the recognizer has received touches resulting in the cancellation of the gesture. the action method will be called at the next turn of the run loop. the recognizer will be reset to UIGestureRecognizerStatePossible
	 
	 UIGestureRecognizerStateFailed,     // the recognizer has received a touch sequence that can not be recognized as the gesture. the action method will not be called and the recognizer will be reset to UIGestureRecognizerStatePossible
	 
	 // Discrete Gestures – gesture recognizers that recognize a discrete event but do not report changes (for example, a tap) do not transition through the Began and Changed states and can not fail or be cancelled
	 UIGestureRecognizerStateRecognized = UIGestureRecognizerStateEnded // the recognizer has received touches recognized as the gesture. the action method will be called at the next turn of the run loop and the recognizer will be reset to UIGestureRecognizerStatePossible
	 */
	
	NSString *resultString;
	switch (state) {
		case UIGestureRecognizerStatePossible:
			resultString = @"Possible";
			break;
		case UIGestureRecognizerStateBegan:
			resultString = @"Began";
			break;
		case UIGestureRecognizerStateChanged:
			resultString = @"Changed";
			break;
		case UIGestureRecognizerStateEnded:
			resultString = @"Ended";
			break;
		case UIGestureRecognizerStateCancelled:
			resultString = @"Cancelled";
			break;
		case UIGestureRecognizerStateFailed:
			resultString = @"Failed";
			break;
		default:
			break;
	}
	
	return resultString;
}

@end