gistfile1.txt

@implementation AppDelegate
{
	UITextView *_textView;
}
@synthesize window = _window;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
	
	_textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 100, self.window.bounds.size.width, 300)];
	_textView.backgroundColor = [UIColor lightGrayColor];
	_textView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
	[self.window addSubview:_textView];
	
	UIView *swipeStrip = [[UIView alloc] initWithFrame:CGRectMake(0, 0, _textView.bounds.size.width, 40)];
	swipeStrip.backgroundColor = [UIColor lightGrayColor];
	
	UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan:)];
	[swipeStrip addGestureRecognizer:pan];
	
	UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinch:)];
	[swipeStrip addGestureRecognizer:pinch];
	
	 _textView.inputAccessoryView = swipeStrip;
    
	self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    return YES;
}

- (void)moveRange:(BOOL)rightToLeftSwipe
{
	NSRange range = _textView.selectedRange;
	if (range.location == 0 && rightToLeftSwipe)
		return;
	if ((range.location + range.length >= _textView.text.length) && !rightToLeftSwipe)
		return;
    rightToLeftSwipe ? range.location-- : range.location++;
    _textView.selectedRange = range;
}

- (void)pan:(UIPanGestureRecognizer*)gesture
{
	CGPoint translation = [gesture translationInView:gesture.view];
	[self moveRange:translation.x < 0];
}

- (void)expandSelection:(BOOL)pinchOut
{
	NSRange range = _textView.selectedRange;
	if (pinchOut)
	{
		if (range.location > 0)
			range.location--;
		if (range.location + range.length < _textView.text.length)
			range.length++;
	}
	else 
	{
		if (range.location + range.length >= _textView.text.length)
			range.location++;
		if (range.length > 0)
			range.length--;
	}
	_textView.selectedRange = range;
}

- (void)pinch:(UIPinchGestureRecognizer *)pinch
{
	CGFloat velocity = pinch.velocity;
	[self expandSelection:velocity > 0];
}
	 
@end