Swipe Left and Right to load item - ios

Question

i had an array which is contains 10 items which is 1,2,3,4,5,6,7,8,9,10. when i load the page the item is at 3. so when the user swipe left it will go to 4 and swipe to right it will go to 2. may i know how to do it?
newsID=[[NSMutableArray alloc]init];
[newsID addObject:#"1"];
[newsID addObject:#"2"];
[newsID addObject:#"3"];
[newsID addObject:#"4"];
[newsID addObject:#"5"];
[newsID addObject:#"6"];
[newsID addObject:#"7"];
[newsID addObject:#"8"];
[newsID addObject:#"9"];
[newsID addObject:#"10"];
UISwipeGestureRecognizer * swipeleft=
[[UISwipeGestureRecognizer alloc]initWithTarget:self action:#selector(swipeleft:)];
swipeleft.direction=UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeleft];
UISwipeGestureRecognizer * swiperight=
[[UISwipeGestureRecognizer alloc]initWithTarget:self action:#selector(swiperight:)];
swiperight.direction=UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swiperight];

Answer 1

Try this.
i am taking one UILabel and changing the text of it while swiping.and one int variable to keep track of swipe.
- (void)viewDidLoad
{
[super viewDidLoad];
newIdArray = #[#"1",#"2",#"3",#"4",#"5",#"6",#"7",#"8",#"9",#"10"];
num_index = 3;
ValueLabel.text = [newIdArray objectAtIndex:num_index];
leftGesture = [[UISwipeGestureRecognizer alloc]init];
leftGesture.direction = UISwipeGestureRecognizerDirectionLeft;
[leftGesture addTarget:self action:#selector(PerformSwipegesture:)];
[self.view addGestureRecognizer:leftGesture];
rightGesture = [[UISwipeGestureRecognizer alloc]init];
rightGesture.direction = UISwipeGestureRecognizerDirectionRight;
[rightGesture addTarget:self action:#selector(PerformSwipegesture:)];
[self.view addGestureRecognizer:rightGesture];
}
- (IBAction)PerformSwipegesture:(UISwipeGestureRecognizer *)sender
{
if (sender.direction == UISwipeGestureRecognizerDirectionLeft)
{
if (num_index <9)
{
num_index = num_index +1;
ValueLabel.text = [newIdArray objectAtIndex:num_index];
}
}
else if (sender.direction == UISwipeGestureRecognizerDirectionRight)
{
if (num_index >0)
{
if (num_index >1)
num_index = num_index -2;
else
num_index = num_index -1;
ValueLabel.text = [newIdArray objectAtIndex:num_index];
}
}
}

Answer 2

Here is simple example for handling swipe gestures. Here i am taking one UILabel and changing the text of it while swiping.
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
_lblText.text=#"3";
_lblText.textAlignment=NSTextAlignmentCenter;
UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(handleRightSwipe)];
swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swipeRight];
UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(handleLeftSwipe)];
swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeLeft];
}
-(void)handleRightSwipe
{
if ([_lblText.text intValue]>1)
{
_lblText.text=[NSString stringWithFormat:#"%d",[_lblText.text intValue]-1];
}
else
{
return;
}
}
-(void)handleLeftSwipe
{
if ([_lblText.text intValue]<10)
{
_lblText.text=[NSString stringWithFormat:#"%d",[_lblText.text intValue]+1];
}
else
{
return;
}
}