method not being called since adding parallax image - ios

Question

So i recently implemented parallax images into my app which works great, however this has broken a button which calls a method.
Here is a picture of my storyboard:
http://imgur.com/uIonWrK
Here is my .h code:
#interface _01FirstViewController : UIViewController <UITextFieldDelegate, UIAccelerometerDelegate>{
UIAccelerometer *accelerometer;
float xoof;
float yoff;
float xvelocity;
float yvelocity;
float xaccel;
float yaccel;
}
#property (nonatomic, retain) UIAccelerometer *accelerometer;
#property (weak, nonatomic) IBOutlet UIScrollView *BGScrollView;
#property (weak, nonatomic) IBOutlet UIButton *Track;
#property (weak, nonatomic) IBOutlet UITextField *trackingNumber;
#property (strong, nonatomic) NSDictionary *posts;
#property (strong,nonatomic) NSString *TrackPoint;
#property (strong,nonatomic) NSArray *Path;
#property (strong,nonatomic) NSString *documentFolder;
#property (strong,nonatomic) NSString *filePath;
-(void)parseTrackNo;
-(void)reloadTrackingNumber;
Here is the relevant parts of the .m:
- (void)viewDidLoad
{
_BGScrollView.contentSize = CGSizeMake(_BGScrollView.frame.size.width+30,_BGScrollView.frame.size.width+30);
self.accelerometer = [UIAccelerometer sharedAccelerometer];
self.accelerometer.updateInterval = 0.03;
self.accelerometer.delegate = self;
[NSTimer scheduledTimerWithTimeInterval:-1 target:self selector:#selector(tick) userInfo:nil repeats:YES];
}
-(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration{
float xx = -acceleration.x;
float yy = (acceleration.y + 0.5f) *2.0f;
float acceldirX;
if (xvelocity * -1.0f >0){
acceldirX = 1.0;
}
else {
acceldirX = -1.0;
}
float newdirX;
if (xx > 0){
newdirX = 1.0;
}
else {
newdirX = -1.0;
}
float acceldirY;
if (yvelocity * -1.0f >0){
acceldirY = 1.0;
}
else {
acceldirY = -1.0;
}
float newDirY;
if (yy > 0){
newDirY = 1.0;
}
else {
newDirY = -1.0;
}
if (acceldirX == newdirX) xoof = acceleration.x * 30;
if (acceldirY == newDirY) yoff = acceleration.y *30;
}
This is the button that has stopped calling the method:
- (IBAction)Track:(id)sender {
[self parseTrackNo]; //Not calling method
NSLog(#"Button Pressed"); //This gets logged correctly
}
I have tried removing all code changes so i suspect it is something to do with the button being nested inside the view in the storyboard or the delegate changes.
Can anyone point me in the correct direction?
EDIT as requested the code for parseTrackingNo (note this was working perfectly until the parallax changes):
-(void)parseTrackNo
{
_01AppDelegate *appDelegate = (_01AppDelegate *)[[UIApplication sharedApplication] delegate];
//Get Tracking Number from textField
appDelegate.TrackingNumber = _trackingNumber.text;
//Check String isn't empty
if ([_trackingNumber.text isEqual: #""]){
} else{
//Check against Royal Mail API
NSString *trackingURL = [NSString stringWithFormat:#"%#%#", #"http://api.e44.co/tracktrace/", appDelegate.TrackingNumber];
NSURL *royalMail = [NSURL URLWithString:trackingURL];
//Return results
NSData *royalMailResults = [NSData dataWithContentsOfURL:royalMail];
//Parse JSON results
if(royalMailResults != nil)
{
NSError *error = nil;
id result = [NSJSONSerialization JSONObjectWithData:royalMailResults options:NSJSONReadingMutableContainers error:&error];
if (error == nil)
//Convert to dictionary/array
self.posts = (NSDictionary *)result;
NSArray *trackRecords = _posts[#"trackRecords"];
//Return keys from posts (Dict)
NSString *response = [self.posts valueForKeyPath:#"response"];
NSLog(#"Response: %#", response);
NSString *returnedTrackingNumber = [self.posts valueForKeyPath:#"trackingNumber"];
NSLog(#"Returned tracking number: %#", returnedTrackingNumber);
NSString *delivered = [self.posts valueForKeyPath:#"delivered"];
NSLog(#"delivered: %#", delivered);
NSString *signature = [self.posts valueForKeyPath:#"signature"];
NSLog(#"Signature: %#", signature);
//Track Records
NSString *Date = [trackRecords valueForKeyPath:#"date"];
NSLog(#"date: %#", Date);
NSString *Time = [trackRecords valueForKeyPath:#"time"];
NSLog(#"time: %#", Time);
NSString *Status = [trackRecords valueForKeyPath:#"status"];
NSLog(#"status: %#", Status);
appDelegate.LocationData = [[trackRecords valueForKey:#"trackPoint"] componentsJoinedByString:#""];
NSLog(#"GeoLocation: %#", appDelegate.LocationData);
//Check for Errors returned
if ([self.posts objectForKey:#"errorMsg"]) {
NSLog(#"ERROR MOTHERFUCKER");
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:#"Error"
message:#"It appears that you have entered an incorrect tracking number"
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil, nil];
[alert show];
} else {
[self performSegueWithIdentifier:#"addPackageSegue" sender:self];
}
}
}
}