move image following finger with fix x,y iOS7 - ios

Question

How I can move image with fix x,y coordinate smooth (following user finger) in xcode 5.
I have make some code but it doesn't move following my finger gesture (image move instantly to new location)
here my .m
#import "ViewController.h"
#import "MyScene.h"
#interface ViewController()
#property (nonatomic, strong) UISwipeGestureRecognizer *leftSwipeGestureRecognizer;
#property (nonatomic, strong) UISwipeGestureRecognizer *rightSwipeGestureRecognizer;
#end
#implementation ViewController
- (IBAction)HandlePan:(UIPanGestureRecognizer *)recognizer{
CGPoint translation = [recognizer translationInView:self.view];
recognizer.view.center = CGPointMake(recognizer.view.center.x + translation.x, recognizer.view.center.y + translation.y);
[recognizer setTranslation:CGPointMake(0,0) inView:self.view];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.leftSwipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(handleSwipes:)];
self.rightSwipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(handleSwipes:)];
self.leftSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
self.rightSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:self.leftSwipeGestureRecognizer];
[self.view addGestureRecognizer:self.rightSwipeGestureRecognizer];
}
- (void)handleSwipes:(UISwipeGestureRecognizer *)sender
{
if (sender.direction == UISwipeGestureRecognizerDirectionLeft)
{
CGPoint labelPosition = CGPointMake(self.pesawat.frame.origin.x - 30.0, self.pesawat.frame.origin.y);
self.pesawat.frame = CGRectMake( labelPosition.x , labelPosition.y , self.pesawat.frame.size.width, self.pesawat.frame.size.height);
}
if (sender.direction == UISwipeGestureRecognizerDirectionRight)
{
CGPoint labelPosition = CGPointMake(self.pesawat.frame.origin.x + 30.0, self.pesawat.frame.origin.y);
self.pesawat.frame = CGRectMake( labelPosition.x , labelPosition.y , self.pesawat.frame.size.width, self.pesawat.frame.size.height);
}
}
and here my .h
#interface ViewController : UIViewController
#property (nonatomic, retain) IBOutlet UIImageView *pesawat;
#end

Answer 1

As a very basic example,
You should use a panGestureRecognizer:
UIPanGestureRecognizer * panner = [[UIPanGestureRecognizer alloc]init];
[panner addTarget:self action:#selector(handlePan:)];
[self.view addGestureRecognizer:panner];
Then:
- (void) handlePan:(UIPanGestureRecognizer *)panner {
CGPoint translation = [panner translationInView:panner.view];
CGPoint newCenter = CGPointMake(self.pesawat.center.x + translation.x, self.pesawat.center.y);
int offset = 30; // pixels to offset
if (newCenter.x < offset) newCenter = CGPointMake(offset, newCenter.y);
else if (newCenter.x > self.view.bounds.size.width - offset) newCenter = CGPointMake(self.view.bounds.size.width - offset, newCenter.y);
self.pesawat.center = newCenter;
[panner setTranslation:CGPointMake(0, 0) inView:panner.view];
}

Answer 2

I suggest you to maintain the y position, change the x
basketView.center = CGPointMake(point.x, basketView.center.y);
Or I recommend you to follow these tutorials:
1) http://blog.spritebandits.com/2012/04/17/iphone-drawing-on-screen-follow-a-finger/
2) http://www.raywenderlich.com/44270/sprite-kit-tutorial-how-to-drag-and-drop-sprites
Hopefully this info will helps you.

Answer 3

I do this with a Long Press Gesture recognizer. Like this:
UILongPressGestureRecognizer *ges = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:#selector(lp:)];
ges.minimumPressDuration = 0.1;
self.pesawat.userInteractionEnabled = YES;
[self.pesawat addGestureRecognizer:ges];
Then add this:
-(void)lp:(UILongPressGestureRecognizer*)ges{
float x = ([ges locationInView:self.GraphicBox].x);
float y = ([ges locationInView:self.GraphicBox].y);
[imgView setCenter:CGPointMake(x,y)];
}
That should do the trick for you.