How to implement dragable UIButton in iOS 6? - ios

Question

I have been trying to implement dragable UIButton in iOS by overriding touchesMoved method.
The button shows up , however i am not able to drag it.What am i missing here?
this is what i reffered
This is my .h file.
#interface ButtonAnimationViewController : UIViewController
#property (weak, nonatomic) IBOutlet UIButton *firstButton;
And the .m file.
#implementation ButtonAnimationViewController
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint pointMoved = [touch locationInView:self.view];
self.firstButton.frame = CGRectMake(pointMoved.x, pointMoved.y, 73, 44);
}

Answer 1

Here you have a fully working button dragging example using UIPanGestureRecognizer which, in my opinion, is easier. I tested it before posting the code. Let me know if you have any more questions:
#interface TSViewController ()
#property (nonatomic, strong) UIButton *firstButton;
#end
#implementation TSViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// this code is just to create and configure the button
self.firstButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[self.firstButton setTitle:#"Button" forState:UIControlStateNormal];
self.firstButton.frame = CGRectMake(50, 50, 300, 40);
[self.view addSubview:self.firstButton];
// Create the Pan Gesture Recognizer and add it to our button
UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(dragging:)];
[self.firstButton addGestureRecognizer:panGesture];
}
// this method will be called whenever the user wants to drag the button
-(void)dragging:(UIPanGestureRecognizer*)panGesture {
// if is not our button, return
if (panGesture.view != self.firstButton) {
return;
}
// if the gesture was 'recognized'...
if (panGesture.state == UIGestureRecognizerStateBegan || panGesture.state == UIGestureRecognizerStateChanged) {
// get the change (delta)
CGPoint delta = [panGesture translationInView:self.view];
CGPoint center = self.firstButton.center;
center.x += delta.x;
center.y += delta.y;
// and move the button
self.firstButton.center = center;
[panGesture setTranslation:CGPointZero inView:self.view];
}
}
#end
Hope it helps!