objective c - ios drag and drop subview only working once -


I have UIView in which I want to be able to drag and drop the subview, and it is working fine Once . 

  - (zero) pan: (UIPanGestureRecognizer *) identifier {if (recognizer.state == UIGestureRecognizerStateBegan) {CGPoint startPos = [identifier location InView: self]; (Self.subviews in UIControl * sv) {If ([sv point end startPos withEvent: zero]) {self.controlBeingDragged = sv; }}} If (((recognizer.state == UIGestureRecognizerStateChanged) || (recognizer.state == UIGestureRecognizerStateEnded)) & amp; amp; amp; & amp; amp; amp; amp; ControlBeingDragged) {CGPoint Translation = [Identifier Translation InView: self ]; Self.controlBeingDragged.center = CPExMake (Self ControlledBangraGrid Center.x + TranslationX, Setroiling Dredged Center. + Translation.); [Identifier set conversion: CGPointZero inView: self]; If (recognizer.state == UIGestureRecognizerStateEnded) {self.controlBeingDragged = zero; However, if I try to pull the same UIControll again, that scene will no longer know where it is. I can pull it back again from the original state, so clearly there is something that I am not doing to inform the view that its subview has been taken but what?   
 
 
 I wonder if this is working once.  point-in: accompanying document:  requires a point in  receiver's  coordinate system, but you send a point in the receiver's  supervision  coordinate system Are there.  pointInside: withEvent:  Before sending a point in the message, you can use  convertPoint: toView:  to change the point in the subview's coordinating system.     CGPaint SubViewpoint = [Self Convertpoint: Startpages to Value: SV]; If you want to see if the  - [UIView hitTest: withEvent:]   
 Code> message can replace the entire subview-search loop.

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