iphone - touchesbegan with multiple UIImageView detects incorrect UIImageView -

i'm having problem touch detection on ipad.

i subclassed uiimageview this:

@interface myuiimageview : uiimageview  {     bool _dragactive;     cgpoint originallocation; }  @end  @implementation myuiimageview  - (void)touchesbegan:(nsset *)touches withevent:(uievent *)event  {        _dragactive = yes;     originallocation = self.center; }  - (void)touchesmoved:(nsset *)touches withevent:(uievent *)event  {     if (_dragactive)      {         uitouch* touch = [touches anyobject];         self.center = [touch locationinview:self.superview];     } }  - (void)touchesended:(nsset *)touches withevent:(uievent *)event  {     if (_dragactive)     {         self.center = originallocation;     }      _dragactive = no; }  - (void)touchescancelled:(nsset *)touches withevent:(uievent *)event  {     if (_dragactive)      {         self.center = originallocation;     }      _dragactive = no; }  @end 

i have multiple imageview(myuiimageview) controls on controller view side side touchesbegan being called front although separated on controller view.

looks there invisible "detection layer" spawns beyond imageviews.

when click , drag imageview 1 dragged 1 left or right depending on 1 in front. if change z axis behavior repeats on images on front.

i m not getting clear idea of exact requirement.if want touches detected particular imageview (i.e imageview @ leftmost or rightmost) try assing object uitouch instead of using anyobject ->
uitouch* touch = [touches anyobject];
use way if works uitouch* touch = [touches imgviewobject];