objective c - delegate method not getting called -

i have looked @ other questions same problem cannot seem heard around it. pretty sure have done correctly not first time using delegates.

//pdfview.h @class pdfview;  @protocol pdfviewdelegate <nsobject> -(void)trialwithpoints:(pdfview*)pdfview; @end  @interface pdfview : uiview @property (nonatomic, weak) id <pdfviewdelegate> delegate; 

in implementation file trying call delegate method touchesmoved delegate of view

//pdfview.m - (void)touchesmoved:(nsset *)touches withevent:(uievent *)event {     [self.delegate trialwithpoints:self]; } 

the class delegate method implemented

//points.h #import "pdfview.h" @interface points : nsobject <pdfviewdelegate>  //points.m  //this delegate set - (id)init { if ((self = [super init])) {          pdfview = [[pdfview alloc]init];       pdfview.delegate = self;  }  return self;  }  -(void)trialwithpoints:(pdfview *)pdf {     nslog(@"the delegate method called pass points client"); } 

so how have written delegate , somehow delegate nil , delegate method never called.

at moment not doing delegate, want see working.

any advices on highly appreciated.

i think because did not hold reference instance of delegate, , got released because declared weak. might doing this:

pdfview.delegate = [[points alloc] init]; 

which should fix like:

_points = [[points alloc] init]; pdfview.delegate = _points; 

where _points instance variable.