ios - How to get ViewController Value From Class -


maybe problem strange, want know how that.

i have class custom annotation:

-(mkannotationview *)annotation     {         nsarray *imagearray = [[nsarray alloc] initwithobjects:@"pin1",@"pin2",@"pin3", nil];          annotationviewcontroller *vc = [[annotationviewcontroller alloc] initwithnibname:@"annotationviewcontroller" bundle:nil];          mkannotationview *annotationview1 = [[mkannotationview alloc] init];          annotationview1.frame = cgrectmake(0, 0, 30, 30);         annotationview1.canshowcallout = true;          mkannotationview *annotationview2 = [[mkannotationview alloc] initwithannotation:self reuseidentifier:@"annotation"];          annotationview2.image = [uiimage imagenamed:imagearray[vc.i]];         annotationview2.frame = cgrectmake(0, 0, 30, 30);         annotationview2.layer.cornerradius = 15;         annotationview2.layer.maskstobounds = true;         [annotationview1 addsubview:annotationview2];          nslog(@"annotationclass = %d", vc.i);          return  annotationview1;     }      @end

and annotationviewcontroller's viewforannotation function that:

- (nullable mkannotationview *)mapview:(mkmapview *)mapview viewforannotation:(id <mkannotation>)annotation {     if ([annotation iskindofclass:[annotation class]]) {          // custom annotation         annotation *customannotaton = [[annotation alloc] init];         mkannotationview *annotationview = [mapview dequeuereusableannotationviewwithidentifier:@"annotation"];          if (annotationview == nil) {             annotationview = customannotaton.annotation;             self.i += 1;             nslog(@"annotationviewcontroller = : %d", self.i);         }         return annotationview;     }     return nil; }  @end

because want make 3 annotations include different image, create array input images.

when annotation make, annotation image should different each other want. use int "i" array index , put image each annotations that:

 annotationviewcontroller *vc = [[annotationviewcontroller alloc] initwithnibname:@"annotationviewcontroller" bundle:nil];

and :

annotationview2.image = [uiimage imagenamed:imagearray[vc.i]];

to index , set image each annotation.

the problem is, when run app, annotations image same. print index , result that:

[7783:2749915] annotationclass = 0 [7783:2749915] annotationviewcontroller = 1 [7783:2749915] annotationclass = 0 [7783:2749915] annotationviewcontroller = 2 [7783:2749915] annotationclass = 0 [7783:2749915] annotationviewcontroller = 3

as see code, "annotationclass i" print annotation class, , "annotationviewcontroller i" print form annotationviewcontroller.

obviously, value "i" @ annotationclass call annotationviewcontroller not value itself.

i think problem when call class, annotationviewcontroller init each time, value 0.

anyone can me fix problem how can annotationviewcontroller's value class?

i think problem when call class, annotationviewcontroller init each time, value 0.

exactly right! saying:

annotationviewcontroller *vc = [[annotationviewcontroller alloc] initwithnibname:@"annotationviewcontroller" bundle:nil];

that makes brand new annotationviewcontroller. presumably not want do. want refer annotationviewcontroller already exists.


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