objective c - MKPolylines-routeLines not showing in my MKMapView, but everything is correct? -

objective c - MKPolylines-routeLines not showing in my MKMapView, but everything is correct? -

i new may i'm missing simple or whatever else.

basically want draw straight line point point, in case have of points in each line should drawn in array of coordinates. , utilize overlay method draw line. , of in mkmapview defined , configured (correctly).

so here code utilize fill array of coordinates , create overlay/polyline:

cllocationcoordinate2d coordinatearray[arrayoflatitudes.count]; (int = 0; < arrayoflatitudes.count; i++) { double templatitude = [[arrayoflatitudes objectatindex:(i)] doublevalue]; double templongitude = [[arrayoflongitudes objectatindex:(i)] doublevalue]; coordinatearray[i] = cllocationcoordinate2dmake(templatitude, templongitude); } self.routeline = [mkpolyline polylinewithcoordinates:coordinatearray count:arrayoflatitudes.count]; [self.mapview setvisiblemaprect:[self.routeline boundingmaprect]]; //if want route visible [self.mapview addoverlay:self.routeline];

and viewforoverlay method asume configures routeline:

(mkoverlayview *)mapview:(mkmapview *)mapview viewforoverlay:(id <mkoverlay>)overlay { if ([overlay iskindofclass:[mkpolyline class]]) { mkpolylineview *mapoverlayview = [[mkpolylineview alloc] initwithpolyline:overlay]; //add autorelease if not using arc mapoverlayview.strokecolor = [uicolor redcolor]; mapoverlayview.linewidth = 3; homecoming mapoverlayview; } homecoming nil;

}

i have these declarations in .h well:

@property (nonatomic, retain) mkpolyline *routeline; @property (nonatomic, retain) mkpolylineview *routelineview;

i don't know why can't see routeline drawn in mapview, because have used exact logic(order of things) in class , lines appear no problem.

what missing here? please help me

thanks in advance

i forgot mention,the first block of code within method called "waitforme" (void). im calling waitforme viewdidload method.

objective-c xcode polyline mkoverlay mkpolyline