objective c - Custom curent location Annotation pin not updating with core location -

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trying add custom pin current location, location not update. after setting setshowsuserlocation = yes;

- (id)initwithannotation:(id <mkannotation>)annotation reuseidentifier:(nsstring *)reuseidentifier {      self = [super initwithannotation:annotation reuseidentifier:reuseidentifier];     if ([[annotation title] isequaltostring:@"current location"]) {         self.image = [uiimage imagenamed:[nsstring stringwithformat:@"cursor_%i.png", [[session instance].current_option cursorvalue]+1]];     }

however, if set return nil; works fine, lose custom image. want work. appreciated.

as you've seen setshowsuserlocation flag shows current location using default blue bubble.

what need here listen location updates phone , manually reposition annotation yourself. can creating cllocationmanager instance , remove , replace annotation whenever location manager notifies delegate of update: 

- (void)locationmanager:(cllocationmanager *)manager     didupdatetolocation:(cllocation *)newlocation            fromlocation:(cllocation *)oldlocation {   // update annotation position here }

to reposition coordinates, have class, placemark, conforms protocol mkannotation:

//--- .h ---  #import <foundation/foundation.h> #import <mapkit/mapkit.h>  @interface placemark : nsobject <mkannotation> { }  @property (nonatomic, readonly) cllocationcoordinate2d coordinate; @property (nonatomic, retain) nsstring *strsubtitle; @property (nonatomic, retain) nsstring *strtitle;  -(id)initwithcoordinate:(cllocationcoordinate2d) coordinate; - (nsstring *)subtitle; - (nsstring *)title;  @end  //--- .m ---  @implementation placemark  @synthesize coordinate; @synthesize strsubtitle; @synthesize strtitle;  - (nsstring *)subtitle{     return self.strsubtitle; } - (nsstring *)title{     return self.strtitle; }  -(id)initwithcoordinate:(cllocationcoordinate2d) c {     self.coordinate = c;     [super init];     return self; }  @end

then in mapview controller place annotation with:

- (void) setplacemarkwithtitle:(nsstring *) title andsubtitle:(nsstring *) subtitle forlocation: (cllocationcoordinate2d) location {      //remove pins there...     nsarray *pins = [mapview annotations];      (int = 0; i<[pins count]; i++) {       [mapview removeannotation:[pins objectatindex:i]];     }      placemark *placemark=[[placemark alloc] initwithcoordinate:location];     placemark.strtitle = title;     placemark.strsubtitle = subtitle;     [mapview addannotation:placemark];       [self setspan]; //a custom method ensures map centered on annotation  }

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