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POhow to set two different pin colors when populating mapview
 

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  1. POhow to set two different pin colors when populating mapview
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    <p>I am parsing two json feeds. The first json feed parses pharmacies of a particular region and populates the mapview, the second feed parses a list of burger shops present in that region and populates the mapview. What I want is to set the pins representing the first feed in red color and the second feed in green color. I am a noob, could you help me out? Below is the code.</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; self.title=@"Map"; [self secondMap]; [self firstMap]; } -(void)secondMap { jsonurl1=[NSURL URLWithString:@"http://dev-parkguiden.knutpunkten.se/Api/GetPharmacyJson"]; NSURLRequest *request1 = [NSURLRequest requestWithURL:jsonurl1 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; connection1=[[[NSURLConnection alloc] initWithRequest:request1 delegate:self] autorelease]; self.jsonData1=[[NSString alloc]initWithContentsOfURL:jsonurl1]; self.jsonArray1 = [self.jsonData1 objectFromJSONString]; NSLog(@"blah:%@",jsonArray1); items= [self.jsonArray1 objectForKey:@"pharmacies"]; NSDictionary *bam=[items valueForKey:@"location"]; for (NSDictionary *item in bam) { latitude=[[item valueForKey:@"latitude"] floatValue]; longitude=[[item valueForKey:@"longitude"] floatValue]; NSLog(@"String3:%f",latitude); NSLog(@"String4:%f",longitude); Place* home = [[[Place alloc] init] autorelease]; home.name = [item valueForKey:@"Name"]; // home.description=[item valueForKey:@"description"]; home.latitude = latitude; home.longitude = longitude; PlaceMark *from = [[[PlaceMark alloc] initWithPlace:home] autorelease]; [mapView addAnnotation:from]; NSLog(@"the latitude:%f",latitude); NSLog(@"the latitude:%f",longitude); [self centerMap]; } } -(void)firstMap { jsonurl=[NSURL URLWithString:@"http://dev-parkguiden.knutpunkten.se/Api/WhereIam?longitude=18.105469&amp;latitude=59.304786&amp;distance=100"]; NSURLRequest *request = [NSURLRequest requestWithURL:jsonurl cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; connection1=[[[NSURLConnection alloc] initWithRequest:request delegate:self] autorelease]; //NSLog(@"jsonurl:%@",jsonurl); self.jsonData=[[NSString alloc]initWithContentsOfURL:jsonurl]; self.jsonArray = [self.jsonData objectFromJSONString]; NSLog(@"blah:%@",jsonArray); items = [self.jsonArray objectForKey:@"parks"]; story = [[NSMutableArray array]retain]; media1 = [[NSMutableArray array]retain]; url=[[NSMutableArray array]retain]; descriptiondesc=[[NSMutableArray array]retain]; for (NSDictionary *item in items ) { latitude=[[item valueForKey:@"latitude"] floatValue]; longitude=[[item valueForKey:@"longitude"] floatValue]; NSLog(@"String1:%f",latitude); NSLog(@"String2:%f",longitude); Place* home = [[[Place alloc] init] autorelease]; home.name = [item valueForKey:@"Name"]; // home.description=[item valueForKey:@"description"]; home.latitude = latitude; home.longitude = longitude; PlaceMark *from = [[[PlaceMark alloc] initWithPlace:home] autorelease]; [mapView addAnnotation:from]; NSLog(@"the latitude:%f",latitude); NSLog(@"the latitude:%f",longitude); [self centerMap]; } } -(void) centerMap { MKCoordinateRegion region; MKCoordinateSpan span; span.longitudeDelta=0.1; span.latitudeDelta=0.1; CLLocationCoordinate2D location=mapView.userLocation.coordinate; location.latitude=latitude; location.longitude=longitude; region.span=span; region.center=location; [mapView setRegion:region animated:TRUE]; [mapView regionThatFits:region]; } - (MKAnnotationView *)mapView:(MKMapView *)map viewForAnnotation:(id &lt;MKAnnotation&gt;)annotation { mapView.mapType=MKMapTypeHybrid; mapView.showsUserLocation=YES; MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"]; annView.pinColor = MKPinAnnotationColorGreen; annView.animatesDrop=TRUE; annView.canShowCallout = YES; annView.calloutOffset = CGPointMake(-5, 5); UIButton *detailButton=[UIButton buttonWithType:UIButtonTypeDetailDisclosure]; //NSInteger annotationValue=[self.annotations indexOfObject:annotation]; [detailButton addTarget:self action:@selector(showDetailView) forControlEvents:UIControlEventTouchUpInside]; annView.rightCalloutAccessoryView=detailButton; return annView; } </code></pre>
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    1. CODon't set the mapType and showsUserLocation in viewForAnnotation which is called for each annotation. Those properties apply to the whole map and are more appropriate to set in viewDidLoad.
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      1. POhow to set two different pin colors when populating mapview
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