地図にピンの代わりに画像を表示するにはどうすればよいですか。これまでのところ、タップでピンを追加することしかできません。私はまだiOSプログラミングに慣れていないので、.mのサンプルコードは非常に役立ちます。
#pragma mark -
#pragma mark MKMapView delegate
- (MKAnnotationView *)mapView:(MKMapView *)mapview viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
static NSString* AnnotationIdentifier = @"AnnotationIdentifier";
MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationIdentifier];
if(annotationView)
return annotationView;
else
{
MKAnnotationView *annotationView = [[[MKAnnotationView alloc] initWithAnnotation:annotation
reuseIdentifier:AnnotationIdentifier] autorelease];
annotationView.canShowCallout = YES;
annotationView.image = [UIImage imageNamed:@"someImage.png"];
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:@selector(writeSomething:) forControlEvents:UIControlEventTouchUpInside];
[rightButton setTitle:annotation.title forState:UIControlStateNormal];
annotationView.rightCalloutAccessoryView = rightButton;
annotationView.canShowCallout = YES;
annotationView.draggable = YES;
return annotationView;
}
return nil;
}
編集:
MKAnnotationView
についてすべて説明することはできますが、Appleが提供するドキュメントは、他のどのソースよりもはるかに優れた説明であることがわかると思います。概要を確認してください。リンクのセクション。
https://developer.Apple.com/documentation/mapkit/mkannotationview
Xcodeのオーガナイザーに移動し、ドキュメントに移動して、weatherMapを検索します。これは、注釈に画像を含むマップの例を示しています。
#pragma mark -
#pragma mark MKMapView delegate
-(void)addAllPinsOnMapView
{
MKCoordinateRegion region = mapViewOffer.region;
region.center = CLLocationCoordinate2DMake(12.9752297537231, 80.2313079833984);
region.span.longitudeDelta= 0.1f;
region.span.latitudeDelta= 0.1f;
[mapViewOffer setRegion:region animated:YES];
mapViewOffer.delegate=self;
arrMapPin=[[NSMutableArray alloc] init];
NSArray *name=[[NSArray alloc]initWithObjects:
@"Title1",
@"Title2",
@"Title3", nil];
NSMutableArray *arrCoordinateStr = [[NSMutableArray alloc] initWithCapacity:name.count];
[arrCoordinateStr addObject:@"12.970760345459,80.2190093994141"];
[arrCoordinateStr addObject:@"12.9752297537231,80.2313079833984"];
[arrCoordinateStr addObject:@"12.9788103103638,80.2412414550781"];
for(int i = 0; i < name.count; i++)
{
NSArray *components = [[arrCoordinateStr objectAtIndex:i] componentsSeparatedByString:@","];
double latitude = [components[0] doubleValue];
double longitude = [components[1] doubleValue];
MKPointAnnotation *mapPin = [[MKPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(latitude, longitude);
mapPin.title = [name objectAtIndex:i];
mapPin.coordinate = coordinate;
[mapViewOffer addAnnotation:mapPin];
}
}
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:
(MKAnnotationView *)view
{
NSLog(@"%@",view.annotation.title);
NSLog(@"%f",view.annotation.coordinate.latitude);
NSLog(@"%f",view.annotation.coordinate.longitude);
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(calloutTapped:)];
[view addGestureRecognizer:tapGesture];
}
-(void)calloutTapped:(UITapGestureRecognizer *) sender
{
NSLog(@"Callout was tapped");
MKAnnotationView *view = (MKAnnotationView*)sender.view;
id <MKAnnotation> annotation = [view annotation];
if ([annotation isKindOfClass:[MKPointAnnotation class]])
{
//[self performSegueWithIdentifier:@"annotationDetailSegue" sender:annotation];
OfferDetailsViewController *objOfferDetailsViewController = [[OfferDetailsViewController alloc]init];
[self.navigationController pushViewController:objOfferDetailsViewController animated:YES];
}
}
- (MKAnnotationView *)mapView:(MKMapView *)theMapView
viewForAnnotation:(id <MKAnnotation>)annotation
{
MKAnnotationView *pinView = nil;
static NSString *defaultPinID = @"annotationViewID";
pinView = (MKAnnotationView *)[mapViewOffer dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil ){
pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID];
}
pinView.canShowCallout = YES;
pinView.image = [UIImage imageNamed:@"placeholder"];
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[infoButton addTarget:self action:@selector(infoButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = infoButton;
return pinView;
}