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MKMapviewピンを場所に配置します（長い/緯度）

私には緯度と長い値があり、この場所にピンをドロップできるようにする必要があります。

誰もがこれにどう取り組むかについていくつかのアドバイスを提供できますか？

objective-cmkmapviewmkannotationmkannotationview
18
3sl

CLLocationCoordinate2D で定義された特定の場所にピンをドロップするための以下の非常に簡単な解決策を見つけます

MKMapViewのドロップピン

編集：

CLLocationCoordinate2D  ctrpoint;
ctrpoint.latitude = 53.58448;
ctrpoint.longitude =-8.93772;
AddressAnnotation *addAnnotation = [[AddressAnnotation alloc] initWithCoordinate:ctrpoint]; 
[mapview addAnnotation:addAnnotation];
[addAnnotation release];
22
Jhaliya

あなたがすべき：
1。 MapKitフレームワークをプロジェクトに追加します。 2. MKAnnotationプロトコルを実装するクラスを作成します。
サンプル：

Annotation.h

@interface Annotation : NSObject <MKAnnotation> {
    NSString *_title;
    NSString *_subtitle;

    CLLocationCoordinate2D _coordinate;
}

// Getters and setters
- (void)setTitle:(NSString *)title;
- (void)setSubtitle:(NSString *)subtitle;

@end

Annotation.m

@implementation Annotation

#pragma mark -
#pragma mark Memory management

- (void)dealloc {
    [self setTitle:nil];
    [self setSubtitle:nil];

    [super dealloc];
}

#pragma mark -
#pragma mark Getters and setters

- (NSString *)title {
    return _title;
}

- (NSString *)subtitle {
    return _subtitle;
}

- (void)setTitle:(NSString *)title {    
    if (_title != title) {
        [_title release];
        _title = [title retain];
    }
}

- (void)setSubtitle:(NSString *)subtitle {
    if (_subtitle != subtitle) {
        [_subtitle release];
        _subtitle = [subtitle retain];
    }
}

- (CLLocationCoordinate2D)coordinate {
    return _coordinate;
}

- (void)setCoordinate:(CLLocationCoordinate2D)newCoordinate {
    _coordinate = newCoordinate;
}

@end

2.このクラスのインスタンスを作成し、lat/lonプロパティを設定します
3。次のメソッドを使用して、インスタンスをMKMapViewオブジェクトに追加します。

- (void)addAnnotation:(id<MKAnnotation>)annotation

4.マップのデリゲートを設定し、次のメソッドを実装する必要があります。

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
    if ([annotation isKindOfClass:[MKUserLocation class]]) {
        return nil;
    }

    static NSString* ShopAnnotationIdentifier = @"shopAnnotationIdentifier";
    MKPinAnnotationView *pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:ShopAnnotationIdentifier];
    if (!pinView) {
        pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:ShopAnnotationIdentifier] autorelease];
        pinView.pinColor = MKPinAnnotationColorRed;
        pinView.animatesDrop = YES;
    }
    return pinView;
}
16
Infinite Possibilities

これは、ARCが有効になっていて、MapKitフレームワークが含まれていることを前提としています。

最初に、MKAnnotationプロトコルを実装するクラスを作成します。これをMapPinAnnotationと呼びます。

MapPinAnnotation.h

@interface MapPinAnnotation : NSObject <MKAnnotation>

@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
@property (nonatomic, readonly) NSString* title;
@property (nonatomic, readonly) NSString* subtitle;

- (id)initWithCoordinates:(CLLocationCoordinate2D)location
                placeName:(NSString *)placeName
              description:(NSString *)description;

@end

MapPinAnnotation.m

@implementation MapPinAnnotation

@synthesize coordinate;
@synthesize title;
@synthesize subtitle;

- (id)initWithCoordinates:(CLLocationCoordinate2D)location
                placeName:(NSString *)placeName
              description:(NSString *)description;
{
  self = [super init];
  if (self)
  {    
    coordinate = location;
    title = placeName;
    subtitle = description;
  }

  return self;
}

@end

次に、以下を使用して注釈をマップに追加します。

CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(34.421496,
                                                              -119.70182);

MapPinAnnotation* pinAnnotation = 
  [[MapPinAnnotation alloc] initWithCoordinates:coordinate
                                      placeName:nil
                                    description:nil];
[mMapView addAnnotation:pinAnnotation];

包含クラスは、MKMapViewDelegateプロトコルを実装する必要があります。特に、ピンを描画するには、次の関数を定義する必要があります。

- (MKAnnotationView *)mapView:(MKMapView *)mapView 
            viewForAnnotation:(id <MKAnnotation>)annotation
{
  if ([annotation isKindOfClass:[MKUserLocation class]])
  {
    return nil;
  }

  static NSString* myIdentifier = @"myIndentifier";
  MKPinAnnotationView* pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:myIdentifier];

  if (!pinView)
  {
    pinView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:myIdentifier];
    pinView.pinColor = MKPinAnnotationColorRed;
    pinView.animatesDrop = NO;
  }
  return pinView;
}

この例では、MKAnnotationのタイトルとサブタイトルのメンバー変数は使用されていませんが、デリゲート関数で表示できます。

5
filitchp
-(MKPointAnnotation *)showClusterPoint:(CLLocationCoordinate2D)coords withPos:(NSString *)place
{
    float  zoomLevel = 0.5;
    region = MKCoordinateRegionMake (coords, MKCoordinateSpanMake (zoomLevel, zoomLevel));
    [mapView setRegion: [mapView regionThatFits: region] animated: YES];

    point = [[MKPointAnnotation alloc]init];
    point.coordinate = coords;
    point.title=place;

    [mapView addAnnotation:point];

    return point;
}
3
Ankit Goyal

Swiftバージョン

        let location = CLLocationCoordinate2DMake(13.724362, 100.515342);
        let region = MKCoordinateRegionMakeWithDistance(location, 500.0, 700.0)
        self.mkMapView.setRegion(region, animated: true)
        // Drop a pin
        let dropPin = MKPointAnnotation();
        dropPin.coordinate = location;
        dropPin.title = "Le Normandie Restaurant";
        self.mkMapView.addAnnotation(dropPin);
2
Deepak Thakur
Please use this code. its working fine.
-(void)addAllPinsOnMapView
{
MKCoordinateRegion region = mapViewOffer.region;
region.center = CLLocationCoordinate2DMake(23.0225, 72.5714);
region.span.longitudeDelta= 0.1f;
region.span.latitudeDelta= 0.1f;
[mapViewOffer setRegion:region animated:YES];
mapViewOffer.delegate=self;

MKPointAnnotation *mapPin = [[MKPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(23.0225, 72.5714);
mapPin.title = @"Title";
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);
}

- (MKAnnotationView *)mapView:(MKMapView *)theMapView 
viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
{
    ((MKUserLocation *)annotation).title = @"Current Location";
    return nil;
}
else
{
    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;
    pinView.rightCalloutAccessoryView.tag=1;
    return pinView;
}
}
- (MKPinAnnotationView*)myMap:(MKMapView*)myMap viewForAnnotation:
(id<MKAnnotation>)annotation{

MKPinAnnotationView *pin = [[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:@"CustomPin"];

UIImage *icon = [UIImage imageNamed:@"bustour.png"];
UIImageView *iconView = [[UIImageView alloc] initWithFrame:CGRectMake(8,0,32,37)];

if(icon == nil)
    NSLog(@"image: ");
else
    NSLog(@"image: %@", (NSString*)icon.description);

[iconView setImage:icon];
[pin addSubview:iconView];
pin.canShowCallout = YES;
pin.pinColor = MKPinAnnotationColorPurple;

return pin;
}

- (IBAction)btnLocateMe:(UIButton *)sender
{
[mapViewOffer setCenterCoordinate:mapViewOffer.userLocation.location.coordinate animated:YES];
}
0
Masterios