根據預設,搜尋點會與其對應的圖示一併顯示在基本地圖上。搜尋點包括公園、學校、政府大樓
內容。此外,地圖預設會顯示「商家」搜尋點。
類型為 kGMSTypeNormal
。商家搜尋點代表商家,例如商店、
餐廳、飯店等
每個搜尋點都對應至一個地點 ID。 (根據 Places SDK for iOS 所定義)。舉例來說,休閒公園是搜尋點,但像噴水池這類的項目通常就不是搜尋點 (除非其本身具有國家或歷史意義)。
監聽搜尋點的點擊事件
如果您想要回應輕觸搜尋點的使用者,請實作 GMSMapViewDelegate
,並實作 mapView(_:didTapPOIWithPlaceID:name:location:)
方法,如以下範例所示:
Swift
import GoogleMaps class POI: UIViewController, GMSMapViewDelegate { override func loadView() { let camera = GMSCameraPosition.camera( withLatitude: 47.603, longitude:-122.331, zoom:14 ) let mapView = GMSMapView.map(withFrame: .zero, camera: camera) mapView.delegate = self self.view = mapView } func mapView( _ mapView: GMSMapView, didTapPOIWithPlaceID placeID: String, name: String, location: CLLocationCoordinate2D ) { print("You tapped \(name): \(placeID), \(location.latitude)/\(location.longitude)") } }
Objective-C
#import "POI.h" @import GoogleMaps; @interface POI () <GMSMapViewDelegate> @end @implementation POI - (void)loadView { GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:47.603 longitude:-122.331 zoom:14]; GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera]; mapView.delegate = self; self.view = mapView; } #pragma mark - GMSMapViewDelegate - (void)mapView:(GMSMapView *)mapView didTapPOIWithPlaceID:(NSString *)placeID name:(NSString *)name location:(CLLocationCoordinate2D)location { NSLog(@"You tapped %@: %@, %f/%f", name, placeID, location.latitude, location.longitude); } @end
在資訊視窗中顯示詳細資料
根據預設,地圖上會顯示搜尋點,但沒有預設點擊 UI (API 會停止自動顯示資訊視窗或其他使用者介面, 使用者輕觸搜尋點)。以下範例說明如何使用標記顯示 POI 的資訊視窗:
Swift
// Declare GMSMarker instance at the class level. let infoMarker = GMSMarker() // Attach an info window to the POI using the GMSMarker. func mapView( _ mapView: GMSMapView, didTapPOIWithPlaceID placeID: String, name: String, location: CLLocationCoordinate2D ) { infoMarker.snippet = placeID infoMarker.position = location infoMarker.title = name infoMarker.opacity = 0; infoMarker.infoWindowAnchor.y = 1 infoMarker.map = mapView mapView.selectedMarker = infoMarker }
Objective-C
// Declare a GMSMarker instance at the class level. GMSMarker *infoMarker; // Attach an info window to the POI using the GMSMarker. - (void)mapView:(GMSMapView *)mapView didTapPOIWithPlaceID:(NSString *)placeID name:(NSString *)name location:(CLLocationCoordinate2D)location { infoMarker = [GMSMarker markerWithPosition:location]; infoMarker.snippet = placeID; infoMarker.title = name; infoMarker.opacity = 0; CGPoint pos = infoMarker.infoWindowAnchor; pos.y = 1; infoMarker.infoWindowAnchor = pos; infoMarker.map = mapView; mapView.selectedMarker = infoMarker; }
停止在地圖上顯示搜尋點
將自訂樣式套用至所有搜尋點或特定類別的搜尋點,即可隱藏搜尋點。
下列 JSON 樣式宣告會隱藏地圖上的所有商家搜尋點:
[
{
"featureType": "poi.business",
"stylers": [
{ "visibility": "off" }
]
}
]
再舉一個例子,下列 JSON 簡化了所有類別搜尋點的顯示方式:
[
{
"featureType": "poi",
"stylers": [
{ "visibility": "simplified" }
]
}
]
詳情請參閱使用樣式設定隱藏地圖項目指南。