Eventos e gestos de marcador
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Quando propriedades avançadas específicas do marcador são definidas, é possível monitorar eventos
como toques e gestos.
Se um marcador for tocado, será possível conferir mais informações, como um título ou snippet. Também é possível mover marcadores arrastáveis com um gesto de toque e manter pressionado.
Responder a eventos de marcador
Para responder a eventos de marcador, adicione
o protocolo GMSMapViewDelegate
à sua visualização e
implemente o callback correspondente. Este exemplo identifica o title
e o
snippet
de um marcador selecionado.
Swift
// MARK: GMSMapViewDelegate
func mapView(_ mapView: GMSMapView, didTap marker: GMSMarker) -> Bool {
if let title = marker.title {
if let snippet = marker.snippet {
print("marker title: \(title): snippet: \(snippet)")
}
}
return true
}
Objective-C
// MARK: GMSMapViewDelegate
- (BOOL)mapView:(GMSMapView *)mapView didTapMarker:(GMSMarker *)marker {
if (marker.title && marker.snippet) {
NSLog(@"marker with title:%@ snippet: %@", marker.title, marker.snippet)
}
return YES;
}
Controlar a visibilidade do marcador por nível de zoom do mapa
Para controlar a visibilidade de GMSMarker
, implemente o
protocolo GMSMapViewDelegate
e adicione uma condição para definir
GMSMarker.map
.
Swift
// MARK: GMSMapViewDelegate
func mapView(_ mapView: GMSMapView, didChange position: GMSCameraPosition) {
marker.map = position.zoom >= 14 ? mapView : nil
}
Objective-C
// MARK: GMSMapViewDelegate
- (void)mapView:(GMSMapView *)mapView didChangeCameraPosition:(GMSCameraPosition *)position {
marker.map = position.zoom >= 14 ? mapView : nil;
}
Tornar um marcador arrastável
Ao ativar a propriedade draggable
, os usuários podem arrastar marcadores no mapa com
um gesto de toque e manter pressionado. Para tornar um marcador arrastável, defina a propriedade GMSMarker.draggable
como "true".
Swift
marker.draggable = true
Objective-C
marker.draggable = YES;
Exceto em caso de indicação contrária, o conteúdo desta página é licenciado de acordo com a Licença de atribuição 4.0 do Creative Commons, e as amostras de código são licenciadas de acordo com a Licença Apache 2.0. Para mais detalhes, consulte as políticas do site do Google Developers. Java é uma marca registrada da Oracle e/ou afiliadas.
Última atualização 2025-08-31 UTC.
[null,null,["Última atualização 2025-08-31 UTC."],[[["\u003cp\u003eGoogle Maps SDK for iOS allows you to monitor marker events like taps and gestures, displaying information like title and snippet when tapped.\u003c/p\u003e\n"],["\u003cp\u003eYou can enable marker dragging using a long press gesture by setting the \u003ccode\u003eGMSMarker.draggable\u003c/code\u003e property.\u003c/p\u003e\n"],["\u003cp\u003eMarker visibility can be controlled based on the map's zoom level using the \u003ccode\u003eGMSMapViewDelegate\u003c/code\u003e and setting the \u003ccode\u003eGMSMarker.map\u003c/code\u003e property conditionally.\u003c/p\u003e\n"],["\u003cp\u003eTo respond to marker events and access details like title and snippet, implement the \u003ccode\u003eGMSMapViewDelegate\u003c/code\u003e protocol and its corresponding callback methods.\u003c/p\u003e\n"]]],["Markers' events, like taps and gestures, can be monitored by adding `GMSMapViewDelegate`. Tapped markers reveal their title and snippet, set using `GMSMarker.title`. Markers can be made draggable with `GMSMarker.draggable`, allowing movement via long press. You can control marker visibility based on zoom level by setting `GMSMarker.map` within the `GMSMapViewDelegate` callback. Implementing the delegate protocol also allows for handling custom responses to specific marker interactions.\n"],null,["When specific advanced marker properties are set, you can monitor marker events\nsuch as taps and [gestures](/maps/documentation/ios-sdk/controls#map_gestures).\nIf a marker is tapped, one can see additional information such as a marker title\nor snippet. One can also move draggable markers using a long press gesture.\n\n- To track marker events, add the [`GMSMapViewDelegate`](/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate) to your `view`.\n- To make a marker draggable, set the [`GMSMarker.draggable`](/maps/documentation/ios-sdk/reference/objc/Classes/GMSMarker#draggable) property.\n- To set descriptive text for a marker, use the [`GMSMarker.title`](/maps/documentation/ios-sdk/reference/objc/Classes/GMSOverlay#title) property.\n\nRespond to marker events\n\nYou can respond to [marker events](/maps/documentation/ios-sdk/events) by adding\nthe [`GMSMapViewDelegate`](/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate) protocol to your view and\nimplementing the corresponding callback. This example identifies the `title` and\n`snippet` for a selected marker. \n\nSwift \n\n```swift\n// MARK: GMSMapViewDelegate\n\nfunc mapView(_ mapView: GMSMapView, didTap marker: GMSMarker) -\u003e Bool {\n if let title = marker.title {\n if let snippet = marker.snippet {\n print(\"marker title: \\(title): snippet: \\(snippet)\")\n }\n }\n return true\n}\n```\n\nObjective-C \n\n```objective-c\n// MARK: GMSMapViewDelegate\n\n- (BOOL)mapView:(GMSMapView *)mapView didTapMarker:(GMSMarker *)marker {\n if (marker.title && marker.snippet) {\n NSLog(@\"marker with title:%@ snippet: %@\", marker.title, marker.snippet)\n }\n return YES;\n}\n```\n\nControl marker visibility by map zoom level\n\nTo control the visibility of [`GMSMarker`](/maps/documentation/ios-sdk/reference/objc/Classes/GMSMarker), implement the\n[`GMSMapViewDelegate`](/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate) protocol and add a condition to set\n`GMSMarker.map`. \n\nSwift \n\n```swift\n// MARK: GMSMapViewDelegate\n\nfunc mapView(_ mapView: GMSMapView, didChange position: GMSCameraPosition) {\n marker.map = position.zoom \u003e= 14 ? mapView : nil\n}\n```\n\nObjective-C \n\n```objective-c\n// MARK: GMSMapViewDelegate\n\n- (void)mapView:(GMSMapView *)mapView didChangeCameraPosition:(GMSCameraPosition *)position {\n marker.map = position.zoom \u003e= 14 ? mapView : nil;\n}\n```\n\nMake a marker draggable\n\nWhen you enable the `draggable` property users can drag markers on the map with\na long press gesture. To make a marker draggable, set the `GMSMarker.draggable`\nproperty to true. \n\nSwift \n\n```swift\nmarker.draggable = true\n```\n\nObjective-C \n\n```objective-c\nmarker.draggable = YES;\n```"]]