GT2/GT2-iOS/node_modules/react-native-maps/docs/mapview.md

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<MapView /> Component API

Props

Prop Type Default Note
provider string The map framework to use.

Either "google" for GoogleMaps, otherwise null or undefined to use the native map framework (MapKit in iOS and GoogleMaps in android).
region Region The region to be displayed by the map.

The region is defined by the center coordinates and the span of coordinates to display.
initialRegion Region The initial region to be displayed by the map. Use this prop instead of region only if you don't want to control the viewport of the map besides the initial region.

Changing this prop after the component has mounted will not result in a region change.

This is similar to the initialValue prop of a text input.
liteMode Boolean false Enable lite mode. Note: Android only.
mapType String "standard" The map type to be displayed.

- standard: standard road map (default)
- satellite: satellite view
- hybrid: satellite view with roads and points of interest overlayed
- terrain: (Android only) topographic view
- mutedStandard: more subtle, makes markers/lines pop more (iOS only)
customMapStyle Array Adds custom styling to the map component. See README for more information.
showsUserLocation Boolean false If true the app will ask for the user's location. NOTE: You need to add NSLocationWhenInUseUsageDescription key in Info.plist to enable geolocation, otherwise it is going to fail silently!
userLocationAnnotationTitle String The title of the annotation for current user location. This only works if showsUserLocation is true. There is a default value My Location set by MapView. Note: iOS only.
followsUserLocation Boolean false If true the map will focus on the user's location. This only works if showsUserLocation is true and the user has shared their location. Note: iOS only.
showsMyLocationButton Boolean true If false hide the button to move map to the current user's location.
showsPointsOfInterest Boolean true If false points of interest won't be displayed on the map.
showsCompass Boolean true If false compass won't be displayed on the map.
showsScale Boolean true A Boolean indicating whether the map shows scale information.
showsBuildings Boolean true A Boolean indicating whether the map displays extruded building information.
showsTraffic Boolean true A Boolean value indicating whether the map displays traffic information.
showsIndoors Boolean true A Boolean indicating whether indoor maps should be enabled.
showsIndoorLevelPicker Boolean false A Boolean indicating whether indoor level picker should be enabled. Note: Google Maps only (either Android or iOS with PROVIDER_GOOGLE).
zoomEnabled Boolean true If false the user won't be able to pinch/zoom the map.
minZoomLevel Number 0 Minimum zoom value for the map, must be between 0 and 20
maxZoomLevel Number 20 Maximum zoom value for the map, must be between 0 and 20
rotateEnabled Boolean true If false the user won't be able to pinch/rotate the map.
scrollEnabled Boolean true If false the user won't be able to change the map region being displayed.
pitchEnabled Boolean true If false the user won't be able to adjust the cameras pitch angle.
toolbarEnabled Boolean true Android only If false will hide 'Navigate' and 'Open in Maps' buttons on marker press
cacheEnabled Boolean false If true map will be cached and displayed as an image instead of being interactable, for performance usage.
loadingEnabled Boolean false If true a loading indicator will show while the map is loading.
loadingIndicatorColor Color #606060 Sets loading indicator color, default to #606060.
loadingBackgroundColor Color #FFFFFF Sets loading background color, default to #FFFFFF.
moveOnMarkerPress Boolean true Android only If false the map won't move when a marker is pressed.
legalLabelInsets EdgeInsets If set, changes the position of the "Legal" label link from the OS default. Note: iOS only.

Events

To access event data, you will need to use e.nativeEvent. For example, onPress={e => console.log(e.nativeEvent)} will log the entire event object to your console.

Event Name Returns Notes
onMapReady Callback that is called once the map is fully loaded.
onRegionChange Region Callback that is called continuously when the region changes, such as when a user is dragging the map.
onRegionChangeComplete Region Callback that is called once when the region changes, such as when the user is done moving the map.
onPress { coordinate: LatLng, position: Point } Callback that is called when user taps on the map.
onPanDrag { coordinate: LatLng, position: Point } Callback that is called when user presses and drags the map. NOTE: for iOS scrollEnabled should be set to false to trigger the event
onLongPress { coordinate: LatLng, position: Point } Callback that is called when user makes a "long press" somewhere on the map.
onMarkerPress Callback that is called when a marker on the map is tapped by the user.
onMarkerSelect Callback that is called when a marker on the map becomes selected. This will be called when the callout for that marker is about to be shown. Note: iOS only.
onMarkerDeselect Callback that is called when a marker on the map becomes deselected. This will be called when the callout for that marker is about to be hidden. Note: iOS only.
onCalloutPress Callback that is called when a callout is tapped by the user.
onMarkerDragStart { coordinate: LatLng, position: Point } Callback that is called when the user initiates a drag on a marker (if it is draggable)
onMarkerDrag { coordinate: LatLng, position: Point } Callback called continuously as a marker is dragged
onMarkerDragEnd { coordinate: LatLng, position: Point } Callback that is called when a drag on a marker finishes. This is usually the point you will want to setState on the marker's coordinate again

Methods

Method Name Arguments Notes
animateToRegion region: Region, duration: Number
animateToCoordinate coordinate: LatLng, duration: Number
animateToBearing bearing: Number, duration: Number
animateToViewingAngle angle: Number, duration: Number
setMapBoundaries northEast: LatLng, southWest: LatLng GoogleMaps only
fitToElements animated: Boolean
fitToSuppliedMarkers markerIDs: String[], animated: Boolean If you need to use this in ComponentDidMount, make sure you put it in a timeout or it will cause performance problems.
fitToCoordinates coordinates: Array<LatLng>, options: { edgePadding: EdgePadding, animated: Boolean } If called in ComponentDidMount in android, it will cause an exception. It is recommended to call it from the MapView onLayout event.

Types

type Region {
  latitude: Number,
  longitude: Number,
  latitudeDelta: Number,
  longitudeDelta: Number,
}
type LatLng {
  latitude: Number,
  longitude: Number,
}
type Point {
  x: Number,
  y: Number,
}
enum MapType : String {
  "standard",
  "satellite",
  "hybrid",
  "terrain" //Android only
}
type EdgePadding {
  top: Number,
  right: Number,
  bottom: Number,
  left: Number
}
type EdgeInsets {
  top: Number,
  left: Number,
  bottom: Number,
  right: Number
}