PointAnnotation.md

<MapboxGL.PointAnnotation />

PointAnnotation represents a one-dimensional shape located at a single geographical coordinate.

Consider using ShapeSource and SymbolLayer instead, if you have many points and you have static images,
they'll offer much better performance

.
If you need interctive views please use MarkerView,
as with PointAnnotation on Android child views are rendered onto a bitmap for better performance.

props

Prop	Type	Default	Required	Description
id	string	none	true	A string that uniquely identifies the annotation
title	string	none	false	The string containing the annotation’s title. Note this is required to be set if you want to see a callout appear on iOS.
snippet	string	none	false	The string containing the annotation’s snippet(subtitle). Not displayed in the default callout.
selected	bool	none	false	Manually selects/deselects annotation @type {[type]}
draggable	bool	false	false	Enable or disable dragging. Defaults to false.
coordinate	array	none	true	The center point (specified as a map coordinate) of the annotation.
anchor	shape	{x: 0.5, y: 0.5}	false	Specifies the anchor being set on a particular point of the annotation. The anchor point is specified in the continuous space [0.0, 1.0] x [0.0, 1.0], where (0, 0) is the top-left corner of the image, and (1, 1) is the bottom-right corner. Note this is only for custom annotations not the default pin view. Defaults to the center of the view.
x	number	none	true	See anchor
y	number	none	true	See anchor
onSelected	func	none	false	This callback is fired once this annotation is selected. Returns a Feature as the first param.
onDeselected	func	none	false	This callback is fired once this annotation is deselected.
onDragStart	func	none	false	This callback is fired once this annotation has started being dragged.
onDragEnd	func	none	false	This callback is fired once this annotation has stopped being dragged.
onDrag	func	none	false	This callback is fired while this annotation is being dragged.

methods

refresh()

On android point annotation is rendered offscreen with a canvas into an image.
To rerender the image from the current state of the view call refresh.
Call this for example from Image#onLoad.

arguments

Name	Type	Required	Description