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PointAnnotation.md

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<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 FIX ME NO DESCRIPTION
  y number none true FIX ME NO DESCRIPTION
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.

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