topic Widgets 4x: Listening for pointer events on a MapView in ArcGIS JavaScript Maps SDK Questions

Widgets 4x: Listening for pointer events on a MapView

DirkVandervoort — Fri, 10 Dec 2021 21:24:51 GMT

I'm trying to figure out how to listen for pointer events on a MapView in my widget. I'm not getting very far... For example:

postInitialize() {
 watchUtils.on(this, "view", "pointer-down", () => this._onPointerDown());
}‍‍‍

will fire the _onPointerDown method when the MapView is clicked on. However, what I'm really interested in are the properties of the pointer-down event. e.g., x, y, etc. : MapView | API Reference | ArcGIS API for JavaScript 4.3

Any advice is appreciated - I'm just looking for an opening TIA

Re: Widgets 4x: Listening for pointer events on a MapView

thejuskambi — Sat, 18 Mar 2017 04:12:26 GMT

You need to use the instance of MapView to add listener for the event like below.

mapView.on("pointer-down",() => this._onPointerDown());‍

Re: Widgets 4x: Listening for pointer events on a MapView

DirkVandervoort — Fri, 10 Dec 2021 21:24:54 GMT

Yep!

this.view.on("pointer-down",(evt:PointerEvent) => this._onPointerDown(evt));
‍

and

private _onPointerDown(evt:PointerEvent) {
 // do something with the evt
}‍‍‍

Brilliant!

Re: Widgets 4x: Listening for pointer events on a MapView

Travis_L_Riffle — Wed, 28 Feb 2018 23:10:08 GMT

My "this" keyword is not available.... Am I the only one? Using AngularJS.