Show extent

This sample demonstrates how to watch for changes on the map view.

How to use the sample

Clone the sample repo and copy this widget's folder (within widgets) to the client/your-extensions/widgets folder of your Experience Builder installation.

How it works

A class property onActiveViewChange for the widget is assigned to the function JimuMapView. This function uses the method, which takes two imput parameters, the extent property and a callback function to execute each time the extent property changes. The setState method is called to re-render the widget with the updated state.

onActiveViewChange = (jimuMapView: JimuMapView) => {
    this.extentWatch ='extent', extent => { 

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