How to show GIF through dynamiclayer？

ZhouYC — Mon, 16 May 2022 04:31:21 GMT

I useBaseDynamicLayer.createSubclass to create a layer with a picture. If the picture is static, it can work normally, but if the picture is GIF, only the first frame will be displayed.

Here is my code:

let layerClass = BaseDynamicLayer.createSubclass({ // override BaseDynamicLayer methods getImageUrl(extent, width, height) { return imgUrl }, // override BaseDynamicLayer methods fetchImage(extent, width, height) { let url = this.getImageUrl(extent, width, height) return new Promise((resolve) => { self._requestImg(url).then(data => { let img = data let cvs = document.createElement('canvas') let context = cvs.getContext('2d') cvs.width = width cvs.height = height // context.fillStyle = '#000' // context.fillRect(0, 0, width, height) // context.globalCompositeOperation = 'destination-atop' const pos = self._computePosition(extent, width, height) // console.log(pos) // const sPos = self.mapView.toScreen({ // x: pos.x, // y: pos.y, // spatialReference: {wkid: 4326} // }) context.drawImage(img, pos.x, pos.y, pos.width, pos.height) // context.drawImage(img, 0, 0, width, height) resolve(cvs) }) }) } })

topic How to show GIF through dynamiclayer？ in ArcGIS JavaScript Maps SDK Questions

How to show GIF through dynamiclayer？