HarmonyOS 如何使用image.createPixelMaph创建PixelMap

此属性的colors为 BGRA_8888格式的颜色数组。 可以在

function onImageArrival(receiver: image.ImageReceiver): void {
  receiver.on('imageArrival', () => {
    receiver.readNextImage((err: BusinessError, nextImage: image.Image) => {
      if (err || nextImage === undefined) {
        console.error('readNextImage failed');
        return;
      }
      nextImage.getComponent(image.ComponentType.JPEG, (err: BusinessError, imgComponent: image.Component) => {
        if (err || imgComponent === undefined) {
          console.error('getComponent failed');
        }
        if (imgComponent && imgComponent.byteBuffer as ArrayBuffer) {
          // do something...  这里使用
        } else {
          console.error('byteBuffer is null');
        }
        nextImage.release();
      })
    })
  })
}