HarmonyOS 用Image显示了网络图片，可以拿到Image组件用的图片的PixelMap吗

需要先下载网络图片再获取PixelMap，参考示例如下：

@State image: PixelMap | undefined = undefined;
httpRequest() {
  http.createHttp().request(
    "https://xxx",
    (error: BusinessError, data: http.HttpResponse) => {
      if (error) {
        console.error(`http reqeust failed with. Code: ${error.code}, message: ${error.message}`);
      } else {
        console.error('http reqeust success.');
        let imageData: ArrayBuffer = data.result as ArrayBuffer;
        let imageSource: image.ImageSource = image.createImageSource(imageData);
        console.error(`http reqeust size = ${imageData.byteLength}`);

        class tmp {
          height: number = 100
          width: number = 100
        }

        let options: Record<string, number | boolean | tmp> = {
          'alphaType': 0, // 透明度
          'editable': false, // 是否可编辑
          'pixelFormat': 3, // 像素格式
          'scaleMode': 1, // 缩略值
          'size': { height: 100, width: 100 }
        } // 创建图片大小
        imageSource.createPixelMap(options).then((pixelMap: PixelMap) => {
          this.image = pixelMap
        })
      }
    }
  )
}

build() {
  Column() {
    Button("获取网络图片")
      .onClick(() => {
        this.httpRequest()
      })
    Image(this.image)
      .height(200).width(200)
  }.width('100%').height('100%')
}