HarmonyOS 自定义绘制接口怎么使用

我们使用自定义绘制相关的框架：

import drawing from “@ohos.graphics.drawing”

import common2D from ‘@ohos.graphics.common2D’

在文档上看到有关于图片的绘制方法，但是调用一直失败不知道哪里有问题(绘制图形，文字都可以正常只是现在绘制图片的接口一直异常)，使用代码如下：

import { NodeController, FrameNode, RenderNode, Size } from "@ohos.arkui.node"
import drawing from "@ohos.graphics.drawing"
import common2D from '@ohos.graphics.common2D'
import componentSnapshot from '@ohos.arkui.componentSnapshot';
import image from '@ohos.multimedia.image';
import resourceManager from '@ohos.resourceManager';
import hilog from '@ohos.hilog';


class ImageRenderNode extends RenderNode {

  async draw(context: DrawContext) {
    try {
      const canvas = context.canvas;

      const image1_rawFileDescriptor = getContext().resourceManager.getRawFdSync('1.jpeg')
      const imageSource: image.ImageSource = image.createImageSource(image1_rawFileDescriptor);
      const imagePixelMap = await imageSource.createPixelMap()
      const tmp =await imagePixelMap.getImageInfo()
      canvas.drawImage(imagePixelMap, 0, 0)
    } catch (e) {
      console.log('')
    }

  }
}

class ImageNodeController extends NodeController {
  private rootNode: FrameNode | null = null;
  rootRenderNode: RenderNode | null = null;
  width: number = 0;
  height: number = 0;

  makeNode(uiContext: UIContext): FrameNode {
    this.rootNode = new FrameNode(uiContext);
    if (this.rootNode !== null) {
      this.rootRenderNode = this.rootNode.getRenderNode();
    }
    return this.rootNode;
  }

  aboutToResize(size: Size): void {
    if (this.rootNode) {
      this.width = size.width
      this.height = size.height
      if (this.rootRenderNode) {
        this.rootRenderNode.frame = {
          x: 0,
          y: 0,
          width: this.width,
          height: this.height
        };
        const tmp = new ImageRenderNode()
        tmp.backgroundColor = 0XFFFFF000;
        tmp.frame = {
          x: 0,
          y: 0,
          width: this.width,
          height: this.height
        };
        this.rootRenderNode.appendChild(tmp)

      }
    }
  }
}


@Entry
@Component
struct Page2 {
  private imageNodeController: ImageNodeController = new ImageNodeController()

  build() {

    Column() {
      NodeContainer(this.imageNodeController)
        .width('100%')
        .height('60%')
    }
    .backgroundColor(Color.Gray)
    .height('100%')
    .width('100%')
  }
}