HarmonyOS 使用image展示pixelMap无法展示图片 ，但有确切的值

import { image } from '@kit.ImageKit'  
import { BusinessError } from '@ohos.base'  
import { fileUri } from '@kit.CoreFileKit'  
import fs from '@ohos.file.fs';  
@Entry  
@Component  
struct IR240524155935058 {  
  imageUrl: string | null = null  
  @State imagePixelMap: image.PixelMap | null = null  
  @State imagePath: string | null = null  
  build() {  
    Column() {  
      if (true) {  
        Image(this.imagePixelMap)  
          .objectFit(ImageFit.Fill)  
          .width('100%')  
          .height('100%')  
          .onError((msg) => {  
            console.log('---图片加载失败', JSON.stringify(msg))  
          })  
          .onComplete((msg) => {  
            console.log('---图片加载成功', JSON.stringify(msg))  
          })  
      }  
    }  
  }  
  aboutToAppear(): void {  
    this.createImagePixelMap()  
  }  
  private async createImagePixelMap() {  
    if (true) {  
      const context: Context = getContext(this);  
      let imagePath: string = getContext().filesDir + '/img.jpg'  
      if (imagePath.length === 0) {  
        return  
      }  
      let imageSource: image.ImageSource = image.createImageSource(imagePath)  
      let decodingOptions: image.DecodingOptions = {  
        editable: true,  
        desiredPixelFormat: 3,  
      }  
      // 创建pixelMap  
      imageSource.createPixelMap(decodingOptions).then((pixelMap: image.PixelMap) => {  
        console.log("Succeeded in creating PixelMap")  
        this.imagePixelMap = pixelMap  
      }).catch((err: BusinessError) => {  
        console.error("Failed to create PixelMap")  
      });  
    }  
  }  
}
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