HarmonyOS 图片文件写入成功，但在Image中不显示

图片文件写入成功，但在Image中不显示

Image(this.scrollImageFile) //不显示

  private clickShare(context: CommonUIContext, fileUri: string) {
    SnapshotHelper.loadPixelMap('centerScroll', (_error, pixels) => {
      FileHelper.writeToImageFile(fileUri, pixels, () => {
        this.shareBySystem(context, fileUri)
        this.scrollImageFile = fileUri
      })
    })
  }

Scenario:

import fs, { WriteOptions } from '@ohos.file.fs';
import { ImageHelper } from './ImageHelper';
import { BusinessError } from '@kit.BasicServicesKit';
import { TAG } from '../retrofit/HttpHelper';

export class FileHelper {

  static writeToImageFile(filePath: string, imagePixels: PixelMap, callback: () => void) {
    const width = 100
    const height = 100
    const buff = ImageHelper.readPixelsToBuffer(imagePixels, width, height)

    let stream = fs.createStreamSync(filePath, 'w')
    // let writeOption: WriteOptions = {
    //   offset: 0,
    //   length: buff.byteLength,
    //   encoding: 'utf-8'  //WriteOptions只支持utf-8
    // }

    stream.write(buff, (err: BusinessError, bytesWritten: number) => {
      if (err) {
        console.error(TAG, "FileHelper,write stream failed with error message: " + err.message + ", error code: " + err.code)
      } else {
        if (bytesWritten) {
          console.info(TAG, "FileHelper,write succeed and size is:" + bytesWritten);
          stream.close()
        }
      }

      if (callback) {
        callback()
      }
    })
  }
}