Preview是否支持读取rawfile文件

import util from '@ohos.util'

@Entry
@Component
struct Test {
  @State message: string = 'Hello World'

  aboutToAppear() {
    getContext(this)?.resourceManager.getRawFileContent("testFile").then((data) => {
      this.message = util.TextDecoder.create().decodeWithStream(data)
    })
  }

  build() {
    Row() {
      Column() {
        Text(this.message)
      }
      .width('100%')
    }
    .height('100%')
  }
}