@Preview
@Component
export struct LoadingView {
  @Link isLoading: boolean

  @Builder
  doNothingBuilder() {
  }

  @BuilderParam customBuilderParam: () => void = this.doNothingBuilder

  build() {
    Stack() {
      this.customBuilderParam()
      Column() {
        LoadingProgress()
          .color(Color.White)
          .width(80).height(80)
        Text('努力加载中..')
          .fontSize(16)
          .fontColor(Color.White)
      }
      .visibility(this.isLoading ? Visibility.Visible : Visibility.None)
      .width('100%')
      .height('100%')
      .backgroundColor('#40000000')
      .justifyContent(FlexAlign.Center)
    }
  }
}