abp-zero-spinner.ts

this.showMainSpinner(this.l('Uploading'));
this.hideMainSpinner();

// -- or --

private ngxSpinnerTextService: NgxSpinnerTextService;

constructor(
  injector: Injector,
  private _spinnerService: NgxSpinnerService)
{
  this.ngxSpinnerTextService = injector.get(NgxSpinnerTextService)
}

this.ngxSpinnerTextService.setText(spinnerTexts.processingStep);
this._spinnerService.show();

this.ngxSpinnerTextService.setText(spinnerTexts.default);
this._spinnerService.hide();