自定义弹窗，如何查看当前弹窗的dialogcontroller的状态时open还是close

setWaitPanel(Status:string,delay:string){ 
  if(Status === '1'){ 
    const delayNum = delay?parseInt(delay):0 
    setTimeout(()=>{ 
      this.controller.waitingDialogController?.open() 
    },delayNum) 
  }else{ 
    this.controller.waitingDialogController?.close() 
  } 
}
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