HarmonyOS CustomDialog位置问题

@State iconButtonLocation:IconButtonLocation = new IconButtonLocation(0,0)  
vehicleControlMenuController: CustomDialogController = new CustomDialogController({  
    builder: VehicleControlMenu({  
      menuList: this.vehicleControlMenuList,  
      click: this.popVehicleControlItem.bind(this),  
    }),  
    customStyle: true,  
    isModal: true,  
    showInSubWindow: true,  
    offset: {dx:this.iconButtonLocation.locationX,dy:this.iconButtonLocation.locationY},  
  })