HarmonyOS 多个@Prop变化顺序问题

@Prop @Watch('stateChange') state: QuantityOfElectricityEnum  
@Prop progress: number  
stateChange() {  
  switch (this.state) {  
    case QuantityOfElectricityEnum.CHARGE:  
    case QuantityOfElectricityEnum.ERROR:  
      this.canvas.clearRect(2, 2.5, this.drawWidth, this.drawHeight);  
      break  
    case QuantityOfElectricityEnum.SHOW_BATTERY:  
      TinLog.e('--------------------drawProgress--------stateChange---------' + this.progress)  
      this.drawProgress()  
      break  
  }  
}

let bp = this.subscribe!!.bp  
this.charging = this.subscribe.bp > 100 ? 100 : bp  
if (bp == 238 || bp == 239 || (bp == 240 && bpError)) {  
  this.changingState = QuantityOfElectricityEnum.ERROR  
} else if (this.subscribe.wm == 2) {  
  this.changingState = QuantityOfElectricityEnum.CHARGE  
} else {  
  this.changingState = QuantityOfElectricityEnum.SHOW_BATTERY  
}

QuantityOfElectricity({ progress: this.charging, state: this.changingState })