SPO2

创建传感器

const spo2 = hmSensor.createSensor(hmSensor.id.SPO2)

spo2 实例

spo2: object

属性	说明	类型
current	血氧测量值	number
time	结果产生时间，UTC 秒	number
retcode	结果返回码	number
hourAvgofDay	返回以小时计平均血氧数据，长度 24	Array<number>

retcode 值	说明
0	测量无效
1	继续测量
2	测量成功
3	测量失败
4	没有佩戴
5	测量超时
6	无效佩戴
7	信号无效
8	血氧值偏低
9	血氧值偏高
10	测量无效

start

启动血氧测量

spo2.start()

信息

建议在调用 start 方法前调用 stop 来停止上一次测量

stop

取消血氧测量

spo2.stop()

注册传感器实例回调事件

calorie.addEventListener(event, callback: Callback)

CHANGE 事件

event 值

hmSensor.event.CHANGE

Callback

() => void

完整示例

class TextByLine {
  constructor(params) {
    const { text = '', y = undefined, line = 0 } = params

    this.text = text
    this.y = y
    this.line = line
    this.y_computed = Number.isInteger(this.y) ? this.y : px(this.line * 60 + 120)
  }

  render() {
    return hmUI.createWidget(hmUI.widget.TEXT, {
      x: px(0),
      y: this.y_computed,
      w: px(480),
      h: px(46),
      color: 0xffffff,
      text_size: px(20),
      align_h: hmUI.align.CENTER_H,
      align_v: hmUI.align.CENTER_V,
      text_style: hmUI.text_style.NONE,
      text: this.text
    })
  }
}

Page({
  build() {
    const spo2 = hmSensor.createSensor(hmSensor.id.SPO2)

    new TextByLine({
      text: `current:${spo2.current};time:${spo2.time};retcode:${spo2.retcode}`,
      line: 0
    }).render()

    const changeEventText = new TextByLine({
      text: `EVENT-CHANGE:${spo2.current}`,
      line: 1
    }).render()

    const changeCallback = () => {
      const current = spo2.current
      const time = spo2.time
      const retcode = spo2.retcode

      changeEventText.setProperty(hmUI.prop.MORE, {
        text: `EVENT-CHANGE: ${current};${time};${retcode}`
      })
    }

    const spo2ChangeListener = () => {
      spo2.addEventListener(hmSensor.event.CHANGE, changeCallback)
    }

    hmUI.createWidget(hmUI.widget.BUTTON, {
      x: px(80),
      y: px(300),
      w: px(300),
      h: px(60),
      radius: px(12),
      normal_color: 0xfc6950,
      press_color: 0xfeb4a8,
      text: 'REGISTER_CHANGE',
      click_func: spo2ChangeListener
    })

    hmUI.createWidget(hmUI.widget.BUTTON, {
      x: px(80),
      y: px(380),
      w: px(300),
      h: px(60),
      radius: px(12),
      normal_color: 0xfc6950,
      press_color: 0xfeb4a8,
      text: 'START',
      click_func: () => {
        spo2.stop()
        spo2.start()
      }
    })

    const hourAvgOfDay = spo2.hourAvgOfDay

    for (let i = 0; i < hourAvgOfDay.length; i++) {
      new TextByLine({
        text: `index:${i};${hourAvgOfDay[i]}`,
        line: 8 + i
      }).render()
    }
  }
})