HEART

Creating Sensors

const heart = hmSensor.createSensor(hmSensor.id.HEART)

console.log(heart.last)

HEART instance

heart: object

Properties	Description	Type
last	The most recent heart rate measurement. Automatic device heart rate monitoring updates the last value, and registering a CURRENT event to enable continuous heart rate measurement also updates the last value	number
current	The value of the most recent continuous measurement. Registering the CURRENT event to enable continuous heart rate measurement will update this current value at a certain frequency. There is no point in getting the current value if continuous measurement is not enabled	number
today	The current day's heart rate in minutes from 0:00 to the current moment, returning an array of js up to 60*24	Array<number>

Registering sensor instance callback events

battery.addEventListener(event, callback: Callback)

The heart rate sensor is special, if it uses event callbacks, it is recommended to use removeEventListener to unregister it in the onDestroy life cycle of the page.

CURRENT event

The value of event

heart.event.CURRENT

Callback

() => void

The example of events

const hrCurrentListener = function () {
  console.log(heart.current)
}

heart.addEventListener(heart.event.CURRENT, hrCurrentListener)

LAST event

The value of event

heart.event.LAST

Callback

() => void

The example of events

const hrLastListener = function () {
  console.log(heart.last)
}

heart.addEventListener(heart.event.LAST, hrLastListener)

Code Example

An example of a complete heart rate measurement.

Page({
  build() {
    const heart = hmSensor.createSensor(hmSensor.id.HEART)

    const current = heart.current
    const last = heart.last

    const text = hmUI.createWidget(hmUI.widget.TEXT, {
      x: px(0),
      y: px(120),
      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: `CURRENT: ${current}; LAST: ${last}`
    })

    text.addEventListener(hmUI.event.CLICK_DOWN, (info) => {
      const current = heart.current
      const last = heart.last

      text.setProperty(hmUI.prop.MORE, {
        text: `CURRENT: ${current}; LAST: ${last}`
      })
    })

    const currentText = hmUI.createWidget(hmUI.widget.TEXT, {
      x: px(0),
      y: px(180),
      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: `EVENT-CURRENT: `
    })

    const lastText = hmUI.createWidget(hmUI.widget.TEXT, {
      x: px(0),
      y: px(240),
      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: `EVENT-LAST: `
    })

    const currCallback = () => {
      const current = heart.current

      currentText.setProperty(hmUI.prop.MORE, {
        text: `EVENT-CURRENT: ${current}`
      })
    }

    const heartRateCurrListener = () => {
      heart.addEventListener(heart.event.CURRENT, currCallback)
    }

    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_CURRENT',
      click_func: heartRateCurrListener
    })

    const lastCallback = () => {
      const last = heart.last

      lastText.setProperty(hmUI.prop.MORE, {
        text: `EVENT-LAST: ${last}`
      })
    }

    const heartRateLastListener = () => {
      heart.addEventListener(heart.event.LAST, lastCallback)
    }

    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: 'REGISTER_LAST',
      click_func: heartRateLastListener
    })
  }
})