MUSIC

控制手表使用扬声器播放音乐

创建传感器

const music = hmSensor.createSensor(hmSensor.id.MUSIC)

警告

部分设备没有扬声器，如果创建传感器报错，则说明设备不支持

music 实例

music: object

属性	说明	类型
artist	艺术家名称	string
title	音乐名称	string
isPlaying	播放状态 true: 播放中、false: 未播放	boolean

music.audInit()

初始化音乐控制

类型

() => void

music.audPlay()

播放

类型

() => void

music.audPause()

暂停

类型

() => void

music.audPrev()

上一首

类型

() => void

music.audNext()

下一首

类型

() => void

注册传感器实例回调事件

music.addEventListener(event, callback: Callback)

CHANGE 事件

event 值

hmSensor.event.CHANGE

Callback

() => void

事件示例

music.addEventListener(hmSensor.event.CHANGE, function () {
  console.log("The current song's name: " + music.title + '\r\n')
})

完整代码示例

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 music = hmSensor.createSensor(hmSensor.id.MUSIC)

    music.audInit()

    const { title, artist, isPlaying } = music

    const infoText = new TextByLine({
      text: `title:${title};artist:${artist};isPlaying:${isPlaying}`,
      line: 0
    }).render()

    music.addEventListener(hmSensor.event.CHANGE, function () {
      const { title, artist, isPlaying } = music

      infoText.setProperty(hmUI.prop.MORE, {
        text: `title:${title};artist:${artist};isPlaying:${isPlaying}`,
      })
    })

    hmUI.createWidget(hmUI.widget.BUTTON, {
      x: px(80),
      y: px(240),
      w: px(300),
      h: px(60),
      radius: px(12),
      normal_color: 0xfc6950,
      press_color: 0xfeb4a8,
      text: 'PLAY',
      click_func: () => {
        music.audPlay()
      }
    })

    hmUI.createWidget(hmUI.widget.BUTTON, {
      x: px(80),
      y: px(320),
      w: px(300),
      h: px(60),
      radius: px(12),
      normal_color: 0xfc6950,
      press_color: 0xfeb4a8,
      text: 'PAUSE',
      click_func: () => {
        music.audPause()
      }
    })

    hmUI.createWidget(hmUI.widget.BUTTON, {
      x: px(80),
      y: px(400),
      w: px(300),
      h: px(60),
      radius: px(12),
      normal_color: 0xfc6950,
      press_color: 0xfeb4a8,
      text: 'PREV',
      click_func: () => {
        music.audPrev()
      }
    })

    hmUI.createWidget(hmUI.widget.BUTTON, {
      x: px(80),
      y: px(480),
      w: px(300),
      h: px(60),
      radius: px(12),
      normal_color: 0xfc6950,
      press_color: 0xfeb4a8,
      text: 'NEXT',
      click_func: () => {
        music.audNext()
      }
    })
  }
})