实现效果：聊天中，有消息进入时声音提醒，主要运用audio标签。
注意：
①audio 标签src须静态值，若设置动态值，须audio对象 调用load()方法
②声音文件请用MP3格式，wav格式不兼容ios
③元素加载后，使用touchstart（h5）或 click（pc）事件初始化一次声音文件（play(), pause()）, 初始化后，后续可主动触发声音播放
④初始化事件中，pause()后须设置currentTime为音频最大时间数（我这里是1s）
⑤每次触发播放前须设置currentTime为0（ios使用fastSeek()方法设置，设置后须load()）
⑥播放完成后须设置currentTime为音频最大时间数（我这里是1s）, 可通过监听audio对象的onended事件设置
以下具体代码：
PlayNotifyVoice播放声音组件
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| <template>
<audio controls id="audioPlay_z" src="/file/notification.mp3"></audio>
</template>
<script>
export default {
name: 'PlayNotifyVoice',
data () {
return {
audioFile: '/file/notification.mp3'
}
},
computed: {
isiOS () {
return !!navigator.userAgent.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/) // ios
},
isSafari () {
const userAgent = navigator.userAgent
return userAgent.indexOf('Safari') > -1 && userAgent.indexOf('Chrome') === -1 && userAgent.indexOf('Edge') === -1 && userAgent.indexOf('OPR') === -1 // safari
}
},
beforeMount () {
if (this.isiOS) {
document.body.addEventListener('touchstart', this.init, false)
}
if (this.isSafari) {
document.body.addEventListener('click', this.init, false)
}
},
mounted () {
var audioEle = document.getElementById('audioPlay_z')
audioEle.addEventListener('ended', function (res) { // 暂停时会触发，当播放完一首歌曲时也会触发
if ('fastSeek' in audioEle) { // safari
audioEle.fastSeek(1) // 改变audio.currentTime的值
audioEle.load()
} else {
audioEle.currentTime = 1
}
})
},
methods: {
// 初始化
init () {
var audioEle = document.getElementById('audioPlay_z')
let playPromise = audioEle.play()
if (playPromise !== undefined) {
playPromise.then(() => {
audioEle.play()
audioEle.pause()
if ('fastSeek' in audioEle) { // safari
audioEle.fastSeek(1) // 改变audio.currentTime的值
} else {
audioEle.currentTime = 1
}
}).catch(() => {
console.log('play failed')
})
}
document.body.removeEventListener('touchstart', this.init, false)
document.body.removeEventListener('click', this.init, false)
},
// 播放消息提示音
playNotifyVoice () {
if (!!window.ActiveXObject || 'ActiveXObject' in window) { // IE内核浏览器
// eslint-disable-next-line
var OSPlayer = new ActiveXObject('WMPLayer.OCX')
OSPlayer.url = this.audioFile
OSPlayer.controls.play()
} else {
console.log('playNotifyVoice')
var audioEle = document.getElementById('audioPlay_z')
let playPromise = audioEle.play()
if (playPromise !== undefined) {
playPromise.then(() => {
if ('fastSeek' in audioEle) { // safari
audioEle.fastSeek(0) // 改变audio.currentTime的值
audioEle.load()
} else {
audioEle.currentTime = 0
}
audioEle.play()
}).catch(() => {
console.log('play failed')
})
}
}
}
}
}
</script>
<style lang="less" scoped>
#audioPlay_z {
display: none;
}
</style>
|
