class="app-voice-you" voiceSrc="xx.mp3">
class="app-voice-headimg" src="xx.png" />
style="width: 60%" class="app-voice-state-bg">
class="app-voice-state app-voice-pause">
class="app-voice-time app-voice-unread">
1'6"
id="audio_my" src="">
Your browser does not support the audio tag.
核心功能就是语音播放，主要包括了以下几个功能点：
红点表明未听语音，语音听过后，红点会消失
将“未读”状态的样式独立出来，“已读”的时候，把样式删除就行。结合本地存储处理就搞定了。
//this是点击的语音的document
var app_voice_time = this.getElementsByClassName("app-voice-time")[0]
if(app_voice_time.className.indexOf("app-voice-unread") != -1){
//存在红点时，把红点样式删除
app_voice_time.className = app_voice_time.className.replace("app-voice-unread","")
}
第一次听语音，会自动播放下一段语音
这里主要是使用HTML5的audio控件的“语音播放完”事件
语音播放完，找到下一个语音，播放下一个语音
//语音播放完事件(PAGE.audio是audio控件的document)
PAGE.audio.addEventListener('ended', function () {
//循环获取下一个节点
PAGE.preVoice = PAGE.currentVoice
var currentVoice = PAGE.currentVoice
while(true){
currentVoice = currentVoice.nextElementSibling//下一个兄弟节点
//已经到达最底部
if(!currentVoice){
PAGE.preVoice.getElementsByClassName("app-voice-state")[0].className = "app-voice-state app-voice-pause"
return false
}
var voiceSrc = currentVoice.getAttribute("voiceSrc")
if(voiceSrc &&voiceSrc != ""){
break
}
}
if(!PAGE.autoNextVoice){
PAGE.preVoice.getElementsByClassName("app-voice-state")[0].className = "app-voice-state app-voice-pause"
return false
}
PAGE.currentVoice = currentVoice
//获取得到下一个语音节点，播放
PAGE.audio.src = voiceSrc
PAGE.audio.play()
PAGE.Event_PlayVoice()
}, false)
每段语音可以暂停、继续播放、重新播放
这个比较简单，但是也是比较多逻辑。需要变换样式告诉用户，怎样是继续播放/重新播放。
播放中的语音有动画，不是播放中的语音则会停止动画。
这里主要是CSS3动画的应用
.app-voice-pause,.app-voice-play{
height: 18px
background-repeat: no-repeat
background-image: url(../img/voice.png)
background-size: 18px auto
opacity: 0.5
}
.app-voice-you .app-voice-pause{
/*从未播放*/
background-position: 0px -39px
}
.app-voice-you .app-voice-play{
/*播放中（不需要过渡动画）*/
background-position: 0px -39px
-webkit-animation: voiceplay 1s infinite step-start
-moz-animation: voiceplay 1s infinite step-start
-o-animation: voiceplay 1s infinite step-start
animation: voiceplay 1s infinite step-start
}
@-webkit-keyframes voiceplay {
0%,
100% {
background-position: 0px -39px
}
33.333333% {
background-position: 0px -0px
}
66.666666% {
background-position: 0px -19.7px
}
}
