需求：显示音乐播放按钮、可手动拖拽进度条；页面中含多个音乐，播放当前音乐时暂停其他音乐播放。
小程序自带标签 audio
小程序自带的audio标签含固定的样式，且有最小尺寸。目前项目也不含name和author字段，所以放弃audio标签。
实现效果图
初始化音乐数据
<text>{{currentProcess}}</text>
<slider bindchange="" bindtouchstart="" bindtouchend="" max="{{totalProcessNum}}" min="0" value="{{currentProcessNum}}" disabled="{{canSlider}}"></slider>
<text>{{totalProcess}}</text>
<image src="/UploadFiles/2021-04-02/{{audioListObj['q'+questionObj.id].imgUrl}}">
点击播放按钮触发事件
说明：
"htmlcode">
const _this = this;
const _data = _this.data;
//防止用户点击播放按钮太快
if (_data.clickPlayAudioFunctionIsRuning){
return ;
}
_this.setData({
clickPlayAudioFunctionIsRuning: true
})
var _obj = _this.data.audioListObj;
const audioId = $this.currentTarget.dataset.audioid;
var backgroundAudioManager = wx.getBackgroundAudioManager();
if (_this.data.audioListObj[audioId].imgUrl == '../../images/play.png'){
console.log('转换至播放状态')
//切换所有播放按钮为暂停状态
for (var j in _this.data.audioListObj) {
if (j && _this.data.audioListObj[j]) {
_this.data.audioListObj[j].imgUrl = '../../images/play.png';
}
}
_this.setData({
audioListObj: _this.data.audioListObj,
})
//暂停正在播放音乐
wx.stopBackgroundAudio();
_obj[audioId].imgUrl = '../../images/paused.png';
backgroundAudioManager.title = '测试';
//设置音乐开始时间
if (_this.data.audioListObj[audioId].currentProcessNum != 0){
backgroundAudioManager.startTime = _this.data.audioListObj[audioId].currentProcessNum;
}
backgroundAudioManager.src = _this.data.audioListObj[audioId].src;
_obj[audioId].canSlider = true;
backgroundAudioManager.play();
// 背景音频自然播放结束事件
backgroundAudioManager.onEnded(function () {
var _obj = _this.data.audioListObj;
_obj[audioId].imgUrl = '../../images/play.png';
_obj[audioId].currentProcess = 0;
_obj[audioId].currentProcessNum = 0;
_this.setData({
audioListObj: _obj
})
})
//背景音频播放进度更新事件
backgroundAudioManager.onTimeUpdate(function (callback) {
_obj = _this.data.audioListObj;
//设置总时长
if (_obj[audioId] && _obj[audioId].totalProcess && (_obj[audioId].totalProcess == '--:--' || _obj[audioId].totalProcess == '00:00')) {
console.log(_this.formatTime(backgroundAudioManager.duration))
_obj[audioId].totalProcess = _this.formatTime(backgroundAudioManager.duration);
_obj[audioId].totalProcessNum = backgroundAudioManager.duration;
_this.setData({
audioListObj: _obj
})
}
if (!_this.data.isMovingSlider) {
//更新进度
_obj[audioId].currentProcess = _this.formatTime(backgroundAudioManager.currentTime);
_obj[audioId].currentProcessNum = backgroundAudioManager.currentTime;
_this.setData({
audioListObj: _obj
})
}
})
} else if (_this.data.audioListObj[audioId].imgUrl == '../../images/paused.png'){
console.log('转换至暂停状态')
_obj[audioId].imgUrl = '../../images/play.png'
wx.pauseBackgroundAudio();
backgroundAudioManager.pause();
}
_this.setData({
audioListObj: _obj,
clickPlayAudioFunctionIsRuning: false
})
滑动进度条触发事件
const _this = this;
const _data = _this.data;
const _obj = _this.data.audioListObj;
const position = $this.detail.value;
const audioId = $this.currentTarget.dataset.audioid;
var backgroundAudioManager = app.globalData.bgAudioListManager;
_obj[audioId].currentProcess = _this.formatTime(position);
_obj[audioId].currentProcessNum = position;
//如果正在播放
if (_obj[audioId].imgUrl == '../../images/paused.png'){
_obj[audioId].seek = position;
if (_obj[audioId].seek != -1) {
wx.seekBackgroundAudio({
position: Math.floor(position),
})
_obj[audioId].seek = -1;
}
}
_this.setData({
audioListObj: _obj
})
开始滑动触发事件
this.setData({
isMovingSlider: true
});
结束滑动触发事件
this.setData({
isMovingSlider: false
});
总结
以上所述是小编给大家介绍的微信小程序自定义音乐进度条的实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！