InnerAudioContext.onTimeUpdate

解释：音频进度更新事件

方法参数

Function callback

示例 

在开发者工具中打开

图片示例

代码示例

<view class="wrap">
    <view class="card-area">
        <view class="description"> 
            正在播放《演员》
        </view> 
        <view class="description"> 
            {{currentTime}} / {{duration}}
        </view>
    </view>
</view>

Page({
    data: {
        currentTime: 0,
        duration: 0
    },
    onLoad() {
        const innerAudioContext = swan.createInnerAudioContext();
        innerAudioContext.src = 'https://b.bdstatic.com/miniapp/images/yanyuan.mp3';
        innerAudioContext.autoplay = false;
        this.innerAudioContext = innerAudioContext;
        this.innerAudioContext.play();
        this.innerAudioContext.onTimeUpdate(res => {
            this.setData('currentTime', res.data.currentTime);
            this.setData('duration', res.data.duration);
        });
    }
});