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<!doctype html>
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<title>Media | Auto.js 3.0.0 文档</title>
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<h1>Auto.js 3.0.0 文档</h1>
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<a href="index.html" name="toc">索引</a> |
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<div id="toc">
<h2>目录</h2>
<ul>
<li><span class="stability_2"><a href="#media_media">Media</a></span><ul>
<li><span class="stability_undefined"><a href="#media_media_scanfile_path">media.scanFile(path)</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_playmusic_path_volume_looping">media.playMusic(path[, volume, looping])</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_musicseekto_msec">media.musicSeekTo(msec)</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_pausemusic">media.pauseMusic()</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_resumemusic">media.resumeMusic()</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_stopmusic">media.stopMusic()</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_ismusicplaying">media.isMusicPlaying()</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_getmusicduration">media.getMusicDuration()</a></span></li>
<li><span class="stability_undefined"><a href="#media_media_getmusiccurrentposition">media.getMusicCurrentPosition()</a></span></li>
</ul>
</li>
</ul>
</div>
<div id="apicontent">
<h1>Media<span><a class="mark" href="#media_media" id="media_media">#</a></span></h1>
<div class="api_stability api_stability_2"><a href="documentation.html#documentation_stability_index">Stability: 2</a> - Stable</div><p>media模块提供多媒体编程的支持。目前仅支持音乐播放和媒体文件扫描。后续会结合UI加入视频播放等功能。</p>
<p>需要注意是，使用该模块播放音乐时是在后台异步播放的，在脚本结束后会自动结束播放，因此可能需要插入诸如<code>sleep()</code>的语句来使脚本保持运行。例如：</p>
<pre><code>//播放音乐
media.playMusic(&quot;/sdcard/1.mp3&quot;);
//让音乐播放完
sleep(media.getMusicDuration());
</code></pre><h2>media.scanFile(path)<span><a class="mark" href="#media_media_scanfile_path" id="media_media_scanfile_path">#</a></span></h2>
<div class="signature"><ul>
<li><code>path</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type">&lt;string&gt;</a> 媒体文件路径</li>
</ul>
</div><p>扫描路径path的媒体文件，将它加入媒体库中；或者如果该文件以及被删除，则通知媒体库移除该文件。</p>
<p>媒体库包括相册、音乐库等，因此该函数可以用于把某个图片文件加入相册。</p>
<pre><code>//请求截图
requestScreenCapture(false);
//截图
var im = captureScreen();
var path = &quot;/sdcard/screenshot.png&quot;;
//保存图片
im.saveTo(path);
//把图片加入相册
media.scanFile(path);
</code></pre><h2>media.playMusic(path[, volume, looping])<span><a class="mark" href="#media_media_playmusic_path_volume_looping" id="media_media_playmusic_path_volume_looping">#</a></span></h2>
<div class="signature"><ul>
<li><code>path</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type">&lt;string&gt;</a> 音乐文件路径</li>
<li><code>volume</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type" class="type">&lt;number&gt;</a> 播放音量，为0~1的浮点数，默认为1</li>
<li><code>looping</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type" class="type">&lt;boolean&gt;</a> 是否循环播放，如果looping为<code>true</code>则循环播放，默认为<code>false</code></li>
</ul>
</div><p>播放音乐文件path。该函数不会显示任何音乐播放界面。如果文件不存在或者文件不是受支持的音乐格式，则抛出<code>UncheckedIOException</code>异常。</p>
<pre><code>//播放音乐
media.playMusic(&quot;/sdcard/1.mp3&quot;);
//让音乐播放完
sleep(media.getMusicDuration());
</code></pre><p>如果要循环播放音乐，则使用looping参数：</p>
<pre><code>
</code></pre><p>//传递第三个参数为true以循环播放音乐
media.playMusic(&quot;/sdcard/1.mp3&quot;, 1, true);
//等待三次播放的时间
sleep(media.getMusicDuration() * 3);</p>
<pre><code>
</code></pre><p>如果要使用音乐播放器播放音乐，调用<code>app.viewFile(path)</code>函数。</p>
<h2>media.musicSeekTo(msec)<span><a class="mark" href="#media_media_musicseekto_msec" id="media_media_musicseekto_msec">#</a></span></h2>
<div class="signature"><ul>
<li><code>msec</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type" class="type">&lt;number&gt;</a> 毫秒数，表示音乐进度</li>
</ul>
</div><p>把当前播放进度调整到时间msec的位置。如果当前没有在播放音乐，则调用函数没有任何效果。</p>
<p>例如，要把音乐调到1分钟的位置，为<code>media.musicSeekTo(60 * 1000)</code>。</p>
<pre><code>//播放音乐
media.playMusic(&quot;/sdcard/1.mp3&quot;);
//调整到30秒的位置
media.musicSeekTo(30 * 1000);
//等待音乐播放完成
sleep(media.getMusicDuration() - 30 * 1000);
</code></pre><h2>media.pauseMusic()<span><a class="mark" href="#media_media_pausemusic" id="media_media_pausemusic">#</a></span></h2>
<p>暂停音乐播放。如果当前没有在播放音乐，则调用函数没有任何效果。</p>
<h2>media.resumeMusic()<span><a class="mark" href="#media_media_resumemusic" id="media_media_resumemusic">#</a></span></h2>
<p>继续音乐播放。如果当前没有播放过音乐，则调用该函数没有任何效果。</p>
<h2>media.stopMusic()<span><a class="mark" href="#media_media_stopmusic" id="media_media_stopmusic">#</a></span></h2>
<p>停止音乐播放。如果当前没有在播放音乐，则调用函数没有任何效果。</p>
<h2>media.isMusicPlaying()<span><a class="mark" href="#media_media_ismusicplaying" id="media_media_ismusicplaying">#</a></span></h2>
<div class="signature"><ul>
<li>返回 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type" class="type">&lt;boolean&gt;</a></li>
</ul>
</div><p>返回当前是否正在播放音乐。</p>
<h2>media.getMusicDuration()<span><a class="mark" href="#media_media_getmusicduration" id="media_media_getmusicduration">#</a></span></h2>
<div class="signature"><ul>
<li>返回 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type" class="type">&lt;number&gt;</a></li>
</ul>
</div><p>返回当前音乐的时长。单位毫秒。</p>
<h2>media.getMusicCurrentPosition()<span><a class="mark" href="#media_media_getmusiccurrentposition" id="media_media_getmusiccurrentposition">#</a></span></h2>
<div class="signature"><ul>
<li>返回 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type" class="type">&lt;number&gt;</a></li>
</ul>
</div><p>返回当前音乐的播放进度(已经播放的时间)，单位毫秒。</p>
</div>
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