Question

<?xml version="1.0" encoding="utf-8"?>
<!-- generator="FeedCreator 1.7.2"-->
<rss version="2.0">
  <strings>
    <level>one</level>
  </strings>
  <item>
    <contentitem>
      <title>Song 1</title>
      <view>Song 1</view>
      <english>Song1.mp3</english>
    </contentitem>
  </item>
  <item>
    <contentitem>
      <title>Song 2</title>
      <view>Song 2</view>
      <english>song2.mp3</english>
    </contentitem>
  </item>
  <item>
    <contentitem>
      <title>Song 3</title>
      <view>Song 3</view>
      <english>song3.png</english>
      <spanish>song3.png</spanish>
    </contentitem>
  </item>
  <item>
    <contentitem>
      <title>Song 4</title>
      <view>Song 4</view>
      <english>song4.mp3</english>
      <spanish>song4.mp3</spanish>
    </contentitem>
  </item>
</rss>

上面是我的XML文件我只是想用这个XML文件播放音乐假设我正在访问第0块应用程序播放song1.mp3如果我正在访问第1块应用程序播放song2.mp3等等...我麦芽汁像这样的功能......

android.view.View.OnClickListener spanish = new android.view.View.OnClickListener() {
    public void onClick(View v) {
        MediaPlayer m = MediaPlayer.create(Formulae.this, R.drawable.song1.mp3);
        m.start();
    }
};

上面的代码是静态的，我如何根据选定的块使其动态化（R.drawable.song1.mp3）......事情来自XML。请帮帮我谢谢。

Answer 1

只是为了给你一个想法

android.view.View.OnClickListener spanish = new android.view.View.OnClickListener() {
    MediaPlayer mediaPlayer;

    public void onClick(View v) {
        // we want to create the mediaPlayer Instance
        // just once
        if(mediaPlayer==null)
            mediaPlayer = new MediaPlayer();

        // try getting the new Title that should be played
        String pathToNewTitle = getPathFromClickedViewItem(v);
        // stop current Song
        mediaPlayer.stop();
        try {
            mediaPlayer.setDataSource();
        } catch (IllegalArgumentException e1) {
            // implement this yourself
        } catch (IOException e2) {
            // implement this yourself
        }
        mediaPlayer.start();
    }

    private String getPathFromClickedViewItem(View v)  {
        String path;

        // you have to implement this yourself
        // the idea is to determine the path 
        // for the mp3 that should be played
        // when a specific view item is clicked

        return path;
    }
};

在Android上播放音频视频 - ＆gt; http://developer.android.com/guide/topics/media/index.html

在android上阅读xml文件 - ＆gt; http://developer.android.com/reference/org/xml/sax/package-summary.html

因为你知道你的建议使用xpath - ＆gt; http://developer.android.com/reference/javax/xml/xpath/package-summary.html

如果你不知道怎么放这个，你应该先学习oo编程和java！

如何在我的Android应用程序中使用XML播放歌曲？

1 个答案: