android中的自定义列表视图帮助

Question

您想要做的是从SD卡中获取音频歌曲并将其存储在自定义列表视图中以显示播放列表任何人都可以告诉我如何为此自定义列表视图编写适配器以下是我的代码请帮我解决这个问题。

class Mp3Filter implements FilenameFilter {
 public boolean accept(File dir, String name) {
    return (name.endsWith(".mp3"));
  }
 }




public class MpActivity extends Activity {
ListView ll;

  private static final String path= new String("/sdcard/music/");
  private List<String> songs = new ArrayList<String>();
 @Override
   public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
   setContentView(R.layout.main);
   ll=(ListView)findViewById(R.id.ll);
   ll.setEnabled(true);

 }




    public void playlist(){
File home = new File(path);
    if (home.listFiles( new Mp3Filter()).length > 0) {
    for (File file : home.listFiles( new Mp3Filter())) {
        songs.add(file.getName());
    }

    }
             //Error on this statement
             ll.setAdapter(new ArrayAdapter<T>(this, R.layout.main, songs));


  }




}

Answer 1

你试过了吗？

ll = new ArrayAdapter<String>(this,R.layout.main,songs);

lv =(ListView)findViewById(R.id.songs_list);

lv.setAdapter(ll);