转：Adapter 从源头开始适配！

   1: /**

   2:  * 歌曲列表适配器

   3:  * 

   4:  * @version 2010-11-24 下午05:13:33

   5:  * @author Hal

   6:  */

   7: public class AudioListAdapter extends BaseAdapter {

   8:  

   9:     private Context mContext;

  10:  

  11:     // 歌曲集合

  12:     private ArrayList<Audio> mAudios;

  13:  

  14:     public AudioListAdapter(Context mContext, ArrayList<Audio> mAudios) {

  15:         this.mContext = mContext;

  16:         this.mAudios = mAudios;

  17:     }

  18:  

  19:     @Override

  20:     public int getCount() {

  21:         return mAudios != null ? mAudios.size() : 0;

  22:     }

  23:  

  24:     @Override

  25:     public Object getItem(int position) {

  26:         if ((mAudios != null && mAudios.size() > 0) && (position >= 0 && position < mAudios.size())) {

  27:             return mAudios.get(position);

  28:         }

  29:         return null;

  30:     }

  31:  

  32:     /**

  33:      * 如果集合中的对象数据来自数据库，建议此方法返回该对象在数据库中的ID

  34:      */

  35:     @Override

  36:     public long getItemId(int position) {

  37:         if ((mAudios != null && mAudios.size() > 0) && (position >= 0 && position < mAudios.size())) {

  38:             return mAudios.get(position).getId();

  39:         }

  40:         return position;

  41:     }

  42:  

  43:     @Override

  44:     public View getView(int position, View convertView, ViewGroup parent) {

  45:         //TODO 返回自定的View

  46:     }