Android SimpleAdapter适配器使用详解

public class SampleHolderAdapter extends HolderAdapter<Object> {
  //定义Item内部的点击事件，如果不需要可以不定义
  public static final int CLICK_ACTION_ADD = 1;
  public static final int CLICK_ACTION_UPDATE = 2;
  public static final int CLICK_ACTION_DELETE = 3;
  //构造函数配置数据源（可选，或者之后通过setData更新）
  public SampleHolderAdapter(List<Object> data) {
    super(data);
  }

  @Override
  public BaseViewHolder<?> createViewHolder(int position) {
    //创建期望的 ViewHolder
    return new ViewHolder();
  }

  class ViewHolder extends BaseViewHolder<Object> {
    Button btn1, btn2, btn3;

    @Override
    protected void onCreate(Context context, ViewGroup parent) {
      //ViewHolder创建后onCreate会被执行1次
      setContentView(R.layout.item_test);//setContent支持View或者layout id
      btn1 = (Button) findViewById(R.id.btn1);//findViewById
      btn2 = (Button) findViewById(R.id.btn2);
      btn3 = (Button) findViewById(R.id.btn3);
    }

    @Override
    protected void onDataChanged(int position, Object data) {
      //adapter getView的时候onDataChanged会被执行一次
      btn1.setText("add " + position);
      btn2.setText("update " + position);
      btn3.setText("delete " + position);
      //
      bindClick(btn1, position, CLICK_ACTION_ADD);//绑定ItemClick，每次都需bind
      bindClick(btn2, position, CLICK_ACTION_UPDATE);
      bindClick(btn3, position, CLICK_ACTION_DELETE);
    }
  }

}

 //数据源  
  private final ArrayList<Object> mData = new ArrayList<>();
  //创建Adapter并绑定数据源
  private final SampleHolderAdapter mAdapter = new SampleHolderAdapter(mData);

  @Override
  protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mListView = (ListView) findViewById(R.id.listview);
    //绑定Adapter
    mListView.setAdapter(mAdapter);
    //设置click listener（由于CommonAdapter支持，并通过bindClick声明）
    mAdapter.setOnItemClickListener(onItemClickListener);
  }

  //ClickListener实现
  private OnItemClickListener onItemClickListener = new OnItemClickListener() {
    @Override
    public void onItemClick(CommonAdapter<?> adapter, View v, int position, int action) {
      switch (action) {//action就是我们SampleHolderAdapte中定义并且bindClick的value
        case SampleHolderAdapter.CLICK_ACTION_ADD:
          toast(getContext(), position + " add click");
          break;
        case SampleHolderAdapter.CLICK_ACTION_UPDATE:
          toast(getContext(),position + " update click");
          break;
        case SampleHolderAdapter.CLICK_ACTION_DELETE:
          toast(getContext(), position + " delete click");
          break;
      }
    }
  };