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);    }  }}