BindingAdapter.java

import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

/** An implementation of {@link BaseAdapter} which uses the new/bind pattern for its views. */
public abstract class BindingAdapter extends BaseAdapter {
  @Override public final View getView(int position, View convertView, ViewGroup parent) {
    int type = getItemViewType(position);
    if (convertView == null) {
      convertView = newView(type, parent);
    }
    bindView(position, type, convertView);
    return convertView;
  }
  
  /** Create a new instance of a view for the specified {@code type}. */
  public abstract View newView(int type, ViewGroup parent);
  
  /** Bind the data for the specified {@code position} to the {@code view}. */
  public abstract void bindView(int position, int type, View view);
}