ArrayAdapter的getView执行有关问题

package com.test.activity;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.GridView;public class EasyTestActivity extends Activity {    /** Called when the activity is first created. */        @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                GridView gridView = (GridView)findViewById(R.id.GridView1);                CustomAdapter adapter = new CustomAdapter(this, android.R.layout.simple_expandable_list_item_1, new String[] {"1","2","3"});                gridView.setAdapter(adapter);    }        public class CustomAdapter extends ArrayAdapter<String> {        public CustomAdapter(Context context, int resource,                String[] objects) {            super(context, resource, objects);            // TODO Auto-generated constructor stub        }                @Override        public View getView(int position, View convertView, ViewGroup parent) {            if(convertView == null) {                convertView = super.getView(position, convertView, parent);                                //在这里输出是为第几条创建View和View的地址                Log.v(new String(),                       "View(" + String.valueOf(position) + ")" + " = " + convertView.toString());            }            return convertView;        }            }}