onItemClick de访问级别问题

Question

public class ChooseAreaActivity extends Activity {
public static final int LEVEL_PROVINCE = 0;
public static final int LEVEL_CITY = 1;
public static final int LEVEL_COUNTY = 2;
......
private List provinceList;
private List cityList;
private List countyList;
private Province selectedProvince;
private City selectedCity;
/**
* 当前选中的级别
*/
private int currentLevel;

@Override
protected void onCreate(Bundle saveInstanceState) {
    super.onCreate(saveInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.choose_area);
    .......
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View view, int index, long arg3) {
            if (currentLevel == LEVEL_PROVINCE) {
                selectedProvince = provinceList.get(index);
                queryCities();
            } else if (currentLevel == LEVEL_CITY) {
                selectedCity = cityList.get(index);
                queryCounties();
            }
        }
    });
    queryProvinces();//加载省级数据
}

以上代码我是按照书上敲的，其中有一点我不理解：类中的3个常量 LEVEL_PROVINCE,LEVEL_CITY,LEVEL_COUNTY,如何在点击一个ListVIew的item的时候知道我是在点击省级别、市级别或是县级别的item？_在onItemClick方法中有判断语句if（currentlevel ==..),这个currentlevel是哪里确定的？

Answer 1

从这里无法得知currentLevel 是怎么给的值。没有看到赋值的地方，你可以找找currentLevel 哪赋的值。