@Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    isFromWeatherActivity = getIntent().getBooleanExtra("from_weather_activity", false);
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    if (prefs.getBoolean("city_selected", false) && !isFromWeatherActivity) {
      Intent intent = new Intent(this, WeatherActivity.class);
      startActivity(intent);
      finish();
      return;
    }
    setContentView(R.layout.choose_area);

    listView = (ListView) findViewById(R.id.list_view);
    titleText = (TextView) findViewById(R.id.title_text);
    adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, dataList);
    listView.setAdapter(adapter);
    terrificWeatherDB = TerrificWeatherDB.getInstance(this);
    listView.setOnItemClickListener(
        new AdapterView.OnItemClickListener() {
          @Override
          public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            if (currentLevel == LEVEL_PROVINCE) {
              selectedProvince = provinceList.get(position);
              queryCites();
            } else if (currentLevel == LEVEN_CITY) {
              selectedCity = cityList.get(position);
              queryCounties();
            } else if (currentLevel == LEVEL_COUNTY) {
              LogUtil.d("X_Cat", "ChooseAreaActivity-100 onCreate()");
              String countyCode = countyList.get(position).getCountyCode();
              Intent intent = new Intent(ChooseAreaActivity.this, WeatherActivity.class);
              intent.putExtra("county_code", countyCode);
              startActivity(intent);
              finish();
            }
          }
        });
    queryProvinces(); // 加载省级数据
  }