//application中初始化
CityPicker.getInstance().init(this);

 CityPickerDialog cityPickerDialog = CityPicker.getInstance().buildCityPickerDialog(MainActivity.this);
 //cityPickerDialog.setCheckedData("北京市",
 //                     "市辖区",
 //                   "东城区",
 //                 "朝阳门街道");
 cityPickerDialog.setCheckedData("河南省",
                        "郑州市",
                        null,
                        null);
   cityPickerDialog.setCityPickerListener(new CityPickView.CityPickerListener() {
            @Override
            public void cancel() {
                //点击取消
            }

            @Override
            public void confirm(Province province, City city, District district, Street street) {
              //选择完毕 点击确认
               Log.d("//Province",province==null?"NotSelect":province.getName());
               Log.d("//City",city==null?"NotSelect":city.getName());
               Log.d("//District",district==null?"NotSelect": district.getName());
               Log.d("//Street",street==null?"NotSelect":street.getName());
            }
        });
        cityPickerDialog.show();