样式四（仿京东样式）

仿京东样式代码用法

JDCityPicker cityPicker = new JDCityPicker();
JDCityConfig jdCityConfig = new JDCityConfig.Builder().build();

        jdCityConfig.setShowType(JDCityConfig.ShowType.PRO_CITY_DIS);
        cityPicker.init(this);
        cityPicker.setConfig(jdCityConfig);
        cityPicker.setOnCityItemClickListener(new OnCityItemClickListener() {
            @Override
            public void onSelected(ProvinceBean province, CityBean city, DistrictBean district) {
                resultV.setText("城市选择结果：\n" + province.getName() + "(" + province.getId() + ")\n"
                        + city.getName() + "(" + city.getId() + ")\n"
                        + district.getName() + "(" + district.getId() + ")");
            }

            @Override
            public void onCancel() {
            }
        });
cityPicker.showCityPicker();