A city picker of china, 中国城市选择器
CityResult result = await showCityPicker(context); String province = result?.province; // 省 String city = result?.city; // 市 String county = result?.county; // 地级市/县
init pick city
CityResult result = await showCityPicker(context, initCity: CityResult() ..province = p1 // 省 ..city = p2 // 市 ..county = p3); // 地级市/县
使用 json,数据来源为 python 爬虫爬取python_get_city_datas
真实数据来源国家统计局城乡划分 2018 版
copyright apache 2.0 for caijinglong
更新城市数据到 2018 版
更新 sdk 版本约束
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