pubspec.yaml

city_pickers插件地址
自己用的GetBuilder页面模板

cupertino_icons: ^1.0.8
# 省市区城市选择
city_pickers: ^1.3.0

编辑地址页面：controller

class AddressEditController extends GetxController {
	AddressEditController();
	
	Future<Result?> getResult (dynamic context) async {
	  // 省市区3级联动：底部弹窗
	  Result? result = await CityPickers.showCityPicker(
	    context: context,
	  );
	  print('result $result');
	
	  // 省市区3级联动：整页弹窗
	  // Result? result = await CityPickers.showFullPageCityPicker(
	  //   context: context,
	  // );
	
	  // 索引A-Z：城市选择
	  // Result? result = await CityPickers.showCitiesSelector(
	  //   context: context,
	  // );
	  return result;
	}
	...
	...
}

编辑地址页面：view

TDButton(
  text: '省市区选择',
  size: TDButtonSize.large,
  type: TDButtonType.fill,
  theme: TDButtonTheme.primary,
  isBlock: true,
  onTap: (){
  	// 弹出地区选择
    controller.getResult(context);
  },
),