searchBusStation method
获取公交信息
Implementation
static Future<BusStation> searchBusStation({
@required String stationName,
@required String city,
}) async {
// 会在listener中关闭
// ignore: close_sinks
final _controller = StreamController<BusStation>(sync: true);
platform(
android: (pool) async {
// 创建请求对象
final query = await ObjectFactory_Android
.createcom_amap_api_services_busline_BusStationQuery__String__String(
stationName,
city,
);
// 获取android上下文
final context = await ObjectFactory_Android.getandroid_app_Activity();
// 创建搜索对象
_androidBusStationSearch = await ObjectFactory_Android
.createcom_amap_api_services_busline_BusStationSearch__android_content_Context__com_amap_api_services_busline_BusStationQuery(
context,
query,
);
// 设置回调
await _androidBusStationSearch
.setOnBusStationSearchListener(_AndroidSearchListener(_controller));
// 开始搜索
await _androidBusStationSearch.searchBusStationAsyn();
// 局部变量从HEAP中解除引用
pool..add(query);
},
ios: (pool) async {
_iosSearch = await ObjectFactory_iOS.createAMapSearchAPI();
// 设置回调
await _iosSearch.set_delegate(_IOSSearchListener(_controller));
// 创建搜索请求
final request =
await ObjectFactory_iOS.createAMapBusStopSearchRequest();
// 设置站点名称
await request.set_keywords(stationName);
// 设置所在城市
await request.set_city(city);
// 开始搜索
await _iosSearch.AMapBusStopSearch(request);
// 局部变量从HEAP中解除引用
pool..add(request);
},
);
return _controller.stream.first;
}