searchKeyword method
关键字搜索poi
在城市city
搜索关键字keyword
的poi
Implementation
static Future<List<Poi>> searchKeyword(String keyword, {String city = ''}) {
// 会在listener中关闭
// ignore: close_sinks
final _controller = StreamController<List<Poi>>(sync: true);
platform(
android: (pool) async {
// 创建查询对象
final query = await ObjectFactory_Android
.createcom_amap_api_services_poisearch_PoiSearch_Query__String__String__String(
keyword, '', city);
// 获取android上下文
final context = await ObjectFactory_Android.getandroid_app_Activity();
// 创建搜索对象
_androidPoiSearch = await ObjectFactory_Android
.createcom_amap_api_services_poisearch_PoiSearch__android_content_Context__com_amap_api_services_poisearch_PoiSearch_Query(
context, query);
// 设置回调
await _androidPoiSearch
.setOnPoiSearchListener(_AndroidSearchListener(_controller));
// 开始搜索
await _androidPoiSearch.searchPOIAsyn();
// 局部变量从HEAP中解除引用
pool..add(query)..add(context);
},
ios: (pool) async {
_iosSearch = await ObjectFactory_iOS.createAMapSearchAPI();
// 设置回调
await _iosSearch.set_delegate(_IOSSearchListener(_controller));
// 创建请求对象
final request =
await ObjectFactory_iOS.createAMapPOIKeywordsSearchRequest();
// 设置关键字
await request.set_keywords(keyword);
// 设置城市
await request.set_city(city);
// 开始搜索
await _iosSearch.AMapPOIKeywordsSearch(request);
// 局部变量从HEAP中解除引用
pool..add(request);
},
);
return _controller.stream.first;
}