我遇到了这个问题。我在互联网上搜索过，但答案是针对 Java，而不是 Kotlin。我该如何解决这个问题？如果您还需要什么，请告诉我。我正在尝试获取最近的餐厅以获取用户位置。目前我正在使用静态变量，因为我还无法获得 Zomato APi。我怎么能做到这一点？开始学习kotlin已经4-5天了
我的餐厅数据类
data class Restaurant(
@SerializedName("name")
val restName: String?,
@SerializedName("address")
val restAddress: String?
)
我的 API 接口
interface ZomatoAPI {
@Headers(
"Accept: application/json",
"user-key: $API_KEY"
)
@GET("/search")
fun getRestaurants(@Query("count") count: Int
,@Query("lat") latitude: Double
,@Query("lon") longitude: Double
,@Query("sort") sort : String
,@Query("order") order : String
): Single<List<Restaurant>>
}
我的服务等级
class RestaurantService{
private val baseUrl = "https://developers.zomato.com/api/v2.1/"
private val api: ZomatoAPI
private val latitude = 41.2
private val longitude = 28.2
init {
api = Retrofit.Builder()
.baseUrl(baseUrl)
.addConverterFactory(GsonConverterFactory.create(GsonBuilder().setLenient().create()))
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.build()
.create(ZomatoAPI::class.java)
}
fun getRestaurants(): Single<List<Restaurant>>{
return api.getRestaurants(5,latitude,longitude,"rating","desc")
}
}
我的列表视图模型
class ListViewModel: ViewModel(){
private val restaurantService = RestaurantService()
private val disposable = CompositeDisposable()
val restaurants = MutableLiveData<List<Restaurant>>()
val restaurantLoadError = MutableLiveData<Boolean>()
val loading = MutableLiveData<Boolean>()
fun refresh() {
fetchRestaurants()
}
private fun fetchRestaurants() {
loading.value = true
restaurantService.getRestaurants()
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(object: DisposableSingleObserver<List<Restaurant>>(){
override fun onSuccess(value: List<Restaurant>?) {
restaurants.value = value
restaurantLoadError.value = false
loading.value = false
}
override fun onError(e: Throwable?) {
restaurantLoadError.value = true
loading.value = false
}
})
}
override fun onCleared() {
super.onCleared()
disposable.clear()
}
}
Zomato API 的响应体
{
"results_found": 1499579,
"results_start": 0,
"results_shown": 2,
"restaurants": [
{
"restaurant": {
"R": {
"has_menu_status": {
"delivery": -1,
"takeaway": -1
},
"res_id": 18047914,
"is_grocery_store": false
},
"apikey": "61528551ffc800703d600cb2c25e6900",
"id": "18047914",
"name": "The Mossy Cafe",
"url": "https://www.zomato.com/mossy-point-nsw/the-mossy-cafe-mossy-point?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1",
"location": {
"address": "31 Pacific Street, Mossy Point",
"locality": "Mossy Point",
"city": "Mossy Point",
"city_id": 2181,
"latitude": "-35.8369730000",
"longitude": "150.1796610000",
"zipcode": "",
"country_id": 14,
"locality_verbose": "Mossy Point, Mossy Point"
},
"switch_to_order_menu": 0,
"cuisines": "Cafe Food, Coffee and Tea",
"timings": "7:30am – 3pm (Mon-Sun)",
"average_cost_for_two": 50,
"price_range": 4,
"currency": "$",
"highlights": [
"Cash",
"Debit Card",
"No Alcohol Available",
"Credit Card",
"Breakfast",
"Lunch",
"Kid Friendly",
"Vegan Options",
"Pet Friendly",
"Indoor Seating",
"Gluten Free Options"
],
"offers": [],
"opentable_support": 0,
"is_zomato_book_res": 0,
"mezzo_provider": "OTHER",
"is_book_form_web_view": 0,
"book_form_web_view_url": "",
"book_again_url": "",
"thumb": "",
"user_rating": {
"aggregate_rating": "3.9",
"rating_text": "Good",
"rating_color": "9ACD32",
"rating_obj": {
"title": {
"text": "3.9"
},
"bg_color": {
"type": "lime",
"tint": "600"
}
},
"votes": 7
},
"all_reviews_count": 0,
"photos_url": "https://www.zomato.com/mossy-point-nsw/the-mossy-cafe-mossy-point/photos?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1#tabtop",
"photo_count": 42,
"menu_url": "https://www.zomato.com/mossy-point-nsw/the-mossy-cafe-mossy-point/menu?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1&openSwipeBox=menu&showMinimal=1#tabtop",
"featured_image": "",
"has_online_delivery": 0,
"is_delivering_now": 0,
"store_type": "",
"include_bogo_offers": true,
"deeplink": "zomato://restaurant/18047914",
"is_table_reservation_supported": 0,
"has_table_booking": 0,
"events_url": "https://www.zomato.com/mossy-point-nsw/the-mossy-cafe-mossy-point/events#tabtop?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1",
"phone_numbers": "02 4471 8599",
"all_reviews": {
"reviews": []
},
"establishment": [
"Café"
],
"establishment_types": []
}
},
{
"restaurant": {
"R": {
"has_menu_status": {
"delivery": -1,
"takeaway": -1
},
"res_id": 16611721,
"is_grocery_store": false
},
"apikey": "61528551ffc800703d600cb2c25e6900",
"id": "16611721",
"name": "Blue Swimmer at Seahaven",
"url": "https://www.zomato.com/gerroa-nsw/blue-swimmer-at-seahaven-gerroa?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1",
"location": {
"address": "19 Riverleigh Ave, Gerroa, Gerroa",
"locality": "Gerroa",
"city": "Gerroa",
"city_id": 2154,
"latitude": "-34.7697390000",
"longitude": "150.8117400000",
"zipcode": "2534",
"country_id": 14,
"locality_verbose": "Gerroa, Gerroa"
},
"switch_to_order_menu": 0,
"cuisines": "Modern Australian, Australian",
"timings": "7 AM to 3 PM (Mon, Tue, Wed, Thu, Sun), 7 AM to 3 PM, 5:30 PM to 11 PM (Fri-Sat)",
"average_cost_for_two": 20,
"price_range": 2,
"currency": "$",
"highlights": [
"Cash",
"Breakfast",
"Lunch",
"No Alcohol Available",
"Dinner",
"Table booking recommended",
"Outdoor Seating"
],
"offers": [],
"opentable_support": 0,
"is_zomato_book_res": 0,
"mezzo_provider": "OTHER",
"is_book_form_web_view": 0,
"book_form_web_view_url": "",
"book_again_url": "",
"thumb": "",
"user_rating": {
"aggregate_rating": "3.9",
"rating_text": "Good",
"rating_color": "9ACD32",
"rating_obj": {
"title": {
"text": "3.9"
},
"bg_color": {
"type": "lime",
"tint": "600"
}
},
"votes": 21
},
"all_reviews_count": 11,
"photos_url": "https://www.zomato.com/gerroa-nsw/blue-swimmer-at-seahaven-gerroa/photos?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1#tabtop",
"photo_count": 15,
"menu_url": "https://www.zomato.com/gerroa-nsw/blue-swimmer-at-seahaven-gerroa/menu?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1&openSwipeBox=menu&showMinimal=1#tabtop",
"featured_image": "",
"has_online_delivery": 0,
"is_delivering_now": 0,
"store_type": "",
"include_bogo_offers": true,
"deeplink": "zomato://restaurant/16611721",
"is_table_reservation_supported": 0,
"has_table_booking": 0,
"events_url": "https://www.zomato.com/gerroa-nsw/blue-swimmer-at-seahaven-gerroa/events#tabtop?utm_source=api_basic_user&utm_medium=api&utm_campaign=v2.1",
"phone_numbers": "(02) 4234 3796",
"all_reviews": {
"reviews": [
{
"review": []
},
{
"review": []
},
{
"review": []
},
{
"review": []
},
{
"review": []
}
]
},
"establishment": [
"Casual Dining"
],
"establishment_types": []
}
}
]
}