java - 在 Java 中使用 map API 时陷入反向地理编码

Question

所以我在尝试查找坐标的 RegionCode/State 时遇到了这个问题。我(假设)已经从 map API 正确地实现了反向地理编码。但是现在我被困在对数据做一些实际的事情上。我的代码是

 String API_KEY = "AIzaSyABXoV5ktBurLqodVntX6ImhNHOjDBgciQ";

 GeoApiContext apiContext = new GeoApiContext.Builder()
   .apiKey(API_KEY)
   .build();

 LatLng test = new LatLng( -8.96238,-40.68703);
 GeocodingApiRequest geocodingApi = GmapsController.reverseGeocode(apiContext, test);

现在我有了这个 geocodingApiRequest 我的问题是我将如何接收 RegionCode 字符串甚至地址 JSON

Answer 1

鉴于 API 规范，我希望以下两个能够工作，具体取决于您是否需要同步:

GeocodingResult[] results = geocodingApi.await();
for (GeocodingResult result: results) {
  String address = result.formattedAddress;
  // use it or check other fields on `result`
}

或异步行为

class FutureCompletingCallback implements PendingResult.Callback<GeocodingResult[]> {
    final CompletableFuture<GeocodingResult[]> resultsFuture;

    FutureCompletingCallback(CompletableFuture<GeocodingResult[]> resultsFuture) {
         this.resultsFuture = resultsFuture;
    }

    public void onResult(GeocodingResult[] results) {
        resultsFuture.complete(results);
    }

    public void onFailure(Throwable t) {
        resultsFuture.compleExceptionally(t);
    }
}

CompletableFuture<GeocodingResult[]> resultsFuture = new CompletableFuture<>();
geocodingApi.setCallback(new FutureCompletingCallback(resultsFuture));
// collect result synchronously
GeocodingResult[] results = resultsFuture.get()
// OR act asynchronously
resultsFuture.whenComplete(...some action...);