Android 앱에서 Google Play 서비스로 구동되는 API에 액세스하려면 API 클라이언트 객체를 사용해야 합니다. 이러한 객체는 Google Play 서비스에 대한 연결을 처리하고, 연결이 가능할 때 요청을 대기열에 추가하고 순서대로 실행합니다. API 클라이언트는 구성하는 데 비용이 많이 들지 않으므로 필요에 따라 새로 만들 수 있습니다.
승인이 필요하지 않은 서비스에 액세스하려면 서비스의 클라이언트 객체 인스턴스를 만들고 Context 또는 Activity 객체를 전달합니다. 필요한 경우 API 호출이 실행되기 전에 사용자에게 Google Play 서비스를 업그레이드하라는 메시지가 표시됩니다.
다음 코드 스니펫은 Fused Location Provider를 사용하여 기기의 마지막으로 알려진 위치를 가져오는 방법을 보여줍니다.
Kotlin
// Code required for requesting location permissions omitted for brevity.valclient=LocationServices.getFusedLocationProviderClient(this)// Get the last known location. In some rare situations, this can be null.client.lastLocation.addOnSuccessListener{location:Location? -> location?.let{// Logic to handle location object.}}
자바
// Code required for requesting location permissions omitted for brevity.FusedLocationProviderClientclient=LocationServices.getFusedLocationProviderClient(this);// Get the last known location. In some rare situations, this can be null.client.getLastLocation().addOnSuccessListener(this,location->{if(location!=null){// Logic to handle location object.}});
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["필요한 정보가 없음","missingTheInformationINeed","thumb-down"],["너무 복잡함/단계 수가 너무 많음","tooComplicatedTooManySteps","thumb-down"],["오래됨","outOfDate","thumb-down"],["번역 문제","translationIssue","thumb-down"],["샘플/코드 문제","samplesCodeIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-08-17(UTC)"],[[["\u003cp\u003eTo use Google Play services APIs, create API client objects which manage the connection and queue requests when offline.\u003c/p\u003e\n"],["\u003cp\u003eAccess services without authorization by obtaining the client object using the current \u003ccode\u003eContext\u003c/code\u003e or \u003ccode\u003eActivity\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eAccess services requiring authorization by signing in the user, requesting necessary permissions, and then getting the client object.\u003c/p\u003e\n"],["\u003cp\u003eCheck for API availability using \u003ccode\u003echeckApiAvailability()\u003c/code\u003e if you need to disable features when an API is unavailable, although API calls will fail gracefully if the API isn't present.\u003c/p\u003e\n"]]],["To use Google Play services APIs, create an API client object, which manages the connection and queues requests. For services not requiring authorization, obtain the client instance using `Context` or `Activity`; for example, the Fused Location Provider client. For services requiring authorization, sign the user in, request necessary permissions, and then get the client using `GoogleSignInAccount`. For example, the Fit API client to get the daily steps. Before making API calls check with `checkApiAvailability()`.\n"],null,["To access\n[APIs powered by Google Play services](/android/guides/setup#list-dependencies)\nin your Android app, you need to use API client objects. These objects handle\nthe connection to Google Play services, queueing requests and executing them in\norder when a connection is available. You can create new API clients as needed,\nas they are inexpensive to construct.\n\nGet started\n\nBefore you begin, make sure to\n[set up Google Play services](/android/guides/setup) in your app project.\n| **Warning:** APIs using [`GoogleApiClient`](/android/reference/com/google/android/gms/common/api/GoogleApiClient) are deprecated. If you are still using `GoogleApiClient`, migrate to the corresponding `GoogleApi`-based APIs by updating to the latest available SDK versions.\n\nTo access a service that doesn't require authorization, create an instance of\nthe service's client object, passing either a\n[`Context`](https://developer.android.com/reference/android/content/Context) or\nan [`Activity`](https://developer.android.com/reference/android/app/Activity)\nobject. If necessary, users are prompted to upgrade Google Play services before\nany API calls are executed.\n\nThe following code snippet shows how to get the device's last known location\nusing the Fused Location Provider: \n\nKotlin \n\n```kotlin\n// Code required for https://developer.android.com/training/location/permissions omitted for brevity.\nval client = LocationServices.getFusedLocationProviderClient(this)\n\n// Get the last known location. In some rare situations, this can be null.\nclient.lastLocation.addOnSuccessListener { location : Location? -\u003e\n location?.let {\n // Logic to handle location object.\n }\n}\n```\n\nJava \n\n```java\n// Code required for https://developer.android.com/training/location/permissions omitted for brevity.\nFusedLocationProviderClient client =\n LocationServices.getFusedLocationProviderClient(this);\n\n// Get the last known location. In some rare situations, this can be null.\nclient.getLastLocation()\n .addOnSuccessListener(this, location -\u003e {\n if (location != null) {\n // Logic to handle location object.\n }\n });\n```\n\nTo access APIs that require user authorization, follow the guide to\n[authorize access to Google user data](https://developer.android.com/identity/authorization).\nIf you are using an API that requires a `GoogleSignInAccount` object, use the\n[`AuthorizationResult#toGoogleSignInAccount()`](/android/reference/com/google/android/gms/auth/api/identity/AuthorizationResult#toGoogleSignInAccount())\nmethod.\n\nCheck for API availability\n\nBefore enabling a feature that depends on a Google Play services API, check if\nthe API is available on the device by calling\n[`checkApiAvailability()`](/android/reference/com/google/android/gms/common/GoogleApiAvailability#checkApiAvailability(com.google.android.gms.common.api.HasApiKey%3C?%3E,%20com.google.android.gms.common.api.HasApiKey%3C?%3E...)).\n| **Note:** This check is only needed if you need to disable a feature when an API is unavailable. You can also call API methods without this check, as they will fail if the API is unavailable.\n\nThe following code snippet shows how to check if the fused location provider is\navailable: \n\nKotlin \n\n```kotlin\nfun getLastLocationIfApiAvailable(context: Context?): Task\u003cLocation\u003e? {\n val client = getFusedLocationProviderClient(context)\n return GoogleApiAvailability.getInstance()\n .checkApiAvailability(client)\n .onSuccessTask { _ -\u003e client.lastLocation }\n .addOnFailureListener { _ -\u003e Log.d(TAG, \"Location unavailable.\")}\n}\n```\n\nJava \n\n```java\npublic Task\u003cLocation\u003e getLastLocationIfApiAvailable(Context context) {\n FusedLocationProviderClient client =\n getFusedLocationProviderClient(context);\n return GoogleApiAvailability.getInstance()\n .checkApiAvailability(client)\n .onSuccessTask(unused -\u003e client.getLastLocation())\n .addOnFailureListener(e -\u003e Log.d(TAG, \"Location unavailable.\"));\n}\n```"]]
