地點相片

透過集合功能整理內容 你可以依據偏好儲存及分類內容。

您可以使用 Places SDK for Android 要求在應用程式中顯示的地點相片。相片服務傳回的相片來自各種來源,包括業主和使用者提供的相片。如要擷取地點的圖片,請按照下列步驟操作:

  1. 擷取 Place 物件 (使用 fetchPlace()findCurrentPlace())。請務必在要求中加入 PHOTO_METADATAS 欄位。
  2. FetchPlaceRequestOnSuccessListener 中新增 FetchPhotoRequest,並視需要指定高度和寬度上限 (以像素為單位)。相片的寬度或高度上限為 1600 像素。
  3. 新增 OnSuccessListener 並從 FetchPhotoResponse 取得點陣圖。

取得地點相片

以下範例說明如何取得地點相片。

Java


// Define a Place ID.
final String placeId = "INSERT_PLACE_ID_HERE";

// Specify fields. Requests for photos must always have the PHOTO_METADATAS field.
final List<Place.Field> fields = Collections.singletonList(Place.Field.PHOTO_METADATAS);

// Get a Place object (this example uses fetchPlace(), but you can also use findCurrentPlace())
final FetchPlaceRequest placeRequest = FetchPlaceRequest.newInstance(placeId, fields);

placesClient.fetchPlace(placeRequest).addOnSuccessListener((response) -> {
    final Place place = response.getPlace();

    // Get the photo metadata.
    final List<PhotoMetadata> metadata = place.getPhotoMetadatas();
    if (metadata == null || metadata.isEmpty()) {
        Log.w(TAG, "No photo metadata.");
        return;
    }
    final PhotoMetadata photoMetadata = metadata.get(0);

    // Get the attribution text.
    final String attributions = photoMetadata.getAttributions();

    // Create a FetchPhotoRequest.
    final FetchPhotoRequest photoRequest = FetchPhotoRequest.builder(photoMetadata)
        .setMaxWidth(500) // Optional.
        .setMaxHeight(300) // Optional.
        .build();
    placesClient.fetchPhoto(photoRequest).addOnSuccessListener((fetchPhotoResponse) -> {
        Bitmap bitmap = fetchPhotoResponse.getBitmap();
        imageView.setImageBitmap(bitmap);
    }).addOnFailureListener((exception) -> {
        if (exception instanceof ApiException) {
            final ApiException apiException = (ApiException) exception;
            Log.e(TAG, "Place not found: " + exception.getMessage());
            final int statusCode = apiException.getStatusCode();
            // TODO: Handle error with given status code.
        }
    });
});

      

Kotlin


// Define a Place ID.
val placeId = "INSERT_PLACE_ID_HERE"

// Specify fields. Requests for photos must always have the PHOTO_METADATAS field.
val fields = listOf(Place.Field.PHOTO_METADATAS)

// Get a Place object (this example uses fetchPlace(), but you can also use findCurrentPlace())
val placeRequest = FetchPlaceRequest.newInstance(placeId, fields)

placesClient.fetchPlace(placeRequest)
    .addOnSuccessListener { response: FetchPlaceResponse ->
        val place = response.place

        // Get the photo metadata.
        val metada = place.photoMetadatas
        if (metada == null || metada.isEmpty()) {
            Log.w(TAG, "No photo metadata.")
            return@addOnSuccessListener
        }
        val photoMetadata = metada.first()

        // Get the attribution text.
        val attributions = photoMetadata?.attributions

        // Create a FetchPhotoRequest.
        val photoRequest = FetchPhotoRequest.builder(photoMetadata)
            .setMaxWidth(500) // Optional.
            .setMaxHeight(300) // Optional.
            .build()
        placesClient.fetchPhoto(photoRequest)
            .addOnSuccessListener { fetchPhotoResponse: FetchPhotoResponse ->
                val bitmap = fetchPhotoResponse.bitmap
                imageView.setImageBitmap(bitmap)
            }.addOnFailureListener { exception: Exception ->
                if (exception is ApiException) {
                    Log.e(TAG, "Place not found: " + exception.message)
                    val statusCode = exception.statusCode
                    TODO("Handle error with given status code.")
                }
            }
    }

      

歸因

在多數情況下,地點相片可以在不附加屬性的情況下使用,或在圖片中納入必要的作者資訊。不過,如果傳回的 PhotoMetadata 執行個體包含歸因,您必須在顯示圖片的任何位置,在應用程式中加入額外的出處。詳情請參閱「顯示歸因」一文。

用量與計費

針對向 fetchPhoto() 發出的呼叫,系統會視為「Places Photo」SKU 來計費。詳情請參閱用量與帳單頁面。