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GIF

Cet article s’applique aux intégrations qui utilisent les fragments ou les vues de carte de contenu par défaut du SDK Braze pour afficher les cartes de contenu.

Integrating a custom image library

Step 1: Creating the image loader delegate

The Image Loader delegate must implement the following methods:

The integration example below is taken from the Glide integration sample app included with the Braze Android SDK.

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public class GlideBrazeImageLoader implements IBrazeImageLoader {
  private static final String TAG = GlideBrazeImageLoader.class.getName();

  private RequestOptions mRequestOptions = new RequestOptions();

  @Override
  public void renderUrlIntoCardView(Context context, Card card, String imageUrl, ImageView imageView, BrazeViewBounds viewBounds) {
    renderUrlIntoView(context, imageUrl, imageView, viewBounds);
  }

  @Override
  public void renderUrlIntoInAppMessageView(Context context, IInAppMessage inAppMessage, String imageUrl, ImageView imageView, BrazeViewBounds viewBounds) {
    renderUrlIntoView(context, imageUrl, imageView, viewBounds);
  }

  @Override
  public Bitmap getPushBitmapFromUrl(Context context, Bundle extras, String imageUrl, BrazeViewBounds viewBounds) {
    return getBitmapFromUrl(context, imageUrl, viewBounds);
  }

  @Override
  public Bitmap getInAppMessageBitmapFromUrl(Context context, IInAppMessage inAppMessage, String imageUrl, BrazeViewBounds viewBounds) {
    return getBitmapFromUrl(context, imageUrl, viewBounds);
  }

  private void renderUrlIntoView(Context context, String imageUrl, ImageView imageView, BrazeViewBounds viewBounds) {
    Glide.with(context)
        .load(imageUrl)
        .apply(mRequestOptions)
        .into(imageView);
  }

  private Bitmap getBitmapFromUrl(Context context, String imageUrl, BrazeViewBounds viewBounds) {
    try {
      return Glide.with(context)
          .asBitmap()
          .apply(mRequestOptions)
          .load(imageUrl).submit().get();
    } catch (Exception e) {
      Log.e(TAG, "Failed to retrieve bitmap at url: " + imageUrl, e);
    }
    return null;
  }

  @Override
  public void setOffline(boolean isOffline) {
    // If the loader is offline, then we should only be retrieving from the cache
    mRequestOptions = mRequestOptions.onlyRetrieveFromCache(isOffline);
  }
}

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class GlideBrazeImageLoader : IBrazeImageLoader {
  companion object {
    private val TAG = GlideBrazeImageLoader::class.qualifiedName
  }

  private var mRequestOptions = RequestOptions()

  override fun renderUrlIntoCardView(context: Context, card: Card, imageUrl: String, imageView: ImageView, viewBounds: BrazeViewBounds) {
    renderUrlIntoView(context, imageUrl, imageView, viewBounds)
  }

  override fun renderUrlIntoInAppMessageView(context: Context, inAppMessage: IInAppMessage, imageUrl: String, imageView: ImageView, viewBounds: BrazeViewBounds) {
    renderUrlIntoView(context, imageUrl, imageView, viewBounds)
  }

  override fun getPushBitmapFromUrl(context: Context, extras: Bundle, imageUrl: String, viewBounds: BrazeViewBounds): Bitmap? {
    return getBitmapFromUrl(context, imageUrl, viewBounds)
  }

  override fun getInAppMessageBitmapFromUrl(context: Context, inAppMessage: IInAppMessage, imageUrl: String, viewBounds: BrazeViewBounds): Bitmap? {
    return getBitmapFromUrl(context, imageUrl, viewBounds)
  }

  private fun renderUrlIntoView(context: Context, imageUrl: String, imageView: ImageView, viewBounds: BrazeViewBounds) {
    Glide.with(context)
        .load(imageUrl)
        .apply(mRequestOptions)
        .into(imageView)
  }

  private fun getBitmapFromUrl(context: Context, imageUrl: String, viewBounds: BrazeViewBounds): Bitmap? {
    try {
      return Glide.with(context)
          .asBitmap()
          .apply(mRequestOptions)
          .load(imageUrl).submit().get()
    } catch (e: Exception) {
      Log.e(TAG, "Failed to retrieve bitmap at url: $imageUrl", e)
    }

    return null
  }

  override fun setOffline(isOffline: Boolean) {
    // If the loader is offline, then we should only be retrieving from the cache
    mRequestOptions = mRequestOptions.onlyRetrieveFromCache(isOffline)
  }
}

Step 2: Setting the image loader delegate

The Braze SDK will use any custom image loader set with setBrazeImageLoader. We recommend setting the custom image loader in a custom application subclass:

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public class GlideIntegrationApplication extends Application {
  @Override
  public void onCreate() {
    super.onCreate();
    Braze.getInstance(context).setBrazeImageLoader(new GlideBrazeImageLoader());
  }
}

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class GlideIntegrationApplication : Application() {
  override fun onCreate() {
    super.onCreate()
    Braze.getInstance(context).appboyImageLoader = GlideBrazeImageLoader()
  }
}

Custom Image Loading with Jetpack Compose

To override image loading with Jetpack Compose, you can pass in a value to imageComposable. This function will take a Card and render the image and the modifiers needed. Alternatively, you can use customCardComposer of ContentCardsList to render the entire card.

In the following example, Glide’s Compose library is used for the cards listed in the imageComposable function:

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ContentCardsList(
    cardStyle = ContentCardStyling(
        imageComposable = { card ->
            when (card.cardType) {
                CardType.CAPTIONED_IMAGE -> {
                    val captionedImageCard = card as CaptionedImageCard
                    GlideImage(
                        modifier = Modifier
                            .fillMaxWidth()
                            .wrapContentHeight()
                            .run {
                                if (captionedImageCard.aspectRatio > 0) {
                                    aspectRatio(captionedImageCard.aspectRatio)
                                } else {
                                    this
                                }
                            },
                        contentScale = ContentScale.Crop,
                        model = captionedImageCard.url,
                        loading = placeholder(R.drawable.pushpin),
                        contentDescription = ""
                    )
                }
                CardType.IMAGE -> {
                    val imageOnlyCard = card as ImageOnlyCard
                    GlideImage(
                        modifier = Modifier
                            .fillMaxWidth()
                            .run {
                                if (imageOnlyCard.aspectRatio > 0) {
                                    aspectRatio(imageOnlyCard.aspectRatio)
                                } else {
                                    this
                                }
                            },
                        contentScale = ContentScale.Crop,
                        model = imageOnlyCard.url,
                        loading = placeholder(R.drawable.pushpin),
                        contentDescription = ""
                    )
                }
                CardType.SHORT_NEWS -> {
                    val shortNews = card as ShortNewsCard
                    GlideImage(
                        modifier = Modifier
                            .width(100.dp)
                            .height(100.dp),
                        model = shortNews.url,
                        loading = placeholder(R.drawable.pushpin),
                        contentDescription = ""
                    )
                }
                else -> Unit
            }
        }
    )
)
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