Come Affresco detto:
Se la tua richiesta alla pipeline è per un'immagine decodificata - una bitmap Android, è possibile usufruire della nostra BaseBitmapDataSubscriber più facile da usare:
dataSource.subscribe(new BaseBitmapDataSubscriber() {
@Override
public void onNewResultImpl(@Nullable Bitmap bitmap) {
// You can use the bitmap in only limited ways
// No need to do any cleanup.
}
@Override
public void onFailureImpl(DataSource dataSource) {
// No cleanup required here.
}
},
executor);
Puoi non assegnare la bitmap a nessuna variabile non inclusa nell'ambito del metodo onNewResultImpl.
http://frescolib.org/docs/datasources-datasubscribers.html#_
Il mio codice:
public void setDataSubscriber(Context context, Uri uri, int width, int height){
DataSubscriber dataSubscriber = new BaseDataSubscriber<CloseableReference<CloseableBitmap>>() {
@Override
public void onNewResultImpl(
DataSource<CloseableReference<CloseableBitmap>> dataSource) {
if (!dataSource.isFinished()) {
return;
}
CloseableReference<CloseableBitmap> imageReference = dataSource.getResult();
if (imageReference != null) {
final CloseableReference<CloseableBitmap> closeableReference = imageReference.clone();
try {
CloseableBitmap closeableBitmap = closeableReference.get();
Bitmap bitmap = closeableBitmap.getUnderlyingBitmap();
if(bitmap != null && !bitmap.isRecycled()) {
//you can use bitmap here
}
} finally {
imageReference.close();
closeableReference.close();
}
}
}
@Override
public void onFailureImpl(DataSource dataSource) {
Throwable throwable = dataSource.getFailureCause();
// handle failure
}
};
getBitmap(context, uri, width, height, dataSubscriber);
}
/**
*
* @param context
* @param uri
* @param width
* @param height
* @param dataSubscriber
*/
public void getBitmap(Context context, Uri uri, int width, int height, DataSubscriber dataSubscriber){
ImagePipeline imagePipeline = Fresco.getImagePipeline();
ImageRequestBuilder builder = ImageRequestBuilder.newBuilderWithSource(uri);
if(width > 0 && height > 0){
builder.setResizeOptions(new ResizeOptions(width, height));
}
ImageRequest request = builder.build();
DataSource<CloseableReference<CloseableImage>>
dataSource = imagePipeline.fetchDecodedImage(request, context);
dataSource.subscribe(dataSubscriber, UiThreadExecutorService.getInstance());
}
per quanto ne so non c'è modo direttamente a scambiare questo le librerie dal Affresco non si basa sulla classe Bitmap standard, ma piuttosto nella loro attuazione. –