List of usage examples for android.content ContentResolver openFileDescriptor
public final @Nullable ParcelFileDescriptor openFileDescriptor(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException
From source file:br.com.viniciuscr.notification2android.mediaPlayer.MusicUtils.java
private static Bitmap getArtworkQuick(Context context, long album_id, int w, int h) { // NOTE: There is in fact a 1 pixel border on the right side in the ImageView // used to display this drawable. Take it into account now, so we don't have to // scale later. w -= 1;/* ww w . j a v a 2 s. co m*/ ContentResolver res = context.getContentResolver(); Uri uri = ContentUris.withAppendedId(sArtworkUri, album_id); if (uri != null) { ParcelFileDescriptor fd = null; try { fd = res.openFileDescriptor(uri, "r"); int sampleSize = 1; // Compute the closest power-of-two scale factor // and pass that to sBitmapOptionsCache.inSampleSize, which will // result in faster decoding and better quality sBitmapOptionsCache.inJustDecodeBounds = true; BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor(), null, sBitmapOptionsCache); int nextWidth = sBitmapOptionsCache.outWidth >> 1; int nextHeight = sBitmapOptionsCache.outHeight >> 1; while (nextWidth > w && nextHeight > h) { sampleSize <<= 1; nextWidth >>= 1; nextHeight >>= 1; } sBitmapOptionsCache.inSampleSize = sampleSize; sBitmapOptionsCache.inJustDecodeBounds = false; Bitmap b = BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor(), null, sBitmapOptionsCache); if (b != null) { // finally rescale to exactly the size we need if (sBitmapOptionsCache.outWidth != w || sBitmapOptionsCache.outHeight != h) { Bitmap tmp = Bitmap.createScaledBitmap(b, w, h, true); // Bitmap.createScaledBitmap() can return the same bitmap if (tmp != b) b.recycle(); b = tmp; } } return b; } catch (FileNotFoundException e) { } finally { try { if (fd != null) fd.close(); } catch (IOException e) { } } } return null; }
From source file:org.dkf.jed2k.android.LollipopFileSystem.java
public Pair<ParcelFileDescriptor, DocumentFile> openFD(File file, String mode) { if (!("r".equals(mode) || "w".equals(mode) || "rw".equals(mode))) { LOG.error("Only r, w or rw modes supported"); return null; }//from w w w.j a v a 2s . c om DocumentFile f = getFile(app, file, true); if (f == null) { LOG.error("Unable to obtain or create document for file: {}", file); return null; } try { ContentResolver cr = app.getContentResolver(); return Pair.create(cr.openFileDescriptor(f.getUri(), mode), f); } catch (Exception e) { LOG.error("Unable to get native fd", e); return null; } }
From source file:com.frostwire.android.LollipopFileSystem.java
public int openFD(File file, String mode) { if (!("r".equals(mode) || "w".equals(mode) || "rw".equals(mode))) { LOG.error("Only r, w or rw modes supported"); return -1; }// ww w .j a va 2 s.com DocumentFile f = getFile(app, file, true); if (f == null) { LOG.error("Unable to obtain or create document for file: " + file); return -1; } try { ContentResolver cr = app.getContentResolver(); ParcelFileDescriptor fd = cr.openFileDescriptor(f.getUri(), mode); if (fd == null) { return -1; } return fd.detachFd(); } catch (Throwable e) { LOG.error("Unable to get native fd", e); return -1; } }
From source file:org.camlistore.UploadService.java
ParcelFileDescriptor getFileDescriptor(Uri uri) {
ContentResolver cr = getContentResolver();
try {/*w w w .j av a 2 s .c om*/
return cr.openFileDescriptor(uri, "r");
} catch (FileNotFoundException e) {
Log.w(TAG, "FileNotFound in getFileDescriptor() for " + uri);
return null;
}
}
From source file:com.android.messaging.datamodel.BugleDatabaseOperations.java
/** * Read all the parts for a message//from w w w . jav a2 s . c om * @param dbWrapper database * @param message read parts for this message * @param checkAttachmentFilesExist check each attachment file and only include if file exists */ private static void readMessagePartsData(final DatabaseWrapper dbWrapper, final MessageData message, final boolean checkAttachmentFilesExist) { final ContentResolver contentResolver = Factory.get().getApplicationContext().getContentResolver(); Cursor cursor = null; try { cursor = dbWrapper.query(DatabaseHelper.PARTS_TABLE, MessagePartData.getProjection(), PartColumns.MESSAGE_ID + "=?", new String[] { message.getMessageId() }, null, null, null); while (cursor.moveToNext()) { final MessagePartData messagePartData = MessagePartData.createFromCursor(cursor); if (checkAttachmentFilesExist && messagePartData.isAttachment() && !UriUtil.isBugleAppResource(messagePartData.getContentUri())) { try { // Test that the file exists before adding the attachment to the draft final ParcelFileDescriptor fileDescriptor = contentResolver .openFileDescriptor(messagePartData.getContentUri(), "r"); if (fileDescriptor != null) { fileDescriptor.close(); message.addPart(messagePartData); } } catch (final IOException e) { // The attachment's temp storage no longer exists, just ignore the file } catch (final SecurityException e) { // Likely thrown by openFileDescriptor due to an expired access grant. if (LogUtil.isLoggable(LogUtil.BUGLE_TAG, LogUtil.DEBUG)) { LogUtil.d(LogUtil.BUGLE_TAG, "uri: " + messagePartData.getContentUri()); } } } else { message.addPart(messagePartData); } } } finally { if (cursor != null) { cursor.close(); } } }
From source file:com.android.mail.compose.ComposeActivity.java
/** * Opens {@link ParcelFileDescriptor} for each of the attachments. This method must be * called before the ComposeActivity finishes. * Note: The caller is responsible for closing these file descriptors. *///from w ww. j av a 2s. c o m private static Bundle initializeAttachmentFds(final Context context, final List<Attachment> attachments) { if (attachments == null || attachments.size() == 0) { return null; } final Bundle result = new Bundle(attachments.size()); final ContentResolver resolver = context.getContentResolver(); for (Attachment attachment : attachments) { if (attachment == null || Utils.isEmpty(attachment.contentUri)) { continue; } ParcelFileDescriptor fileDescriptor; try { fileDescriptor = resolver.openFileDescriptor(attachment.contentUri, "r"); } catch (FileNotFoundException e) { LogUtils.e(LOG_TAG, e, "Exception attempting to open attachment"); fileDescriptor = null; } catch (SecurityException e) { // We have encountered a security exception when attempting to open the file // specified by the content uri. If the attachment has been cached, this // isn't a problem, as even through the original permission may have been // revoked, we have cached the file. This will happen when saving/sending // a previously saved draft. // TODO(markwei): Expose whether the attachment has been cached through the // attachment object. This would allow us to limit when the log is made, as // if the attachment has been cached, this really isn't an error LogUtils.e(LOG_TAG, e, "Security Exception attempting to open attachment"); // Just set the file descriptor to null, as the underlying provider needs // to handle the file descriptor not being set. fileDescriptor = null; } if (fileDescriptor != null) { result.putParcelable(attachment.contentUri.toString(), fileDescriptor); } } return result; }