List of usage examples for android.content.res AssetFileDescriptor close
@Override public void close() throws IOException
getParcelFileDescriptor().close(). From source file:edu.umbc.cs.ebiquity.mithril.parserapp.contentparsers.contacts.ContactsListFragment.java
/** * Decodes and scales a contact's image from a file pointed to by a Uri in the contact's data, * and returns the result as a Bitmap. The column that contains the Uri varies according to the * platform version.//w w w.java2 s . c om * * @param photoData For platforms prior to Android 3.0, provide the Contact._ID column value. * For Android 3.0 and later, provide the Contact.PHOTO_THUMBNAIL_URI value. * @param imageSize The desired target width and height of the output image in pixels. * @return A Bitmap containing the contact's image, resized to fit the provided image size. If * no thumbnail exists, returns null. */ private Bitmap loadContactPhotoThumbnail(String photoData, int imageSize) { // Ensures the Fragment is still added to an activity. As this method is called in a // background thread, there's the possibility the Fragment is no longer attached and // added to an activity. If so, no need to spend resources loading the contact photo. if (!isAdded() || getActivity() == null) { return null; } // Instantiates an AssetFileDescriptor. Given a content Uri pointing to an image file, the // ContentResolver can return an AssetFileDescriptor for the file. AssetFileDescriptor afd = null; // This "try" block catches an Exception if the file descriptor returned from the Contacts // Provider doesn't point to an existing file. try { Uri thumbUri; // If Android 3.0 or later, converts the Uri passed as a string to a Uri object. if (Utils.hasHoneycomb()) { thumbUri = Uri.parse(photoData); } else { // For versions prior to Android 3.0, appends the string argument to the content // Uri for the Contacts table. final Uri contactUri = Uri.withAppendedPath(Contacts.CONTENT_URI, photoData); // Appends the content Uri for the Contacts.Photo table to the previously // constructed contact Uri to yield a content URI for the thumbnail image thumbUri = Uri.withAppendedPath(contactUri, Photo.CONTENT_DIRECTORY); } // Retrieves a file descriptor from the Contacts Provider. To learn more about this // feature, read the reference documentation for // ContentResolver#openAssetFileDescriptor. afd = getActivity().getContentResolver().openAssetFileDescriptor(thumbUri, "r"); // Gets a FileDescriptor from the AssetFileDescriptor. A BitmapFactory object can // decode the contents of a file pointed to by a FileDescriptor into a Bitmap. FileDescriptor fileDescriptor = afd.getFileDescriptor(); if (fileDescriptor != null) { // Decodes a Bitmap from the image pointed to by the FileDescriptor, and scales it // to the specified width and height return ImageLoader.decodeSampledBitmapFromDescriptor(fileDescriptor, imageSize, imageSize); } } catch (FileNotFoundException e) { // If the file pointed to by the thumbnail URI doesn't exist, or the file can't be // opened in "read" mode, ContentResolver.openAssetFileDescriptor throws a // FileNotFoundException. if (BuildConfig.DEBUG) { // Log.d(TAG, "Contact photo thumbnail not found for contact " + photoData // + ": " + e.toString()); } } finally { // If an AssetFileDescriptor was returned, try to close it if (afd != null) { try { afd.close(); } catch (IOException e) { // Closing a file descriptor might cause an IOException if the file is // already closed. Nothing extra is needed to handle this. } } } // If the decoding failed, returns null return null; }
From source file:com.aujur.ebookreader.activity.ReadingFragment.java
private void playBeep(boolean error) { if (!isAdded()) { return;//w ww . j av a 2s.c o m } try { MediaPlayer beepPlayer = new MediaPlayer(); String file = "beep.mp3"; if (error) { file = "error.mp3"; } AssetFileDescriptor descriptor = context.getAssets().openFd(file); beepPlayer.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(), descriptor.getLength()); descriptor.close(); beepPlayer.prepare(); beepPlayer.start(); } catch (Exception io) { // We'll manage without the beep :) } }
From source file:com.dsdar.thosearoundme.util.ContactsListFragment.java
/** * Decodes and scales a contact's image from a file pointed to by a Uri in * the contact's data, and returns the result as a Bitmap. The column that * contains the Uri varies according to the platform version. * /*from w w w .j a va 2 s . com*/ * @param photoData * For platforms prior to Android 3.0, provide the Contact._ID * column value. For Android 3.0 and later, provide the * Contact.PHOTO_THUMBNAIL_URI value. * @param imageSize * The desired target width and height of the output image in * pixels. * @return A Bitmap containing the contact's image, resized to fit the * provided image size. If no thumbnail exists, returns null. */ private Bitmap loadContactPhotoThumbnail(String photoData, int imageSize) { // Ensures the Fragment is still added to an activity. As this method is // called in a // background thread, there's the possibility the Fragment is no longer // attached and // added to an activity. If so, no need to spend resources loading the // contact photo. if (!isAdded() || getActivity() == null) { return null; } // Instantiates an AssetFileDescriptor. Given a content Uri pointing to // an image file, the // ContentResolver can return an AssetFileDescriptor for the file. AssetFileDescriptor afd = null; // This "try" block catches an Exception if the file descriptor returned // from the Contacts // Provider doesn't point to an existing file. try { Uri thumbUri; // If Android 3.0 or later, converts the Uri passed as a string to a // Uri object. if (Util.hasHoneycomb()) { thumbUri = Uri.parse(photoData); } else { // For versions prior to Android 3.0, appends the string // argument to the content // Uri for the Contacts table. final Uri contactUri = Uri.withAppendedPath(Contacts.CONTENT_URI, photoData); // Appends the content Uri for the Contacts.Photo table to the // previously // constructed contact Uri to yield a content URI for the // thumbnail image thumbUri = Uri.withAppendedPath(contactUri, Photo.CONTENT_DIRECTORY); } // Retrieves a file descriptor from the Contacts Provider. To learn // more about this // feature, read the reference documentation for // ContentResolver#openAssetFileDescriptor. afd = getActivity().getContentResolver().openAssetFileDescriptor(thumbUri, "r"); // Gets a FileDescriptor from the AssetFileDescriptor. A // BitmapFactory object can // decode the contents of a file pointed to by a FileDescriptor into // a Bitmap. FileDescriptor fileDescriptor = afd.getFileDescriptor(); if (fileDescriptor != null) { // Decodes a Bitmap from the image pointed to by the // FileDescriptor, and scales it // to the specified width and height return ImageLoader.decodeSampledBitmapFromDescriptor(fileDescriptor, imageSize, imageSize); } } catch (FileNotFoundException e) { // If the file pointed to by the thumbnail URI doesn't exist, or the // file can't be // opened in "read" mode, ContentResolver.openAssetFileDescriptor // throws a // FileNotFoundException. if (BuildConfig.DEBUG) { Log.d(TAG, "Contact photo thumbnail not found for contact " + photoData + ": " + e.toString()); } } finally { // If an AssetFileDescriptor was returned, try to close it if (afd != null) { try { afd.close(); } catch (IOException e) { // Closing a file descriptor might cause an IOException if // the file is // already closed. Nothing extra is needed to handle this. } } } // If the decoding failed, returns null return null; }
From source file:org.opendatakit.tables.tasks.InitializeTask.java
private void extractFromRawZip(int resourceId, boolean overwrite, ArrayList<String> result) { String message = null;/*from w ww .j ava 2 s . c om*/ AssetFileDescriptor fd = null; try { fd = mContext.getResources().openRawResourceFd(resourceId); final long size = fd.getLength() / 2L; // apparently over-counts by 2x? InputStream rawInputStream = null; try { rawInputStream = fd.createInputStream(); ZipInputStream zipInputStream = null; ZipEntry entry = null; try { // count the number of files in the zip zipInputStream = new ZipInputStream(rawInputStream); int totalFiles = 0; while ((entry = zipInputStream.getNextEntry()) != null) { message = null; if (isCancelled()) { message = "cancelled"; result.add(entry.getName() + " " + message); break; } ++totalFiles; } zipInputStream.close(); // and re-open the stream, reading it this time... fd = mContext.getResources().openRawResourceFd(resourceId); rawInputStream = fd.createInputStream(); zipInputStream = new ZipInputStream(rawInputStream); long bytesProcessed = 0L; long lastBytesProcessedThousands = 0L; int nFiles = 0; while ((entry = zipInputStream.getNextEntry()) != null) { message = null; if (isCancelled()) { message = "cancelled"; result.add(entry.getName() + " " + message); break; } ++nFiles; File tempFile = new File(ODKFileUtils.getAppFolder(mAppName), entry.getName()); String formattedString = mContext.getString(R.string.expansion_unzipping_without_detail, entry.getName(), nFiles, totalFiles); String detail; if (entry.isDirectory()) { detail = mContext.getString(R.string.expansion_create_dir_detail); publishProgress(formattedString, detail); tempFile.mkdirs(); } else { int bufferSize = 8192; OutputStream out = new BufferedOutputStream(new FileOutputStream(tempFile, false), bufferSize); byte buffer[] = new byte[bufferSize]; int bread; while ((bread = zipInputStream.read(buffer)) != -1) { bytesProcessed += bread; long curThousands = (bytesProcessed / 1000L); if (curThousands != lastBytesProcessedThousands) { detail = mContext.getString(R.string.expansion_unzipping_detail, bytesProcessed, size); publishProgress(formattedString, detail); lastBytesProcessedThousands = curThousands; } out.write(buffer, 0, bread); } out.flush(); out.close(); detail = mContext.getString(R.string.expansion_unzipping_detail, bytesProcessed, size); publishProgress(formattedString, detail); } WebLogger.getLogger(mAppName).i(TAG, "Extracted ZipEntry: " + entry.getName()); message = mContext.getString(R.string.success); result.add(entry.getName() + " " + message); } ODKFileUtils.assertConfiguredTablesApp(mAppName, Tables.getInstance().getVersionCodeString()); String completionString = mContext.getString(R.string.expansion_unzipping_complete, totalFiles); publishProgress(completionString, null); } catch (IOException e) { WebLogger.getLogger(mAppName).printStackTrace(e); mPendingSuccess = false; if (e.getCause() != null) { message = e.getCause().getMessage(); } else { message = e.getMessage(); } if (entry != null) { result.add(entry.getName() + " " + message); } else { result.add("Error accessing zipfile resource " + message); } } finally { if (zipInputStream != null) { try { zipInputStream.close(); rawInputStream = null; fd = null; } catch (IOException e) { WebLogger.getLogger(mAppName).printStackTrace(e); WebLogger.getLogger(mAppName).e(TAG, "Closing of ZipFile failed: " + e.toString()); } } if (rawInputStream != null) { try { rawInputStream.close(); fd = null; } catch (IOException e) { WebLogger.getLogger(mAppName).printStackTrace(e); WebLogger.getLogger(mAppName).e(TAG, "Closing of ZipFile failed: " + e.toString()); } } if (fd != null) { try { fd.close(); } catch (IOException e) { WebLogger.getLogger(mAppName).printStackTrace(e); WebLogger.getLogger(mAppName).e(TAG, "Closing of ZipFile failed: " + e.toString()); } } } } catch (Exception e) { WebLogger.getLogger(mAppName).printStackTrace(e); mPendingSuccess = false; if (e.getCause() != null) { message = e.getCause().getMessage(); } else { message = e.getMessage(); } result.add("Error accessing zipfile resource " + message); } finally { if (rawInputStream != null) { try { rawInputStream.close(); } catch (IOException e) { WebLogger.getLogger(mAppName).printStackTrace(e); } } } } finally { if (fd != null) { try { fd.close(); } catch (IOException e) { WebLogger.getLogger(mAppName).printStackTrace(e); } } else { result.add("Error accessing zipfile resource."); } } }
From source file:org.opendatakit.survey.android.tasks.InitializationTask.java
private final void extractFromRawZip(int resourceId, boolean overwrite, ArrayList<String> result) { String message = null;// w ww.ja v a 2 s . c om AssetFileDescriptor fd = null; try { fd = appContext.getResources().openRawResourceFd(resourceId); final long size = fd.getLength(); // apparently over-counts by 2x? InputStream rawInputStream = null; try { rawInputStream = fd.createInputStream(); ZipInputStream zipInputStream = null; ZipEntry entry = null; try { // count the number of files in the zip zipInputStream = new ZipInputStream(rawInputStream); int totalFiles = 0; while ((entry = zipInputStream.getNextEntry()) != null) { message = null; if (isCancelled()) { message = "cancelled"; result.add(entry.getName() + " " + message); break; } ++totalFiles; } zipInputStream.close(); // and re-open the stream, reading it this time... fd = appContext.getResources().openRawResourceFd(resourceId); rawInputStream = fd.createInputStream(); zipInputStream = new ZipInputStream(rawInputStream); long bytesProcessed = 0L; long lastBytesProcessedThousands = 0L; int nFiles = 0; while ((entry = zipInputStream.getNextEntry()) != null) { message = null; if (isCancelled()) { message = "cancelled"; result.add(entry.getName() + " " + message); break; } ++nFiles; File tempFile = new File(ODKFileUtils.getAppFolder(appName), entry.getName()); String formattedString = appContext.getString(R.string.expansion_unzipping_without_detail, entry.getName(), nFiles, totalFiles); String detail; if (entry.isDirectory()) { detail = appContext.getString(R.string.expansion_create_dir_detail); publishProgress(formattedString, detail); tempFile.mkdirs(); } else if (overwrite || !tempFile.exists()) { int bufferSize = 8192; OutputStream out = new BufferedOutputStream(new FileOutputStream(tempFile, false), bufferSize); byte buffer[] = new byte[bufferSize]; int bread; while ((bread = zipInputStream.read(buffer)) != -1) { bytesProcessed += bread; long curThousands = (bytesProcessed / 1000L); if (curThousands != lastBytesProcessedThousands) { detail = appContext.getString(R.string.expansion_unzipping_detail, bytesProcessed, size); publishProgress(formattedString, detail); lastBytesProcessedThousands = curThousands; } out.write(buffer, 0, bread); } out.flush(); out.close(); detail = appContext.getString(R.string.expansion_unzipping_detail, bytesProcessed, size); publishProgress(formattedString, detail); } WebLogger.getLogger(appName).i(t, "Extracted ZipEntry: " + entry.getName()); } String completionString = appContext.getString(R.string.expansion_unzipping_complete, totalFiles); publishProgress(completionString, null); } catch (IOException e) { WebLogger.getLogger(appName).printStackTrace(e); mPendingSuccess = false; if (e.getCause() != null) { message = e.getCause().getMessage(); } else { message = e.getMessage(); } if (entry != null) { result.add(entry.getName() + " " + message); } else { result.add("Error accessing zipfile resource " + message); } } finally { if (zipInputStream != null) { try { zipInputStream.close(); } catch (IOException e) { WebLogger.getLogger(appName).printStackTrace(e); WebLogger.getLogger(appName).e(t, "Closing of ZipFile failed: " + e.toString()); } } } } catch (Exception e) { WebLogger.getLogger(appName).printStackTrace(e); mPendingSuccess = false; if (e.getCause() != null) { message = e.getCause().getMessage(); } else { message = e.getMessage(); } result.add("Error accessing zipfile resource " + message); } finally { if (rawInputStream != null) { try { rawInputStream.close(); } catch (IOException e) { WebLogger.getLogger(appName).printStackTrace(e); } } } } finally { if (fd != null) { try { fd.close(); } catch (IOException e) { WebLogger.getLogger(appName).printStackTrace(e); } } else { result.add("Error accessing zipfile resource."); } } }