I am receiving a stream from the server. That stream represents a PDF, and I KNOW it is a pdf file. I am receiving it, and storing in the phone this way:
ResponseBody body=response.body();
File dir = new File(Environment.getExternalStorageDirectory() + “/myApp/“+variable+"/“+anotherVariable);
if (!dir.exists()) {
dir.mkdirs();
}
File file = new File(dir, objetoFichero.get("nombre").getAsString());
try {
file.createNewFile();
FileOutputStream fos=new FileOutputStream(file);
InputStream is = body.byteStream();
int len = 0;
byte[] buffer = new byte[1024];
while((len = is.read(buffer)) != -1) {
fos.write(buffer,0,len);
}
fos.flush();
fos.close();
is.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
This way, the file is created, but using a file browser I try to open the pdf, and it opens, but it is blank.
Any idea about what I am doing wrong?
Thank you.
Assuming you have the document (the pdf) as a byteArray (documentBytes)
I would:
createUri(this, new File(getCacheDir(), "pdf/whateverNameYouWant.pdf"), documentBytes)
public static Uri createUri(#NonNull final Context context, final File name, #NonNull final byte[] data) throws IOException {
final File parent = name.getParentFile();
if (!parent.exists()) {
FileUtils.mkdirs(parent, null);
}
final OutputStream out = new FileOutputStream(name);
try {
out.write(data);
} finally {
StreamUtils.closeSilently(out);
}
return createUri(context, name);
}
public static void mkdirs(final File dir) {
if (!dir.mkdirs()) {
Log.w("File", "Failed to mkdirs: " + dir);
}
}
public static void closeSilently(#Nullable final Closeable stream) {
if (stream != null) {
try {
stream.close();
} catch (final Throwable ignore) {
}
}
}
You can then show the document with the uri received by createUri()
Related
I am using the com.googlecode.mp4parser library to merge audio files. I have an external audio mp3 file which I store in raw resources. This file fails to merge due to following exception, Below is my code :
Reading a file from raw folder :
InputStream is = context.getResources().openRawResource(R.raw.my_mp3_file);
OutputStream output = null;
try {
File file = new File(context.getFilesDir(), "silence.mp3");
if(!file.exists()) {
file.createNewFile();
}
output = new FileOutputStream(file);
byte[] buffer = new byte[4 * 1024]; // or other buffer size
int read;
while ((read = is.read(buffer)) != -1) {
output.write(buffer, 0, read);
}
output.flush();
output.close();
fileReference= file;
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace(); // handle exception, define IOException and others
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Code that reads movie ( Which is failing ) :
if(fileReference.exists()) {
Movie m = new MovieCreator().build(fileReference.getAbsolutePath());
}
While getting this Movie m my code fails throwing the exception :
java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.List com.coremedia.iso.boxes.MovieBox.getBoxes(java.lang.Class)' on a null object reference
It works for some mp3 files fails for raw resource files ? What's wrong here ?
Here are my conclusion and solution after a lot of research
MP4Parser for merging audio and video only use .m4a extension
String root = Environment.getExternalStorageDirectory().toString();
String audio = root + "/" + "tests.m4a";
String video = root + "/" + "output.mp4";
String output = root + "/" + "aud_vid.mp4";
mux(video, audio, output);
and here is the method
public boolean mux(String videoFile, String audioFile, String outputFile) {
Movie video;
try {
video = new MovieCreator().build(videoFile);
} catch (RuntimeException e) {
e.printStackTrace();
return false;
} catch (IOException e) {
e.printStackTrace();
return false;
}
Movie audio;
try {
audio = new MovieCreator().build(audioFile);
} catch (IOException e) {
e.printStackTrace();
return false;
} catch (NullPointerException e) {
e.printStackTrace();
return false;
}
Track audioTrack = audio.getTracks().get(0);
video.addTrack(audioTrack);
Container out = new DefaultMp4Builder().build(video);
FileOutputStream fos;
try {
fos = new FileOutputStream(outputFile);
} catch (FileNotFoundException e) {
e.printStackTrace();
return false;
}
BufferedWritableFileByteChannel byteBufferByteChannel = new BufferedWritableFileByteChannel(fos);
try {
out.writeContainer(byteBufferByteChannel);
byteBufferByteChannel.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
return false;
}
return true;
}
private static class BufferedWritableFileByteChannel implements WritableByteChannel {
private static final int BUFFER_CAPACITY = 1000000;
private boolean isOpen = true;
private final OutputStream outputStream;
private final ByteBuffer byteBuffer;
private final byte[] rawBuffer = new byte[BUFFER_CAPACITY];
private BufferedWritableFileByteChannel(OutputStream outputStream) {
this.outputStream = outputStream;
this.byteBuffer = ByteBuffer.wrap(rawBuffer);
}
#Override
public int write(ByteBuffer inputBuffer) throws IOException {
int inputBytes = inputBuffer.remaining();
if (inputBytes > byteBuffer.remaining()) {
dumpToFile();
byteBuffer.clear();
if (inputBytes > byteBuffer.remaining()) {
throw new BufferOverflowException();
}
}
byteBuffer.put(inputBuffer);
return inputBytes;
}
#Override
public boolean isOpen() {
return isOpen;
}
#Override
public void close() throws IOException {
dumpToFile();
isOpen = false;
}
private void dumpToFile() {
try {
outputStream.write(rawBuffer, 0, byteBuffer.position());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
Seem like this issue happens because Google devs have forgotten to handle that NullPointerException case. After several hours diving into the code base, I finally found the solution and It works very fine, you can try this:
Movie movie;
try{
movie = MovieCreator.build(videoPath);
}catch(NullPointerException e){
Log.d("AsyncTask", "Catch null getMovieBoxes");
FileDataSourceImpl fileDataSource = new FileDataSourceImpl(new File(videoPath));
IsoFile isoFile = new IsoFile(fileDataSource);
List<TrackBox> trackBoxes = isoFile.getBoxes(TrackBox.class);
for (TrackBox trackBox : trackBoxes) {
SchemeTypeBox schm = Path.getPath(trackBox, "mdia[0]/minf[0]/stbl[0]/stsd[0]/enc.[0]/sinf[0]/schm[0]");
if (schm != null && (schm.getSchemeType().equals("cenc") || schm.getSchemeType().equals("cbc1"))) {
movie.addTrack(new CencMp4TrackImplImpl(fileDataSource.toString() + "[" + trackBox.getTrackHeaderBox().getTrackId() + "]", trackBox));
} else {
movie.addTrack(new Mp4TrackImpl(fileDataSource.toString() + "[" + trackBox.getTrackHeaderBox().getTrackId() + "]" , trackBox));
}
}
}
I need to download image from server and save it to folder, so I am using Retrofit 2.
Problem is that saved images is empty when I look for it in folder and I tried to debug and saw that Bitmap is null.
I do not get why, here is my code:
#GET("images/{userId}/{imageName}")
#Streaming
Call<ResponseBody> downloadImage(#Path("userId") String userId, #Path("imageName") String imageName);
Download image code:
private void downloadImage(final int position) {
String url = "htttp://myserver.com/";
retrofitImage = new Retrofit.Builder()
.baseUrl(url)
.addConverterFactory(GsonConverterFactory.create())
.build();
imageApi = retrofitImage.create(BlastApiService.class);
String userId = feedList.get(position).getUserId();
String fileName = feedList.get(position).getFile();
Call<ResponseBody> imageCall = imageApi.downloadImage(userId, fileName );
imageCall.enqueue(new Callback<ResponseBody>() {
#Override
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
if(response.isSuccess()){
String fileName = feedList.get(position).getFile();
InputStream is = response.body().byteStream();
Bitmap bitmap = BitmapFactory.decodeStream(is);
saveImage1(bitmap, fileName);
} else{
try {
Log.d("TAG", "response error: "+response.errorBody().string().toString());
} catch (IOException e) {
e.printStackTrace();
}
}
}
#Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
Log.d("TAG", "Image download error: " + t.getLocalizedMessage());
}
});
}
Here is method to save image.
private void saveImage1(Bitmap imageToSave, String fileName) {
// get the path to sdcard
File sdcard = Environment.getExternalStorageDirectory();
// to this path add a new directory path
File dir = new File(sdcard.getAbsolutePath() + "/FOLDER_NAME/");
// create this directory if not already created
dir.mkdir();
// create the file in which we will write the contents
File file = new File(dir, fileName);
try {
FileOutputStream out = new FileOutputStream(file);
imageToSave.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
counter++;
// if (counter < feedList.size()) {
//downloadImage(counter);
//} else {
setImage();
//}
} catch (Exception e) {
e.printStackTrace();
}
}
This worked for me:
public static boolean writeResponseBody(ResponseBody body, String path) {
try {
File file = new File(path);
InputStream inputStream = null;
OutputStream outputStream = null;
try {
byte[] fileReader = new byte[4096];
//long fileSize = body.contentLength();
//long fileSizeDownloaded = 0;
inputStream = body.byteStream();
outputStream = new FileOutputStream(file);
while (true) {
int read = inputStream.read(fileReader);
if (read == -1) {
break;
}
outputStream.write(fileReader, 0, read);
//fileSizeDownloaded += read;
}
outputStream.flush();
return true;
} catch (IOException e) {
return false;
} finally {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.close();
}
}
} catch (IOException e) {
return false;
}
}
after call this method you can get image from path:
boolean result = writeResponseBody(body, path);
if(result) {
Bitmap bitmap = BitmapFactory.decodeFile(path)
}
private boolean writeResponseBodyToDisk(ResponseBody body, String name) {
try {
String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).toString() + "/MyApp";
File dir = new File(path);
if (!dir.exists())
dir.mkdirs();
File futureStudioIconFile = new File(path, name + ".pdf");//am saving pdf file
if (futureStudioIconFile.exists())
futureStudioIconFile.delete();
futureStudioIconFile.createNewFile();
InputStream inputStream = null;
OutputStream outputStream = null;
try {
byte[] fileReader = new byte[4096];
long fileSize = body.contentLength();
long fileSizeDownloaded = 0;
inputStream = body.byteStream();
outputStream = new FileOutputStream(futureStudioIconFile);
while (true) {
int read = inputStream.read(fileReader);
if (read == -1) {
break;
}
outputStream.write(fileReader, 0, read);
fileSizeDownloaded += read;
}
outputStream.flush();
return true;
} catch (IOException e) {
e.printStackTrace();
return false;
} finally {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.close();
}
}
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
Is there any way to install a vCard using android app, as soon as it starts for the first time.
Although for running any block of code for the first time, I can use these lines ...
if (isFirstTime()) {
//First time code
}
and
private boolean isFirstTime()
{
SharedPreferences preferences = getPreferences(MODE_PRIVATE);
boolean ranBefore = preferences.getBoolean("RanBefore", false);
if (!ranBefore) {
SharedPreferences.Editor editor = preferences.edit();
editor.putBoolean("RanBefore", true);
editor.commit();
}
return ranBefore;
}
but how will I be able to install a vCard from app.
Note: Although I have the vCard already made, and can be put in the raw directory.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(storage_path+vfile)),"text/x-vcard");
startActivity(intent);
Edit
Copy vcard to sdcard
private void copyAssets() { AssetManager assetManager = getAssets();
String[] files = null;
try { files = assetManager.list(""); } catch (IOException e)
{ Log.e("tag", "Failed to get asset file list.", e);
} for(String filename : files)
{
InputStream in = null; OutputStream out = null;
try { in = assetManager.open(filename);
File outFile = new File(getExternalFilesDir(null), filename);
out = new FileOutputStream(outFile); copyFile(in, out); } catch(IOException e) {
Log.e("tag", "Failed to copy asset file: " + filename, e); }
finally {
if (in != null) { try { in.close();
} catch (IOException e) { // NOOP }
} if (out != null) {
try { out.close(); } catch (IOException e) { // NOOP }
}
}
}
} private void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024]; int read; while((read = in.read(buffer)) != -1){ out.write(buffer, 0, read);
} }
Then type the location where I have written storage_path
Please help me out I am not getting the default ringtone file path.
Can any body tell how to get access to the default ringtone in Android. Here is my code for doing that thing. I have commented the path that I gave directly to asset manager to open the file and read it.
public void copyAssets() {
AssetManager assetManager = this.getAssets();
// String FileName="//media/internal/audio/media/";
File io=getFilesDir();
String[] files = null;
try {
files = assetManager.list("");
// files=assetManager.list(FileName);
} catch (IOException e) {
Log.e("tag", "Failed to get asset file list.", e);
}
for (String filename : files) {
InputStream in = null;
OutputStream out = null;
// File mydir = context.getDir("mydir", Context.MODE_PRIVATE); //Creating an internal dir;
// File fileWithinMyDir = new File(mydir, "myfile"); //Getting a file within the dir.
// FileOutputStream out = new FileOutputStream(fileWithinMyDir); //Use the stream as usual
//
try {
in = assetManager.open("Ringtone");
// File myFolder = new File(Environment.getDataDirectory() + "/myFolder");
File myFolder = this.getDir("myFolder", this.MODE_PRIVATE);
File fileWithinMyDir=new File(myFolder,"Ringtoness");
out = new FileOutputStream(fileWithinMyDir);
copyFile(in, out);
} catch (IOException e) {
Log.e("tag", "Failed to copy asset file: " + filename, e);
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
}
}
if (out != null) {
try {
out.close();
} catch (IOException e) {
}
}
}
}
}
public void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1) {
out.write(buffer, 0, read);
}
}`
earlier i transfer only video file over socket but when i require file size on the other end then problem occured,so i thought to send Object through Socket but there comes problem with file size limit.It transfer files upto size of 45MB however i want to transfer files of size more than that.
i have posted code below:
public class WiFiDirectBundle implements Serializable {
private String fileName;
private String fileType;
private Long fileSize;
ArrayList<byte[]> chunks;
ArrayList<Integer> a;
static int len=0;
byte[] buf;
public WiFiDirectBundle() {
// TODO Auto-generated constructor stub
}
public void setFile(String path) throws FileNotFoundException,
IOException {
File f = new File(path);
fileName = f.getName();
fileType = MimeTypeMap.getFileExtensionFromUrl(f.getAbsolutePath());
fileSize = f.length();
Log.d(WiFiDirectActivity.TAG,"name of file is"+fileName);
Log.d(WiFiDirectActivity.TAG,"size of file is"+fileSize);
FileInputStream fin = null;
try {
fin = new FileInputStream(f);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
fileContent = new byte[(int) f.length()];
try {
fin.read(fileContent);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
fin.close();
}
// restores the file of the bundle, given its directory (change to whatever
// fits you better)
public String restoreFile(String baseDir) throws IOException {
File f = new File(baseDir + "/" + fileName);
File dirs = new File(f.getParent());
if (!dirs.exists())
dirs.mkdirs();
f.createNewFile();
try {
FileOutputStream fos = new FileOutputStream(f);
if (fileContent != null) {
fos.write(fileContent);
}
fos.close();
return f.getAbsolutePath();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
I think this fileContent = new byte[(int) f.length()]; in your code might cause Out of memory. As you have declared byte[] buf;, why not use a buf instead?