Retrofit 2 download image and save to folder - android

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;
}
}

Related

Download HTML file from URL using Retrofit

I am getting a URL in response. I want to download the html of that URL so that user can see it offline also. Its a recyclerView in which each items contain a URL. So when user clicks on the URL of one item it should save it in external disk.
Below is the code:
NewsAdapter:
case R.id.save:
Gson gson = new GsonBuilder()
.setLenient()
.create();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("https://www.nytimes.com/")
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
Log.i("Retrofit build", "initiated");
ApiInterface retrofitInterface = retrofit.create(ApiInterface.class);
final Call< ResponseBody > call = retrofitInterface.downloadFileWithDynamicUrlSync("2017/09/13/us/nursing-home-deaths-florida.html");
Log.i("Retrofit req execute", "initiated");
new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(Void... voids) {
boolean writtenToDisk = false;
try {
writtenToDisk = writeResponseBodyToDisk(call.execute().body());
} catch (IOException e) {
e.printStackTrace();
}
;
Log.d("success", "file download was a success? " + writtenToDisk);
return null;
}
}.execute();
break;
private boolean writeResponseBodyToDisk(ResponseBody body) {
try {
// todo change the file location/name according to your needs
File futureStudioIconFile = new File(Environment.DIRECTORY_DOWNLOADS + File.separator + "Future Studio Icon.png");
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;
Log.d("filedownload", "file download: " + fileSizeDownloaded + " of " + fileSize);
}
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;
}
}
ApiInterface:
// option 2: using a dynamic URL
#Streaming
#GET
Call<ResponseBody> downloadFileWithDynamicUrlSync(#Url String fileUrl);
I am also getting the error:
Failed to invoke public com.squareup.okhttp.ResponseBody() with no args
Can someone tell me how to implement it correctly.
Use URL with domain name to download file.Remove streaming annotation don't need that.
You are not receiving file body as you are not using complete URL.
Create an interface like this
#GET
Call<ResponseBody> downloadFile(#Url String url);
Then use this code :
public void onResponse(Call<ResponseBody> call, Response<ResponseBody>
response)
{
if (response.isSuccessful()) {
String filePath = Utils.downloadFile(response.body(),"filename");
}
}
public String downloadFile(ResponseBody body, String fileName) {
String filePath = null;
try {
int count;
byte data[] = new byte[1024 * 4];
InputStream bis = new BufferedInputStream(body.byteStream(), 1024 * 8);
File storageDir = new File(Environment.getExternalStorageDirectory(), "AppName");
if (!storageDir.exists()) {
storageDir.mkdirs();
}
File outputFile = new File(storageDir, fileName);
OutputStream output = new FileOutputStream(outputFile);
while ((count = bis.read(data)) != -1) {
output.write(data, 0, count);
}
output.flush();
output.close();
bis.close();
filePath = outputFile.getAbsolutePath();
} catch (Exception e) {
e.printStackTrace();
}
return filePath;
}

How to save a file as apk without increasing in size in Android (can not install it)

I try to download file from server and save it in internel storage and then install it.
I downloaded it using retrofit by this code
Call<ResponseBody> call = apiService.getNewVersion();
call.enqueue(new Callback<ResponseBody>() {
#Override
public void onResponse(Call<ResponseBody> call,
Response<ResponseBody> response) {
if (response.isSuccessful() ) {
Log.d("1", "server contacted and has file");
boolean writtenToDisk =
writeResponseBodyToDisk(response.body());
Log.d("2", "file download was a success? " + writtenToDisk);
} else {
Log.d("3", "server contact failed");
}
}
#Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
Log.e("4", "error");
}
});
and I saved it by this code
private boolean writeResponseBodyToDisk(ResponseBody body) {
try {
// todo change the file location/name according to your needs
File futureStudioIconFile = new
File(context.getExternalFilesDir(null) + File.separator + "app-debug.apk");
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;
Log.d("TAG", "file download: " + fileSizeDownloaded + " of "
+ fileSize);
}
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;
}
}
its original 4.56MB but it shows 6.08MB in Android storage.
When I open it to install it shows
version N /A size N/ A
and when I try to install it, it shows this parse problem
Do you have any idea to solve this problem?
How to remove extra bytes?
You should make sure that you use HttpResponseMessage.content in your web service method because a normal return will not be a standard size for the file that you want:
[HttpGet]
[Route("api/Depository/DownloadFileFTP")] // /{pass}
public HttpResponseMessage DownloadFileFTP() //string pass
{
HttpResponseMessage result = null;
string ftphost = "*******";
string ftpfilepath = "/app-debug.apk";
byte[] fileData;
string ftpfullpath = "ftp://" + ftphost + ftpfilepath;
using (WebClient request = new WebClient())
{
request.Credentials = new NetworkCredential("**", "****");
fileData = request.DownloadData(ftpfullpath);
}
byte[] bytes = fileData;
result = Request.CreateResponse(HttpStatusCode.OK);
result.Content = new ByteArrayContent(bytes);
result.Content.Headers.ContentDisposition = new
System.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
result.Content.Headers.ContentDisposition.FileName = "app.apk";
return result;
}

okhttp not downloading the file

I am using okhttp for downloading video from server. there is no error no exception but the file is not downloading every where but it seems as it is.
Here is the code:
OkHttpClient httpClient = new OkHttpClient();
Call call = httpClient.newCall(new Request.Builder().url("http://res.cloudinary.com/demo/video/upload/v1427018743/ygzxwxmflekucvqcrb8c.mp4").get().build());
try {
File file = new File(getCacheDir(), user_Videos.get(i).video_title+ ".mp4");
OutputStream out = new FileOutputStream(file);
Response response = call.execute();
if (response.code() == 200) {
InputStream inputStream = null;
try {
inputStream = response.body().byteStream();
byte[] buff = new byte[1024 * 8];
long downloaded = 0;
long target = response.body().contentLength();
publishProgress(0L, target);
while (true) {
int readed = inputStream.read(buff);
if (readed == -1) {
break;
}
//write buff
downloaded += readed;
try {
out.write(buff,0,readed);
} catch (Exception e) {
e.printStackTrace();
}
publishProgress(downloaded, target);
if (isCancelled()) {
return false;
}
}
return downloaded == target;
} catch (IOException ignore) {
return false;
} finally {
if (inputStream != null) {
out.flush();
out.close();
inputStream.close();
}
}
} else {
return false;
}
} catch (IOException e) {
e.printStackTrace();
return false;
}
The progress is showing correctly but video is not showing in directory.
Thanks.
So there is no problem in my code but the path. Thanks #greenapps who made me think about path/ directory.
Basically I just change the path to a real one instead of cache and yup here is the video.
Changed this line
File file = new File(getCacheDir(), user_Videos.get(i).video_title + ".mp4");
to this
File file = new File(Environment.getExternalStorageDirectory(), user_Videos.get(i).video_title+ ".mp4");
Thanks #greenapps for the clue.

How to parse fileinputstream returned from ResponceEntity.getbody() to write into a file in android

I want to download file(.docx,.pdf,image,or any type) from server.I am using spring-mvc REST API.By Using Resttemplate.exchange(...) i got Response from server in the form of stream but i am unable to parse it.So how should i do that and write into file?
File Return code (server) :
public ResponseEntity<?> downloadFile(..){
if (downloadFile.exists()) {
FileInputStream fileInputStream = new FileInputStream(downloadFile);
return ResponseEntity.ok()
.contentLength(downloadFile.length())
.contentType(MediaType.parseMediaType("application/octet-stream"))
.body(newInputStreamResource(fileInputStream));}
else {
return responseEntity.status(HttpStatus.NOT_FOUND)
.body(ErrorMsgWebapiUtil.AUTHORIZED_USER);
}
}
Response from Server:
<200 OK,PNG
������
IHDR����8����û������Þ¢ø������sBIT3���� ��IDATxíÝ?'T����pþÖé������T*����#8B����G¨������á���� ¡����#T����p
����P����Â*����#8B����G¨������á���� ¡����#T����p
����P����Â*����#8B����G¨������á���� ¡����#T����p
����P����Â*����#8B����G¨������á���� ¡����#T����p
����P����Â*����#8B����G¨������á���� ¡����óÿ��0\§ÁzõK��������IEND®B`
Code At my Android (client) :
try {
mRespEntity = mRestTemplate.exchange(strFinal, HttpMethod.POST, mRequestEntity, String.class);
mResponseCode = mRespEntity.getStatusCode().toString();
if (mResponseCode.equals("200")) {
String outdir = "sdcard/downloads/";
int length = Integer.parseInt(mRespEntity.getHeaders().getContentLength() + "");
inputStream = new BufferedInputStream((InputStream) mRespEntity.getBody()); //Here it Throughs Exception:java.lang.String cannot be cast to java.io.InputStream
byte[] buffer = new byte[length];
int read = 0;
File dFile = new File(outdir, filename);
fos = new DataOutputStream(new FileOutputStream(dFile));
while ((read = inputStream.read(buffer)) != -1) {
fos.write(buffer, 0, read);
}
}
} catch (Exception e) {
if (e != null) {
e.printStackTrace();
Log.e(TAG, "getFileFolderSyncData() Error:" + e.getMessage());
return false;
}
} finally {
// resetSSLFactory();
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fos != null) {
try {
// outputStream.flush();
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
At Line inputStream = new BufferedInputStream((InputStream) mRespEntity.getBody()); here it through exception :"java.lang.String cannot be cast to java.io.InputStream"
Got solution...
public String FileDownload(...){
String url = ....;
String res = ...;
String outdir = ...;
File outputFile = new File(outdir, filename);
BufferedInputStream in = null;
FileOutputStream fout = null;
try {
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("param1", value);//post parameters
String urlParameters = ...;
// Send post request
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
int responseCode = con.getResponseCode();
if (responseCode == 200) {
in = new BufferedInputStream(con.getInputStream());
fout = new FileOutputStream(outputFile);
final byte data[] = new byte[1024];
int count;
while ((count = in.read(data, 0, 1024)) != -1) {
fout.write(data, 0, count);
}
res = "true";
} else {
res = con.getResponseMessage();
}
} catch (Exception e) {
e.printStackTrace();
Log.e(TAG, "Exception in file Download:" + e.getMessage());
res = "false";
} finally {
try {
if (in != null) {
in.close();
}
if (fout != null) {
fout.close();
}
res = "true";
} catch (IOException e) {
e.printStackTrace();
res = "false";
}
}
return res;
}

Problems creating PDF from stream

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()

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