I am developing app like playstore in which user can download any app. i have many apps in my application that i got from my website through wp api v2. when we click on any of the available application detail opened and it have a download link. when we click on the link it goes to the browser but what i want is when we click on any of the apps downloading link downloading should start within my app with progress bar. i didn't found any appropriate solution yet on stack or anywhere.
Here is the screenshot attached for better understanding. arrow is pointing to the downloading link.
Try this code, you can put this on click of the link(textview)
private static void downloadFile(String url, File outputFile) {
try {
URL u = new URL(url);
URLConnection conn = u.openConnection();
int contentLength = conn.getContentLength();
DataInputStream stream = new DataInputStream(u.openStream());
byte[] buffer = new byte[contentLength];
stream.readFully(buffer);
stream.close();
DataOutputStream fos = new DataOutputStream(new FileOutputStream(outputFile));
fos.write(buffer);
fos.flush();
fos.close();
} catch(FileNotFoundException e) {
return; // swallow a 404
} catch (IOException e) {
return; // swallow a 404
}
}
you can use intent service to download the app.
Here is the code :
public class DownloadService extends IntentService {
File cacheDir;
public DownloadService() {
super("DownloadService");
}
#Override
public void onCreate() {
super.onCreate();
String tmpLocation =
Environment.getExternalStorageDirectory().getPath();
cacheDir = new File(tmpLocation);
if (!cacheDir.exists()) {
cacheDir.mkdirs();
}
}
#Override
protected void onHandleIntent(Intent intent) {
String remoteUrl = intent.getExtras().getString("url");
String location;
String filename =
remoteUrl.substring(
remoteUrl.lastIndexOf(File.separator) + 1);
File tmp = new File(cacheDir.getPath()
+ File.separator + filename);
if (tmp.exists()) {
location = tmp.getAbsolutePath();
stopSelf();
return;
}
try {
URL url = new URL(remoteUrl);
HttpURLConnection httpCon =
(HttpURLConnection) url.openConnection();
if (httpCon.getResponseCode() != 200)
throw new Exception("Failed to connect");
InputStream is = httpCon.getInputStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buf = new byte[1024];
int n = 0;
while (-1 != (n = is.read(buf))) {
out.write(buf, 0, n);
}
out.close();
is.close();
byte[] response = out.toByteArray();
FileOutputStream fos = new FileOutputStream(tmp);
fos.write(response);
fos.flush();
fos.close();
is.close();
location = tmp.getAbsolutePath();
} catch (Exception e) {
Log.e("Service", "Failed!", e);
}
}
}
Run this service with url passed in the intent
Related
I have to save pdf file using bytes from http response.
If file is small (about hundreds of bytes, less than 1k) everything is ok, but if file is too large I saw (using another app via Intent) all pages white (number of pages is correct).
I save the document in external storage and pass uri to intent.
This is my code to get file from server and save it to external storage:
public static Observable<Integer> getDocument(final String id, final String service, final String filename){
return Observable.create(new Observable.OnSubscribe<Integer>() {
#Override
public void call(Subscriber<? super Integer> subscriber) {
InputStream inputStream = null;
FileOutputStream outputStream = null;
OkHttpClient client = HypeHttpClientBuilder.getOkHttpClient(200); //timeout
RequestBody formBody = new FormEncodingBuilder()
.add("platform", HypeApplication.getDeviceType())
.add("function", service)
.add("pdfid",id)
.build();
Request requests = HttpRequestBuilder.getRequest(formBody);
try {
Response response = client.newCall(requests).execute();
inputStream = response.body().byteStream();
File dir = new File(Environment.getExternalStorageDirectory(),"Hype");
if (!dir.mkdirs()) {
Log.e(TAG, "Directory not created");
}
outputStream = new FileOutputStream(new File(dir, filename));
int totalCount = inputStream.available();
byte[] buffer = new byte[1024 * 1024];
int len;
int readLen = 0;
while ((len = inputStream.read(buffer)) != -1 ) {
//System.out.println("download loop " + Thread.currentThread().getName());
outputStream.write(buffer, 0, len);
readLen += len;
}
subscriber.onNext(readLen);
}catch (Exception e){
subscriber.onError(e);
}finally {
try {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.flush();
outputStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
subscriber.onCompleted();
}
});
}
and this is code to start another activity:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(FileProvider.getUriForFile(getActivity(),getActivity().getApplicationContext().getPackageName() + ".provider",f)
, "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(intent);
UPDATE
I tried to use a proxy to intercept http call.
So, I got file from proxy and file generated by my code and I compared them: there are some differences.
I got a simple solution using UrlConnection class.
URL url = new URL(URLSetting.getOldUrl());
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.setReadTimeout(10000);
conn.setConnectTimeout(15000);
conn.setRequestMethod("POST");
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestProperty("appversion","2.0.0");
conn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("platform", HypeApplication.getDeviceType())
.appendQueryParameter("function", service)
.appendQueryParameter("deviceid",HypeApplication.getDeviceId())
.appendQueryParameter("pdfid", id);
OutputStream os = conn.getOutputStream();
BufferedWriter writer = new BufferedWriter(
new OutputStreamWriter(os, "UTF-8"));
writer.write(builder.build().getEncodedQuery());
writer.flush();
writer.close();
os.close();
conn.connect();
inputStream = conn.getInputStream();
So, do you know if okHttp set as default encoding UTF-8?
I'm not sure what exactly is causing your problem, but you could try simplifying your code by using Okio API.
BufferedSource source = response.body().source();
Sink out = Okio.sink(outputFile);
try {
while (!source.exhausted()) {
Buffer buffer = source.buffer();
out.write(buffer, buffer.size());
}
} finally {
out.close();
}
See if that changes anything.
So I'm trying to download a PDF file using HttpURLConnection and I think I've done everything right with the input- and outputstreams, yet when I open the downloaded PDF file (using the built in File Manager in Android and/or ADB), or just inspect it by transferring it to OS X, it's completely empty and the size shows 0 bytes.
The site I'm trying to download the PDF from is:
http://www.pdf995.com/samples/pdf.pdf
Here's my code
public static void DownloadFile(final String fileURL, final File directory) {
Thread thread = new Thread(new Runnable(){
#Override
public void run() {
try {
try {
FileOutputStream f = new FileOutputStream(directory);
URL u = new URL(fileURL);
c = (HttpURLConnection) u.openConnection();
c.setRequestMethod("GET");
//c.setRequestProperty("Content-Type", "application/pdf");
//c.setDoOutput(true);
c.connect();
Log.d("debugz", Integer.toString(c.getContentLength()));
InputStream in = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = in.read(buffer)) > 0) {
f.write(buffer, 0, len1);
}
f.flush();
f.getFD().sync();
f.close();
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
}
public static String getPDF(String pdfurl) {
String extStorageDirectory = Environment.getExternalStorageDirectory()
.toString();
File folder = new File(extStorageDirectory, "schematisktscheman");
folder.mkdir();
File file = new File(folder, "schemainfo.pdf");
try {
file.createNewFile();
} catch (IOException e1) {
e1.printStackTrace();
}
DownloadFile(pdfurl, file);
return null; //added return
}
In my main activity:
SchedulePdfProcessor.getPDF("http://www.pdf995.com/samples/pdf.pdf");
sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + Environment.getExternalStorageDirectory() + "/schematisktscheman/schemainfo.pdf")));
EDIT: I ran the network code on the main thread, which threw an exception. Now creating a new thread for the downloading and it gets the example PDF (http://www.pdf995.com/samples/pdf.pdf) and puts its content in the file all fine.
Thanks to #greenapps!
First, replace:
f.close();
with:
f.flush();
f.getFD().sync();
f.close();
This ensures everything is written to disk before continuing.
Then, you need to use MediaScannerConnection and scanFile() to get the MediaStore to know about the updated file.
I ran the network code on the main thread, which threw an exception. Now creating a new thread for the downloading and it gets the example PDF (http://www.pdf995.com/samples/pdf.pdf) and puts its content in the file all fine.
Thread thread = new Thread(new Runnable(){
#Override
public void run() {
try {
try {
FileOutputStream f = new FileOutputStream(directory);
URL u = new URL(fileURL);
c = (HttpURLConnection) u.openConnection();
c.setRequestMethod("GET");
//c.setRequestProperty("Content-Type", "application/pdf");
//c.setDoOutput(true);
c.connect();
Log.d("debugz", Integer.toString(c.getContentLength()));
InputStream in = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = in.read(buffer)) > 0) {
f.write(buffer, 0, len1);
}
f.flush();
f.getFD().sync();
f.close();
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
I have a application that downloads and opens a pdf from a listview click listener.
A file downloads and save to my phone but it has a file size of 0 bytes therefore It can not open. I Used tutorial code from http://www.coderzheaven.com/2013/03/06/download-pdf-file-open-android-installed-pdf-reader/ Here is my code. Any help will be greatly appreciated.
public class OpenPdfActivity extends Activity {
TextView tv_loading;
String dest_file_path = "pdf-test.pdf";
int downloadedSize = 0, totalsize;
String download_file_url = "http://www.education.gov.yk.ca/pdf/pdf-test.pdf";
float per = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
tv_loading = new TextView(this);
setContentView(tv_loading);
tv_loading.setGravity(Gravity.CENTER);
tv_loading.setTypeface(null, Typeface.BOLD);
downloadAndOpenPDF();
}
void downloadAndOpenPDF() {
new Thread(new Runnable() {
public void run() {
Uri path = Uri.fromFile(downloadFile(download_file_url));
try {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(path, "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();
} catch (ActivityNotFoundException e) {
tv_loading
.setError("PDF Reader application is not installed in your device");
}
}
}).start();
}
File downloadFile(String dwnload_file_path) {
File file = null;
try {
URL url = new URL(dwnload_file_path);
HttpURLConnection urlConnection = (HttpURLConnection) url
.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
// connect
urlConnection.connect();
// set the path where we want to save the file
File SDCardRoot = Environment.getExternalStorageDirectory();
// create a new file, to save the downloaded file
file = new File(SDCardRoot, dest_file_path);
FileOutputStream fileOutput = new FileOutputStream(file);
// Stream used for reading the data from the internet
InputStream inputStream = urlConnection.getInputStream();
// this is the total size of the file which we are
// downloading
totalsize = urlConnection.getContentLength();
setText("Starting PDF download...");
// create a buffer...
byte[] buffer = new byte[1024 * 1024];
int bufferLength = 0;
while ((bufferLength = inputStream.read(buffer)) > 0) {
fileOutput.write(buffer, 0, bufferLength);
downloadedSize += bufferLength;
per = ((float) downloadedSize / totalsize) * 100;
setText("Total PDF File size : "
+ (totalsize / 1024)
+ " KB\n\nDownloading PDF " + (int) per
+ "% complete");
}
// close the output stream when complete //
fileOutput.close();
setText("Download Complete. Open PDF Application installed in the device.");
} catch (final MalformedURLException e) {
setTextError("Some error occured. Press back and try again.",
Color.RED);
} catch (final IOException e) {
setTextError("Some error occured. Press back and try again.",
Color.RED);
} catch (final Exception e) {
setTextError(
"Failed to download image. Please check your internet connection.",
Color.RED);
}
return file;
}
void setTextError(final String message, final int color) {
runOnUiThread(new Runnable() {
public void run() {
tv_loading.setTextColor(color);
tv_loading.setText(message);
}
});
}
void setText(final String txt) {
runOnUiThread(new Runnable() {
public void run() {
tv_loading.setText(txt);
}
});
}
}
A couple of things:
Maybe add a timeout?
Try to NOT check the content length for now.
Use BufferedOutputStream
Something like this:
FileOutputStream fos = new FileOutputStream(file);
BufferedOutputStream out = new BufferedOutputStream( fos);
try {
HttpURLConnection urlConnection = (HttpURLConnection) url
.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setReadTimeout( 15000);
urlConnection.connect();
try {
InputStream in = urlConnection.getInputStream();
byte[] buffer = new byte[1024 * 1024];
int len = 0;
while (( len = in.read( buffer)) > 0)
{
out.write( buffer, 0, len);
}
out.flush();
} finally {
fos.getFD(). sync();
out.close();
}
} catch (IOException eio) {
Log.e("Download Tag", "Exception in download", eio);
}
(Including the logcat may help to have a better idea of what's going on)
One possible issue is this :
fileOutput.close();
don't ensure that all bytes are written to the disk. If you try to read the file immediately after closing the stream, it's possible that the file is not totally written yet (especially because your buffer is big).
The solution is to request a sync after the close():
fileOutput.close();
fileOutput.getFD().sync();
similar question here
Using this code to download image from url in internal stroage. It working properly and showing image in emulator but When debugging on real device it gives empty.. Help me...
File fileWithinMyDir = getApplicationContext().getFilesDir();
downloadImage(url1, fileWithinMyDir.getAbsolutePath()+MODE_WORLD_READABLE + "/" +"image1.jpg");
public boolean downloadImage(String URL,String fileName){
try
{
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
URL url = new URL(URL);
File file = new File(fileName);
URLConnection ucon = url.openConnection();
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while ((current = bis.read()) != -1)
{
baf.append((byte) current);
}
FileOutputStream fos = new FileOutputStream(file,true);
fos.write(baf.toByteArray());
fos.close();
}
catch (IOException e) {
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
return true;
}
If your device is connected with USB cable run your App & remove device from USB cable and check it. I hop it will work.
And it will not work use the fallowing code
String serverURL1 = "enter your image url";
new imageFile().execute(serverURL1);
public class imageFile extends AsyncTask<String,Void,Void>
{
private Context context;
public void setContext(Context contextf)
{
context = contextf;
}
protected Void doInBackground(String... arg0)
{
try
{
URL url = new URL(arg0[0]);
HttpURLConnection c = (HttpURLConnection) url.openConnection();
c.setRequestMethod("GET");
c.connect();
File myFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath(),"SD card path");
FileOutputStream f = new FileOutputStream(myFile);
InputStream in = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ( (len1 = in.read(buffer)) > 0 )
{
f.write(buffer,0, len1);
}
f.close();
}
catch (Exception e)
{
Log.e("imageFile", "Update error! " + e.getMessage());
}
return null;
}}
//Animation class focus on windows button change
public void onWindowFocusChanged(boolean hasFocus)
{
super.onWindowFocusChanged(hasFocus);
if (hasFocus)
{
frameAnimation.start();
}
else
{
frameAnimation.stop();
}
}
I am using Dropbox in my project to get tiny url from dropbox which is like http://www.db.tt/xyzabc.
When I try to download the file in HTC My touch my code works fine, but if I try in Motorola Atrix it throws exception unknown host db.tt.
Actually first I have url like http://www.db.tt/xyzabc which is HTTP url I open it than I get exception and in exception I get actual url to file which contain file and is HTTPS url in exception. I start downloading file here is my code which work for me:
public static void fileUrl(String fAddress, String localFileName,
String destinationDir) {
OutputStream outStream = null;
URLConnection uCon = null;
InputStream is = null;
try {
URL url;
byte[] buf;
int ByteRead, ByteWritten = 0;
url = new URL(fAddress);
outStream = new BufferedOutputStream(new FileOutputStream(
destinationDir + localFileName));
try {
// Here i have "http://www.db.tt/xyzabc"
// after i hit url i get exception and in exception that
// FileNotFoundException at https://www.dropbox.com/abcxyz
// i get actual actual url i parse that exception and
//retrive https://www.dropbox.com/xyzabc(actual url)
// but in motorolla atrix instead of that url i get
// unknownhost exception "db.tt"
uCon = url.openConnection();
// uCon.connect();
is = uCon.getInputStream();
} catch (Exception e) {
url = new URL(e.getMessage().substring(
e.getMessage().indexOf("https"),
e.getMessage().length()));
outStream = new BufferedOutputStream(new FileOutputStream(
destinationDir + localFileName));
uCon = url.openConnection();
is = uCon.getInputStream();
}
buf = new byte[size];
while ((ByteRead = is.read(buf)) != -1) {
outStream.write(buf, 0, ByteRead);
ByteWritten += ByteRead;
}
System.out.println("Downloaded Successfully.");
System.out.println("File name:\"" + localFileName
+ "\"\nNo ofbytes :" + ByteWritten);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
is.close();
outStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
ok after few attempt i made it solve my self and here is the solution will be helpfull if someone got same problem it requires some error handling and modification according to need
After seeing class heirarchy of Connection i found that HttpsURLConnection is child of HttpURLConnection and HttpURLConnection is child of UrlConnection so i i used HTTPConnection instead of UrlConnection and as HttpsUrlConnection is concrete for HttpsUrlConnection it solved my problem
i continue iterating till i get Https url after redirect
public static void fileUrl(String fAddress, String localFileName,
String destinationDir) {
OutputStream outStream = null;
URLConnection uCon = null;
HttpURLConnection mHttpCon;
InputStream is = null;
try {
URL url;
byte[] buf;
int ByteRead, ByteWritten = 0;
url = new URL(fAddress);
outStream = new BufferedOutputStream(new FileOutputStream(
destinationDir + localFileName));
try {
mHttpCon = (HttpURLConnection) url.openConnection();
while (!url.toString().startsWith("https")) {
mHttpCon.getResponseCode();
url = mHttpCon.getURL();
mHttpCon = (HttpURLConnection) url.openConnection();
}
is = mHttpCon.getInputStream();
} catch (Exception e) {
e.printStackTrace();
// url = new URL(e.getMessage().substring(
// e.getMessage().indexOf("https"),
// e.getMessage().length()));
// outStream = new BufferedOutputStream(new FileOutputStream(
// destinationDir + localFileName));
//
// uCon = url.openConnection();
// is = uCon.getInputStream();
}
buf = new byte[size];
while ((ByteRead = is.read(buf)) != -1) {
outStream.write(buf, 0, ByteRead);
ByteWritten += ByteRead;
}
System.out.println("Downloaded Successfully.");
System.out.println("File name:\"" + localFileName
+ "\"\nNo ofbytes :" + ByteWritten);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
is.close();
outStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public static void fileDownload(String fAddress, String destinationDir) {
int slashIndex = fAddress.lastIndexOf('/');
int periodIndex = fAddress.lastIndexOf('.');
String fileName = fAddress.substring(slashIndex + 1);
if (periodIndex >= 1 && slashIndex >= 0
&& slashIndex < fAddress.length() - 1) {
fileUrl(fAddress, fileName, destinationDir);
} else {
System.err.println("path or file name.");
}
}
This answer works - to an extent. I have a similar solution here
There is still a problem with Dropbox short hyperlinks on Atrix. They redirect from http to https but NOT to the required file, instead I get a whole lot of html from inside Dropbox.