I am working on a login in application. I am trying to display progressDialog in my BackgroundWorker class which extends Async task. But as soon as I click on Login button, the progress dialog is shown just for a few seconds. Is there any possibility that signing process will last longer?
Snippets of the code
`public class BackgrroundWorker extends AsyncTask<String,Void,String>{
Context context;
AlertDialog alertDialog;
boolean correct;
public BackgrroundWorker(Context context){
this.context = context;
}
#Override
protected String doInBackground(String... params) {
String type = params[0];
String login_url = "random";
String register_url = "random";
if(type.equals("login")){
try {
String username = params[1];
String password = params[2];
URL url = new URL(login_url);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
httpURLConnection.setDoInput(true);
OutputStream outputStream = httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
String post_data = URLEncoder.encode("username","UTF-8") + "=" +URLEncoder.encode(username,"UTF-8")+ "&"
+URLEncoder.encode("password","UTF-8") + "=" +URLEncoder.encode(password,"UTF-8");
bufferedWriter.write(post_data);
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
InputStream inputStream = httpURLConnection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream,"iso-8859-1"));
String result = "";
String line = "";
correct = false;
while((line = bufferedReader.readLine()) != null){
result += line;
}
bufferedReader.close();
inputStream.close();
httpURLConnection.disconnect();
System.out.println(result);
if (result.equalsIgnoreCase("login success"))
correct=true;
return result;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(context, "Login",
"Please wait for a while.", true);
alertDialog = new AlertDialog.Builder(context).create();
alertDialog.setTitle("Login status");
}
#Override
protected void onPostExecute(String result) {
if(!result.equals("login success")) {
alertDialog.setMessage(result);
alertDialog.show();
}
progressDialog.dismiss();
}
#Override
protected void onProgressUpdate(Void... values) {
super.onProgressUpdate(values);
}
}
`
progressDialog.dismiss();
This statement causing dialog to disappear and you have set it without any condition inside
onPostExecute
If you want to show dialog for a long time place it inside Handler or CountDownTimer. You can also make it user interaction based like button click.
For example, if you want to dismiss dialog for 5 sec:
#Override
protected void onPostExecute(String result) {
if(!result.equals("login success")) {
alertDialog.setMessage(result);
alertDialog.show();
}
new CountDownTimer(5000, 1000) {
public void onTick(long millisUntilFinished) {
}
public void onFinish() {
progressDialog.dismiss();
}
}.start();
}
Is there any possibility that signing process will last longer?
(signing = signin)
There sure is. Imagine the device is being heavily throttled, the server is taking along time to respond, or stuck on a really really slow network (ex: 1g data network, or my local starbucks wifi that 100s for people use at the same time)
You can test this by loading your application on the android emulator and using the emulator console commands for netspeed and netdelay
The basics steps are something like :
telnet localhost 5554
network speed 2 1
The first number ("2"). is the upload speed (traffic from the device) in kilobytes per second
The second number ("1"), is the download speed (traffic to the device) in kilobytes per second
network netdelay 10000
Above, we set a 10 second delay/latency of the network
then on the device, perform the login
Full documentation to accomplish this is here and I recommend checking them out. Lots of great info : https://developer.android.com/studio/run/emulator-console.html
I also found this answer to be helpful:
https://stackoverflow.com/a/6236379/794088
Related
I'm having a very weird problem with AsyncTask which I use to download a zip file in my android application. It was working flawlessly until I decided to use strings.xml resource for every string linked to this task.
when I click on the download button inside my app, the progressbar of the AsyncTask shows for a second or less then dismisses itself and the task goes to the onPostExecute() state.
I tried debuging the app on my test device and there is no error about the task. I even added some stubs with Log.d tag, I've included the logcat results:
275-15524/xmc.androidexpert35.com.xtrememusicchecker D/ANDRO_ASYNC: path set
2019-04-04 20:19:22.484 15275-15524/xmc.androidexpert35.com.xtrememusicchecker D/ANDRO_ASYNC: Try block
2019-04-04 20:19:22.487 15275-15524/xmc.androidexpert35.com.xtrememusicchecker D/ANDRO_ASYNC: file url got
2019-04-04 20:19:22.490 15275-15524/xmc.androidexpert35.com.xtrememusicchecker D/ANDRO_ASYNC: opening connection
2019-04-04 20:19:22.515 495-528/? D/SurfaceFlinger: duplicate layer name: changing xmc.androidexpert35.com.xtrememusicchecker/xmc.androidexpert35.com.xtrememusicchecker.SettingsActivity to xmc.androidexpert35.com.xtrememusicchecker/xmc.androidexpert35.com.xtrememusicchecker.SettingsActivity#1
2019-04-04 20:19:22.585 495-794/? D/SurfaceFlinger: duplicate layer name: changing Surface(name=cafcbf6 xmc.androidexpert35.com.xtrememusicchecker/xmc.androidexpert35.com.xtrememusicchecker.SettingsActivity)/#0x3604cd - animation-leash to Surface(name=cafcbf6 xmc.androidexpert35.com.xtrememusicchecker/xmc.androidexpert35.com.xtrememusicchecker.SettingsActivity)/#0x3604cd - animation-leash#1
2019-04-04 20:19:22.614 15275-15275/xmc.androidexpert35.com.xtrememusicchecker I/ViewRootImpl: CPU Rendering VSync enable = true
2019-04-04 20:19:22.672 495-528/? W/SurfaceFlinger: Attempting to set client state on removed layer: xmc.androidexpert35.com.xtrememusicchecker/xmc.androidexpert35.com.xtrememusicchecker.SettingsActivity#1
2019-04-04 20:19:22.672 495-528/? W/SurfaceFlinger: Attempting to destroy on removed layer: xmc.androidexpert35.com.xtrememusicchecker/xmc.androidexpert35.com.xtrememusicchecker.SettingsActivity#1
2019-04-04 20:19:24.758 15275-15314/xmc.androidexpert35.com.xtrememusicchecker D/FA: Logging event (FE): user_engagement(_e), Bundle[{firebase_event_origin(_o)=auto, engagement_time_msec(_et)=3635, firebase_screen_class(_sc)=SettingsActivity, firebase_screen_id(_si)=-6495914915605520780}]
2019-04-04 20:19:26.125 829-3715/? W/NotificationService: Toast already killed. pkg=xmc.androidexpert35.com.xtrememusicchecker callback=android.app.ITransientNotification$Stub$Proxy#3b51651
This is my AsyncTask code, if anyone can help me find the issue? or suggest a useful debug solution to discover it?
Thanks, any help is very appreciated!
public class DownloadFile extends AsyncTask<String, String, String> {
private static String file_url;
private Context context;
private ProgressDialog dialog;
private String dialogString;
private File path;
private String xmpath;
private boolean canceled = false;
public DownloadFile(Context cxt) {
context = cxt;
dialog = new ProgressDialog(context);
}
#Override
protected void onPreExecute() {
dialog.setMessage(context.getString(R.string.xm_downloading));
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setCancelable(false);
dialog.setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(R.string.xm_cancel), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
path.delete();
canceled = true;
dialog.dismiss();
}
});
dialog.show();
super.onPreExecute();
}
#Override
protected String doInBackground(String... aurl) {
int count;
if (SettingsActivity.isMagisk){
file_url = "http://androidexpert35developer.altervista.org/Xtrememusic-versions/XTREMEMusic_MAGISK_OFICIAL_By_androidexpert35.zip";
path= new File(Environment.getExternalStorageDirectory() + "/XTREMEMusic_Download/XTREMEMusic_Magisk.zip");
}else{
file_url = "http://androidexpert35developer.altervista.org/Xtrememusic-versions/XTREMEMusic_OFFICIAL_By_androidexpert35.zip";
path = new File(Environment.getExternalStorageDirectory() + "/XTREMEMusic_Download/XTREMEMusic.zip");
Log.d("ANDRO_ASYNC","path set");
}
try {
Log.d("ANDRO_ASYNC","Try block");
URL url = new URL(file_url);
Log.d("ANDRO_ASYNC","file url got");
URLConnection conexion = url.openConnection();
Log.d("ANDRO_ASYNC","opening connection");
conexion.connect();
Log.d("ANDRO_ASYNC","Connected");
int lenghtOfFile = conexion.getContentLength();
InputStream is = url.openStream();
File testDirectory = new File(Environment.getExternalStorageDirectory() + "/XTREMEMusic_Download");
Log.d("ANDRO_ASYNC","making directory");
if (!testDirectory.exists()) {
testDirectory.mkdir();
}
FileOutputStream fos;
Log.d("ANDRO_ASYNC","Stream");
if(SettingsActivity.isMagisk) {
fos = new FileOutputStream(testDirectory + "/" + ("XTREMEMusic_Magisk") + ".zip");
Log.d("ANDRO_ASYNC","Downloading");
}else{
fos = new FileOutputStream(testDirectory + "/" + ("XTREMEMusic") + ".zip");
Log.d("ANDRO_ASYNC","Downloading");
}
byte data[] = new byte[1024];
long total = 0;
int progress = 0;
while ((count = is.read(data)) != -1) {
total += count;
int progress_temp = (int) total * 100 / lenghtOfFile;
publishProgress(""+ progress_temp);
if (progress_temp % 10 == 0 && progress != progress_temp) {
progress = progress_temp;
}
fos.write(data, 0, count);
}
is.close();
fos.close();
} catch (Exception e) {}
return null;
}
protected void onProgressUpdate(String... progress) {
Log.d("ANDRO_ASYNC",progress[0]);
dialog.setProgress(Integer.parseInt(progress[0]));
}
#Override
protected void onPostExecute(String unused) {
dialog.dismiss();
if(SettingsActivity.isInstall) {
installer();
}else if (canceled) {
Toast.makeText(context, R.string.xm_cancelled, Toast.LENGTH_LONG).show();
} else{
xmpath = path.toString();
Toast.makeText(context, context.getString(R.string.xm_downloaded, xmpath), Toast.LENGTH_LONG).show();
}
}
I am creating an app that is downloading a file then loads it onto an imageview but I am getting this error
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageBitmap(android.graphics.Bitmap)' on a null object reference
and this is my download code
class DownloadFileFromURL extends AsyncTask<String, String, String> {
// Show Progress bar before downloading Music
#Override
protected void onPreExecute() {
super.onPreExecute();
// Shows Progress Bar Dialog and then call doInBackground method
showDialog(progress_bar_type);
}
// Download File from Internet
#Override
protected String doInBackground(String... f_url) {
int count;
try {
URL url = new URL(f_url[0]);
URLConnection conection = url.openConnection();
conection.connect();
// Get Music file length
int lenghtOfFile = conection.getContentLength();
// input stream to read file - with 8k buffer
InputStream input = new BufferedInputStream(url.openStream(),10*1024);
// Output stream to write file in SD card
int imageNr = sharedPreferences.getInt("ImageNr", 1);
OutputStream output = new FileOutputStream(getApplicationInfo().dataDir+"/files/"+imageNr+".jpg");
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
output.write(data, 0, count);
total += count;
// Publish the progress which triggers onProgressUpdate method
publishProgress("" + (total));
// Write data to file
}
// Flush output
output.flush();
// Close streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
// While Downloading Music File
protected void onProgressUpdate(String... progress) {
// Set progress percentage
prgDialog.setProgress(Integer.parseInt(progress[0]));
}
// Once File is downloaded
#Override
protected void onPostExecute(String file_url) {
// Dismiss the dialog after the Music file was downloaded
dismissDialog(progress_bar_type);
int imageNr = sharedPreferences.getInt("ImageNr", 1);
File imgFile = new File(getApplicationInfo().dataDir+"/files/"+imageNr+".jpg");
imageNr++;
SharedPreferences.Editor editorsave = sharedPreferences.edit();
editorsave.putInt("ImageNr", imageNr);
editorsave.apply();
if(imgFile.exists()){
Toast.makeText(getApplicationContext(), "Bild laddad!", Toast.LENGTH_LONG).show();
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
imageView.setImageBitmap(myBitmap);
}else{
Toast.makeText(getApplicationContext(), "Bild ej hittad!", Toast.LENGTH_LONG).show();
}
// Do stuff here
}
}
yeah it uses some deprecated code but this is working for me in my other application, though I am not using bitmap in that one but the AsyncTask works.
your imageViewis null
to stay way from the exception itself
if(imgFile.exists() && imageView != null) {
....
check your imageView reference assignment. It seems imageView reference is not assigned properly, hence returns null
For starters i'm an Android newbie. I have an android application that records audio for 12 seconds to a raw file and then I use lame to convert it to the final file "mezzo.mp3". The application should then upload the file to a server. However, it seems the code never executes to the upload part. Here is my code.
MainActivity.java
class UploadFileTask extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... voids) {
String responseString = "";
try {
String url = "http://178.62.209.46:8000/api/tag/";
File track = new File(Environment.getExternalStorageDirectory(), "mezzo.mp3");
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
MultipartEntityBuilder reqEntity = MultipartEntityBuilder.create();
reqEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
//InputStream inputStream = new ;
reqEntity.addBinaryBody("track", track);
final HttpEntity myEntity = reqEntity.build();
httppost.setEntity(myEntity);
HttpResponse response = httpclient.execute(httppost);
//process response
responseString = new BasicResponseHandler().handleResponse(response);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return responseString;
}
protected void onPostExecute(String responseString){
Toast.makeText(getApplicationContext(), responseString, Toast.LENGTH_LONG).show();
}
}
and here is the timer and the UploadFileTask invocation:
Button startButton = (Button) findViewById(R.id.StartButton);
startButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mRecMicToMp3.start();
CountDownTimer countDowntimer = new CountDownTimer(12000, 1000) {
public void onTick(long millisUntilFinished) {
}
public void onFinish() {
mRecMicToMp3.stop();
Toast.makeText(getApplicationContext(), "Stopped recording Automatically ", Toast.LENGTH_LONG).show();
}};countDowntimer.start();
}
});
new UploadFileTask().execute();
The timer runs okay and the "Stopped recording Automatically " toast shows. However, it seems new UploadFileTask().execute();never runs.
What mistake i'm I making??
You posted way to much code. You are supposed to post only relevant code. That in onClick would have been sufficient.
You have a NetworkOnMainThreadException. This will also be clearly visible in the LogCat. You have to put the 'internet code' in an AsyncTask or Thread.
Update: Hmmmm... mayby i talked to soon. Honestly i do not know if code in 'onFinish' is executed on the main thread. But if the Toast comes through it is. Please look in the LogCat for real errors.
You are starting your asynctask at the moment you install an onclicklistener. So even before the user has clicked. You should start it when the recording is done. Place that line directly after the toast that tells that the recording is stopped.
I getting issue while downloading a PDF file on click of button click in webview.
File is downloaded but the file is partly downloaded that's why i am getting below error
"The document cannot be opened because it is not a valid PDF document"
Below is Asyncetask activity of my to download file:
public class DownloadPDFTask extends AsyncTask<String, Void, Integer>
{
protected ProgressDialog mWorkingDialog; // progress dialog
protected String mFileName; // downloaded file
protected String mError; // for errors
#Override
protected Integer doInBackground(String... urls)
{
String filename = "";
String str[] = urls[2].split(";");
String st[] =str[1].split("=");
filename = st[1];
String extStorageDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).toString();
File myDir = new File(extStorageDirectory, "NCR");
File file = new File(extStorageDirectory+"/NCR/"+filename);
// create the directory if it does not exist
if (!myDir.exists())
myDir.mkdirs();
if (file.exists()) {
System.out.println("INSIDE FILE EXIST");
file.delete();
}
try
{
byte[] dataBuffer = new byte[4096];
int nRead = 0;
mFileName = filename;
System.out.println("mFileName<><><> " +mFileName);
// download URL and store to strFileName
// connection to url
java.net.URL urlReport = new java.net.URL(urls[0]);
URLConnection urlConn = urlReport.openConnection();
urlConn.setRequestProperty("User-Agent", urls[1]);
urlConn.setRequestProperty("Content-Disposition", urls[2]);
urlConn.setRequestProperty("Content-Type", "application/pdf");
urlConn.setRequestProperty("Accept", "*/*");
InputStream streamInput = urlReport.openStream();
BufferedInputStream bufferedStreamInput = new BufferedInputStream(streamInput,8192);
FileOutputStream outputStream = new FileOutputStream(extStorageDirectory+"/NCR/"+mFileName);
while ((nRead = bufferedStreamInput.read(dataBuffer)) > 0)
outputStream.write(dataBuffer, 0, nRead);
streamInput.close();
outputStream.close();
// displayPdf(mFileName);
}
catch (Exception e)
{
Log.e("myApp", e.getMessage());
mError = e.getMessage();
return (1);
}
return (0);
}
#Override
protected void onPreExecute()
{
// show "Downloading, Please Wait" dialog
mWorkingDialog = ProgressDialog.show(context, "", "Downloading PDF Document, Please Wait...", true);
return;
}
#Override
protected void onPostExecute (Integer result)
{
if (mWorkingDialog != null)
{
mWorkingDialog.dismiss();
mWorkingDialog = null;
}
switch (result)
{
case 0: // a URL
try
{
displayPdf(mFileName);
}
catch (ActivityNotFoundException e)
{
Toast.makeText(context, "No PDF Viewer Installed", Toast.LENGTH_LONG).show();
}
break;
case 1: // Error
Toast.makeText(context, mError, Toast.LENGTH_LONG).show();
break;
}
}
}
Friends I am stuck on this, Please help me out.
Hope this will help you. I tested this code and this is working fine.
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
int count;
try{
URL url=new URL(params[0]);
URLConnection connection=url.openConnection();
connection.connect();
//getting file length
long lengthOfFile=connection.getContentLength();
//input stream to read file with 8k buffer
InputStream input=new BufferedInputStream(url.openStream(),8192);
//out stream to write file
OutputStream output=new FileOutputStream(Environment.getExternalStorageDirectory()+"/Download/Test/software_testing.pdf");
byte data[]= new byte[1024];
long total =0;
while ((count = input.read(data)) != -1){
if(isCancelled())
return null;
total +=count;
//publishing the progress
//After this onProgressUpdate will be called
if(lengthOfFile > 0){
//System.out.println((int)((total*100)/lengthOfFile)+"First Line");
//Call onProgressUpdate() for display status
publishProgress((int)((total*100)/lengthOfFile));
}
//writing data to file
output.write(data,0,count);
}
//flushing output
output.flush();
//closing stream
output.close();
input.close();
}catch(Exception e){
Log.e("Error", e.getMessage());
System.out.println("Exception :"+e.getMessage());
}
return null;
}
EDITED:
Extend your class from AsyncTask<String, Integer, String> and override its' methods.
`
onPreExecute() used to do process before start the download.
doInBackground(String... params) used to do the process while
downloading the file. The above code is for this method.
onProgressUpdate(Integer... progress) used to do setting the
progress bar according to the current download percentage. Once you use publishProgress (), this method will invoke.
onPostExecute(String file_url) This method can used to dismiss the
dislog after the file was downloaded.
So what you have to do is set your progress bar to update according to the downloading percentage inside onProgressUpdate (Integer... progress). You can use setProgress() method for that.
I hope now you understand the process well :)
This might not be an issue, but your while loop isn't correct:
while ((nRead = bufferedStreamInput.read(dataBuffer)) > 0)
outputStream.write(dataBuffer, 0, nRead);
The BufferedInputStream.read() returns a -1 when it reaches the end of the stream.
Rather, your terminating condition should be:
while ((nRead = bufferedStreamInput.read(dataBuffer)) != -1)
outputStream.write(dataBuffer, 0, nRead);
I hope this helps.
What I would like to do is give my app the ability to download my mp3 of my server. So far I have the download mp3 into a audio file working but it's very finicky and cannot be disturbed in order for it to work properly. That being said I would love to have a progress dialog pop up that cannot be canceled so the user can't interrupt the progress while downloading the file to the folder in the background. After reading it seemed that AsyncTask would be the best way to do this but I cannot get it to work. Below is one of the buttons from my code.
public class music extends Activity {
public static int mProgress = 0;
static String filename;
MediaPlayer buttonclicker;
static Toast msg;
public static int totalSize = 0;
public ProgressDialog dialog;
public static boolean isFinished;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.music);
buttonclicker = MediaPlayer.create(this, R.raw.button );
Button boomFullDownload = (Button) findViewById(R.id.boomfull);
boomFullDownload.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
buttonclicker.start();
filename = "boomboom.mp3";
new downloadPumphouseShow().execute(filename);
}
class downloadPumphouseShow extends AsyncTask<String , Void, Void> {
ProgressDialog dialog;
Toast msg;
protected void onPreExecute (){
dialog = new ProgressDialog(context);
msg = Toast.makeText(context, " File Exist ", Toast.LENGTH_LONG);
msg.setGravity(Gravity.CENTER, msg.getXOffset() / 2, msg.getYOffset() / 2);
dialog.setMessage("Please Wait Loading");
dialog.setCancelable(false);
dialog.show();
}
}
});
protected void onPostExecute(Void result) {
dialog.hide();
dialog.dismiss();
}
protected Void doInBackground(String... params) {
String filename = params[0];
try {
//set the download URL, a url that points to a file on the internet
//this is the file to be downloaded
URL url = new URL("http://lepumphouse.com/media/" + filename );
//create the new connection
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
//set up some things on the connection
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
//and connect!
urlConnection.connect();
//set the path where we want to save the file
//in this case, going to save it on the root directory of the
//sd card.
File Music = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC + "/Pumphouse/Party Cake");
//create a new file, specifying the path, and the filename
if(Music.exists())
msg.show();
else
Music.mkdirs();
//which we want to save the file as.
File file = new File(Music, filename);
//this will be used to write the downloaded data into the file we created
FileOutputStream fileOutput = new FileOutputStream(file);
//this will be used in reading the data from the internet
InputStream inputStream = urlConnection.getInputStream();
//this is the total size of the file
int totalSize = urlConnection.getContentLength();
//variable to store total downloaded bytes
int mProgress = 0;
//create a buffer...
byte[] buffer = new byte[1024];
int bufferLength = 0; //used to store a temporary size of the buffer
//now, read through the input buffer and write the contents to the file
while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
//add the data in the buffer to the file in the file output stream (the file on the sd card
fileOutput.write(buffer, 0, bufferLength);
//add up the size so we know how much is downloaded
mProgress += bufferLength;
//this is where you would do something to report the pr0gress, like this maybe
}
//close the output stream when done
// progressDialog.dismiss();
fileOutput.close();
//catch some possible errors...
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
}
So if I stripped out all the code dealing with asynctask it works it's just extremely un-user friendly but the files do download. When I try to add the progress dialog and background task it quits on me. I have a feeling it has to do with the parameters.
protected void onPreExecute() {
dialog=ProgressDialog.show(mContext, "", "Fetching book oversight");
msg = Toast.makeText(context, " File Exist ", Toast.LENGTH_LONG).show;
super.onPreExecute();
}
protected void onPostExecute(Void result) {
if(dialog!=null)
{
dialog.dismiss();
}
}
Try this, a alternate way to show Dialog
Just a quick scan, I don't think you should be calling msg.show(); from the background thread.