In my application, I have an expandablelistview and I want to open a PDF downloaded from the internet when I click on a specific child. The problem is that the pdf file (Read.pdf) is always empty, meaning that the download is not working.
Downloader Class:
public class Downloader {
public static void DownloadFile(String fileURL, File directory) {
try {
FileOutputStream f = new FileOutputStream(directory);
URL u = new URL(fileURL);
HttpURLConnection c = (HttpURLConnection) u.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
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) {
e.printStackTrace();
}
}
Part of the Activity:
private void registerClick() {
expListView.setOnChildClickListener(new OnChildClickListener() {
#Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
if ((groupPosition == 0) && (childPosition == 0)){
File file = new File(Environment.getExternalStorageDirectory()+File.separator+"IAVE", "Read.pdf");
try {
file.createNewFile();
} catch (IOException e1) {
e1.printStackTrace();
}
Downloader.DownloadFile("https://www.cp.pt/StaticFiles/Passageiros/1_horarios/horarios/PDF/lx/linha_cascais.pdf", file);
AbrirPDF.showPdf();
} else {
}
return false;
}
});
}
I think the OpenPDF (AbrirPDF) doesn't have any problem, but I will post it...
public class AbrirPDF {
public static void showPdf()
{
File file = new File(Environment.getExternalStorageDirectory()+File.separator+"IAVE/Read.pdf");
PackageManager packageManager = ContextGetter.getAppContext().getPackageManager();
Intent testIntent = new Intent(Intent.ACTION_VIEW);
testIntent.setType("application/pdf");
List list = packageManager.queryIntentActivities(testIntent, PackageManager.MATCH_DEFAULT_ONLY);
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/pdf");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
ContextGetter.getAppContext().startActivity(intent);
}
}
Thank you.
Ideally, your download should happen in a separate thread to avoid locking your app.
Here is an example that also includes a progress bar.
public class MainActivity extends Activity {
private ProgressDialog pDialog;
public static final int progress_bar_type = 0;
private static String file_url = "https://www.cp.pt/StaticFiles/Passageiros/1_horarios/horarios/PDF/lx/linha_cascais.pdf";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new DownloadFileFromURL().execute(file_url);
}
#Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case progress_bar_type: // we set this to 0
pDialog = new ProgressDialog(this);
pDialog.setMessage("Downloading file. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setMax(100);
pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pDialog.setCancelable(true);
pDialog.show();
return pDialog;
default:
return null;
}
}
class DownloadFileFromURL extends AsyncTask<String, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(progress_bar_type);
}
#Override
protected String doInBackground(String... f_url) {
int count;
try {
URL url = new URL(f_url[0]);
URLConnection conection = url.openConnection();
conection.connect();
// this will be useful so that you can show a tipical 0-100%
// progress bar
int lenghtOfFile = conection.getContentLength();
// download the file
InputStream input = new BufferedInputStream(url.openStream(),
8192);
// Output stream
OutputStream output = new FileOutputStream(Environment
.getExternalStorageDirectory().toString()
+ "/2011.kml");
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
publishProgress("" + (int) ((total * 100) / lenghtOfFile));
// writing data to file
output.write(data, 0, count);
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
protected void onProgressUpdate(String... progress) {
// setting progress percentage
pDialog.setProgress(Integer.parseInt(progress[0]));
}
#Override
protected void onPostExecute(String file_url) {
// dismiss the dialog after the file was downloaded
dismissDialog(progress_bar_type);
}
}
}
Related
I am developing app using camera on fragment,so for camera I have used this library https://natario1.github.io/CameraView/home because I am using watermarks in camera, now I want to save pictures and videos to gallery, for pictures I have done with below code, for video I done research but not get a solution, for pictures this library is giving bitmap so pictures are saving perfectly but for video I can't figure out kindly help me.
Thank you
public class VideoPreviewActivity extends AppCompatActivity {
private VideoView videoView;
private static VideoResult videoResult;
private Button btnSaveVideo;
public static void setVideoResult(#Nullable VideoResult result) {
videoResult = result;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_video_preview);
final VideoResult result = videoResult;
if (result == null) {
finish();
return;
}
btnSaveVideo = findViewById(R.id.save_video);
videoView = findViewById(R.id.video);
videoView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
playVideo();
}
});
AspectRatio ratio = AspectRatio.of(result.getSize());
MediaController controller = new MediaController(this);
controller.setAnchorView(videoView);
controller.setMediaPlayer(videoView);
videoView.setMediaController(controller);
videoView.setVideoURI(Uri.fromFile(result.getFile()));
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
ViewGroup.LayoutParams lp = videoView.getLayoutParams();
float videoWidth = mp.getVideoWidth();
float videoHeight = mp.getVideoHeight();
float viewWidth = videoView.getWidth();
lp.height = (int) (viewWidth * (videoHeight / videoWidth));
videoView.setLayoutParams(lp);
playVideo();
if (result.isSnapshot()) {
// Log the real size for debugging reason.
Log.e("VideoPreview", "The video full size is " + videoWidth + "x" + videoHeight);
}
}
});
//Click this button to save video
btnSaveVideo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//Calling 1st Method but not working
//SaveVideo(videoResult.getFile().toString());
//2nd method calling but still not working
saveVideoToInternalStorage(videoResult.getFile().toString());
}
});
}
void playVideo() {
if (!videoView.isPlaying()) {
videoView.start();
}
}
#Override
protected void onDestroy() {
super.onDestroy();
if (!isChangingConfigurations()) {
setVideoResult(null);
}
}
//first method which I tried but not working
private void SaveVideo(Uri f) {
//I don't know what data type I have to pass in the methods parameters
String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES).getAbsolutePath();
File myDir = new File(root + "/Push Videos");
if (!myDir.exists()) {
myDir.mkdirs();
}
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "Video-"+ n +".mp4";
File file = new File (myDir, fname);
if (file.exists ())
file.delete ();
try {
FileOutputStream out = new FileOutputStream(file);
Toast.makeText(VideoPreviewActivity.this, "PUSH Video Saved", Toast.LENGTH_LONG).show();
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
//Tried this 2nd method but it is also not giving a desired result
//For saving Video...
private void saveVideoToInternalStorage (String filePath) {
File newfile;
try {
File currentFile = new File(filePath);
String fileName = currentFile.getName();
ContextWrapper cw = new ContextWrapper(getApplicationContext());
File directory = cw.getDir("videoDir", Context.MODE_PRIVATE);
newfile = new File(directory.getAbsolutePath(), fileName);
if(currentFile.exists()){
InputStream in = new FileInputStream(currentFile);
OutputStream out = new FileOutputStream(newfile);
// Copy the bits from instream to outstream
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
scanner(filePath);
in.close();
out.close();
Log.v("", "Video file saved successfully.");
Toast.makeText(this, "Push Video Saved TO Gallery", Toast.LENGTH_SHORT).show();
}else{
Log.v("", "Video saving failed. Source file missing.");
}
} catch (Exception e) {
Log.d("Err ", "EXS " + e.getMessage());
e.printStackTrace();
}
}
}
I work with a RecyclerView that looks like this.
I use an AsyncTask for managing the downloads. I use this button so that each item in the list of cards can have the progress of the respective download. I am not sure how to report the status of the download to the RecyclerView. How do I get this to post updates to the cards?
The async downloader code is this
public class DownloadFileFromURL extends AsyncTask<String, String, String> {
private final String resourceType;
public DownloadFileFromURL(String resourceType) {
super();
this.resourceType = resourceType;
// do stuff
}
#Override
protected void onPreExecute() {
super.onPreExecute();
//showDialog(progress_bar_type);
}
protected void onProgressUpdate(String... progress) {
// setting progress percentage
// pDialog.setProgress(Integer.parseInt(progress[0]));
}
#Override
protected String doInBackground(String... f_url) {
int count;
try {
URL url = new URL(f_url[0]);
String fileName = url.toString().substring(url.toString().lastIndexOf('/') + 1);
URLConnection connection = url.openConnection();
connection.connect();
// this will be useful so that you can show a tipical 0-100%
// progress bar
int lengthOfFile = connection.getContentLength();
Log.d("lengthofFile", String.valueOf(lengthOfFile));
// download the file
InputStream input = new BufferedInputStream(url.openStream(),
8192);
String destinationDirectory ="";
if(resourceType.equals(SyncUtil.IMAGE_ZIP)) {
destinationDirectory= SyncUtil.TMP;
}
if(resourceType.equals(SyncUtil.VIDEOFILE)) {
destinationDirectory = SyncUtil.VIDEO;
}
File mFolder = new File(AppController.root.toString() + File.separator+destinationDirectory);
if (!mFolder.exists()) {
mFolder.mkdir();
}
OutputStream output = new FileOutputStream(AppController.root.toString()+File.separator+destinationDirectory+File.separator
+ fileName);
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
publishProgress("" + (int) ((total * 100) / lengthOfFile));
output.write(data, 0, count);
}
output.flush();
// closing streams
output.close();
input.close();
if(resourceType.equals(SyncUtil.IMAGE_ZIP)) {
BusProvider.getInstance().post(new ZipDownloadComplete(fileName,resourceType));
}
if(resourceType.equals(SyncUtil.VIDEOFILE)) {
// BusProvider.getInstance().post(new VideoDownloadComplete(fileName));
}
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
#Override
protected void onPostExecute(String file_url) {
}
}
The RecyclerView adapter is here
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
final Video video = videosList.get(position);
holder.title.setText(video.getTitle());
holder.description.setText(video.getDescription());
holder.downloadButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url ="http://"+ AppController.serverAddr +":"+AppController.port +"/video/"+video.getUrl()+video.getExtension();
DownloadFileFromURL downloadFileFromURL = new DownloadFileFromURL(SyncUtil.VIDEOFILE);
downloadFileFromURL.execute(url,video.getTitle(),video.getDescription());
}
});
holder.bind(video,listener);
}
Though its not a very good solution but in my case I got that working. I'm just sharing my thoughts with some sample code snippet.
I assume you're showing the download progress with a ProgressBar. So take an instance of the ProgressBar in your adapter and pass the reference to your AsyncTask.
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
final Video video = videosList.get(position);
holder.title.setText(video.getTitle());
holder.description.setText(video.getDescription());
holder.downloadButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url ="http://"+ AppController.serverAddr +":"+AppController.port +"/video/"+video.getUrl()+video.getExtension();
// Pass the progressBar here. You might have to set it as a final variable.
DownloadFileFromURL downloadFileFromURL = new DownloadFileFromURL(SyncUtil.VIDEOFILE, holder.progressBar);
downloadFileFromURL.execute(url,video.getTitle(),video.getDescription());
}
});
holder.bind(video,listener);
}
Now modify your constructor of the AsyncTask like this.
public DownloadFileFromURL(... , ProgressBar mProgressbar) {
this.mProgressbar = mProgressbar;
this.mProgressbar.setProgress(0);
this.mProgressbar.setMax(100);
}
Add onProgressUpdate in your AsyncTask
protected void onProgressUpdate(Integer... values) {
mProgressbar.setProgress(values[0]);
}
Now in your doInBackground calculate the file size and publish the progress after a certain amount of file is downloaded.
protected void doInBackground() throws IOException {
try {
// Establish connection
URL url = new URL(fileUrl);
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
connection.setDoInput(true);
connection.connect();
final String contentLengthStr = connection.getHeaderField("content-length");
InputStream input = connection.getInputStream();
String data1 = f.getPath();
FileOutputStream stream = new FileOutputStream(data1);
byte data[] = new byte[4096];
int count;
int progressCount = 0;
while ((count = input.read(data)) != -1) {
stream.write(data, 0, count);
progressCount = progressCount + count;
int progress = (int) (((progressCount * 1.0f) / Integer.parseInt(contentLengthStr)) * 10000);
// Publish your progress here
publishProgress(progress);
}
stream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
Note:
Passing the original reference of your views is not a very good solution. I would rather set a BroadcastReceiver in my activity and would publish a broadcast with the specific item position in the publishProgress function. So that when the broadcast is received in the main activity, I could call notifyDatasetChanged to take progress effect in the list.
I need to program my apps to download the video first from server and save into sdcard before playing it. Where can i get this tutorial?
Current now, I stream the video, but i don't want this way.
final VideoView videoView = (VideoView)rootView.findViewById(R.id.styleVideo);
videoView.setVideoURI(Uri.parse(videoPath));
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
videoView.setBackground(mScarfBuffer.getDrawable(position));
}
});
videoView.setMediaController(new MediaController(rootView.getContext()));
videoView.requestFocus();
videoView.start();
Use the following to download the file:
void downloadFile(){
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
String SDCardRoot= Environment.getExternalStorageDirectory() ;
//create a new file, to save the downloaded file
File file = new File(SDCardRoot,"mydownloadmovie.mp4");
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();
//create a buffer...
byte[] buffer = new byte[1024];
int bufferLength = 0;
while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
fileOutput.write(buffer, 0, bufferLength);
downloadedSize += bufferLength;
}
//close the output stream when complete //
fileOutput.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
catch (Exception e) {
}
}
Don't forget to wrap inside an AsyncTask.
Then use MediaPlayer to play your downloaded file( now local file).
this the code download and play the video on completed
public class Testing extends AppCompatActivity {
VideoView videoView;
MediaController mediaController;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_testing);
videoView = (VideoView) findViewById(R.id.vid258);
mediaController = new MediaController(this);
// Enter Your Server Link
final DownloadTask downloadTask = new DownloadTask(Testing.this);
downloadTask.execute("http://codechair.com/video/1496139752333.mp4");
});
}
private class DownloadTask extends AsyncTask<String, Integer, String> {
private Context context;
private PowerManager.WakeLock mWakeLock;
public DownloadTask(Context context) {
this.context = context;
}
#Override
protected String doInBackground(String... sUrl) {
InputStream input = null;
OutputStream output = null;
HttpURLConnection connection = null;
try {
URL url = new URL(sUrl[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
// expect HTTP 200 OK, so we don't mistakenly save error report
// instead of the file
if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
return "Server returned HTTP " + connection.getResponseCode()
+ " " + connection.getResponseMessage();
}
// this will be useful to display download percentage
// might be -1: server did not report the length
int fileLength = connection.getContentLength();
// download the file
input = connection.getInputStream();
output = new FileOutputStream("/sdcard/file_name.mp4");
byte data[] = new byte[4096];
Log.d("Orignalvalu1",String.valueOf(new byte[4096]));
long total = 0;
int count;
while ((count = input.read(data)) != -1) {
Log.d("Orignalvalu1",String.valueOf(input.read(data)));
// allow canceling with back button
if (isCancelled()) {
input.close();
return null;
}
total += count;
Log.d("Orignalvalu2",String.valueOf(total));
// publishing the progress....
if (fileLength > 0) // only if total length is known
publishProgress((int) (total * 100 / fileLength));
output.write(data, 0, count);
}
} catch (Exception e) {
return e.toString();
} finally {
try {
if (output != null)
output.close();
if (input != null)
input.close();
} catch (IOException ignored) {
}
if (connection != null)
connection.disconnect();
}
return null;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
// take CPU lock to prevent CPU from going off if the user
// presses the power button during download
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
getClass().getName());
mWakeLock.acquire();
mProgressDialog.show();
}
#Override
protected void onProgressUpdate(Integer... progress) {
super.onProgressUpdate(progress);
// if we get here, length is known, now set indeterminate to false
mProgressDialog.setIndeterminate(false);
mProgressDialog.setMax(100);
mProgressDialog.setProgress(progress[0]);
}
#Override
protected void onPostExecute(String result) {
mWakeLock.release();
mProgressDialog.dismiss();
if (result != null)
Toast.makeText(context,"Download error: "+result, Toast.LENGTH_LONG).show();
else
Toast.makeText(context,"File downloaded", Toast.LENGTH_SHORT).show();
videoView.setVideoPath("/storage/emulated/0/file_name.mp4");
videoView.setMediaController(mediaController);
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.setLooping(true);
}
});
videoView.requestFocus();
videoView.start();
}
}
I'm trying to download a file using an AsyncTask on Android. I want to display a ProgressDialog which should have a progress bar to show the status of the download. I'm using the onProgressUpdate() function for that and implemented a call to publishProgress() in my doInBackground() function. However, the progress dialog only pops up after downloading the file. My code:
protected Long doInBackground(URL...urls) {
for (int i = 0; i < urls.length; i++) {
url = urls[i];
try {
URLConnection conn = url.openConnection();
conn.connect();
totalSize = conn.getContentLength();
BufferedInputStream bis = new BufferedInputStream(url.openStream());
FileOutputStream fos = new FileOutputStream(Environment.getExternalStorageDirectory().getPath() + "/forvo_temp.mp3");
BufferedOutputStream bos = new BufferedOutputStream(fos,1024);
byte [] data = new byte[1024];
int x=0; int c=0;
while((x=bis.read(data,0,1024))>=0){
bos.write(data,0,x);
c += 1024;
publishProgress(c);
}
} catch (Exception e) {
e.printStackTrace();
}
}
return 0L; // Don't know what to do with this
}
protected void onProgressUpdate(Integer...args) {
pd = ProgressDialog.show(context, "Downloading...", "Downloading...", true, false);
pd.setProgress(args[0] / totalSize);
}
I guess the whole file is downloaded when I call new BufferedInputStream(url.openStream()). How can I monitor the download progress?
Wrap URL input stream with you own InputStream that just reads bytes and "monitors" the status, e.g. sends notifications.
It is simple: InputStream is an abstract class with only one abstract method:
public abstract int read() throws IOException;
In your case it should read bytes from stream that it wraps.
public class NotifcationInputStream extends InputStream {
private InputStream in;
private int count;
private Collection<ByteListener> listeners = new ArrayList<ByteListener>();
NotificationInputStream(InputStream in) {
this.in = in;
}
public int read() throws IOException {
int b = in.read();
byteReceived(b);
return b;
}
public void addListener(ByteListener listener) {
listeners.add(listener);
}
private void byteReceived(int b) {
for (ByteListener l : listeners) {
l.byteReceived(b, ++count);
}
}
}
public interface ByteListener extends EventListener {
public void byteReceived(int b, int count);
}
The problem here is how to show the process bar: you have to know total number of bytes. You can get it from HTTP header content-length if your resource is static. Otherwise you need appropriate server support or heuristics.
This code is useful showing download items totol size and downloaded size.
private static final int DOWNLOAD_ONPROGRESS = 1;
#Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DOWNLOAD_ONPROGRESS:
progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Downloading latest ...");
progressDialog.setCancelable(true);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
try {
progressDialog.show();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return progressDialog;
default:
return null;
}
}
You can use AsyncTask for downloading the version in background.
private class DownLoad extends AsyncTask<String, String, String> {
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
logger.info("LoadDataAsync onPreExecute");
showDialog(DOWNLOAD_ONPROGRESS);
}
#Override
protected String doInBackground(String... aurl) {
int count = 0;
try {
URL url = new URL(aurl[0]);
URLConnection urlConnection = url.openConnection();
urlConnection.connect();
int contentlength = urlConnection.getContentLength();
progressDialog.setMax(contentlength);
String PATH = "";
File file = null;
if (android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED)) {
PATH = Environment.getExternalStorageDirectory()
+ "/download/";
file = new File(PATH);
file.mkdirs();
File outputFile = new File(file, "telfaz.apk");
OutputStream fos = new FileOutputStream(outputFile);
InputStream is = new BufferedInputStream(url.openStream());
byte[] buffer = new byte[1024];
long len1 = 0;
while ((count = is.read(buffer)) != -1
&& !downLoad.isCancelled()) {
len1 += count;
publishProgress("" + len1);
fos.write(buffer, 0, count);
}
fos.flush();
fos.close();
is.close();
}
logger.info("Success -> file downloaded succesfully. returning 'success' code");
return Util.APK_DOWNLOAD_SUCCESS;
} catch (IOException e) {
logger.error("Exception in update process : "
+ Util.getStackTrace(e));
}
logger.info("Failed -> file download failed. returning 'error' code");
return Util.APK_DOWNLOAD_FAILED;
}
#Override
protected void onPostExecute(String result) {
logger.info("on DownLoad onPostExecute. result : " + result);
progressDialog.dismiss();
removeDialog(DOWNLOAD_ONPROGRESS);
if (result.equalsIgnoreCase(Util.APK_DOWNLOAD_SUCCESS)) {
Update();
} else {
Toast.makeText(DownloadAllContentsActivity.this,
getString(R.string.updateApplicationFailed),
Toast.LENGTH_LONG).show();
loadDataAsync.execute();
}
}
#Override
protected void onProgressUpdate(String... values) {
if (values != null && values.length > 0) {
progressDialog.setProgress(Integer.parseInt(values[0]));
}
}
}
How can I make my spinner not start automatically? I have seen a few solutions on here but they confused me. When the activity starts the download starts immediately and that is not what needs to happen. How can I allow the user to make the selection instead of it downloading the first item automatically?
Here is the code:
public class SpinnerActivity extends Activity {
public static final int DIALOG_DOWNLOAD_PROGRESS = 0;
private ProgressDialog mProgressDialog;
Spinner spDownloadFrom;
private ArrayAdapter<CharSequence> spinnerArrayAdapter;
String url[] = {
"http://www.becker.cl/bases.pdf",
"http://www.pitt.edu/documents/campusmap0607.pdf",
"http://www.aara.ca/reg3317/web_page_doc.pdf",
"http://www.dataprotection.ie/documents/guidance/GuidanceFinance.pdf",
"http://www.fmbb2012.com/JumpingQualifica1.pdf",
"http://www.consulatdumaroc.ca/coloniefh22012.pdf",
"http://www.rgrdlaw.com/media/cases/140_Complaint.pdf" };
String name[] = {"bases.pdf", "campusmap0607.pdf", "web_page_doc.pdf",
"GuidanceFinance.pdf", "JumpingQualifica1.pdf",
"coloniefh22012.pdf", "140_Complaint.pdf", };
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mProgressDialog = new ProgressDialog(SpinnerActivity.this);
mProgressDialog.setMessage("Please be patient, file downloading...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.setMax(100);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
spDownloadFrom = (Spinner) findViewById(R.id.Spinner01);
spinnerArrayAdapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_spinner_item, name);
spinnerArrayAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spDownloadFrom.setAdapter(spinnerArrayAdapter);
spDownloadFrom.setOnItemSelectedListener(new SpinnerListener(
spDownloadFrom));
}
public class SpinnerListener implements OnItemSelectedListener {
Spinner sp;
public SpinnerListener(View v) {
sp = (Spinner) findViewById(v.getId());
}
#Override
public void onItemSelected(AdapterView<?> parent, View v, int arg2,
long arg3) {
// Call to download class
startDownload(arg2);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
private void startDownload(int position) {
DownloadFile downloadFile = new DownloadFile(position);
downloadFile.execute(url[position]);
}
class DownloadFile extends AsyncTask<String, Integer, String> { // put your
// download
// code
private int position;
public DownloadFile(int position) {
this.position = position;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog.show();
}
#Override
protected void onProgressUpdate(Integer... progress) {
super.onProgressUpdate(progress);
mProgressDialog.setProgress(progress[0]);
}
#Override
protected String doInBackground(String... aurl) {
try {
URL url = new URL(aurl[0]);
URLConnection connection = url.openConnection();
connection.connect();
int fileLength = connection.getContentLength();
int tickSize = 2 * fileLength / 100;
int nextProgress = tickSize;
Log.d(
"ANDRO_ASYNC", "Lenght of file: " + fileLength);
InputStream input = new BufferedInputStream(url.openStream());
String path = Environment.getExternalStorageDirectory()
+ "/Android/Data/"
+ getApplicationContext().getPackageName() + "/files/";
File file = new File(path);
file.mkdirs();
File outputFile = new File(file, name[position]);
OutputStream output = new FileOutputStream(outputFile);
byte data[] = new byte[1024 * 1024];
long total = 0;
int count;
while ((count = input.read(data)) != -1) {
total += count;
if (total >= nextProgress) {
nextProgress = (int) ((total / tickSize + 1) * tickSize);
this.publishProgress((int) (total * 100 / fileLength));
}
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
mProgressDialog.dismiss();
} catch (Exception e) {
Log.e("Spinner", "exception", e);
}
return null;
}
protected void onProgressUpdate(String... progress) {
Log.d("Downloading", progress[0]);
}
#Override
protected void onPostExecute(String unused) {
mProgressDialog.dismiss();
File file = new File(Environment.getExternalStorageDirectory()
+ "/Android/Data/"
+ getApplicationContext().getPackageName() + "/files/"
+ name[position]);
Intent testIntent = new Intent(Intent.ACTION_VIEW);
testIntent.setType("application/pdf");
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/pdf");
try {
startActivity(intent);
} catch (ActivityNotFoundException e) {
Toast.makeText(SpinnerActivity.this,
"No Application Available to View PDF",
Toast.LENGTH_LONG).show();
}
}
}
}
Try this code
public class SpinnerActivity extends Activity {
public static final int DIALOG_DOWNLOAD_PROGRESS = 0;
private ProgressDialog mProgressDialog;
Spinner spDownloadFrom;
private ArrayAdapter<CharSequence> spinnerArrayAdapter;
String url[] = {
"http://www.becker.cl/bases.pdf",
"http://www.pitt.edu/documents/campusmap0607.pdf",
"http://www.aara.ca/reg3317/web_page_doc.pdf",
"http://www.dataprotection.ie/documents/guidance/GuidanceFinance.pdf",
"http://www.fmbb2012.com/JumpingQualifica1.pdf",
"http://www.consulatdumaroc.ca/coloniefh22012.pdf",
"http://www.rgrdlaw.com/media/cases/140_Complaint.pdf" };
String name[] = { "bases.pdf", "campusmap0607.pdf", "web_page_doc.pdf",
"GuidanceFinance.pdf", "JumpingQualifica1.pdf",
"coloniefh22012.pdf", "140_Complaint.pdf", };
private boolean checkFlag = false;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mProgressDialog = new ProgressDialog(SpinnerActivity.this);
mProgressDialog.setMessage("Please be patient, file downloading...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.setMax(100);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
spDownloadFrom = (Spinner) findViewById(R.id.Spinner01);
spinnerArrayAdapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_spinner_item, name);
spinnerArrayAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spDownloadFrom.setAdapter(spinnerArrayAdapter);
SpinnerListener spListener = new SpinnerListener();
spDownloadFrom.setOnItemSelectedListener(spListener);
}
public class SpinnerListener implements OnItemSelectedListener {
public SpinnerListener() {
}
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
if(checkFlag){
startDownload(position);
}
checkFlag = true;
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
}
private void startDownload(int position) {
DownloadFile downloadFile = new DownloadFile(position);
downloadFile.execute(url[position]);
}
class DownloadFile extends AsyncTask<String, Integer, String> { // put your
// download
// code
private int position;
public DownloadFile(int position) {
this.position = position;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog.show();
}
#Override
protected void onProgressUpdate(Integer... progress) {
super.onProgressUpdate(progress);
mProgressDialog.setProgress(progress[0]);
}
#Override
protected String doInBackground(String... aurl) {
try {
URL url = new URL(aurl[0]);
URLConnection connection = url.openConnection();
connection.connect();
int fileLength = connection.getContentLength();
int tickSize = 2 * fileLength / 100;
int nextProgress = tickSize;
Log.d(
"ANDRO_ASYNC", "Lenght of file: " + fileLength);
InputStream input = new BufferedInputStream(url.openStream());
String path = Environment.getExternalStorageDirectory()
+ "/Android/Data/"
+ getApplicationContext().getPackageName() + "/files/";
File file = new File(path);
file.mkdirs();
File outputFile = new File(file, name[position]);
OutputStream output = new FileOutputStream(outputFile);
byte data[] = new byte[1024 * 1024];
long total = 0;
int count;
while ((count = input.read(data)) != -1) {
total += count;
if (total >= nextProgress) {
nextProgress = (int) ((total / tickSize + 1) * tickSize);
this.publishProgress((int) (total * 100 / fileLength));
}
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
mProgressDialog.dismiss();
} catch (Exception e) {
Log.e("Spinner", "exception", e);
}
return null;
}
protected void onProgressUpdate(String... progress) {
Log.d("Downloading", progress[0]);
}
#Override
protected void onPostExecute(String unused) {
mProgressDialog.dismiss();
File file = new File(Environment.getExternalStorageDirectory()
+ "/Android/Data/"
+ getApplicationContext().getPackageName() + "/files/"
+ name[position]);
Intent testIntent = new Intent(Intent.ACTION_VIEW);
testIntent.setType("application/pdf");
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/pdf");
try {
startActivity(intent);
} catch (ActivityNotFoundException e) {
Toast.makeText(SpinnerActivity.this,
"No Application Available to View PDF",
Toast.LENGTH_LONG).show();
}
}
}
}