I am trying to download an apk file to update my application and apk is placed in ftp server and I am downloading that apk using FTP Client.
Even though I call mProgress.setProgress(percent);
the ProgressBar
is not getting updated from the function where I download the apk file by ftp
public class UpdateAppByFTP extends AsyncTask<String,Void,Void> {
private Context context;
CopyStreamAdapter streamListener;
public void setContext(Context mContext){
context = mContext;
}
private ProgressDialog mProgress;
@Override
protected void onPreExecute(){
super.onPreExecute();
mProgress = new ProgressDialog(this.context);
mProgress.setMessage("Downloading new apk .. Please wait...");
mProgress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
//mProgress.setIndeterminate(true);
mProgress.show();
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
mProgress.dismiss(); //Dismiss the above Dialogue
}
@Override
protected Void doInBackground(String... arg0) {
try {
String serverName = arg0[0];
String userName = arg0[1];
String password = arg0[2];
String serverFilePath = arg0[3];
String localFilePath = arg0[4]; if(getFileByFTP(serverName,userName,password,serverFilePath,localFilePath)){
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(localFilePath)), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // without this flag android returned a intent error!
context.startActivity(intent);
}else{
//Do nothing could not download
}
String apkLocation="/download/"+"SmartPOS.apk";
Intent intent1 = new Intent(Intent.ACTION_VIEW);
intent1.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory() +apkLocation)), "application/vnd.android.package-archive");
intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // without this flag android returned a intent error!
context.startActivity(intent1);
} catch (Exception e) {
}
return null;
}
//Below code to download using FTP
public boolean getFileByFTP(String serverName, String userName,
String password, String serverFilePath, String localFilePath)
throws Exception {
FTPClient ftp = new FTPClient();
try {
ftp.connect(serverName);
int reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return false;
}
} catch (IOException e) {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException f) {
throw e;
}
}
throw e;
} catch (Exception e) {
throw e;
}
try {
if (!ftp.login(userName, password)) {
ftp.logout();
}
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
ftp.enterLocalPassiveMode();
final int lenghtOfFile =(int)getFileSize(ftp,serverFilePath);
OutputStream output = new FileOutputStream(localFilePath);
CountingOutputStream cos = new CountingOutputStream(output) {
protected void beforeWrite(int n) {
super.beforeWrite(n);
int percent = Math.round((getCount() * 100) / lenghtOfFile);
Log.d("FTP_DOWNLOAD", "bytesTransferred /downloaded"+percent);
System.err.println("Downloaded "+getCount() + "/" + percent);
mProgress.setProgress(percent);
}
};
ftp.setBufferSize(2024*2048);//To increase the download speed
ftp.retrieveFile(serverFilePath, output);
output.close();
ftp.noop(); // check that control connection is working OK
ftp.logout();
return true;
}
catch (FTPConnectionClosedException e) {
Log.d("FTP_DOWNLOAD", "ERROR FTPConnectionClosedException:"+e.toString());
throw e;
} catch (IOException e) {
Log.d("FTP_DOWNLOAD", "ERROR IOException:"+e.toString());
throw e;
} catch (Exception e) {
Log.d("FTP_DOWNLOAD", "ERROR Exception:"+e.toString());
throw e;
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException f) {
throw f;
}
}
}
}
private static long getFileSize(FTPClient ftp, String filePath) throws Exception {
long fileSize = 0;
FTPFile[] files = ftp.listFiles(filePath);
if (files.length == 1 && files[0].isFile()) {
fileSize = files[0].getSize();
}
Log.d("FTP_DOWNLOAD", "File size = " + fileSize);
return fileSize;
}
}
Basically, the UI Does not get updated, also I am not sure whether the CountingOutputStream
is the correct method to find the downloaded size of the file.
Thanks in advance.
I changed this retrieveFile section of the code and it is fine now
ftp.retrieveFile(serverFilePath, cos);
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