davod56
جمعه 07 آبان 1395, 09:47 صبح
سلام
لطفا اساتید راهنمایی کنند...
من از کد زیر برای دانلود فایل mp3 استفاده می کنم و مشکلی که دارم این هست که برنامه در شبیه ساز با نسخه ی 4 درست کار می کنه ولی در گوشی (اندروید 6) درست کار نمی کنه!!! یعنی نه پوشه ای می سازه و نه فایل رو دانلود می کنه...
اینم کدی که استفاده می کنم....
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.widget.TextView;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class test extends Activity {
public static final String LOG_TAG = "Android Downloader by The Code Of A Ninja";
//initialize our progress dialog/bar
private ProgressDialog mProgressDialog;
public static final int DIALOG_DOWNLOAD_PROGRESS = 0;
//initialize root directory
File rootDir = Environment.getExternalStorageDirectory();
//defining file name and url
public String fileName = "097_ghadr.mp3";
public String fileURL = "http://gmi.zgig.in/download/097_ghadr.mp3";
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//setting some display
setContentView(R.layout.test);
TextView tv = new TextView(this);
tv.setText("Android Download File With Progress Bar");
//making sure the download directory exists
checkAndCreateDirectory("/my_downloads");
//executing the asynctask
new DownloadFileAsync().execute(fileURL);
}
//this is our download file asynctask
class DownloadFileAsync extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(DIALOG_DOWNLOAD_PROGRESS);
}
@Override
protected String doInBackground(String... aurl) {
try {
//connecting to url
URL u = new URL(fileURL);
HttpURLConnection c = (HttpURLConnection) u.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
//lenghtOfFile is used for calculating download progress
int lenghtOfFile = c.getContentLength();
//this is where the file will be seen after the download
FileOutputStream f = new FileOutputStream(new File(rootDir + "/my_downloads/", fileName));
//file input is from the url
InputStream in = c.getInputStream();
//here’s the download code
byte[] buffer = new byte[1024];
int len1 = 0;
long total = 0;
while ((len1 = in.read(buffer)) > 0) {
total += len1; //total = total + len1
publishProgress(""+ (int)((total*100)/lenghtOfFile));
f.write(buffer, 0, len1);
}
f.close();
} catch (Exception e) {
Log.d(LOG_TAG, e.getMessage());
}
return null;
}
protected void onProgressUpdate(String... progress) {
Log.d(LOG_TAG,progress[0]);
mProgressDialog.setProgress(Integer.parseInt(progr ess[0]));
}
@Override
protected void onPostExecute(String unused) {
//dismiss the dialog after the file was downloaded
dismissDialog(DIALOG_DOWNLOAD_PROGRESS);
}
}
//function to verify if directory exists
public void checkAndCreateDirectory(String dirName){
File new_dir = new File( rootDir + dirName );
if( !new_dir.exists() ){
new_dir.mkdirs();
}
}
//our progress bar settings
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DIALOG_DOWNLOAD_PROGRESS: //we set this to 0
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage("Downloading file...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.setMax(100);
mProgressDialog.setProgressStyle(ProgressDialog.ST YLE_HORIZONTAL);
mProgressDialog.setCancelable(true);
mProgressDialog.show();
return mProgressDialog;
default:
return null;
}
}
}
ممنون می شم دوستان راه حلی ارائه کنند...
لطفا اساتید راهنمایی کنند...
من از کد زیر برای دانلود فایل mp3 استفاده می کنم و مشکلی که دارم این هست که برنامه در شبیه ساز با نسخه ی 4 درست کار می کنه ولی در گوشی (اندروید 6) درست کار نمی کنه!!! یعنی نه پوشه ای می سازه و نه فایل رو دانلود می کنه...
اینم کدی که استفاده می کنم....
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.widget.TextView;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class test extends Activity {
public static final String LOG_TAG = "Android Downloader by The Code Of A Ninja";
//initialize our progress dialog/bar
private ProgressDialog mProgressDialog;
public static final int DIALOG_DOWNLOAD_PROGRESS = 0;
//initialize root directory
File rootDir = Environment.getExternalStorageDirectory();
//defining file name and url
public String fileName = "097_ghadr.mp3";
public String fileURL = "http://gmi.zgig.in/download/097_ghadr.mp3";
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//setting some display
setContentView(R.layout.test);
TextView tv = new TextView(this);
tv.setText("Android Download File With Progress Bar");
//making sure the download directory exists
checkAndCreateDirectory("/my_downloads");
//executing the asynctask
new DownloadFileAsync().execute(fileURL);
}
//this is our download file asynctask
class DownloadFileAsync extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(DIALOG_DOWNLOAD_PROGRESS);
}
@Override
protected String doInBackground(String... aurl) {
try {
//connecting to url
URL u = new URL(fileURL);
HttpURLConnection c = (HttpURLConnection) u.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
//lenghtOfFile is used for calculating download progress
int lenghtOfFile = c.getContentLength();
//this is where the file will be seen after the download
FileOutputStream f = new FileOutputStream(new File(rootDir + "/my_downloads/", fileName));
//file input is from the url
InputStream in = c.getInputStream();
//here’s the download code
byte[] buffer = new byte[1024];
int len1 = 0;
long total = 0;
while ((len1 = in.read(buffer)) > 0) {
total += len1; //total = total + len1
publishProgress(""+ (int)((total*100)/lenghtOfFile));
f.write(buffer, 0, len1);
}
f.close();
} catch (Exception e) {
Log.d(LOG_TAG, e.getMessage());
}
return null;
}
protected void onProgressUpdate(String... progress) {
Log.d(LOG_TAG,progress[0]);
mProgressDialog.setProgress(Integer.parseInt(progr ess[0]));
}
@Override
protected void onPostExecute(String unused) {
//dismiss the dialog after the file was downloaded
dismissDialog(DIALOG_DOWNLOAD_PROGRESS);
}
}
//function to verify if directory exists
public void checkAndCreateDirectory(String dirName){
File new_dir = new File( rootDir + dirName );
if( !new_dir.exists() ){
new_dir.mkdirs();
}
}
//our progress bar settings
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DIALOG_DOWNLOAD_PROGRESS: //we set this to 0
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage("Downloading file...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.setMax(100);
mProgressDialog.setProgressStyle(ProgressDialog.ST YLE_HORIZONTAL);
mProgressDialog.setCancelable(true);
mProgressDialog.show();
return mProgressDialog;
default:
return null;
}
}
}
ممنون می شم دوستان راه حلی ارائه کنند...