package com.exercise.AndroidDownloadManager;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import android.app.Activity;
import android.app.DownloadManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.preference.PreferenceManager;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
public class AndroidDownloadManagerActivity extends Activity {
final String DOWNLOAD_FILE = "http://goo.gl/w3XV3";
final String strPref_Download_ID = "PREF_DOWNLOAD_ID";
SharedPreferences preferenceManager;
DownloadManager downloadManager;
ImageView image;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
preferenceManager
= PreferenceManager.getDefaultSharedPreferences(this);
downloadManager
= (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
Button btnStartDownload = (Button)findViewById(R.id.startdownload);
btnStartDownload.setOnClickListener(btnStartDownloadOnClickListener);
image = (ImageView)findViewById(R.id.image);
}
Button.OnClickListener btnStartDownloadOnClickListener
= new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Uri downloadUri = Uri.parse(DOWNLOAD_FILE);
DownloadManager.Request request = new DownloadManager.Request(downloadUri);
long id = downloadManager.enqueue(request);
//Save the request id
Editor PrefEdit = preferenceManager.edit();
PrefEdit.putLong(strPref_Download_ID, id);
PrefEdit.commit();
}};
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
CheckDwnloadStatus();
IntentFilter intentFilter
= new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE);
registerReceiver(downloadReceiver, intentFilter);
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
unregisterReceiver(downloadReceiver);
}
private BroadcastReceiver downloadReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context arg0, Intent arg1) {
// TODO Auto-generated method stub
CheckDwnloadStatus();
}
};
private void CheckDwnloadStatus(){
// TODO Auto-generated method stub
DownloadManager.Query query = new DownloadManager.Query();
long id = preferenceManager.getLong(strPref_Download_ID, 0);
query.setFilterById(id);
Cursor cursor = downloadManager.query(query);
if(cursor.moveToFirst()){
int columnIndex = cursor.getColumnIndex(DownloadManager.COLUMN_STATUS);
int status = cursor.getInt(columnIndex);
int columnReason = cursor.getColumnIndex(DownloadManager.COLUMN_REASON);
int reason = cursor.getInt(columnReason);
switch(status){
case DownloadManager.STATUS_FAILED:
String failedReason = "";
switch(reason){
case DownloadManager.ERROR_CANNOT_RESUME:
failedReason = "ERROR_CANNOT_RESUME";
break;
case DownloadManager.ERROR_DEVICE_NOT_FOUND:
failedReason = "ERROR_DEVICE_NOT_FOUND";
break;
case DownloadManager.ERROR_FILE_ALREADY_EXISTS:
failedReason = "ERROR_FILE_ALREADY_EXISTS";
break;
case DownloadManager.ERROR_FILE_ERROR:
failedReason = "ERROR_FILE_ERROR";
break;
case DownloadManager.ERROR_HTTP_DATA_ERROR:
failedReason = "ERROR_HTTP_DATA_ERROR";
break;
case DownloadManager.ERROR_INSUFFICIENT_SPACE:
failedReason = "ERROR_INSUFFICIENT_SPACE";
break;
case DownloadManager.ERROR_TOO_MANY_REDIRECTS:
failedReason = "ERROR_TOO_MANY_REDIRECTS";
break;
case DownloadManager.ERROR_UNHANDLED_HTTP_CODE:
failedReason = "ERROR_UNHANDLED_HTTP_CODE";
break;
case DownloadManager.ERROR_UNKNOWN:
failedReason = "ERROR_UNKNOWN";
break;
}
Toast.makeText(AndroidDownloadManagerActivity.this,
"FAILED: " + failedReason,
Toast.LENGTH_LONG).show();
break;
case DownloadManager.STATUS_PAUSED:
String pausedReason = "";
switch(reason){
case DownloadManager.PAUSED_QUEUED_FOR_WIFI:
pausedReason = "PAUSED_QUEUED_FOR_WIFI";
break;
case DownloadManager.PAUSED_UNKNOWN:
pausedReason = "PAUSED_UNKNOWN";
break;
case DownloadManager.PAUSED_WAITING_FOR_NETWORK:
pausedReason = "PAUSED_WAITING_FOR_NETWORK";
break;
case DownloadManager.PAUSED_WAITING_TO_RETRY:
pausedReason = "PAUSED_WAITING_TO_RETRY";
break;
}
Toast.makeText(AndroidDownloadManagerActivity.this,
"PAUSED: " + pausedReason,
Toast.LENGTH_LONG).show();
break;
case DownloadManager.STATUS_PENDING:
Toast.makeText(AndroidDownloadManagerActivity.this,
"PENDING",
Toast.LENGTH_LONG).show();
break;
case DownloadManager.STATUS_RUNNING:
Toast.makeText(AndroidDownloadManagerActivity.this,
"RUNNING",
Toast.LENGTH_LONG).show();
break;
case DownloadManager.STATUS_SUCCESSFUL:
Toast.makeText(AndroidDownloadManagerActivity.this,
"SUCCESSFUL",
Toast.LENGTH_LONG).show();
GetFile();
break;
}
}
}
private void GetFile(){
//Retrieve the saved request id
long downloadID = preferenceManager.getLong(strPref_Download_ID, 0);
ParcelFileDescriptor file;
try {
file = downloadManager.openDownloadedFile(downloadID);
FileInputStream fileInputStream
= new ParcelFileDescriptor.AutoCloseInputStream(file);
Bitmap bm = BitmapFactory.decodeStream(fileInputStream);
image.setImageBitmap(bm);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Download the files.
next:
- Restrict the types of networks over which DownloadManager may proceed.
6 comments:
Thank you, this helped me today!
I would add the following:
case 404:
failedReason = "FILE_NOT_FOUND";
break;
If you're interested in reporting a file that couldn't be found at the requested url.
Thanks again!
Very Very helpful!
thanks a million!!!
I am using Download manager and register receiver callback for following Action :
DownloadManager.ACTION_DOWNLOAD_COMPLETE to know if download complete and
ConnectivityManager.CONNECTIVITY_ACTION to check network connectivity.
Here I am facing very wired behavior :
As I off wifi receiver for ACTION_DOWNLOAD_COMPLETE called, don't know why??
any one have idea about it/any suggestion.
Thanks for a great tut,
Is there a way to cancel the the download by clicking on a progressbar in notification area?
Please read Cancel/remove download from DownloadManager.
First if thanks for sharing this code.
But, how can I know the path where the downloaded file has been stored?
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