src/com/android/browser/DownloadSettings.java - android_packages_apps_Gello - Gitiles

 /*
  * Copyright (c) 2013,2014, The Linux Foundation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *     * Redistributions of source code must retain the above copyright
  *       notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  *         copyright notice, this list of conditions and the following
  *         disclaimer in the documentation and/or other materials provided
  *         with the distribution.
  *     * Neither the name of The Linux Foundation nor the names of its
  *         contributors may be used to endorse or promote products derived
  *         from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 package com.android.browser;

 import java.io.File;

 import android.app.Activity;
 import android.content.Intent;
 import java.lang.Thread;

 import com.android.browser.R;

 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.text.format.*;
 import android.util.Log;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.TextView;
 import android.view.Window;
 import android.widget.Toast;
 import android.webkit.MimeTypeMap;
 import android.text.TextUtils;

 import com.android.browser.reflect.ReflectHelper;

 public class DownloadSettings extends Activity {

     private EditText downloadFilenameET;
     private EditText downloadPathET;
     private TextView downloadEstimateSize;
     private TextView downloadEstimateTime;
     private Button downloadStart;
     private Button downloadCancel;
     private String url;
     private String userAgent;
     private String contentDisposition;
     private String mimetype;
     private String referer;
     private String filenameBase;
     private String filename;
     private String filenameExtension;
     private boolean privateBrowsing;
     private long contentLength;
     private String downloadPath;
     private String downloadPathForUser;
     private static final int downloadRate = (1024 * 100 * 60);// Download Rate
                                                               // 100KB/s
     private final static String LOGTAG = "DownloadSettings";
     private final static int DOWNLOAD_PATH = 0;
     private boolean isDownloadStarted = false;

     private static final String ENV_EMULATED_STORAGE_TARGET = "EMULATED_STORAGE_TARGET";
     private static final String APK_TYPE="apk";
     private static final String OCTET_STREAM = "application/octet-stream";

     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         // initial the DownloadSettings view
         requestWindowFeature(Window.FEATURE_NO_TITLE);
         setContentView(R.layout.download_settings);
         downloadFilenameET = (EditText) findViewById(R.id.download_filename_edit);
         downloadPathET = (EditText) findViewById(R.id.download_filepath_selected);
         downloadEstimateSize = (TextView) findViewById(R.id.download_estimate_size_content);
         downloadEstimateTime = (TextView) findViewById(R.id.download_estimate_time_content);
         downloadStart = (Button) findViewById(R.id.download_start);
         downloadCancel = (Button) findViewById(R.id.download_cancel);
         downloadPathET.setOnClickListener(downloadPathListener);
         downloadStart.setOnClickListener(downloadStartListener);
         downloadCancel.setOnClickListener(downloadCancelListener);

         // get the bundle from Intent
         Intent intent = getIntent();
         Bundle fileInfo = intent.getExtras();
         url = fileInfo.getString("url");
         userAgent = fileInfo.getString("userAgent");
         contentDisposition = fileInfo.getString("contentDisposition");
         mimetype = fileInfo.getString("mimetype");
         referer = fileInfo.getString("referer");
         contentLength = fileInfo.getLong("contentLength");
         privateBrowsing = fileInfo.getBoolean("privateBrowsing");
         filename = fileInfo.getString("filename");

         // download filenamebase's length is depended on filenameLength's values
         // if filenamebase.length >= flienameLength, destroy the last string!

         filenameBase = DownloadHandler.getFilenameBase(filename);
         if (filenameBase.length() >= (BrowserUtils.FILENAME_MAX_LENGTH)) {
             filenameBase = filenameBase.substring(0, BrowserUtils.FILENAME_MAX_LENGTH);
         }

         // warring when user enter more over letters into the EditText
         BrowserUtils.maxLengthFilter(DownloadSettings.this, downloadFilenameET,
                 BrowserUtils.FILENAME_MAX_LENGTH);

         downloadFilenameET.setText(filenameBase);

         String filenameExtension = DownloadHandler.getFilenameExtension(filename);

         // introspect for octet stream mimetype what type of file extension it has
         // and reassign mimetype
         if (mimetype == null  || mimetype.isEmpty()  || mimetype.equals(OCTET_STREAM)) {

             String updatedFileName = filenameBase + "." + filenameExtension;
             Object[] params = {updatedFileName};
             Class[] type = new Class[] {String.class};
             mimetype = (String) ReflectHelper.invokeMethod("android.media.MediaFile",
                                             "getMimeTypeForFile", type, params);
         }

         //Add special check for .apk files with octet-stream mimetype
         if (filenameExtension.equals(APK_TYPE) && mimetype != null && mimetype.equals(OCTET_STREAM)) {
             mimetype =  "application/vnd.android.package-archive";
         }

         // last way to fetch for mimetype if its still null
         if (mimetype  == null  || mimetype.isEmpty())
             mimetype = MimeTypeMap.getSingleton().getMimeTypeFromExtension(filenameExtension);

         downloadPath = chooseFolderFromMimeType(BrowserSettings.getInstance().getDownloadPath(),
                 mimetype);
         downloadPathForUser = DownloadHandler.getDownloadPathForUser(DownloadSettings.this,
                 downloadPath);

         autoupdateFileName(filenameBase, DownloadHandler.getFilenameExtension(filename), downloadPath);
         setDownloadPathForUserText(downloadPathForUser);
         setDownloadFileSizeText();
         setDownloadFileTimeText();
     }

     private void autoupdateFileName(String filenameBase, String  extension, String downloadPath) {
         String fullPath =  downloadPath + "/" + filenameBase + "." + extension;
         int count = 1;
         String newFilenameBase = "";

         while(new File(fullPath).exists()) {
             newFilenameBase = filenameBase+"-"+count++;
             fullPath =  downloadPath + "/" + newFilenameBase + "." + extension;
         }

         if(!TextUtils.isEmpty(newFilenameBase)) {
             filenameBase = newFilenameBase;
         }

         downloadFilenameET.setText(filenameBase);
     }

     private OnClickListener downloadPathListener = new OnClickListener() {

         @Override
         public void onClick(View v) {

             final String filemanagerIntent =
                 getResources().getString(R.string.def_intent_file_manager);
             if (!TextUtils.isEmpty(filemanagerIntent)) {
                 // start filemanager for getting download path
                 try {
                     Intent downloadPathIntent = new Intent(filemanagerIntent);
                     DownloadSettings.this.startActivityForResult(downloadPathIntent, DOWNLOAD_PATH);
                 } catch (Exception e) {
                     String err_msg = getString(R.string.activity_not_found,
                             filemanagerIntent);
                     Toast.makeText(DownloadSettings.this, err_msg, Toast.LENGTH_LONG).show();
                 }
             } else {
                 Log.e(LOGTAG, "File Manager intent not defined !!");
             }

         }
     };

     private OnClickListener downloadStartListener = new OnClickListener() {

         @Override
         public void onClick(View v) {
             filenameBase = getFilenameBaseFromUserEnter();
             // check the filename user enter is null or not
             if (TextUtils.isEmpty(filenameBase) || TextUtils.isEmpty(downloadPath)) {
                 DownloadHandler.showFilenameEmptyDialog(DownloadSettings.this);
                 return;
             }

             filenameExtension = DownloadHandler.getFilenameExtension(filename);
             filename = filenameBase + "." + filenameExtension;

             // check the storage status
             if (!DownloadHandler.isStorageStatusOK(DownloadSettings.this, filename, downloadPath)) {
                 return;
             }

             // check the storage memory enough or not
             try {
                 DownloadHandler.setAppointedFolder(downloadPath);
             } catch (Exception e) {
                 DownloadHandler.showNoEnoughMemoryDialog(DownloadSettings.this);
                 return;
             }
             boolean isNoEnoughMemory = DownloadHandler.manageNoEnoughMemory(contentLength,
                     downloadPath);
             if (isNoEnoughMemory) {
                 DownloadHandler.showNoEnoughMemoryDialog(DownloadSettings.this);
                 return;
             }

             // check the download file is exist or not
             String fullFilename = downloadPath + "/" + filename;
             if (mimetype != null && new File(fullFilename).exists()) {
                 DownloadHandler.fileExistQueryDialog(DownloadSettings.this);
                 return;
             }

             // staring downloading
             DownloadHandler.startingDownload(DownloadSettings.this,
                     url, userAgent, contentDisposition,
                     mimetype, referer, privateBrowsing, contentLength,
                     Uri.encode(filename), downloadPath);
             isDownloadStarted = true;
         }
     };

     private OnClickListener downloadCancelListener = new OnClickListener() {
         @Override
         public void onClick(View v) {
             finish();
         }
     };

     protected void onDestroy() {
         super.onDestroy();
     }

     protected void onPause() {
         super.onPause();
         if (isDownloadStarted) {
             finish();
         }
     }

     protected void onResume() {
         super.onResume();
     }

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

         if (DOWNLOAD_PATH == requestCode) {
             if (resultCode == Activity.RESULT_OK && intent != null) {
                 final String result_dir_sel =
                     getResources().getString(R.string.def_file_manager_result_dir);
                 downloadPath = intent.getStringExtra(result_dir_sel);
                 // Fallback logic to stock browser
                 if (downloadPath == null) {
                     Uri uri = intent.getData();
                     if(uri != null)
                         downloadPath = uri.getPath();
                 }
                 if (downloadPath != null) {
                     String rawEmulatedStorageTarget = System.getenv(ENV_EMULATED_STORAGE_TARGET);
                     if (!TextUtils.isEmpty(rawEmulatedStorageTarget)) {
                         if (downloadPath.startsWith("/storage/sdcard0"))
                             downloadPath = downloadPath.replace("/storage/sdcard0",
                                     "/storage/emulated/0");
                         if (downloadPath.startsWith("/storage/emulated/legacy"))
                             downloadPath = downloadPath.replace("/storage/emulated/legacy",
                                     "/storage/emulated/0");
                     }
                     downloadPathForUser = DownloadHandler.getDownloadPathForUser(
                             DownloadSettings.this, downloadPath);
                     setDownloadPathForUserText(downloadPathForUser);
                 }
             }
         }
     }

     // Add for carrier feature - download to related folders by mimetype.
     private static String chooseFolderFromMimeType(String path, String mimeType) {
         String destinationFolder = null;
         if (!path.contains(Environment.DIRECTORY_DOWNLOADS) || null == mimeType)
             return path;
         if (mimeType.startsWith("audio"))
             destinationFolder = Environment.DIRECTORY_MUSIC;
         else if (mimeType.startsWith("video"))
             destinationFolder = Environment.DIRECTORY_MOVIES;
         else if (mimeType.startsWith("image"))
             destinationFolder = Environment.DIRECTORY_PICTURES;
         if (null != destinationFolder)
             path = path.replace(Environment.DIRECTORY_DOWNLOADS, destinationFolder);
         return path;
     }

     /**
      * show download path for user
      *
      * @param downloadPath the download path user can see
      */
     private void setDownloadPathForUserText(String downloadPathForUser) {
         downloadPathET.setText(downloadPathForUser);
     }

     /**
      * get the filename from user select the download path
      *
      * @return String the filename from user selected
      */
     private String getFilenameBaseFromUserEnter() {
         return downloadFilenameET.getText().toString();
     }

     /**
      * set the download file size for user to be known
      */
     private void setDownloadFileSizeText() {
         String sizeText;
         if (contentLength <= 0) {
             sizeText = getString(R.string.unknow_length);
         } else {
             sizeText = getDownloadFileSize();
         }
         downloadEstimateSize.setText(sizeText);

     }

     /**
      * set the time which downloaded this file will be estimately use;
      */
     private void setDownloadFileTimeText() {
         String neededTimeText;
         if (contentLength <= 0) {
             neededTimeText = getString(R.string.unknow_length);
         } else {
             neededTimeText = getNeededTime() + getString(R.string.time_min);
         }
         downloadEstimateTime.setText(neededTimeText);
     }

     /**
      * count the download file's size and format the values
      *
      * @return String the format values
      */
     private String getDownloadFileSize() {
         String currentSizeText = "";
         if (contentLength > 0) {
             currentSizeText = Formatter.formatFileSize(DownloadSettings.this, contentLength);
         }
         return currentSizeText;
     }

     /**
      * get the time download this file will be use,and format this time values
      *
      * @return long the valses of time which download this file will be use
      */
     private long getNeededTime() {
         long timeNeeded = contentLength / downloadRate;
         if (timeNeeded < 1) {
             timeNeeded = 1;
         }
         Log.e(LOGTAG, "TimeNeeded:" + timeNeeded + "min");
         // return the time like 5 min, not 5 s;
         return timeNeeded;
     }
 }
	/*
	* Copyright (c) 2013,2014, The Linux Foundation. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met:
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following
	* disclaimer in the documentation and/or other materials provided
	* with the distribution.
	* * Neither the name of The Linux Foundation nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
	* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
	* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	package com.android.browser;

	import java.io.File;

	import android.app.Activity;
	import android.content.Intent;
	import java.lang.Thread;

	import com.android.browser.R;

	import android.net.Uri;
	import android.os.Bundle;
	import android.os.Environment;
	import android.text.format.*;
	import android.util.Log;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.widget.Button;
	import android.widget.EditText;
	import android.widget.TextView;
	import android.view.Window;
	import android.widget.Toast;
	import android.webkit.MimeTypeMap;
	import android.text.TextUtils;

	import com.android.browser.reflect.ReflectHelper;

	public class DownloadSettings extends Activity {

	private EditText downloadFilenameET;
	private EditText downloadPathET;
	private TextView downloadEstimateSize;
	private TextView downloadEstimateTime;
	private Button downloadStart;
	private Button downloadCancel;
	private String url;
	private String userAgent;
	private String contentDisposition;
	private String mimetype;
	private String referer;
	private String filenameBase;
	private String filename;
	private String filenameExtension;
	private boolean privateBrowsing;
	private long contentLength;
	private String downloadPath;
	private String downloadPathForUser;
	private static final int downloadRate = (1024 * 100 * 60);// Download Rate
	// 100KB/s
	private final static String LOGTAG = "DownloadSettings";
	private final static int DOWNLOAD_PATH = 0;
	private boolean isDownloadStarted = false;

	private static final String ENV_EMULATED_STORAGE_TARGET = "EMULATED_STORAGE_TARGET";
	private static final String APK_TYPE="apk";
	private static final String OCTET_STREAM = "application/octet-stream";

	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	// initial the DownloadSettings view
	requestWindowFeature(Window.FEATURE_NO_TITLE);
	setContentView(R.layout.download_settings);
	downloadFilenameET = (EditText) findViewById(R.id.download_filename_edit);
	downloadPathET = (EditText) findViewById(R.id.download_filepath_selected);
	downloadEstimateSize = (TextView) findViewById(R.id.download_estimate_size_content);
	downloadEstimateTime = (TextView) findViewById(R.id.download_estimate_time_content);
	downloadStart = (Button) findViewById(R.id.download_start);
	downloadCancel = (Button) findViewById(R.id.download_cancel);
	downloadPathET.setOnClickListener(downloadPathListener);
	downloadStart.setOnClickListener(downloadStartListener);
	downloadCancel.setOnClickListener(downloadCancelListener);

	// get the bundle from Intent
	Intent intent = getIntent();
	Bundle fileInfo = intent.getExtras();
	url = fileInfo.getString("url");
	userAgent = fileInfo.getString("userAgent");
	contentDisposition = fileInfo.getString("contentDisposition");
	mimetype = fileInfo.getString("mimetype");
	referer = fileInfo.getString("referer");
	contentLength = fileInfo.getLong("contentLength");
	privateBrowsing = fileInfo.getBoolean("privateBrowsing");
	filename = fileInfo.getString("filename");

	// download filenamebase's length is depended on filenameLength's values
	// if filenamebase.length >= flienameLength, destroy the last string!

	filenameBase = DownloadHandler.getFilenameBase(filename);
	if (filenameBase.length() >= (BrowserUtils.FILENAME_MAX_LENGTH)) {
	filenameBase = filenameBase.substring(0, BrowserUtils.FILENAME_MAX_LENGTH);
	}

	// warring when user enter more over letters into the EditText
	BrowserUtils.maxLengthFilter(DownloadSettings.this, downloadFilenameET,
	BrowserUtils.FILENAME_MAX_LENGTH);

	downloadFilenameET.setText(filenameBase);

	String filenameExtension = DownloadHandler.getFilenameExtension(filename);

	// introspect for octet stream mimetype what type of file extension it has
	// and reassign mimetype
	if (mimetype == null \|\| mimetype.isEmpty() \|\| mimetype.equals(OCTET_STREAM)) {

	String updatedFileName = filenameBase + "." + filenameExtension;
	Object[] params = {updatedFileName};
	Class[] type = new Class[] {String.class};
	mimetype = (String) ReflectHelper.invokeMethod("android.media.MediaFile",
	"getMimeTypeForFile", type, params);
	}

	//Add special check for .apk files with octet-stream mimetype
	if (filenameExtension.equals(APK_TYPE) && mimetype != null && mimetype.equals(OCTET_STREAM)) {
	mimetype = "application/vnd.android.package-archive";
	}

	// last way to fetch for mimetype if its still null
	if (mimetype == null \|\| mimetype.isEmpty())
	mimetype = MimeTypeMap.getSingleton().getMimeTypeFromExtension(filenameExtension);

	downloadPath = chooseFolderFromMimeType(BrowserSettings.getInstance().getDownloadPath(),
	mimetype);
	downloadPathForUser = DownloadHandler.getDownloadPathForUser(DownloadSettings.this,
	downloadPath);

	autoupdateFileName(filenameBase, DownloadHandler.getFilenameExtension(filename), downloadPath);
	setDownloadPathForUserText(downloadPathForUser);
	setDownloadFileSizeText();
	setDownloadFileTimeText();
	}

	private void autoupdateFileName(String filenameBase, String extension, String downloadPath) {
	String fullPath = downloadPath + "/" + filenameBase + "." + extension;
	int count = 1;
	String newFilenameBase = "";

	while(new File(fullPath).exists()) {
	newFilenameBase = filenameBase+"-"+count++;
	fullPath = downloadPath + "/" + newFilenameBase + "." + extension;
	}

	if(!TextUtils.isEmpty(newFilenameBase)) {
	filenameBase = newFilenameBase;
	}

	downloadFilenameET.setText(filenameBase);
	}

	private OnClickListener downloadPathListener = new OnClickListener() {

	@Override
	public void onClick(View v) {

	final String filemanagerIntent =
	getResources().getString(R.string.def_intent_file_manager);
	if (!TextUtils.isEmpty(filemanagerIntent)) {
	// start filemanager for getting download path
	try {
	Intent downloadPathIntent = new Intent(filemanagerIntent);
	DownloadSettings.this.startActivityForResult(downloadPathIntent, DOWNLOAD_PATH);
	} catch (Exception e) {
	String err_msg = getString(R.string.activity_not_found,
	filemanagerIntent);
	Toast.makeText(DownloadSettings.this, err_msg, Toast.LENGTH_LONG).show();
	}
	} else {
	Log.e(LOGTAG, "File Manager intent not defined !!");
	}

	}
	};

	private OnClickListener downloadStartListener = new OnClickListener() {

	@Override
	public void onClick(View v) {
	filenameBase = getFilenameBaseFromUserEnter();
	// check the filename user enter is null or not
	if (TextUtils.isEmpty(filenameBase) \|\| TextUtils.isEmpty(downloadPath)) {
	DownloadHandler.showFilenameEmptyDialog(DownloadSettings.this);
	return;
	}

	filenameExtension = DownloadHandler.getFilenameExtension(filename);
	filename = filenameBase + "." + filenameExtension;

	// check the storage status
	if (!DownloadHandler.isStorageStatusOK(DownloadSettings.this, filename, downloadPath)) {
	return;
	}

	// check the storage memory enough or not
	try {
	DownloadHandler.setAppointedFolder(downloadPath);
	} catch (Exception e) {
	DownloadHandler.showNoEnoughMemoryDialog(DownloadSettings.this);
	return;
	}
	boolean isNoEnoughMemory = DownloadHandler.manageNoEnoughMemory(contentLength,
	downloadPath);
	if (isNoEnoughMemory) {
	DownloadHandler.showNoEnoughMemoryDialog(DownloadSettings.this);
	return;
	}

	// check the download file is exist or not
	String fullFilename = downloadPath + "/" + filename;
	if (mimetype != null && new File(fullFilename).exists()) {
	DownloadHandler.fileExistQueryDialog(DownloadSettings.this);
	return;
	}

	// staring downloading
	DownloadHandler.startingDownload(DownloadSettings.this,
	url, userAgent, contentDisposition,
	mimetype, referer, privateBrowsing, contentLength,
	Uri.encode(filename), downloadPath);
	isDownloadStarted = true;
	}
	};

	private OnClickListener downloadCancelListener = new OnClickListener() {
	@Override
	public void onClick(View v) {
	finish();
	}
	};

	protected void onDestroy() {
	super.onDestroy();
	}

	protected void onPause() {
	super.onPause();
	if (isDownloadStarted) {
	finish();
	}
	}

	protected void onResume() {
	super.onResume();
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

	if (DOWNLOAD_PATH == requestCode) {
	if (resultCode == Activity.RESULT_OK && intent != null) {
	final String result_dir_sel =
	getResources().getString(R.string.def_file_manager_result_dir);
	downloadPath = intent.getStringExtra(result_dir_sel);
	// Fallback logic to stock browser
	if (downloadPath == null) {
	Uri uri = intent.getData();
	if(uri != null)
	downloadPath = uri.getPath();
	}
	if (downloadPath != null) {
	String rawEmulatedStorageTarget = System.getenv(ENV_EMULATED_STORAGE_TARGET);
	if (!TextUtils.isEmpty(rawEmulatedStorageTarget)) {
	if (downloadPath.startsWith("/storage/sdcard0"))
	downloadPath = downloadPath.replace("/storage/sdcard0",
	"/storage/emulated/0");
	if (downloadPath.startsWith("/storage/emulated/legacy"))
	downloadPath = downloadPath.replace("/storage/emulated/legacy",
	"/storage/emulated/0");
	}
	downloadPathForUser = DownloadHandler.getDownloadPathForUser(
	DownloadSettings.this, downloadPath);
	setDownloadPathForUserText(downloadPathForUser);
	}
	}
	}
	}

	// Add for carrier feature - download to related folders by mimetype.
	private static String chooseFolderFromMimeType(String path, String mimeType) {
	String destinationFolder = null;
	if (!path.contains(Environment.DIRECTORY_DOWNLOADS) \|\| null == mimeType)
	return path;
	if (mimeType.startsWith("audio"))
	destinationFolder = Environment.DIRECTORY_MUSIC;
	else if (mimeType.startsWith("video"))
	destinationFolder = Environment.DIRECTORY_MOVIES;
	else if (mimeType.startsWith("image"))
	destinationFolder = Environment.DIRECTORY_PICTURES;
	if (null != destinationFolder)
	path = path.replace(Environment.DIRECTORY_DOWNLOADS, destinationFolder);
	return path;
	}

	/**
	* show download path for user
	*
	* @param downloadPath the download path user can see
	*/
	private void setDownloadPathForUserText(String downloadPathForUser) {
	downloadPathET.setText(downloadPathForUser);
	}

	/**
	* get the filename from user select the download path
	*
	* @return String the filename from user selected
	*/
	private String getFilenameBaseFromUserEnter() {
	return downloadFilenameET.getText().toString();
	}

	/**
	* set the download file size for user to be known
	*/
	private void setDownloadFileSizeText() {
	String sizeText;
	if (contentLength <= 0) {
	sizeText = getString(R.string.unknow_length);
	} else {
	sizeText = getDownloadFileSize();
	}
	downloadEstimateSize.setText(sizeText);

	}

	/**
	* set the time which downloaded this file will be estimately use;
	*/
	private void setDownloadFileTimeText() {
	String neededTimeText;
	if (contentLength <= 0) {
	neededTimeText = getString(R.string.unknow_length);
	} else {
	neededTimeText = getNeededTime() + getString(R.string.time_min);
	}
	downloadEstimateTime.setText(neededTimeText);
	}

	/**
	* count the download file's size and format the values
	*
	* @return String the format values
	*/
	private String getDownloadFileSize() {
	String currentSizeText = "";
	if (contentLength > 0) {
	currentSizeText = Formatter.formatFileSize(DownloadSettings.this, contentLength);
	}
	return currentSizeText;
	}

	/**
	* get the time download this file will be use,and format this time values
	*
	* @return long the valses of time which download this file will be use
	*/
	private long getNeededTime() {
	long timeNeeded = contentLength / downloadRate;
	if (timeNeeded < 1) {
	timeNeeded = 1;
	}
	Log.e(LOGTAG, "TimeNeeded:" + timeNeeded + "min");
	// return the time like 5 min, not 5 s;
	return timeNeeded;
	}
	}