Upload PDF File to Server in Android with PHP and MySQL

Hi there, today’s lesson is about Android Upload Service. Android Upload Service is a very simple and efficient way to achieve the target of uploading files of different extensions such as .pdf, .docx, .xls and so on and use them as per required. In this example, I”ll show you how to upload pdf file to server in android. So let’s get started.

Table of Contents

1 Upload PDF File to Server in Android Tutorial

Upload PDF File to Server in Android Tutorial

Setting the server for the task

To set the server for this task, I am gonna use PHP with MySQL. So, go to localhost/phpmyadmin and a create a database as shown below. (I am using wamp server, you can use any other like xampp or even a live server as well).

Inside your server’s root directory (c:/wamp/www) and create a new folder. I created AndroidPdfUpload.
Inside the folder create a folder named uploads, in this folder we will save all the uploaded PDFs.
Now, create a php file named dbDetails.php and add the following code. It stores all the constants to be used later.

define('DB_HOST','localhost');

define('DB_USERNAME','root');

define('DB_PASSWORD','');

define('DB_NAME','YOUR_DB_NAME');

Next, create another php file named upload.php and add the following code.

<?php

//importing dbDetails file

require_once 'dbDetails.php';

//this is our upload folder

$upload_path = 'uploads/';

//Getting the server ip

$server_ip = gethostbyname(gethostname());

//creating the upload url

$upload_url = 'http://'.$server_ip.'/AndroidPdfUpload/'.$upload_path;

//response array

$response = array();

if($_SERVER['REQUEST_METHOD']=='POST'){

//checking the required parameters from the request

if(isset($_POST['name']) and isset($_FILES['pdf']['name'])){

//connecting to the database

$con = mysqli_connect(DB_HOST,DB_USERNAME,DB_PASSWORD,DB_NAME) or die('Unable to Connect...');

//getting name from the request

$name = $_POST['name'];

//getting file info from the request

$fileinfo = pathinfo($_FILES['pdf']['name']);

//getting the file extension

$extension = $fileinfo['extension'];

//file url to store in the database

$file_url = $upload_url . getFileName() . '.' . $extension;

//file path to upload in the server

$file_path = $upload_path . getFileName() . '.'. $extension;

//trying to save the file in the directory

try{

//saving the file

move_uploaded_file($_FILES['pdf']['tmp_name'],$file_path);

$sql = "INSERT INTO `notestacker`.`pdfs` (`id`, `url`, `name`) VALUES (NULL, '$file_url', '$name');";

//adding the path and name to database

if(mysqli_query($con,$sql)){

//filling response array with values

$response['error'] = false;

$response['url'] = $file_url;

$response['name'] = $name;

}

//if some error occurred

}catch(Exception $e){

$response['error']=true;

$response['message']=$e->getMessage();

}

//closing the connection

mysqli_close($con);

}else{

$response['error']=true;

$response['message']='Please choose a file';

}

//displaying the response

echo json_encode($response);

}

We are generating the file name

so this method will return a file name for the image to be upload

function getFileName(){

$con = mysqli_connect(DB_HOST,DB_USERNAME,DB_PASSWORD,DB_NAME) or die('Unable to Connect...');

$sql = "SELECT max(id) as id FROM pdfs";

$result = mysqli_fetch_array(mysqli_query($con,$sql));

mysqli_close($con);

if($result['id']==null)

return 1;

else

return ++$result['id'];

}

With this, your server is all set for your android project. But before getting into android side you can test your server for file upload.
For testing you can use any REST Client. I am using postman.

upload pdf to server in android — Upload PDF File to Server in Android

As you can see the upload is working fine at server level. Now this is the time to code our Android Application.

Creating Android Project

Create a new android project with Empty Activity. As the files get loaded and the gradle is built, begin with adding the dependency to the app level gradle which enables the project to use android upload service and then sync it.

compile 'net.gotev:uploadservice:2.1'

Now, configure the MainActivity.java and activity_main.xml as shown below.
Here’ the MainActivity.java. It consists of a method named as uploadMultipart() which carries out the upload task. It also consists of storage permissions which is required for this project as it involves reading the android storage.

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

package chutka.bitman.com.uploadpdfsimplified;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.Manifest;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.database.Cursor;

import android.graphics.Bitmap;

import android.net.Uri;

import android.os.Bundle;

import android.provider.MediaStore;

import android.support.annotation.NonNull;

import android.support.v4.app.ActivityCompat;

import android.support.v4.content.ContextCompat;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ImageView;

import android.widget.Toast;

import net.gotev.uploadservice.MultipartUploadRequest;

import net.gotev.uploadservice.UploadNotificationConfig;

import java.io.File;

import java.io.IOException;

import java.io.RandomAccessFile;

import java.net.URISyntaxException;

import java.nio.ByteBuffer;

import java.nio.channels.FileChannel;

import java.util.UUID;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

//Declaring views

private Button buttonChoose;

private Button buttonUpload;

private EditText editText;

public static final String UPLOAD_URL = "http://internetfaqs.net/AndroidPdfUpload/upload.php";

//Pdf request code

private int PICK_PDF_REQUEST = 1;

//storage permission code

private static final int STORAGE_PERMISSION_CODE = 123;

//Uri to store the image uri

private Uri filePath;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//Requesting storage permission

requestStoragePermission();

//Initializing views

buttonChoose = (Button) findViewById(R.id.buttonChoose);

buttonUpload = (Button) findViewById(R.id.buttonUpload);

editText = (EditText) findViewById(R.id.editTextName);

//Setting clicklistener

buttonChoose.setOnClickListener(this);

buttonUpload.setOnClickListener(this);

}

* This is the method responsible for pdf upload

* We need the full pdf path and the name for the pdf in this method

* */

public void uploadMultipart() {

//getting name for the image

String name = editText.getText().toString().trim();

//getting the actual path of the image

String path = FilePath.getPath(this, filePath);

if (path == null) {

Toast.makeText(this, "Please move your .pdf file to internal storage and retry", Toast.LENGTH_LONG).show();

} else {

//Uploading code

try {

String uploadId = UUID.randomUUID().toString();

//Creating a multi part request

new MultipartUploadRequest(this, uploadId, UPLOAD_URL)

.addFileToUpload(path, "pdf") //Adding file

.addParameter("name", name) //Adding text parameter to the request

.setNotificationConfig(new UploadNotificationConfig())

.setMaxRetries(2)

.startUpload(); //Starting the upload

} catch (Exception exc) {

Toast.makeText(this, exc.getMessage(), Toast.LENGTH_SHORT).show();

}

//method to show file chooser

private void showFileChooser() {

Intent intent = new Intent();

intent.setType("application/pdf");

intent.setAction(Intent.ACTION_GET_CONTENT);

startActivityForResult(Intent.createChooser(intent, "Select Pdf"), PICK_PDF_REQUEST);

}

//handling the image chooser activity result

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (requestCode == PICK_PDF_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {

filePath = data.getData();

}

//Requesting permission

private void requestStoragePermission() {

if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)

return;

if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_EXTERNAL_STORAGE)) {

//If the user has denied the permission previously your code will come to this block

//Here you can explain why you need this permission

//Explain here why you need this permission

}

//And finally ask for the permission

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE);

}

//This method will be called when the user will tap on allow or deny

@Override

public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

//Checking the request code of our request

if (requestCode == STORAGE_PERMISSION_CODE) {

//If permission is granted

if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

//Displaying a toast

Toast.makeText(this, "Permission granted now you can read the storage", Toast.LENGTH_LONG).show();

} else {

//Displaying another toast if permission is not granted

Toast.makeText(this, "Oops you just denied the permission", Toast.LENGTH_LONG).show();

}

@Override

public void onClick(View v) {

if (v == buttonChoose) {

showFileChooser();

}

if (v == buttonUpload) {

uploadMultipart();

}

Here’s the activity_main.xml. It consists of few buttons and an EditText to take the input of the pdf file and filename.

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context=".MainActivity">

<LinearLayout

android:gravity="center_horizontal"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<Button

android:id="@+id/buttonChoose"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Select" />

<EditText

android:id="@+id/editTextName"

android:hint="Name For PDF"

android:layout_weight="1"

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

<Button

android:id="@+id/buttonUpload"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Upload" />

</LinearLayout>

The above code will generate the following layout.

Next, create a class named FilePath.java and add the following code. This class provides us with a method to fetch the absoulte path of the selected pdf which is required by the method uploadMultipart() in MainActivity.java.

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

package chutka.bitman.com.uploadpdfsimplified;

/**

* Created by Manish on 10/2/2016.

import android.content.ContentUris;

import android.content.Context;

import android.database.Cursor;

import android.net.Uri;

import android.os.Build;

import android.os.Environment;

import android.provider.DocumentsContract;

import android.provider.MediaStore;

public class FilePath

{

/**

* Method for return file path of Gallery image

* @param context

* @param uri

* @return path of the selected image file from gallery

public static String getPath(final Context context, final Uri uri)

{

//check here to KITKAT or new version

final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

// DocumentProvider

if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {

// ExternalStorageProvider

if (isExternalStorageDocument(uri)) {

final String docId = DocumentsContract.getDocumentId(uri);

final String[] split = docId.split(":");

final String type = split[0];

if ("primary".equalsIgnoreCase(type)) {

return Environment.getExternalStorageDirectory() + "/" + split[1];

}

//DownloadsProvider

else if (isDownloadsDocument(uri)) {

final String id = DocumentsContract.getDocumentId(uri);

final Uri contentUri = ContentUris.withAppendedId(

Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

return getDataColumn(context, contentUri, null, null);

}

// MediaProvider

else if (isMediaDocument(uri)) {

final String docId = DocumentsContract.getDocumentId(uri);

final String[] split = docId.split(":");

final String type = split[0];

Uri contentUri = null;

if ("image".equals(type)) {

contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;

} else if ("video".equals(type)) {

contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;

} else if ("audio".equals(type)) {

contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;

}

final String selection = "_id=?";

final String[] selectionArgs = new String[] {

split[1]

};

return getDataColumn(context, contentUri, selection, selectionArgs);

}

// MediaStore (and general)

else if ("content".equalsIgnoreCase(uri.getScheme())) {

// Return the remote address

if (isGooglePhotosUri(uri))

return uri.getLastPathSegment();

return getDataColumn(context, uri, null, null);

}

// File

else if ("file".equalsIgnoreCase(uri.getScheme())) {

return uri.getPath();

}

return null;

}

/**

* Get the value of the data column for this Uri. This is useful for

* MediaStore Uris, and other file-based ContentProviders.

* @param context The context.

* @param uri The Uri to query.

* @param selection (Optional) Filter used in the query.

* @param selectionArgs (Optional) Selection arguments used in the query.

* @return The value of the _data column, which is typically a file path.

public static String getDataColumn(Context context, Uri uri, String selection,

String[] selectionArgs) {

Cursor cursor = null;

final String column = "_data";

final String[] projection = {

column

};

try {

cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,

null);

if (cursor != null && cursor.moveToFirst()) {

final int index = cursor.getColumnIndexOrThrow(column);

return cursor.getString(index);

}

} finally {

if (cursor != null)

cursor.close();

}

return null;

}

/**

* @param uri The Uri to check.

* @return Whether the Uri authority is ExternalStorageProvider.

public static boolean isExternalStorageDocument(Uri uri) {

return "com.android.externalstorage.documents".equals(uri.getAuthority());

}

/**

* @param uri The Uri to check.

* @return Whether the Uri authority is DownloadsProvider.

public static boolean isDownloadsDocument(Uri uri) {

return "com.android.providers.downloads.documents".equals(uri.getAuthority());

}

/**

* @param uri The Uri to check.

* @return Whether the Uri authority is MediaProvider.

public static boolean isMediaDocument(Uri uri) {

return "com.android.providers.media.documents".equals(uri.getAuthority());

}

/**

* @param uri The Uri to check.

* @return Whether the Uri authority is Google Photos.

public static boolean isGooglePhotosUri(Uri uri) {

return "com.google.android.apps.photos.content".equals(uri.getAuthority());

}

We’re almost done. Just add the Internet permission to you AndroidManifest.xml file as shown below.

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="chutka.bitman.com.uploadpdfsimplified">

<uses-permission android:name="android.permission.INTERNET" />

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:supportsRtl="true"

android:theme="@style/AppTheme">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

And you did it. Run the app now, select the pdf and enter a name for it and the upload shall begin. The url used in this project is live. Once pdf upload is complete, its gonna flash a message saying file uploaded successfully. The sample output can be seen in the below images.

Fetching PDFs From Server

To fetch the uploaded pdfs from the server, we need a php file to process this request. So, go ahead and create a php file named getPdfs.php and add the following code to it.

<?php

/**

* Created by PhpStorm.

* User: Manish

* Date: 11/1/2016

* Time: 6:55 PM

require_once 'dbDetails.php';

//connecting to the db

$con = mysqli_connect(DB_HOST,DB_USERNAME,DB_PASSWORD,DB_NAME) or die("Unable to connect");

//sql query

$sql = "SELECT * FROM `pdfs`";

//getting result on execution the sql query

$result = mysqli_query($con,$sql);

//response array

$response = array();

$response['error'] = false;

$response['message'] = "PDfs fetched successfully.";

$response['pdfs'] = array();

//traversing through all the rows

while($row =mysqli_fetch_array($result)){

$temp = array();

$temp['id'] = $row['id'];

$temp['url'] = $row['url'];

$temp['name'] = $row['name'];

array_push($response['pdfs'],$temp);

}

echo json_encode($response);

With this, the server is ready to facilitate the fetching of pdfs on the app. Again you can execute this script using POSTMAN.

As you can see we are getting the id, url and name of the uploaded pdfs in JSON format. We will read this data in android and then we will download the PDF with the URL.
Now, let’s begin the work on the android part. To get started, begin with configuring the activity_main.xml file. To initiate the fetching of pdfs, we need a button for the same and also a listview to display the list of pdfs fetched.
To do so, update your activity_main.xml file with the code shown below:-

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context=".MainActivity">

<LinearLayout

android:gravity="center_horizontal"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<Button

android:id="@+id/buttonChoose"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Select" />

<EditText

android:id="@+id/editTextName"

android:hint="Name For PDF"

android:layout_weight="1"

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

<Button

android:id="@+id/buttonUpload"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Upload" />

</LinearLayout>

<Button

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Fetch Pdf"

android:id="@+id/buttonFetchPdf"/>

<ListView

android:layout_width="match_parent"

android:id="@+id/listView"

android:layout_height="wrap_content">

</ListView>

</LinearLayout>

As you can see that the above xml code consists of a ListView and that calls for another layout resource file which would server as the layout of the ListView. So, go ahead and create a layout resource file named list_layout.xml and add the following code.

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="match_parent">

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/textViewName"/>

<TextView

android:layout_width="match_parent"

android:layout_height="40dp"

android:id="@+id/textViewUrl"/>

</LinearLayout>

It simply consists of two TextViews to show the name and url of the fetched pdf in the ListView.
Now that we are done with the xml part, its time to configure the Java section of this project. To do so, begin with creating a java class named Pdf.java and add the following code.

package chutka.bitman.com.uploadpdfsimplified;

/**

* Created by Manish on 11/1/2016.

**/

public class Pdf {

private String url;

private String name;

public String getUrl() {

return url;

}

public void setUrl(String url) {

this.url = url;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

The above class is the model class for Pdfs and will be used to manipulate the name and url of Pdfs.
Next, to configure the ListView, we need to define a custom adapter. So, go ahead and create a class called PdfAdapter.java and add the following code.

package chutka.bitman.com.uploadpdfsimplified;

import android.app.Activity;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.TextView;

import java.util.ArrayList;

/**

* Created by Manish on 11/1/2016.

public class PdfAdapter extends ArrayAdapter<Pdf>

{

Activity activity;

int layoutResourceId;

ArrayList<Pdf> data=new ArrayList<Pdf>();

Pdf pdf;

public PdfAdapter(Activity activity, int layoutResourceId, ArrayList<Pdf> data) {

super(activity, layoutResourceId, data);

this.activity=activity;

this.layoutResourceId=layoutResourceId;

this.data=data;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

View row=convertView;

PdfHolder holder=null;

if(row==null)

{

LayoutInflater inflater=LayoutInflater.from(activity);

row=inflater.inflate(layoutResourceId,parent,false);

holder=new PdfHolder();

holder.textViewName= (TextView) row.findViewById(R.id.textViewName);

holder.textViewUrl= (TextView) row.findViewById(R.id.textViewUrl);

row.setTag(holder);

}

else

{

holder= (PdfHolder) row.getTag();

}

pdf = data.get(position);

holder.textViewName.setText(pdf.getName());

holder.textViewUrl.setText(pdf.getUrl());

return row;

}

class PdfHolder

{

TextView textViewName,textViewUrl;

}

Now, we need to configure the MainActivity.java to make the final moves. To do so, go ahead and add the following dependency to your app level gradle and then sync it.

compile 'com.android.volley:volley:1.0.0'

The above move just enabled the use of Volley in this project which will be used in the method which would fetch the data from the server.
Finally, update your MainActivity.java with code below.

This update includes

Declaration of Fetch Button, Listview, ArrayList of Pdfs, ProgressDialog, PdfAdapter, url to fetch pdfs and their intializations
Setting on click listener to Fetch Button and ListView.
Defining the method getPdfs() which fetches the data from the server.

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

package chutka.bitman.com.uploadpdfsimplified;

import android.app.ProgressDialog;

import android.support.annotation.StringDef;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.Manifest;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.database.Cursor;

import android.graphics.Bitmap;

import android.net.Uri;

import android.os.Bundle;

import android.provider.MediaStore;

import android.support.annotation.NonNull;

import android.support.v4.app.ActivityCompat;

import android.support.v4.content.ContextCompat;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.AdapterView;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.ProgressBar;

import android.widget.Toast;

import com.android.volley.Request;

import com.android.volley.RequestQueue;

import com.android.volley.Response;

import com.android.volley.VolleyError;

import com.android.volley.toolbox.StringRequest;

import com.android.volley.toolbox.Volley;

import net.gotev.uploadservice.MultipartUploadRequest;

import net.gotev.uploadservice.UploadNotificationConfig;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import java.util.UUID;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

//Declaring views

private Button buttonChoose;

private Button buttonUpload;

private EditText editText;

public static final String UPLOAD_URL = "http://internetfaqs.net/AndroidPdfUpload/upload.php";

public static final String PDF_FETCH_URL = "http://internetfaqs.net/AndroidPdfUpload/getPdfs.php";

ImageView imageView;

//Image request code

private int PICK_PDF_REQUEST = 1;

//storage permission code

private static final int STORAGE_PERMISSION_CODE = 123;

//Uri to store the image uri

private Uri filePath;

//ListView to show the fetched Pdfs from the server

ListView listView;

//button to fetch the intiate the fetching of pdfs.

Button buttonFetch;

//Progress bar to check the progress of obtaining pdfs

ProgressDialog progressDialog;

//an array to hold the different pdf objects

ArrayList<Pdf> pdfList= new ArrayList<Pdf>();

//pdf adapter

PdfAdapter pdfAdapter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//Requesting storage permission

requestStoragePermission();

//Initializing views

buttonChoose = (Button) findViewById(R.id.buttonChoose);

buttonUpload = (Button) findViewById(R.id.buttonUpload);

editText = (EditText) findViewById(R.id.editTextName);

//initializing ListView

listView = (ListView) findViewById(R.id.listView);

//initializing buttonFetch

buttonFetch = (Button) findViewById(R.id.buttonFetchPdf);

//initializing progressDialog

progressDialog = new ProgressDialog(this);

//Setting clicklistener

buttonChoose.setOnClickListener(this);

buttonUpload.setOnClickListener(this);

buttonFetch.setOnClickListener(this);

//setting listView on item click listener

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

Pdf pdf = (Pdf) parent.getItemAtPosition(position);

Intent intent = new Intent();

intent.setAction(Intent.ACTION_VIEW);

intent.addCategory(Intent.CATEGORY_BROWSABLE);

intent.setData(Uri.parse(pdf.getUrl()));

startActivity(intent);

}

});

}

* This is the method responsible for pdf upload

* We need the full pdf path and the name for the pdf in this method

* */

public void uploadMultipart() {

//getting name for the pdf

String name = editText.getText().toString().trim();

//getting the actual path of the pdf

String path = FilePath.getPath(this, filePath);

if (path == null) {

Toast.makeText(this, "Please move your .pdf file to internal storage and retry", Toast.LENGTH_LONG).show();

} else {

//Uploading code

try {

String uploadId = UUID.randomUUID().toString();

//Creating a multi part request

new MultipartUploadRequest(this, uploadId, UPLOAD_URL)

.addFileToUpload(path, "pdf") //Adding file

.addParameter("name", name) //Adding text parameter to the request

.setNotificationConfig(new UploadNotificationConfig())

.setMaxRetries(2)

.startUpload(); //Starting the upload

} catch (Exception exc) {

Toast.makeText(this, exc.getMessage(), Toast.LENGTH_SHORT).show();

}

//method to show file chooser

private void showFileChooser() {

Intent intent = new Intent();

intent.setType("application/pdf");

intent.setAction(Intent.ACTION_GET_CONTENT);

startActivityForResult(Intent.createChooser(intent, "Select Pdf"), PICK_PDF_REQUEST);

}

//handling the ima chooser activity result

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (requestCode == PICK_PDF_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {

filePath = data.getData();

}

//Requesting permission

private void requestStoragePermission() {

if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)

return;

if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_EXTERNAL_STORAGE)) {

//If the user has denied the permission previously your code will come to this block

//Here you can explain why you need this permission

//Explain here why you need this permission

}

//And finally ask for the permission

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE);

}

//This method will be called when the user will tap on allow or deny

@Override

public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

//Checking the request code of our request

if (requestCode == STORAGE_PERMISSION_CODE) {

//If permission is granted

if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

//Displaying a toast

Toast.makeText(this, "Permission granted now you can read the storage", Toast.LENGTH_LONG).show();

} else {

//Displaying another toast if permission is not granted

Toast.makeText(this, "Oops you just denied the permission", Toast.LENGTH_LONG).show();

}

@Override

public void onClick(View v) {

if (v == buttonChoose) {

showFileChooser();

}

if (v == buttonUpload) {

uploadMultipart();

}

if(v==buttonFetch){

getPdfs();

}

private void getPdfs() {

progressDialog.setMessage("Fetching Pdfs... Please Wait");

progressDialog.show();

StringRequest stringRequest = new StringRequest(Request.Method.POST, PDF_FETCH_URL,

new Response.Listener<String>() {

@Override

public void onResponse(String response) {

progressDialog.dismiss();

try {

JSONObject obj = new JSONObject(response);

Toast.makeText(MainActivity.this,obj.getString("message"), Toast.LENGTH_SHORT).show();

JSONArray jsonArray = obj.getJSONArray("pdfs");

for(int i=0;i<jsonArray.length();i++){

//Declaring a json object corresponding to every pdf object in our json Array

JSONObject jsonObject = jsonArray.getJSONObject(i);

//Declaring a Pdf object to add it to the ArrayList pdfList

Pdf pdf = new Pdf();

String pdfName = jsonObject.getString("name");

String pdfUrl = jsonObject.getString("url");

pdf.setName(pdfName);

pdf.setUrl(pdfUrl);

pdfList.add(pdf);

}

pdfAdapter=new PdfAdapter(MainActivity.this,R.layout.list_layout, pdfList);

listView.setAdapter(pdfAdapter);

pdfAdapter.notifyDataSetChanged();

} catch (JSONException e) {

e.printStackTrace();

}

new Response.ErrorListener() {

@Override

public void onErrorResponse(VolleyError error) {

}

);

RequestQueue request = Volley.newRequestQueue(this);

request.add(stringRequest);

}

And you did it. Run the app now and hit the fetch pdf button to see the list of uploaded pdfs. When clicked on any List Item, it downloads the pdf for you. The sample output of this part of the project can be seen below.

Now if you want the source code of this Upload PDF File to Server in Android Tutorial then you can get it from the below link.

[sociallocker id=1372] Upload PDF File to Server in Android Source Code [/sociallocker]

So thats all for this Upload PDF File to Server in Android Tutorial. And if you are having any query or doubt regarding this Upload PDF File to Server in Android Tutorial meet me in comment section.