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Android Upload Image to Server Using PHP MySQL

if you liked the demonstration of Android Upload Image to Server App then go ahead to know how you can do this. Lets start creating our Android Upload Image to Server Project.
This Android Upload Image to Server is having two parts

PHP MySQL
Android Studio

Lets start with PHP MySQL for your Android Upload Image to Server app.

Android Upload Image to Server – PHP MySQL Part

I am using hostinger hosting as my web server.
So go to your hosting accounts PhpMyAdmin and create a new table.
I have created the following table
Now we need to create a php script for our database connection
Create a new file named dbConnect.php and write the following code

<?php

define('HOST','localhost');

define('USER','root');

define('PASS','');

define('DB','android');

$con = mysqli_connect(HOST,USER,PASS,DB) or die('Unable to Connect');

Now we need one more php script to get and save our image sent from android device
Create a new file upload.php and write the following code

Create a new file upload.php and write the following code

<?php

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

$image = $_POST['image'];

require_once('dbConnect.php');

$sql = "INSERT INTO images (image) VALUES (?)";

$stmt = mysqli_prepare($con,$sql);

mysqli_stmt_bind_param($stmt,"s",$image);

mysqli_stmt_execute($stmt);

$check = mysqli_stmt_affected_rows($stmt);

if($check == 1){

echo "Image Uploaded Successfully";

}else{

echo "Error Uploading Image";

}

mysqli_close($con);

}else{

echo "Error";

Android Upload Image to Server – The Android Part

Open android studio and create a new android project. (I have created ImageUploadSample)
Firstly we will create a new class to handle our Http Request
Right click on your package name and create a new java class (I created RequestHandler.java)
Write the following code

package com.aniket.imagetoserver;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.io.UnsupportedEncodingException;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLEncoder;

import java.util.HashMap;

import java.util.Map;

import javax.net.ssl.HttpsURLConnection;

public class RequestHandler {

public String sendGetRequest(String uri) {

try {

URL url = new URL(uri);

HttpURLConnection con = (HttpURLConnection) url.openConnection();

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));

String result;

StringBuilder sb = new StringBuilder();

while((result = bufferedReader.readLine())!=null){

sb.append(result);

}

return sb.toString();

} catch (Exception e) {

return null;

}

public String sendPostRequest(String requestURL,

HashMap<String, String> postDataParams) {

URL url;

String response = "";

try {

url = new URL(requestURL);

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setReadTimeout(15000);

conn.setConnectTimeout(15000);

conn.setRequestMethod("POST");

conn.setDoInput(true);

conn.setDoOutput(true);

OutputStream os = conn.getOutputStream();

BufferedWriter writer = new BufferedWriter(

new OutputStreamWriter(os, "UTF-8"));

writer.write(getPostDataString(postDataParams));

writer.flush();

writer.close();

os.close();

int responseCode = conn.getResponseCode();

if (responseCode == HttpsURLConnection.HTTP_OK) {

BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));

response = br.readLine();

} else {

response = "Error Registering";

}

} catch (Exception e) {

e.printStackTrace();

}

return response;

}

private String getPostDataString(HashMap<String, String> params) throws UnsupportedEncodingException {

StringBuilder result = new StringBuilder();

boolean first = true;

for (Map.Entry<String, String> entry : params.entrySet()) {

if (first)

first = false;

else

result.append("&");

result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));

result.append("=");

result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));

}

return result.toString();

}

In activity_main.xml we have to create the following layout

Android Upload Image to Server

For creating the above layout you can use the following xml code

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

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

android:orientation="vertical"

android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

<Button

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/string_choose_file"

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

<ImageView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_weight="1"

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

<Button

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/string_upload_image"

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

<Button

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/string_view_image"

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

</LinearLayout>

Now come to MainActivity.java file
First we will declare some variables

public static final String UPLOAD_URL = "http://10.0.2.2/ImageUpload/upload.php";

public static final String UPLOAD_KEY = "image";

public static final String TAG = "MY MESSAGE";

private int PICK_IMAGE_REQUEST = 1;

private Button buttonChoose;

private Button buttonUpload;

private ImageView imageView;

private Bitmap bitmap;

private Uri filePath;

Inside onCreate method we will initialize our components

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

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

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

buttonView = (Button) findViewById(R.id.buttonViewImage);

imageView = (ImageView) findViewById(R.id.imageView);

buttonChoose.setOnClickListener(this);

buttonUpload.setOnClickListener(this);

}

As you can see we have added setOnClickListener to the buttons.
So now come to your onClick method and write the following code

@Override

public void onClick(View v) {

if (v == buttonChoose) {

showFileChooser();

}

if(v == buttonUpload){

uploadImage();

}

Here we have two methods showFileChooser() this method will show the gallery from where user can choose image to upload.
When the user will choose an Image to upload, then after selection we will show that image to the ImageView we created in our main layout.
These two methods will do all the require things

private void showFileChooser() {

Intent intent = new Intent();

intent.setType("image/*");

intent.setAction(Intent.ACTION_GET_CONTENT);

startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);

}

@Override

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

super.onActivityResult(requestCode, resultCode, data);

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

filePath = data.getData();

try {

bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);

imageView.setImageBitmap(bitmap);

} catch (IOException e) {

e.printStackTrace();

}

Now we have the Image which is to bet uploaded in bitmap.
We will convert this bitmap to base64 string
So we will create a method to convert this bitmap to base64 string

public String getStringImage(Bitmap bmp){

ByteArrayOutputStream baos = new ByteArrayOutputStream();

bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos);

byte[] imageBytes = baos.toByteArray();

String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);

return encodedImage;

}

Now finally create uploadImage() method

private void uploadImage(){

class UploadImage extends AsyncTask<Bitmap,Void,String>{

ProgressDialog loading;

RequestHandler rh = new RequestHandler();

@Override

protected void onPreExecute() {

super.onPreExecute();

loading = ProgressDialog.show(MainActivity.this, "Uploading Image", "Please wait...",true,true);

}

@Override

protected void onPostExecute(String s) {

super.onPostExecute(s);

loading.dismiss();

Toast.makeText(getApplicationContext(),s,Toast.LENGTH_LONG).show();

}

@Override

protected String doInBackground(Bitmap... params) {

Bitmap bitmap = params[0];

String uploadImage = getStringImage(bitmap);

HashMap<String,String> data = new HashMap<>();

data.put(UPLOAD_KEY, uploadImage);

String result = rh.sendPostRequest(UPLOAD_URL,data);

return result;

}

Now thats it for Android Image Upload to Server. You can see the final complete code below for MainActivity.java

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package com.aniket.imagetoserver;

import android.app.ProgressDialog;

import android.content.Context;

import android.content.Intent;

import android.database.Cursor;

import android.graphics.Bitmap;

import android.net.Uri;

import android.os.AsyncTask;

import android.provider.MediaStore;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.util.Base64;

import android.util.Log;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.Toast;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.util.HashMap;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

public static final String UPLOAD_URL = "http://10.0.2.2/ImageUpload/upload.php";

public static final String UPLOAD_KEY = "image";

public static final String TAG = "MY MESSAGE";

private int PICK_IMAGE_REQUEST = 1;

private Button buttonChoose;

private Button buttonUpload;

private ImageView imageView;

private Bitmap bitmap;

private Uri filePath;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

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

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

buttonView = (Button) findViewById(R.id.buttonViewImage);

imageView = (ImageView) findViewById(R.id.imageView);

buttonChoose.setOnClickListener(this);

buttonUpload.setOnClickListener(this);

}

private void showFileChooser() {

Intent intent = new Intent();

intent.setType("image/*");

intent.setAction(Intent.ACTION_GET_CONTENT);

startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);

}

@Override

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

super.onActivityResult(requestCode, resultCode, data);

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

filePath = data.getData();

try {

bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);

imageView.setImageBitmap(bitmap);

} catch (IOException e) {

e.printStackTrace();

}

public String getStringImage(Bitmap bmp){

ByteArrayOutputStream baos = new ByteArrayOutputStream();

bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos);

byte[] imageBytes = baos.toByteArray();

String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);

return encodedImage;

}

private void uploadImage(){

class UploadImage extends AsyncTask<Bitmap,Void,String>{

ProgressDialog loading;

RequestHandler rh = new RequestHandler();

@Override

protected void onPreExecute() {

super.onPreExecute();

loading = ProgressDialog.show(MainActivity.this, "Uploading Image", "Please wait...",true,true);

}

@Override

protected void onPostExecute(String s) {

super.onPostExecute(s);

loading.dismiss();

Toast.makeText(getApplicationContext(),s,Toast.LENGTH_LONG).show();

}

@Override

protected String doInBackground(Bitmap... params) {

Bitmap bitmap = params[0];

String uploadImage = getStringImage(bitmap);

HashMap<String,String> data = new HashMap<>();

data.put(UPLOAD_KEY, uploadImage);

String result = rh.sendPostRequest(UPLOAD_URL,data);

return result;

}

UploadImage ui = new UploadImage();

ui.execute(bitmap);

}

@Override

public void onClick(View v) {

if (v == buttonChoose) {

showFileChooser();

}

if(v == buttonUpload){

uploadImage();

}

So thats it for our Android Upload Image to Server app.

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