Uploading Images to Server android

I wanted to know which is the best way to upload image to server without loosing its quality. I have searched on google found various methods of posting data. But I am not sure which one would be best to upload. I came across

1. Multipart Image Upload.
2. Uploading images using byte array
3. Uploading images using base64 encoded string.

I have tried Base64 encoding it leads me to OOM(Out of memory) if image is too high in resolution. Any tutorial which tackle this issue would be appreciated. Thanks in advance.

Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 1);

ABOVE CODE TO SELECT IMAGE FROM GALLERY

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 1)
        if (resultCode == Activity.RESULT_OK) {
            Uri selectedImage = data.getData();

            String filePath = getPath(selectedImage);
            String file_extn = filePath.substring(filePath.lastIndexOf(".") + 1);
            image_name_tv.setText(filePath);

            try {
                if (file_extn.equals("img") || file_extn.equals("jpg") || file_extn.equals("jpeg") || file_extn.equals("gif") || file_extn.equals("png")) {
                    //FINE
                } else {
                    //NOT IN REQUIRED FORMAT
                }
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
}

public String getPath(Uri uri) {
    String[] projection = {MediaColumns.DATA};
    Cursor cursor = managedQuery(uri, projection, null, null, null);
    column_index = cursor
            .getColumnIndexOrThrow(MediaColumns.DATA);
    cursor.moveToFirst();
    imagePath = cursor.getString(column_index);

    return cursor.getString(column_index);
}

NOW POST THE DATA USING MULTIPART FORM DATA

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("LINK TO SERVER");

Multipart FORM DATA

MultipartEntity mpEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
if (filePath != null) {
    File file = new File(filePath);
    Log.d("EDIT USER PROFILE", "UPLOAD: file length = " + file.length());
    Log.d("EDIT USER PROFILE", "UPLOAD: file exist = " + file.exists());
    mpEntity.addPart("avatar", new FileBody(file, "application/octet"));
}

FINALLY POST DATA TO SERVER

httppost.setEntity(mpEntity);
HttpResponse response = httpclient.execute(httppost);

Main activity class to take pick and upload

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
//import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
 
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
 
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
 
 
public class MainActivity extends Activity {
 
    Button btpic, btnup;
    private Uri fileUri;
    String picturePath;
    Uri selectedImage;
    Bitmap photo;
    String ba1;
    public static String URL = "Paste your URL here";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        btpic = (Button) findViewById(R.id.cpic);
        btpic.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                clickpic();
            }
        });
 
        btnup = (Button) findViewById(R.id.up);
        btnup.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                upload();
            }
        });
    }
 
    private void upload() {
        // Image location URL
        Log.e("path", "----------------" + picturePath);
 
        // Image
        Bitmap bm = BitmapFactory.decodeFile(picturePath);
        ByteArrayOutputStream bao = new ByteArrayOutputStream();
        bm.compress(Bitmap.CompressFormat.JPEG, 90, bao);
        byte[] ba = bao.toByteArray();
       //ba1 = Base64.encodeBytes(ba);
 
        Log.e("base64", "-----" + ba1);
 
        // Upload image to server
        new uploadToServer().execute();
 
    }
 
    private void clickpic() {
        // Check Camera
        if (getApplicationContext().getPackageManager().hasSystemFeature(
                PackageManager.FEATURE_CAMERA)) {
            // Open default camera
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
 
            // start the image capture Intent
            startActivityForResult(intent, 100);
 
        } else {
            Toast.makeText(getApplication(), "Camera not supported", Toast.LENGTH_LONG).show();
        }
    }
 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == 100 && resultCode == RESULT_OK) {
 
            selectedImage = data.getData();
            photo = (Bitmap) data.getExtras().get("data");
 
            // Cursor to get image uri to display
 
            String[] filePathColumn = {MediaStore.Images.Media.DATA};
            Cursor cursor = getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();
 
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            picturePath = cursor.getString(columnIndex);
            cursor.close();
 
            Bitmap photo = (Bitmap) data.getExtras().get("data");
            ImageView imageView = (ImageView) findViewById(R.id.Imageprev);
            imageView.setImageBitmap(photo);
        }
    }
 
    public class uploadToServer extends AsyncTask<Void, Void, String> {
 
        private ProgressDialog pd = new ProgressDialog(MainActivity.this);
        protected void onPreExecute() {
            super.onPreExecute();
            pd.setMessage("Wait image uploading!");
            pd.show();
        }
 
        @Override
        protected String doInBackground(Void... params) {
 
            ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("base64", ba1));
            nameValuePairs.add(new BasicNameValuePair("ImageName", System.currentTimeMillis() + ".jpg"));
            try {
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost(URL);
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                String st = EntityUtils.toString(response.getEntity());
                Log.v("log_tag", "In the try Loop" + st);
 
            } catch (Exception e) {
                Log.v("log_tag", "Error in http connection " + e.toString());
            }
            return "Success";
 
        }
 
        protected void onPostExecute(String result) {
            super.onPostExecute(result);
            pd.hide();
            pd.dismiss();
        }
    }
}

php code to handle upload image and also create image from base64 encoded data

<?php
error_reporting(E_ALL);
if(isset($_POST['ImageName'])){
$imgname = $_POST['ImageName'];
$imsrc = base64_decode($_POST['base64']);
$fp = fopen($imgname, 'w');
fwrite($fp, $imsrc);
if(fclose($fp)){
 echo "Image uploaded";
}else{
 echo "Error uploading image";
}
}
?>

use below code it helps you....

        BitmapFactory.Options options = new BitmapFactory.Options();

		options.inSampleSize = 4;
		options.inPurgeable = true;
		Bitmap bm = BitmapFactory.decodeFile("your path of image",options);
		
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		
		bm.compress(Bitmap.CompressFormat.JPEG,40,baos); 
		
		
		// bitmap object

		byteImage_photo = baos.toByteArray();

                    //generate base64 string of image
                    
                   String encodedImage =Base64.encodeToString(byteImage_photo,Base64.DEFAULT);

  //send this encoded string to server

Try this method for uploading Image file from camera

package com.example.imageupload;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.message.BasicHeader;

public class MultipartEntity implements HttpEntity {

private String boundary = null;

ByteArrayOutputStream out = new ByteArrayOutputStream();
boolean isSetLast = false;
boolean isSetFirst = false;

public MultipartEntity() {
	this.boundary = System.currentTimeMillis() + "";
}

public void writeFirstBoundaryIfNeeds() {
	if (!isSetFirst) {
		try {
			out.write(("--" + boundary + "\r\n").getBytes());
		} catch (final IOException e) {

		}
	}
	isSetFirst = true;
}

public void writeLastBoundaryIfNeeds() {
	if (isSetLast) {
		return;
	}
	try {
		out.write(("\r\n--" + boundary + "--\r\n").getBytes());
	} catch (final IOException e) {

	}
	isSetLast = true;
}

public void addPart(final String key, final String value) {
	writeFirstBoundaryIfNeeds();
	try {
		out.write(("Content-Disposition: form-data; name=\"" + key + "\"\r\n")
				.getBytes());
		out.write("Content-Type: text/plain; charset=UTF-8\r\n".getBytes());
		out.write("Content-Transfer-Encoding: 8bit\r\n\r\n".getBytes());
		out.write(value.getBytes());
		out.write(("\r\n--" + boundary + "\r\n").getBytes());
	} catch (final IOException e) {

	}
}

public void addPart(final String key, final String fileName,
		final InputStream fin) {
	addPart(key, fileName, fin, "application/octet-stream");
}

public void addPart(final String key, final String fileName,
		final InputStream fin, String type) {
	writeFirstBoundaryIfNeeds();
	try {
		type = "Content-Type: " + type + "\r\n";
		out.write(("Content-Disposition: form-data; name=\"" + key
				+ "\"; filename=\"" + fileName + "\"\r\n").getBytes());
		out.write(type.getBytes());
		out.write("Content-Transfer-Encoding: binary\r\n\r\n".getBytes());

		final byte[] tmp = new byte[4096];
		int l = 0;
		while ((l = fin.read(tmp)) != -1) {
			out.write(tmp, 0, l);
		}
		out.flush();
	} catch (final IOException e) {

	} finally {
		try {
			fin.close();
		} catch (final IOException e) {

		}
	}
}

public void addPart(final String key, final File value) {
	try {
		addPart(key, value.getName(), new FileInputStream(value));
	} catch (final FileNotFoundException e) {

	}
}

public long getContentLength() {
	writeLastBoundaryIfNeeds();
	return out.toByteArray().length;
}

public Header getContentType() {
	return new BasicHeader("Content-Type", "multipart/form-data; boundary="
			+ boundary);
}

public boolean isChunked() {
	return false;
}

public boolean isRepeatable() {
	return false;
}

public boolean isStreaming() {
	return false;
}

public void writeTo(final OutputStream outstream) throws IOException {
	outstream.write(out.toByteArray());
}

public Header getContentEncoding() {
	return null;
}

public void consumeContent() throws IOException,
		UnsupportedOperationException {
	if (isStreaming()) {
		throw new UnsupportedOperationException(
				"Streaming entity does not implement #consumeContent()");
	}
}

public InputStream getContent() throws IOException,
		UnsupportedOperationException {
	return new ByteArrayInputStream(out.toByteArray());
}

}

Use of class for uploading

private void doFileUpload(File file_path) {

	Log.d("Uri", "Do file path" + file_path);

	try {

		HttpClient client = new DefaultHttpClient();
        //use your server path of php file
		HttpPost post = new HttpPost(ServerUploadPath);

		Log.d("ServerPath", "Path" + ServerUploadPath);

		FileBody bin1 = new FileBody(file_path);
		Log.d("Enter", "Filebody complete " + bin1);

		MultipartEntity reqEntity = new MultipartEntity();
		reqEntity.addPart("uploaded_file", bin1);
		reqEntity.addPart("email", new StringBody(useremail));
		
		post.setEntity(reqEntity);
		Log.d("Enter", "Image send complete");

		HttpResponse response = client.execute(post);
		resEntity = response.getEntity();
		Log.d("Enter", "Get Response");
		try {

			final String response_str = EntityUtils.toString(resEntity);
			if (resEntity != null) {
				Log.i("RESPONSE", response_str);
				JSONObject jobj = new JSONObject(response_str);
				result = jobj.getString("ResponseCode");
				Log.e("Result", "...." + result);

			}
		} catch (Exception ex) {
			Log.e("Debug", "error: " + ex.getMessage(), ex);
		}
	} catch (Exception e) {
		Log.e("Upload Exception", "");
		e.printStackTrace();
	}
}

Service for uploading

   <?php
$image_name = $_FILES["uploaded_file"]["name"];	
$tmp_arr = explode(".",$image_name);
$img_extn = end($tmp_arr);
$new_image_name = 'image_'. uniqid() .'.'.$img_extn;	
$flag=0;				 
		  
if (file_exists("Images/".$new_image_name))
{
		   $msg=$new_image_name . " already exists."
           header('Content-type: application/json');		
           echo json_encode(array("ResponseCode"=>"2","ResponseMsg"=>$msg));		
}else{	
move_uploaded_file($_FILES["uploaded_file"]["tmp_name"],"Images/". $new_image_name);
                   $flag = 1;
}	

if($flag == 1){					   
            require 'db.php';	
            $static_url =$new_image_name;
            $conn=mysql_connect($db_host,$db_username,$db_password) or die("unable to connect localhost".mysql_error());
            $db=mysql_select_db($db_database,$conn) or die("unable to select message_app");	
            $email = "";
            if((isset($_REQUEST['email'])))
            {
                     $email = $_REQUEST['email'];
            }
                  
	$sql ="insert into alert(images) values('$static_url')";

     $result=mysql_query($sql);

     if($result){
	echo json_encode(array("ResponseCode"=>"1","ResponseMsg"=> "Insert data successfully.","Result"=>"True","ImageName"=>$static_url,"email"=>$email));
       } else
       {
					 
         echo json_encode(array("ResponseCode"=>"2","ResponseMsg"=> "Could not insert data.","Result"=>"False","email"=>$email));
        }
}
    else{
	echo json_encode(array("ResponseCode"=>"2","ResponseMsg"=> "Erroe While Inserting Image.","Result"=>"False"));
    }
    ?>

//Kotlin Version


   private fun setImageForUploading (imagePath:String):String{

        val options = BitmapFactory.Options();

        options.inSampleSize = 2
        //options.inPurgeable = true //deprecated

        val bitmap = BitmapFactory.decodeFile(imagePath,options)

        val byteArrayOutPutStream = ByteArrayOutputStream()

        bitmap.compress(Bitmap.CompressFormat.PNG,90,byteArrayOutPutStream)

        // bitmap object
        val byteImagePhoto = byteArrayOutPutStream.toByteArray()

        //generate base64 string of image
        val encodedImage = Base64.encodeToString(byteImagePhoto,Base64.DEFAULT)

        return encodedImage

    }