An android activity which demonstrates picking a photo from gallery and uploading it to a remote server.

README.txt

This application requires the jar file httpmime-4.1.1.jar from apache commons.

It also requires Internet permission in AndroidManifest.xml.

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="Select a picture and upload"
    />
	<ImageView android:id="@android:id/icon" android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:layout_weight="1" />
	<Button android:text="Select a photo" android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:onClick="pickPhoto" />
	<Button android:text="Upload photo" android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:onClick="uploadPhoto" />
</LinearLayout>

MainActivity.java

package com.webile.upload;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.InputStreamReader;
import java.util.Date;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.ByteArrayBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;

public class MainActivity extends Activity {

	private static final int SELECT_PICTURE = 0;
	private ImageView imageView;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        imageView = (ImageView) findViewById(android.R.id.icon);
    }
    
    public void pickPhoto(View view) {
    	//TODO: launch the photo picker
    	Intent intent = new Intent();
    	 intent.setType("image/*");
    	 intent.setAction(Intent.ACTION_GET_CONTENT);
    	 startActivityForResult(Intent.createChooser(intent,
    	 "Select Picture"), SELECT_PICTURE);
    	
    }
    
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    	super.onActivityResult(requestCode, resultCode, data);
    	if(resultCode == RESULT_OK) {
    		Bitmap bitmap = getPath(data.getData());
    		imageView.setImageBitmap(bitmap);
    	}
    }
    
    private Bitmap getPath(Uri uri) {

		String[] projection = { MediaStore.Images.Media.DATA };
		Cursor cursor = managedQuery(uri, projection, null, null, null);
		int column_index = cursor
				.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
		cursor.moveToFirst();
		String filePath = cursor.getString(column_index);
		cursor.close();
		// Convert file path into bitmap image using below line.
		Bitmap bitmap = BitmapFactory.decodeFile(filePath);
		
		return bitmap;
	}
    
    public void uploadPhoto(View view) {
    	try {
			executeMultipartPost();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    }
    
    public void executeMultipartPost() throws Exception {

		try {

			ByteArrayOutputStream bos = new ByteArrayOutputStream();
			
			BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
			
			Bitmap bitmap = drawable.getBitmap();

			bitmap.compress(CompressFormat.JPEG, 50, bos);

			byte[] data = bos.toByteArray();

			HttpClient httpClient = new DefaultHttpClient();

			HttpPost postRequest = new HttpPost(

			"http://192.168.1.107:8888/files/upload_file.php");

			String fileName = String.format("File_%d.png",new Date().getTime());
			ByteArrayBody bab = new ByteArrayBody(data, fileName);

			// File file= new File("/mnt/sdcard/forest.png");

			// FileBody bin = new FileBody(file);

			MultipartEntity reqEntity = new MultipartEntity(

			HttpMultipartMode.BROWSER_COMPATIBLE);

			reqEntity.addPart("file", bab);

			postRequest.setEntity(reqEntity);
			int timeoutConnection = 60000;
			HttpParams httpParameters = new BasicHttpParams();
			HttpConnectionParams.setConnectionTimeout(httpParameters,
					timeoutConnection);
			int timeoutSocket = 60000;
			HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
			HttpConnectionParams.setTcpNoDelay(httpParameters, true);

			HttpResponse response = httpClient.execute(postRequest);

			BufferedReader reader = new BufferedReader(new InputStreamReader(

			response.getEntity().getContent(), "UTF-8"));

			String sResponse;

			StringBuilder s = new StringBuilder();

			while ((sResponse = reader.readLine()) != null) {

				s = s.append(sResponse);

			}

			System.out.println("Response: " + s);

		} catch (Exception e) {

			// handle exception here
			e.printStackTrace();

			// Log.e(e.getClass().getName(), e.getMessage());

		}

	}
}