Android - ช่วยด้วยครับ ผมจะให้ถ่ายรูปแล้ว upload ขึ้น server ยังไงครับ

public class TakePhoto <export_main_activity> extends Activity implements View.OnClickListener{
	protected Button btnTakePhoto, btnUpload;
	protected ImageView imageview;
	protected String path_pic = null;
	protected boolean taken;
	protected static final String PHOTO_TAKEN	= "photo_taken";
	String up_name;
	Bitmap bitmap = null;
	TextView txtPhotoName;
	
		
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);        
        setContentView(R.layout.activity_takephoto);
       
        txtPhotoName = (TextView)findViewById(R.id.txtPhotoName);
        imageview = ( ImageView ) findViewById( R.id.imagePOI );
        btnTakePhoto = ( Button ) findViewById( R.id.btnTakePhoto );
        btnTakePhoto.setOnClickListener( this);
        btnUpload = ( Button ) findViewById( R.id.btnUpload);
        btnUpload.setOnClickListener(this);
        
      
        File file  = new File(Environment.getExternalStorageDirectory() + "/myPhoto/");
        if (!file.exists()) {
            try{
            	file.mkdirs();
            }catch(Exception e){
            	e.printStackTrace();
            }
        }
    }/////   end onCreate  //////
    
    @Override
	public void onClick(View v) {
    	if(v.getId()==R.id.btnTakePhoto){
    		
    		startCameraActivity();
    	}	
    	if(v.getId()==R.id.btnUpload){
        	if(SaveData())
        	{
        		// When Save Complete
        	}
    	}
	}
    
	protected void startCameraActivity(){
			SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
			String picTime = sdf.format(new Date(100));
			path_pic = Environment.getExternalStorageDirectory() + "/TravelThailandPhoto/"+picTime+".jpg";
			up_name = picTime+".jpg";
    	 	File file = new File(path_pic);
    	    Uri outputFileUri = Uri.fromFile( file );    	    	
    	    Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
    	    intent.putExtra( MediaStore.EXTRA_OUTPUT, outputFileUri );    	    	
    	    startActivityForResult( intent, 0 );
    }
    
	
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {	
    	//Log.i( "resultcode", "resultCode: " + resultCode );
    	switch( resultCode )
    	{
    		case 0:
    			Log.i( "Tag", "User cancelled" );
    			break;
    			
    		case -1:    	
    			onPhotoTaken();
    			break;
    	}
    }
    protected void onPhotoTaken(){
    	
    	taken = true;
        bitmap = decodeFile(path_pic);   	
    	imageview.setImageBitmap(bitmap);
    }
    
    @Override
    protected void onSaveInstanceState( Bundle outState ) {
        outState.putBoolean( TakePhoto.PHOTO_TAKEN, taken );
    }
    @Override 
    protected void onRestoreInstanceState( Bundle savedInstanceState){
        Log.i( "Tag", "onRestoreInstanceState()");
        if( savedInstanceState.getBoolean( TakePhoto.PHOTO_TAKEN ) ) {
        	onPhotoTaken();
        }
    }
    
    public Bitmap decodeFile(String filePath) {
		// Decode image size
		BitmapFactory.Options o = new BitmapFactory.Options();
		o.inJustDecodeBounds = true;
		BitmapFactory.decodeFile(filePath, o);

		// The new size we want to scale to
		final int REQUIRED_SIZE = 1024;

		// Find the correct scale value. It should be the power of 2.
		int width_tmp = o.outWidth, height_tmp = o.outHeight;
		int scale = 1;
		while (true) {
			if (width_tmp < REQUIRED_SIZE && height_tmp < REQUIRED_SIZE)
				break;
			width_tmp /= 2;
			height_tmp /= 2;
			scale *= 2;
		}

		// Decode with inSampleSize
		BitmapFactory.Options o2 = new BitmapFactory.Options();
		o2.inSampleSize = scale;
		Bitmap bmp = BitmapFactory.decodeFile(filePath, o2);
		return bmp;
		//imgView.setImageBitmap(bitmap);

	}

	public boolean SaveData()
    {
    	
        // txtUsername,txtPassword,txtName,txtEmail,txtTel
        final EditText txtPhotoName = (EditText) findViewById(R.id.txtPhotoName);
        final EditText txtPhotoDetail = (EditText) findViewById(R.id.txtPhotoDetail);

     		String url = "http://travelthailand.incasible.com/mobile_savepoi.php";
     		
    		List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("tPhotoName", txtPhotoName.getText().toString()));
            params.add(new BasicNameValuePair("tPhotoDetail", txtPhotoDetail.getText().toString()));

           // params.add(new BasicNameValuePair("tMid", MemID.toString()));

            
  
        	 String resultServer  = Helper.getHttpPost(url,params);
            
            /*** Default Value ***/
        	String strStatusID = "0";
        	String strError = "Unknow Status!";
        	        	
        	JSONObject c;
			try {
				c = new JSONObject(resultServer);
            	strStatusID = c.getString("StatusID");
            	strError = c.getString("Error");
			} catch (JSONException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
			// Prepare Save Data
			if(strStatusID.equals("0"))
			{
                ad.setMessage(strError);
                ad.show();
			}
			else
			{
				Toast.makeText(TakePhoto.this, "บันทึก Photo เรียบร้อยแล้ว.", Toast.LENGTH_SHORT).show();
				txtPhotoName.setText("");

			}
       	            
    
    	return true;
    }
	
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}