Json กับการดึงรูปภาพมาใช้ครับ ดึงข้อมูลมาใช้ได้แล้ว แต่ภาพยังดึงขึ้นมาไม่ได้ครับ

package com.example.thaiherb;


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.HashMap;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;


import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
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.json.JSONException;
import org.json.JSONObject;

import android.os.Bundle;
import android.os.StrictMode;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.widget.Button;
import android.widget.TextView;
import java.util.HashMap;
import android.widget.ImageView;

import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;


public class DetailActivity extends Activity {
	
    
    @SuppressLint("NewApi")
	@Override
	
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail);

        // Permission StrictMode
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }
        
        showInfo();
        
        // btnBack
        final Button btnBack = (Button) findViewById(R.id.btnBack);
        // Perform action on click
        btnBack.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
				Intent newActivity = new Intent(DetailActivity.this,MainActivity.class);
				startActivity(newActivity);
            }
        });
        
    }
    
    public void showInfo()
    {
    	
    	final TextView tFilesID = (TextView)findViewById(R.id.txtFilesID);
    	final TextView tNameTH = (TextView)findViewById(R.id.txtNameTH);
    	final TextView tNameEN = (TextView)findViewById(R.id.txtNameEN);
    	final TextView tDes = (TextView)findViewById(R.id.txtDes);
    	final ImageView FilesName = (ImageView) findViewById(R.id.imageView1);
    	
    	String url = "http://www.thaiherbdb.com/testsearch.php";
    
    	
    	Intent intent= getIntent();
    	final String FilesID = intent.getStringExtra("FilesID"); 

		List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("sFilesID", FilesID));
        
      
        
    	String resultServer  = getHttpPost(url,params);
   	
        String strFilesID = "";
    	String strNameTH = "";
    	String strNameEN = "";
    	String strDes = "";
    	JSONObject c;
		try {
			c = new JSONObject(resultServer);
			strFilesID = c.getString("FilesID");
			strNameTH = c.getString("NameTH");
			strNameEN = c.getString("NameEN");
			strDes = c.getString("Des");
			
			
			if(!strFilesID.equals(""))
			{
				tFilesID.setText(strFilesID);
				tNameTH.setText(strNameTH);
				tNameEN.setText(strNameEN);
				tDes.setText(strDes);
				
			}
			else
			{
				tFilesID.setText("-");
				tNameTH.setText("-");
				tNameEN.setText("-");
				tDes.setText("-");
					
			}
			
			
		
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
    }
    public String getHttpPost(String url,List<NameValuePair> params) {
		StringBuilder str = new StringBuilder();
		HttpClient client = new DefaultHttpClient();
		HttpPost httpPost = new HttpPost(url);
		
		try {
			httpPost.setEntity(new UrlEncodedFormEntity(params));
			HttpResponse response = client.execute(httpPost);
			StatusLine statusLine = response.getStatusLine();
			int statusCode = statusLine.getStatusCode();
			if (statusCode == 200) { // Status OK
				HttpEntity entity = response.getEntity();
				InputStream content = entity.getContent();
				BufferedReader reader = new BufferedReader(new InputStreamReader(content));
				String line;
				while ((line = reader.readLine()) != null) {
					str.append(line);
				}
			} else {
				Log.e("Log", "Failed to download result..");
			}
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return str.toString();
	}

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