添加图像

Question

我有这样的代码：

public class ListaPrzepisow extends ListActivity { 
// Progress Dialog 
private ProgressDialog pDialog; 

// Creating JSON Parser object 
JSONParser jParser = new JSONParser(); 

ArrayList<HashMap<String, String>> recipesList; 

// url to get all recipes list 
private static String url_all_recipes = "http://web.onlyway.pl/wolowinkadb/get_all_recipes.php"; 

// JSON Node names 
private static final String TAG_SUCCESS = "success"; 
private static final String TAG_recipeS = "recipes"; 
private static final String TAG_PID = "pid"; 
private static final String TAG_NAME = "name"; 
private static final String TAG_AUTOR= "autor"; 
private static final String TAG_FOTKA= "zdjecie"; 

// recipes JSONArray 
JSONArray recipes = null; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    // Hashmap for ListView 
    recipesList = new ArrayList<HashMap<String, String>>(); 

    // Loading recipes in Background Thread 
    new LoadAllrecipes().execute(); 

    // Get listview 
    ListView lv = getListView(); 

    // on seleting single recipe 
    // launching Edit recipe Screen 
    /* 
    lv.setOnItemClickListener(new OnItemClickListener() { 

     @Override 
     public void onItemClick(AdapterView<?> parent, View view, 
       int position, long id) { 

      // getting values from selected ListItem 
      String pid = ((TextView) view.findViewById(R.id.pid)).getText() 
        .toString(); 

      // Starting new intent 
      Intent in = new Intent(getApplicationContext(), 
        EditrecipeActivity.class); 
      // sending pid to next activity 
      in.putExtra(TAG_PID, pid); 

      // starting new activity and expecting some response back 
      startActivityForResult(in, 100); 

     } 


    }); 
    */ 

} 

// Response from Edit recipe Activity 
@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    // if result code 100 
    if (resultCode == 100) { 
     // if result code 100 is received 
     // means user edited/deleted recipe 
     // reload this screen again 
     Intent intent = getIntent(); 
     finish(); 
     startActivity(intent); 
    } 

} 

/** 
* Background Async Task to Load all recipe by making HTTP Request 
* */ 
class LoadAllrecipes extends AsyncTask<String, String, String> { 

    /** 
    * Before starting background thread Show Progress Dialog 
    * */ 
    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog = new ProgressDialog(ListaPrzepisow.this); 
     pDialog.setMessage("Loading recipes. Please wait..."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(false); 
     pDialog.show(); 
    } 

    /** 
    * getting All recipes from url 
    * */ 
    protected String doInBackground(String... args) { 
     // Building Parameters 
     List<NameValuePair> params = new ArrayList<NameValuePair>(); 
     // getting JSON string from URL 
     JSONObject json = jParser.makeHttpRequest(url_all_recipes, "GET", params); 

     // Check your log cat for JSON reponse 
     Log.d("All recipes: ", json.toString()); 

     try { 
      // Checking for SUCCESS TAG 
      int success = json.getInt(TAG_SUCCESS); 

      if (success == 1) { 
       // recipes found 
       // Getting Array of recipes 
       recipes = json.getJSONArray(TAG_recipeS); 

       // looping through All recipes 
       for (int i = 0; i < recipes.length(); i++) { 
        JSONObject c = recipes.getJSONObject(i); 

        // Storing each json item in variable 
        String id = c.getString(TAG_PID); 
        String name = c.getString(TAG_NAME); 
        String autor = c.getString(TAG_AUTOR); 
        String fotka = c.getString(TAG_FOTKA); 

        // creating new HashMap 
        HashMap<String, String> map = new HashMap<String, String>(); 

        // adding each child node to HashMap key => value 
        map.put(TAG_PID, id); 
        map.put(TAG_NAME, name); 
        map.put(TAG_AUTOR, autor); 
        map.put(TAG_FOTKA, fotka); 

        // adding HashList to ArrayList 
        recipesList.add(map); 
       } 
      } else { 
       // no recipes found 
       // Launch Add New recipe Activity 
       Intent i = new Intent(getApplicationContext(), 
         ListaPrzepisow.class); 
       // Closing all previous activities 
       i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
       startActivity(i); 
      } 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 

     return null; 
    } 

    /** 
    * After completing background task Dismiss the progress dialog 
    * **/ 
    protected void onPostExecute(String file_url) { 
     // dismiss the dialog after getting all recipes 
     pDialog.dismiss(); 
     // updating UI from Background Thread 
     runOnUiThread(new Runnable() { 
      public void run() { 
       /** 
       * Updating parsed JSON data into ListView 
       * */ 
       ListAdapter adapter = new SimpleAdapter(
         ListaPrzepisow.this, recipesList, 
         R.layout.recipeslist_layout, new String[] { TAG_PID, 
           TAG_NAME, TAG_AUTOR, TAG_FOTKA}, 
         new int[] { R.id.pid, R.id.name, R.id.Author, R.id.Thumb }); 
       // updating listview 
       setListAdapter(adapter); 

      } 
     }); 

    } 

} 
} 

在字符串fotka = c.getString（TAG_FOTKA）;我有网址形象。我怎么把它放到我的图像视图中。例如使用这个lib：https://github.com/koush/UrlImageViewHelper。

我试过很多办法做到这一点，但我坚持

Answer 1

好，我顺手拿了。我已经添加了我在延伸SimpleAdapter这样的适配器：

package com.app.beefmania; 

import java.io.IOException; 
import java.io.InputStream; 
import java.net.MalformedURLException; 
import java.net.URL; 
import java.net.URLConnection; 
import java.util.List; 
import java.util.Map; 

import com.koushikdutta.urlimageviewhelper.UrlImageViewHelper; 

import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.widget.ImageView; 
import android.widget.SimpleAdapter; 

public class MyAdapter extends SimpleAdapter { 

public MyAdapter(Context context, List<? extends Map<String, ?>> data, 
     int resource, String[] from, int[] to) { 
    super(context, data, resource, from, to); 
    // TODO Auto-generated constructor stub 
} 
@Override 
public void setViewImage(ImageView v, String value) { 
    UrlImageViewHelper.setUrlDrawable(v, value); 
} 

} 

而且一切工作蓖我previus代码;）