listview에서 세부 활동으로 이미지를로드하는 방법

Question

안녕하세요. JSON 텍스트와 미리보기 이미지를로드하는 listview가 있습니다. http://www.androidhive.info/2012/02/android-custom-listview-with-image-and-text/에서 자습서의 코드를 사용하고 이것을 xml에서 json으로 변환했습니다.

텍스트 및 이미지의 구문 분석은 내 목록보기에서 작동하지만 이제는 세부보기와 같은 두 번째 활동을 추가했습니다. 여기서도 동일한 이미지를 미리보기 이미지로 표시하려고합니다. lazylist 자습서의 ImageLoader 클래스를 사용합니다.

문제점은 세부보기에서이 이미지를로드 할 수 없다는 것입니다. 누군가이 작품을 만드는 방법에 대한 제안이 있습니까?

내 코드 CustomizedListView :

`package com.example.androidhive; 

    import java.util.ArrayList; 
    import java.util.HashMap; 

    import org.json.JSONArray; 
    import org.json.JSONException; 
    import org.json.JSONObject; 
    import org.w3c.dom.Document; 

import org.w3c.dom.Element; 
import org.w3c.dom.NodeList; 

import com.example.androidhive.JSONParser; 

import android.app.Activity; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.graphics.drawable.Drawable; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ImageView; 
import android.widget.TextView; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.ListView; 

public class CustomizedListView extends Activity { 


    // url om request te maken 
    private static String URL = "http://www.iappministrator.com/OBDE/webservice/android_deelnemers_items.php"; 



    // JSON Node namen 
    static final String TAG_ITEMS = "items"; 
    static final String TAG_TITLE = "title"; 
    static final String TAG_MESSAGE = "message"; 
    static final String TAG_DATE = "date"; 
    static final String TAG_IMAGES = "images"; 

    // Nieuws JSONArray 
    JSONArray newsArray = null; 

    ListView list; 
    LazyAdapter adapter; 

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

     // Hashmap voor listView 
     ArrayList<HashMap<String, String>> newsList = new ArrayList<HashMap<String, String>>(); 

     // Maak een JSON Parser instance 
     JSONParser jParser = new JSONParser(); 

     // Pakt JSON string uit URL 
     JSONObject json = jParser.getJSONFromUrl(URL); 

     try{ 
      // Pakt de Array van Nieuwsartikelen 
      newsArray = json.getJSONArray(TAG_ITEMS); 

      // Loop door alle Nieuwsartikels 
      for(int i=0; i < newsArray.length(); i++){ 
       JSONObject c = newsArray.getJSONObject(i); 

       // Het plaatsen van elk json item in variabele 
       String title = c.getString(TAG_TITLE); 
       String message = c.getString(TAG_MESSAGE); 
       String date = c.getString(TAG_DATE); 
       String images = c.getString(TAG_IMAGES); 

       // maak een nieuwe HashMap 
       HashMap<String, String> map = new HashMap<String, String>(); 

       // voeg elk item child node in de Hashmap -> value 
       map.put(TAG_TITLE, title); 
       map.put(TAG_MESSAGE, message); 
       map.put(TAG_DATE, date); 
       map.put(TAG_IMAGES, images); 


       // voeg de HashList toe aan ArrayList 
       newsList.add(map); 
      } 
     } catch(JSONException e){ 
      e.printStackTrace(); 
     } 


     list=(ListView)findViewById(R.id.list); 

     adapter=new LazyAdapter(this, newsList, R.layout.list_row, 
       new String[]{TAG_TITLE, TAG_MESSAGE, TAG_DATE, TAG_IMAGES}, new int[] { 
       R.id.title, R.id.artist, R.id.duration, R.id.list_image});   
     list.setAdapter(adapter); 


     // Click event for single list row 
     list.setOnItemClickListener(new OnItemClickListener() { 

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


       String title = ((TextView) view.findViewById(R.id.title)).getText().toString(); 
       String date = ((TextView) view.findViewById(R.id.duration)).getText().toString(); 
       String message = ((TextView) view.findViewById(R.id.artist)).getText().toString(); 
       //String images = ((TextView) view.findViewById(R.id.list_image)).getText().toString(); 
       //ImageView thumb_image = (ImageView) view.findViewById(R.id.thumbnail); // thumb image 
       String images = ((ImageView)view.findViewById(R.id.list_image)).getImageMatrix().toString(); 
       //String images = ((ImageView)view.findViewById(R.id.list_image)).toString(); 
       //String images = ((ImageView)view.findViewById(R.id.list_image)).getContext().toString(); 

       // Start de nieuwe intent 

       Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class); 
       //Bitmap bitmap = (Bitmap) in.getParcelableExtra(TAG_IMAGES); 

       in.putExtra(TAG_TITLE, title); 
       in.putExtra(TAG_DATE, date); 
       in.putExtra(TAG_MESSAGE, message); 
       in.putExtra(TAG_IMAGES, images); 
       startActivity(in); 

      } 
     });  
    } 
}` 

secondActivity의 코드 :

package com.example.androidhive; 

import java.io.BufferedInputStream; 
import java.io.File; 
import java.io.IOException; 
import java.io.InputStream; 
import java.net.URL; 
import java.net.URLConnection; 
import java.util.HashMap; 

import com.nostra13.example.universalimageloader.ImageGridActivity.ImageAdapter; 

import android.app.Activity; 
import android.content.Intent; 
import android.content.res.Resources; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.drawable.BitmapDrawable; 
import android.graphics.drawable.Drawable; 
import android.net.Uri; 
import android.os.Bundle; 
import android.util.Log; 
import android.widget.ImageView; 
import android.widget.TextView; 

public class SingleMenuItemActivity extends Activity { 

    // JSON node keys 
    private static final String TAG_TITLE = "title"; 
    private static final String TAG_MESSAGE = "message"; 
    private static final String TAG_DATE = "date"; 
    private static final String TAG_IMAGES = "images"; 

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


     // getting intent data 
     Intent in = getIntent(); 

     // Get JSON values from previous intent 
     String title = in.getStringExtra(TAG_TITLE); 
     String date = in.getStringExtra(TAG_DATE); 
     String message = in.getStringExtra(TAG_MESSAGE); 
     String images = in.getStringExtra(TAG_IMAGES); 
     //Bitmap bitmap = in.getParcelableExtra(TAG_IMAGES); 
     //ImageView thumb_image=(ImageView)vi.findViewById(R.id.list_image); 

     // Displaying all values on the screen 
     TextView lblTitle = (TextView) findViewById(R.id.title_label); 
     TextView lblDate = (TextView) findViewById(R.id.date_label); 
     TextView lblMessage = (TextView) findViewById(R.id.message_label); 
     ImageView lblImages = (ImageView) findViewById(R.id.images_label); 
     //TextView lblImages = (TextView) findViewbyId(R.id.images_label); 

     // loader image 
     //int loader = R.drawable.loader; 
     System.out.println("Ja en nu werkt het niet meer"); 

     // image url 
     //String image_url = "http://d24w6bsrhbeh9d.cloudfront.net/photo/5614379_460s.jpg"; 

     //ImageLoader imgLoader = new ImageLoader(getApplicationContext()); 
     //-imgLoader.DisplayImage(song.get(CustomizedListView.TAG_IMAGES), lblImages); 
     System.out.println("Error? haha bam jammer dan:"); 
     //imgLoader.DisplayImage(images, lblImages); 
     System.out.println("Plaatjes?:"+ images); 

     lblTitle.setText(title); 
     lblDate.setText(date); 
     lblMessage.setText(message); 
     //lblImages.setImageURI(Uri.parse(images)); 

     //ImageLoader imageLoader = new ImageLoader(getApplicationContext()); 
     //imageLoader.DisplayImage(images,lblImages); 

     //lblImages.setImageResource(images); 
     //imageLoader.displayImage(images); 
     //lblImages.setImageBitmap(bitmap); 
     //lblImages.setImageResource(R.drawable.bitmap); 
     //lblImages.setImageResource(images); 
     /*if (d instanceof BitmapDrawable) { 
      Bitmap bm = ((BitmapDrawable)d).getBitmap(); 
      //Maybe more code here? 
      lblImages.setImageBitmap(bm); 
    }*/ 
     //lblImages.setImageResource(images); 
     //lblImages.DisplayImage(images); 
     //lblImages.DisplayImage(images); 
    } 
} 

lazyAdapter :

`package com.example.androidhive; 

import java.util.ArrayList; 
import java.util.HashMap; 

import android.app.Activity; 
import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.ImageView; 
import android.widget.TextView; 

public class LazyAdapter extends BaseAdapter { 

    private Activity activity; 
    private ArrayList<HashMap<String, String>> data; 
    private static LayoutInflater inflater=null; 
    public ImageLoader imageLoader; 

    public LazyAdapter(Activity a, ArrayList<HashMap<String, String>> d, int listRow, String[] strings, int[] is) { 
     activity = a; 
     data=d; 
     inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     imageLoader=new ImageLoader(activity.getApplicationContext()); 
    } 

    public int getCount() { 
     return data.size(); 
    } 

    public Object getItem(int position) { 
     return position; 
    } 

    public long getItemId(int position) { 
     return position; 
    } 

    public View getView(int position, View convertView, ViewGroup parent) { 
     View vi=convertView; 
     if(convertView==null) 
      vi = inflater.inflate(R.layout.list_row, null); 

     TextView title = (TextView)vi.findViewById(R.id.title); // title 
     TextView artist = (TextView)vi.findViewById(R.id.artist); // artist name 
     TextView duration = (TextView)vi.findViewById(R.id.duration); // duration 
     ImageView thumb_image=(ImageView)vi.findViewById(R.id.list_image); // thumb image 

     HashMap<String, String> song = new HashMap<String, String>(); 
     song = data.get(position); 

     // Setting all values in listview 
     title.setText(song.get(CustomizedListView.TAG_TITLE)); 
     artist.setText(song.get(CustomizedListView.TAG_MESSAGE)); 
     duration.setText(song.get(CustomizedListView.TAG_DATE)); 
     imageLoader.DisplayImage(song.get(CustomizedListView.TAG_IMAGES), thumb_image); 
     return vi; 
    } 
}` 

Answer 1

그냥 사용자 정의 목록보기이 추가

,815,

그리고 당신은 하나의 메뉴 항목 클래스는과 같이 추가 및 디스플레이 이미지를 얻을에 : 여기

Intent in = getIntent(); 
final String image_url = in.getStringExtra(TAG_IMAGES); 


ImageView imgv = (ImageView) findViewById(R.id.ID); 
ImageLoader imageLoader = new ImageLoader(getApplicationContext()); 
imageLoader.DisplayImage(iamge_url, imgv); 

Answer 2

내가 당신에게 (적어도 내 생각에)이 할 수있는 많은 청소기 방법을 제안한다.

public class ListFiles extends ListActivity { 
private List<String> dirEntries = new ArrayList<String>(); 
File[] files; 

@Override 
public void onCreate(Bundle bundle) { 
    super.onCreate(bundle); 

    Intent i = getIntent(); 
    File dir = new File(i.getStringExtra("directory")); 

    if (dir.isDirectory()) 
     files = dir.listFiles(); 

    this.dirEntries.clear(); 

    for (File file : files) 
     this.dirEntries.add(file.getPath()); 

    ArrayAdapter<String> dirList = new ArrayAdapter<String>(this, R.layout.file_row, this.dirEntries); 
    this.setListAdapter(dirList); 
} 

@Override 
public void onListItemClick(ListView lv, View v, int pos, long id) { 
    File clickedFile = new File(this.dirEntries.get(pos)); 
    Intent i = getIntent(); 
    //Detect what view was clicked 
    i.putExtra("clickedFile", clickedFile.toString()); 
    setResult(RESULT_OK, i); 
    finish(); 
} 

} 여기

가 클릭 된 뷰 자세한 내용은 코드입니다 : 나는 '내 코드에서

public class ImageManipulation extends Activity { 
static final String CAMERA_PIC_DIR = "/DCIM/CAMERA"; 
ImageView image; 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.board); 

    image = new ImageView(this); 
    this.addContentView(image, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); 
    String dir = Environment.getExternalStorageDirectory().getAbsolutePath() + CAMERA_PIC_DIR; 

    Intent i = new Intent(this, ListFiles.class); 
    i.putExtra("directory", dir); 

    startActivityForResult(i, 0); 
} 

@Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if ((requestCode == 0) && (resultCode == RESULT_OK)) { 
     String tmp = data.getExtras().getString("clickedFile"); 
     Bitmap bmp = BitmapFactory.decodeFile(tmp); 
     processImage(bmp); 
    } 
} 

private void processImage(Bitmap bmp) { 


    image.setImageBitmap(bmp); 
} 

}

이 모든 뷰를 나열하는 코드가 될 것입니다 난 목록보기에 대한 표준 어댑터를 사용하지만 당신이 한 짓을 적응하는 것은 매우 쉽습니다 확신합니다. 행운을 빌어 요 !!