使用分頁將圖像url加載到項目ListView中Android

Question

I m trying to make a lisView with two textView and an imageView (that come as a url Sting) on each item at the list but, the list is not scrolling as good as I want, because its taking too long to load the image url. Im using an AsyncTask class for loading the the image but still it dosen t看起來不錯。 這裏是我的代碼以int一個ArrayAdapter類：

public class MySimpleArrayAdapter extends ArrayAdapter<Movie> { 

final private Context context; 
final private Movie[] movies; 
ImageView movieIcon; 
TextView name, description; 
Bitmap bitmap; 

public MySimpleArrayAdapter(Context context, Movie[] movies) { 
    super(context,R.layout.item_in_movielist, movies); 
    this.context = context; 
    this.movies = movies; 
} 

@Override 
public View getView(final int position, View convertView, ViewGroup parent) { 


    LayoutInflater inflater = (LayoutInflater) context 
      .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    View rowView = inflater.inflate(R.layout.item_in_movielist, parent, false); 


    name = (TextView) rowView.findViewById(R.id.tvMovieName); 
    description = (TextView) rowView.findViewById(R.id.tvMovieDescription); 
    movieIcon = (ImageView) rowView.findViewById(R.id.ivMovieIcon); 

    GetImageAsync getImageAsync = new GetImageAsync(); 
    getImageAsync.imageView = movieIcon; 

    name.setText(movies[position].getMovieName()); 
    description.setText(movies[position].getMovieDescription()); 

    getImageAsync.execute(position); 

    return rowView; 
} 

public class GetImageAsync extends AsyncTask<Integer, Void, Bitmap> { 
    public ImageView imageView; 
    @Override 
    protected void onPostExecute(Bitmap bitmap1) { 
     imageView.setImageBitmap(bitmap1); 
    } 

    @Override 
    protected Bitmap doInBackground(Integer... params) { 
     URL url = null; 
     try { 
      url = new URL(movies[params[0]].getMovieImgURL()); 
      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
      connection.setDoInput(true); 
      connection.connect(); 
      InputStream input = connection.getInputStream(); 
      return BitmapFactory.decodeStream(input); 

     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
     return null; 
    } 
} 

}

我瞭解，這是不的方式做到這一點，我在找改變我的代碼爲「尋呼」和我想正確地做。 任何提示我能做些什麼？

P.S 如果您可以告訴我如何將Paging添加到此代碼中，那將非常棒。

謝謝！

Answer 1

Picasso.with(mContext) 
      .load(img.get(pos).replaceAll(" ", "%20")) 
      .placeholder(R.drawable.ic_launcher) 
      .error(R.drawable.ic_launcher) 
      .noFade().resize(70, 70) 
      .into(v.image);