Liste görünümü performansını optimize edin

Question

Listem (dikey) var ve her liste öğesinin yatay liste görünümü (yatay) var. Yani

Yani, büyük bir performans isabet yoktur

Ama dikey listesi de GetView() aradığını satırda yatay scrollview kaydırma zaman sorunudur ... .. , herhangi biri

public class GridViewAdapter extends BaseAdapter { 

    List<List<Hotel>> gridDatasource; 
    Context mContext; 

    public GridViewAdapter(List<List<Hotel>> gridDatasource, Context context) { 
     this.gridDatasource = gridDatasource; 
     this.mContext = context; 
    } 

    public void setGridDatasource(List<List<Hotel>> gridDatasource) { 
     this.gridDatasource = gridDatasource; 
    } 

    @Override 
    public int getCount() { 
     if (gridDatasource == null) { 
      return 0; 
     } 
     return gridDatasource.size(); 
    } 

    @Override 
    public Object getItem(int position) { 
     return gridDatasource.get(position); 
    } 

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

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     GridViewHolder holder; 
     if (convertView == null) { 
      LayoutInflater inflater = (LayoutInflater) mContext 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = inflater.inflate(R.layout.gridview_table_cell, 
        null); 

      holder = new GridViewHolder(); 
      holder.headerView = (TextView) convertView 
        .findViewById(R.id.gridViewRowHeader); 
      holder.listView = (HorizontalListView) convertView 
        .findViewById(R.id.gridViewHorizontalListView); 
      convertView.setTag(holder); 
     } else { 
      holder = (GridViewHolder) convertView.getTag(); 
      Log.d("TAG", "Reaching Here"); 
     } 
     holder.headerView.setText("Hello From Sandeep"); 
     HorizontalListViewAdapter adapter = new HorizontalListViewAdapter(
       mContext, gridDatasource.get(position)); 
     holder.listView.setAdapter(adapter); 
     return convertView; 
    } 

} 

static class GridViewHolder { 
    TextView headerView; 
    HorizontalListView listView; 
} 

public class HorizontalListViewAdapter extends BaseAdapter { 
    Context mContext; 
    List<Hotel> mHotels; 

    public HorizontalListViewAdapter(Context context, List<Hotel> hotels) { 
     this.mContext = context; 
     this.mHotels = hotels; 
    } 

    @Override 
    public int getCount() { 
     if (mHotels == null) { 
      return 0; 
     } 
     return mHotels.size(); 
    } 

    @Override 
    public Object getItem(int position) { 
     return mHotels.get(position); 
    } 

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

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     HotelCell cell = (HotelCell) convertView; 
     if (cell == null) { 
      cell = new HotelCell(mContext); 
     } else { 
      Log.d("TAG", "Reached here 2"); 
     } 
     cell.setHotel(mHotels.get(position)); 
     cell.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       Intent intent = new Intent(mContext, 
         HotelDetailActivity.class); 
       intent.putExtra("DATA", ((HotelCell) v).getHotel()); 
       startActivity(intent); 
      } 
     }); 
     cell.setPadding(0, 0, 10, 0); 
     return cell; 
    } 
} 

Answer 1

Sevgili i My bu Kod

public View getView(final int position, View convertView, ViewGroup parent) 
    { 
     View v = convertView; 
     ViewHolder holder; 

     if (v == null) 
     { 
      v = inflater.inflate(R.layout.custom_image_layout, null); 
      holder = new ViewHolder(); 
      holder.txtFileName = (TextView) v.findViewById(R.id.txtFileName); 
      holder.imageView = (ImageView) v.findViewById(R.id.imgView); 
      v.setTag(holder); 
     } else 
     { 
      holder = (ViewHolder) v.getTag(); 
     } 
holder.imageView.setImageBitmap(bm); 
holder.txtFileName.setText(""+nameoffile); 
return v; 
    } 
    static class ViewHolder 
    { 
     public ImageView imageView; 
     public TextView txtFileName; 
    } 

Kullanım Amacı Hol denemek önermek .. bana bunu daha iyi bir çözüm anlatmak der Sınıf