我不知道如何从之前发布的适配器类加载图像但我没有得到任何帮助解决问题的代码请通过异步帮助我代码请有人知道解决方案。我在同一个问题上挣扎了两天。
公共类NewsRowAdapter扩展了ArrayAdapter {
/*private DisplayImageOptions options;
ImageLoader imageLoader;*/
Bitmap bitmap = null;
private Activity activity;
private List<Item> items;
private Item objBean;
private int row;
public NewsRowAdapter(Activity act, int resource, List<Item> arrayList)
{
super(act, resource, arrayList);
this.activity = act;
this.row = resource;
this.items = arrayList;
/*options = new DisplayImageOptions.Builder().showStubImage(R.drawable.blank).showImageForEmptyUrl(R.drawable.blank).cacheInMemory().cacheOnDisc().build();
imageLoader = ImageLoader.getInstance();
*/
}
@Override
public View getView(final int position, View convertView, ViewGroup parent)
{
View view = convertView;
final ViewHolder holder;
if (view == null)
{
LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(row, null);
holder = new ViewHolder();
view.setTag(holder);
} else
{
holder = (ViewHolder) view.getTag();
}
if ((items == null) || ((position + 1) > items.size()))
return view;
objBean = items.get(position);
holder.tvTitle = (TextView) view.findViewById(R.id.tvtitle);
holder.tvDesc = (TextView) view.findViewById(R.id.tvdesc);
holder.tvDate = (TextView) view.findViewById(R.id.tvdate);
holder.imgView = (ImageView) view.findViewById(R.id.image);
holder.pbar = (ProgressBar) view.findViewById(R.id.pbar);
if (holder.tvTitle != null && null != objBean.getTitle() && objBean.getTitle().trim().length() > 0)
{
holder.tvTitle.setText(Html.fromHtml(objBean.getTitle()));
}
if (holder.tvDesc != null && null != objBean.getDesc() && objBean.getDesc().trim().length() > 0)
{
holder.tvDesc.setText(Html.fromHtml(objBean.getDesc()));
}
if (holder.tvDate != null && null != objBean.getPubdate() && objBean.getPubdate().trim().length() > 0)
{
holder.tvDate.setText(Html.fromHtml(objBean.getPubdate()));
}
if (holder.imgView != null)
{
if (null != objBean.getLink() && objBean.getLink().trim().length() > 0)
{
final ProgressBar pbar = holder.pbar;
pbar.setVisibility(View.INVISIBLE);
//---------CHANGES MADE FOR LOADING IMAGE----------//
Log.d("IMAGE NULL----------", objBean.getLink());
class ImageLoading extends AsyncTask<String, Void, Bitmap>
{
@Override
protected Bitmap doInBackground(String... urls)
{
return null;
}
@Override
protected void onPostExecute(Bitmap result)
{
super.onPostExecute(result);
}
}
/*imageLoader.init(ImageLoaderConfiguration.createDefault(activity));
{
imageLoader.displayImage(objBean.getLink(), holder.imgView, options, new ImageLoadingListener()
{
@Override
public void onLoadingComplete()
{
pbar.setVisibility(View.INVISIBLE);
}
@Override
public void onLoadingFailed()
{
pbar.setVisibility(View.INVISIBLE);
}
@Override
public void onLoadingStarted()
{
pbar.setVisibility(View.VISIBLE);
}
});
} */
} else
{
holder.imgView.setImageResource(R.drawable.ic_launcher);
}
}
return view;
}
public class ViewHolder
{
public TextView tvTitle, tvDesc, tvDate;
public ImageView imgView;
public ProgressBar pbar;
}
}