listView 加载网络图片
2013-01-21 11:25:07| 分类:
android
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public class DownloadImagesTask extends AsyncTask<ImageView, Void, Drawable> {
ImageView imageView = null;
@Override
protected Drawable doInBackground(ImageView... imageViews) {
this.imageView = imageViews[0];
return download_Image((String)imageView.getTag());
}
@Override
protected void onPostExecute( Drawable result) {
imageView.setBackgroundDrawable(result);
}
private Drawable download_Image(String imageid) {
drawable=new ImageUtils(context).downloadAndShowImageth(imageid);
return drawable;
}
}
使用:viewHolder.image.setTag(imageid);
new DownloadImagesTask().execute(viewHolder.image);
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