【发布时间】：2015-10-28 17:40:37
【问题描述】：
您好，我正在使用列表视图并将服务器中的图像显示到其中。
但问题是所有加载的图像都显示在最后一项中，而不是显示在各自的位置。
请帮我在相应的位置显示这些图像
public class Offer_adapter extends ArrayAdapter<String> {
Context context1;
String[] offer_title;
String[] offerimg1;
String[] mrp;
String[] offerprice;
String[] you_save;
String[] imgURLArray;
Bitmap bitmap;
ImageView offerimg;
int a;
LayoutInflater inflater1;
public Offer_adapter(Context context1, String[] offer_title, String[] offerimg1, String[] mrp, String[] you_save, String[] offerprice) {
super(context1, R.id.offer_list, offer_title);
this.context1 = context1;
this.offer_title = offer_title;
this.offerimg1 = offerimg1;
this.mrp = mrp;
this.offerprice = offerprice;
this.you_save = you_save;
}
private static class ViewHolder {
String offerimg;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder = null;
if (convertView == null) {
inflater1 = (LayoutInflater) context1.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater1.inflate(R.layout.offer_list, null);
viewHolder = new ViewHolder();
}
android.util.Log.v("abhi", "" + position);
imgURLArray = new String[position + 1];
for (int i = 0; i <= position; i++) {
android.util.Log.v("abhijit", "" + position);
imgURLArray[i] = "http://www.surun.co/preost/mod_offer/images/" + offerimg1[position];
android.util.Log.v("abhi", "" + imgURLArray[position]);
}
a=position;
viewHolder = (ViewHolder) convertView.getTag();
TextView offertitle = (TextView) convertView.findViewById(R.id.ofrtitle);
TextView offermrp = (TextView) convertView.findViewById(R.id.offeroriginal);
offermrp.setPaintFlags(offermrp.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
TextView offersave = (TextView) convertView.findViewById(R.id.saveoffer);
TextView ofrprice = (TextView) convertView.findViewById(R.id.priceoffer);
offerimg = (ImageView) convertView.findViewById(R.id.ofr_img);
offertitle.setText(offer_title[position]);
offermrp.setText("Original Price: \u20B9" + mrp[position]);
offersave.setText("You Save: \u20B9" + you_save[position]);
ofrprice.setText("Offer Price: \u20B9" + offerprice[position]);
// Bitmap imageBitmap = null;
new DownloadAsyncTask().execute(imgURLArray[position]);
Log.v("abhi","async");
return convertView;
}
private class DownloadAsyncTask extends AsyncTask<String, String, Bitmap> {
protected Bitmap doInBackground(String... args) {
try {
Log.v("abhi","in do background");
bitmap = BitmapFactory.decodeStream((InputStream) new URL(args[0]).getContent());
bitmap = Bitmap.createScaledBitmap(bitmap, 270, 375, true);
} catch (Exception e) {
e.printStackTrace();
}
return bitmap;
}
@Override
protected void onPostExecute(Bitmap bitmap) {
super.onPostExecute(bitmap);
if (bitmap !=null) {
offerimg.setImageBitmap(bitmap);
} else {
offerimg.setImageResource(R.drawable.nooffer);
}
}
}
}
所有图像都在最后一项中一个接一个地显示。我只是想在各自的位置上显示它。
【问题讨论】：
-
使用Picasso 缓存图像位图并将其加载到您的图像视图中。此外，您没有正确使用 viewholder 模式。
-
试试下面的链接：androidexample.com/…
-
先生，您能否在我的代码中给出一些建议，这对我来说非常重要