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私はリストビュー、行、2つのテキストと1つの削除ボタンを持っています。しかし時には削除された別のアイテムはクリックされません。私はリストに正しいIDをチェックしました。私はRetrofitを使用して、私はちょうど私が削除ボタンをクリックし、ı使用notifyDataSetChanged（）;リストは（setFavoriteMerchant（））スクロールが間違った位置になったときのリストビュー
public class FavoriteMerchantActivity extends AppCompatActivity implements IButtonCliclListener {
FavoriteMerchantAdapter favoriteMerchantAdapter;
@InjectView(R.id.ListFavoriteMerchant)
ListView ListFavoriteMerchant;
AlertDialogHelper alertDialogHelper;
List<ItemsFavoriteMerchant> list;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_favorite_merchant);
ButterKnife.inject(this);
alertDialogHelper = new AlertDialogHelper(this);
getFavoriteMerchant();
}
@Override
public void onClick(View v) {
int itemIndex = (int) v.getTag();
setFavoriteMerchant(itemIndex);
alertDialogHelper.showAlertSuccess("Removed from your favorites!");
}
void getFavoriteMerchant() {
Call<FavoriteMerchant> call = ToolApi.getApi().getFavoriteMerchant(BaseService.TOKEN);
call.enqueue(new Callback<FavoriteMerchant>() {
@Override
public void onResponse(Response<FavoriteMerchant> response, Retrofit retrofit) {
if (response.body() != null) {
FavoriteMerchant favoriteMerchant = response.body();
Integer errorCode = favoriteMerchant.getStatus().getErrorCode();
if (errorCode == 0) {
list = favoriteMerchant.getItems();
favoriteMerchantAdapter = new FavoriteMerchantAdapter(FavoriteMerchantActivity.this, alertDialogHelper, favoriteMerchant, list, getApplicationContext());
ListFavoriteMerchant.setAdapter(favoriteMerchantAdapter);
}
} else {
startActivity(getIntent());
alertDialogHelper.showAlertError("Connection error...");
}
}
@Override
public void onFailure(Throwable t) {
startActivity(getIntent());
alertDialogHelper.showAlertError("Connection error...");
}
});
}
void setFavoriteMerchant(final int index) {
Call<SetFavoriteMerchant> call = ToolApi.getApi().setFavoriteMerchant(BaseService.TOKEN, index, true);
call.enqueue(new Callback<SetFavoriteMerchant>() {
@Override
public void onResponse(Response<SetFavoriteMerchant> response, Retrofit retrofit) {
for (ItemsFavoriteMerchant item : list) {
if (item.getID() == index) {
list.remove(item);
favoriteMerchantAdapter.notifyDataSetChanged();
}
}
}
@Override
public void onFailure(Throwable t) {
alertDialogHelper.showAlertError("connection error...");
}
});
}public class FavoriteMerchantAdapter extends BaseAdapter implements View.OnClickListener {
List<ItemsFavoriteMerchant> itemsFavoriteMerchant;
FavoriteMerchant favoriteMerchant;
Context context;
AlertDialogHelper alertDialogHelper;
private IButtonCliclListener iButtonCliclListener;
public FavoriteMerchantAdapter(IButtonCliclListener iButtonCliclListener, AlertDialogHelper alertDialogHelper, FavoriteMerchant favoriteMerchant, List<ItemsFavoriteMerchant> itemsFavoriteMerchant, Context context) {
this.favoriteMerchant = favoriteMerchant;
this.context = context;
this.itemsFavoriteMerchant = itemsFavoriteMerchant;
this.alertDialogHelper = alertDialogHelper;
this.iButtonCliclListener = iButtonCliclListener;
}
@Override
public int getCount() {
return itemsFavoriteMerchant.size();
}
@Override
public Object getItem(int position) {
return itemsFavoriteMerchant.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
FavoriteMerchantAdapter.ViewHolder viewHolder;
String CDnPath = favoriteMerchant.getCDNPath();
ItemsFavoriteMerchant item = itemsFavoriteMerchant.get(position);
if (convertView == null) {
LayoutInflater layoutInflater = LayoutInflater.from(context);
viewHolder = new FavoriteMerchantAdapter.ViewHolder();
convertView = layoutInflater.inflate(R.layout.item_favorite_merchant, null);
viewHolder.FavoriteMerchantPlaceDesc = (TextViewGothamBook) convertView.findViewById(R.id.FavoriteMerchantPlaceDesc);
viewHolder.FavoriteMerchantLocationDesc = (TextViewGothamMedium) convertView.findViewById(R.id.FavoriteMerchantLocationDesc);
viewHolder.FavoriteMerchantCashDesc = (TextViewGothamMedium) convertView.findViewById(R.id.FavoriteMerchantCashDesc);
viewHolder.FavoriteMerchantDesc = (TextViewGothamMedium) convertView.findViewById(R.id.FavoriteMerchantDesc);
viewHolder.FavoriteMerchantLogo = (ImageView) convertView.findViewById(R.id.FavoriteMerchantLogo);
viewHolder.FavoriteMerchantDeleteButton = (ImageButton) convertView.findViewById(R.id.im_btn_deletemerchant);
viewHolder.FavoriteMerchantDeleteButton.setTag(item.getID());
viewHolder.FavoriteMerchantDeleteButton.setOnClickListener(this);
convertView.setTag(item.getID());
//convertView.setTag(viewHolder);
} else {
viewHolder = (FavoriteMerchantAdapter.ViewHolder) convertView.getTag();
}
/* String CDnPath = favoriteMerchant.getCDNPath();
ItemsFavoriteMerchant item = itemsFavoriteMerchants.get(position);*/
String ImageUrl = item.getCoverPageImageURL();
if (ImageUrl != null && !ImageUrl.isEmpty())
Picasso.with(context)
.load(CDnPath + ImageUrl)
.transform(new CircleTransform())
.into(viewHolder.FavoriteMerchantLogo);
String MerchantPlaceDesc = item.getName();
if (MerchantPlaceDesc != null && !MerchantPlaceDesc.isEmpty())
viewHolder.FavoriteMerchantPlaceDesc.setText(MerchantPlaceDesc);
String MerchantocationDesc = (String) item.getDistrict();
if (MerchantocationDesc != null && !MerchantocationDesc.isEmpty())
viewHolder.FavoriteMerchantLocationDesc.setText(MerchantocationDesc);
String MerchantCashDesc = "";
if (MerchantCashDesc != null && !MerchantCashDesc.isEmpty())
viewHolder.FavoriteMerchantCashDesc.setText(MerchantCashDesc);
return convertView;
}
@Override
public void onClick(View v) {
this.iButtonCliclListener.onClick(v);
}
public static class ViewHolder {
ImageView FavoriteMerchantLogo;
TextViewGothamBook FavoriteMerchantPlaceDesc;
TextViewGothamMedium FavoriteMerchantLocationDesc;
TextViewGothamMedium FavoriteMerchantCashDesc;
TextViewGothamMedium FavoriteMerchantDesc;
ImageButton FavoriteMerchantDeleteButton;
}
}
ありがとうございます...私はこれを行いましたが、削除ボタンをクリックすると、アプリが停止しました。エラー：java.util.ConcurrentModificationException。私に何ができる？ – Jenni
この行：else { viewHolder =（FavoriteMerchantAdapter.ViewHolder）convertView.getTag（）; } – Jenni
はい、私はこの行の 'if（item.getID（）== index）{' FavoriteMerchantActivityクラス – Jenni