Java 如何在Android系统上不重复ListView的元素

我有一个大问题，不管你有没有。当有超过15个数据时，我的移动应用程序的ListView会重复元素。我正在使用Firebase的云存储来存储数据

我的适配器的代码是：

@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {

    View view = convertView;

    if(view ==  null){
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);

        view = inflater.inflate(R.layout.lista_receitas, parent, false);

        if(receitasAdap.size() > 0){
            Receitas receita = receitasAdap.get(position);

            final ImageView imagemReceita = (ImageView) view.findViewById(R.id.imagemReceitaId);
            TextView tituloReceita = (TextView) view.findViewById(R.id.tituloReceitaId);

            FirebaseStorage firebaseStorage = FirebaseStorage.getInstance();
            StorageReference storageReference = firebaseStorage.getReferenceFromUrl("gs://receitas-pantaneiras.appspot.com/").child(receita.getUrl());


            storageReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                @Override
                public void onSuccess(Uri uri) {
                Picasso.with(getContext()).load(uri.toString()).resize(widht, height).centerCrop().into(imagemReceita);
                }
            });
            tituloReceita.setText(receita.getNome());
            tituloReceita.setVisibility(View.VISIBLE);
        }
    }

    return view;
}

请尝试以下代码：

@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {

    View view = convertView;

    if(view ==  null){
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);

        view = inflater.inflate(R.layout.lista_receitas, parent, false);
    }
    Receitas receita = receitasAdap.get(position);

    final ImageView imagemReceita = (ImageView) view.findViewById(R.id.imagemReceitaId);
    TextView tituloReceita = (TextView) view.findViewById(R.id.tituloReceitaId);

    FirebaseStorage firebaseStorage = FirebaseStorage.getInstance();
    StorageReference storageReference = firebaseStorage.getReferenceFromUrl("gs://receitas-pantaneiras.appspot.com/").child(receita.getUrl());


    storageReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
        @Override
        public void onSuccess(Uri uri) {
            Picasso.with(getContext()).load(uri.toString()).resize(widht, height).centerCrop().into(imagemReceita);
        }
    });
    tituloReceita.setText(receita.getNome());
    tituloReceita.setVisibility(View.VISIBLE);

    return view;
}

---

希望有帮助

你能解释一下OBS是什么意思吗？在我的语言中，它是观察的缩写。我很抱歉：你能解决这个问题吗？你能附上一个问题的截图吗？因为我是一个新用户，我不能附上图像，但我为图像添加了一个链接。这个代码工作不正常，图像总是一个接一个地出现，还有其他想法吗？