通过单击imageButtom，我无法使用自定义适配器删除ListView中的正确项目

Question

当我点击listView中的imageButtom时，它总是删除第一个项目。我需要删除已单击其imageButtom的项目。

PedidoLista.class

public class PedidoLista extends BaseAdapter {
private LayoutInflater mInflater;
private List<Movimiento> productos;

public PedidoLista(Context context, List<Movimiento> productos) {
    this.productos = productos;
    mInflater = LayoutInflater.from(context);
}

@Override
public int getCount() {
    return productos.size();
}

@Override
public Object getItem(int position) {
    return productos.get(position);
}

@Override
public long getItemId(int position) {
    return (long) Integer.parseInt(productos.get(position).getIdref());
}

@Override
public View getView(final int position, View convertView, 
    final ViewGroup parent) {
    ViewHolder holder;
    View view;
    if (convertView == null) {
        holder = new ViewHolder();
        view = mInflater.inflate(R.layout.pedido_lista, null);
        holder.txt1 = (TextView) view.findViewById(R.id.lista1);
        holder.txt2 = (TextView) view.findViewById(R.id.lista2);
        holder.txt3 = (TextView) view.findViewById(R.id.lista3);
        holder.ib4 = (ImageButton) view.findViewById(R.id.lista4);
        holder.ib4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                productos.remove(position);
                notifyDataSetChanged();
            }
        });
        view.setTag(holder);
    } else {
        view = convertView;
        holder = (ViewHolder) view.getTag();
    }
    Movimiento papa = this.productos.get(position);
    holder.txt1.setText(papa.getNombrepale());
    holder.txt2.setText(papa.getDescripLarga());
    holder.txt3.setText(papa.getCant());
    return view;
}
public static class ViewHolder {
    TextView txt1;
    TextView txt2;
    TextView txt3;
    ImageButton ib4;
}
}

pedido_lista.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/asd"
android:layout_width="match_parent"
android:layout_height="60dp"
android:gravity="center_vertical"
android:orientation="horizontal">

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/lista1"
        android:layout_width="40dp"
        android:layout_height="wrap_content"
        android:lines="1"
        android:maxLength="4"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>

<LinearLayout
    android:layout_width="300dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="20dp"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/lista2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:lines="1"
        android:maxLength="35"
        android:text="123456789123456789123456789123456789"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>

<LinearLayout
    android:layout_width="90dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="20dp"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/lista3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:maxLength="8"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="2dp"
    android:gravity="center"
    android:orientation="horizontal">

    <ImageButton
        android:id="@+id/lista4"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:background="@drawable/kkkrojo"
        android:src="@android:drawable/ic_menu_delete" />
</LinearLayout>

我需要帮助！

Answer 1

尝试类似下面的代码。但我想你应该使用RecyclerView。它已经实施了。

public class PedidoLista extends BaseAdapter {
    private LayoutInflater mInflater;
    private List<Movimiento> productos;

    public PedidoLista(Context context, List<Movimiento> productos) {
        this.productos = productos;
        mInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        return productos.size();
    }

    @Override
    public Object getItem(int position) {
        return productos.get(position);
    }

    @Override
    public long getItemId(int position) {
        return (long) Integer.parseInt(productos.get(position).getIdref());
    }

    @Override
    public View getView(final int position, View convertView, 
        final ViewGroup parent) {
        //you have to make your view holder as final
        final ViewHolder holder;
        View view;
        if (convertView == null) {
            holder = new ViewHolder();
            view = mInflater.inflate(R.layout.pedido_lista, null);
            holder.txt1 = (TextView) view.findViewById(R.id.lista1);
            holder.txt2 = (TextView) view.findViewById(R.id.lista2);
            holder.txt3 = (TextView) view.findViewById(R.id.lista3);
            holder.ib4 = (ImageButton) view.findViewById(R.id.lista4);
            holder.ib4.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                   //here you get current position from view holder
                    productos.remove(holder.position);
                    notifyDataSetChanged();
                }
            });
            view.setTag(holder);
        } else {
            view = convertView;
            holder = (ViewHolder) view.getTag();
        }
        Movimiento papa = this.productos.get(position);
        //here you set current position
        holder.position = position;
        holder.txt1.setText(papa.getNombrepale());
        holder.txt2.setText(papa.getDescripLarga());
        holder.txt3.setText(papa.getCant());
        return view;
    }
    public static class ViewHolder {
        TextView txt1;
        TextView txt2;
        TextView txt3;
        ImageButton ib4;
        int position;
    }
}

Answer 2

以下代码应设置在if-else：

之外

    holder.txt1 = (TextView) view.findViewById(R.id.lista1);
    holder.txt2 = (TextView) view.findViewById(R.id.lista2);
    holder.txt3 = (TextView) view.findViewById(R.id.lista3);
    holder.ib4 = (ImageButton) view.findViewById(R.id.lista4);
    holder.ib4.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            productos.remove(position);
            notifyDataSetChanged();
        }
    });