Question

我使用ArrayAdapter创建了一个自定义ListView。 ListView的行有两个视图，一个是主视图＆amp;其他是隐藏的＆amp;单击主视图上的TextView时出现。

为了显示行数据，我创建了一个Object。我在ListView中遇到了一些问题。

这个问题有一段时间了。每当我从ListView中删除一个项目时，我都能看到该项目已从我的ArrayList＆amp;中删除。然后我调用notifyDataSetChanged。问题是这个ListView仍然显示已删除的行，但它不可点击（只有视图在那里）。只有可点击的其他行尚未删除。检查图片1.

Issue 1

我在对象中使用了一个标记来隐藏/显示隐藏的视图。但有时它看起来并不好。检查图片2
有时隐藏隐藏视图后，它仍显示在主视图下方。检查图片3

请帮帮我。

class ShippingAdapter extends ArrayAdapter<ShippingOption>
    {
        ShippingAdapter(Context context, ArrayList<ShippingOption> list)
        {
            super(context, R.layout.row_shipping, R.id.row_shipping_tv_product_name, list);
        }

        public View getView(final int position, View convertView, ViewGroup parent)
        {
            View row = super.getView(position, convertView, parent);
            ShippingViewHolder holder = (ShippingViewHolder) row.getTag();
            if (holder == null)
            {
                holder = new ShippingViewHolder(row);
                row.setTag(holder);
            }

            final ShippingOption shippingOption = getShippingOption(position);

            holder.tvRemove.setOnClickListener(new OnClickListener()
            {
                @Override
                public void onClick(View v)
                {
                    showRemoveDialog(shippingOption.getProductId(), position);
                }
            });
            holder.tvProductName.setText(shippingOption.getProductName());
            imageLoader.DisplayImage(shippingOption.getProductImageUrl(), holder.ivProduct);

            ArrayAdapter<String> adapterShippingOption = createAdapter(holder.spinnerShippingOption, shippingOption.getListShipping(), R.layout.spinner_textview_blue);
            holder.spinnerShippingOption.setSelection(adapterShippingOption.getPosition(shippingOption.getSelectedOption()));
            if (shippingOption.getSelectedOption().equals(Constants.PICK_UP_AT_STORE))
            {
                HashMap<String, Integer> mapPickupAddress = shippingOption.getMapPickupAddress();
                Collection<String> collection = mapPickupAddress.keySet();
                ArrayList<String> listAddress = new ArrayList<String>();
                listAddress.addAll(collection);

                ArrayAdapter<String> adapterAddress = createAdapter(holder.spinnerAddress, listAddress, R.layout.spinner_textview_blue_small);
                holder.spinnerAddress.setSelection(adapterAddress.getPosition(shippingOption.getSelectedAddress()));
                holder.relativeAddress.setVisibility(View.VISIBLE);
                holder.spinnerAddress.setOnItemSelectedListener(new OnItemSelectedListener()
                {
                    @Override
                    public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
                    {
                        String selectedAddress = parent.getItemAtPosition(position).toString();

                        String oldAddress = shippingOption.getSelectedAddress();
                        shippingOption.setSelectedAddress(selectedAddress);
                        if (oldAddress == null || !oldAddress.equals(selectedAddress))
                            notifyDataSetChanged();
                    }

                    @Override
                    public void onNothingSelected(AdapterView<?> arg0)
                    {
                    }
                });
            } else
            {
                holder.relativeAddress.setVisibility(View.GONE);
            }

            holder.spinnerShippingOption.setOnItemSelectedListener(new OnItemSelectedListener()
            {
                @Override
                public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
                {
                    String selectedOption = parent.getItemAtPosition(position).toString();
                    // if (!selectedOption.equals(Constants.FREE_SHIPPING))
                    // {
                    String oldOption = shippingOption.getSelectedOption();
                    shippingOption.setSelectedOption(selectedOption);
                    if (!oldOption.equals(selectedOption))
                        notifyDataSetChanged();
                    // }
                }

                @Override
                public void onNothingSelected(AdapterView<?> parent)
                {
                }
            });
            holder.relativeLayoutGift.setVisibility(shippingOption.isGiftDetailsVisible() ? View.VISIBLE : View.GONE);
            if (shippingOption.isGiftWrapAvailable())
            {
                imageLoader.DisplayImage(shippingOption.getGiftImageUrl(), holder.ivGift);
                holder.layoutGift.setVisibility(View.VISIBLE);
                ArrayList<String> listGift = new ArrayList<String>();
                listGift.add("Not a Gift");
                listGift.add("Yes it's a Gift $" + shippingOption.getGiftServiceCharge());
                ArrayAdapter<String> adapterGift = createAdapter(holder.spinnerGift, listGift, R.layout.spinner_textview_blue);

                holder.tvGiftDetails.setVisibility(shippingOption.getSelectedGiftOption().equals("Not a Gift") ? View.GONE : View.VISIBLE);
                holder.spinnerGift.setSelection(adapterGift.getPosition(shippingOption.getSelectedGiftOption()));
                holder.spinnerGift.setOnItemSelectedListener(new OnItemSelectedListener()
                {
                    @Override
                    public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
                    {
                        String selectedOption = parent.getItemAtPosition(position).toString();
                        String oldOption = shippingOption.getSelectedGiftOption();
                        shippingOption.setSelectedGiftOption(selectedOption);

                        if (!oldOption.equals(selectedOption))
                            notifyDataSetChanged();
                    }

                    @Override
                    public void onNothingSelected(AdapterView<?> parent)
                    {
                    }
                });

                holder.tvGiftDetails.setOnClickListener(new OnClickListener()
                {
                    @Override
                    public void onClick(View v)
                    {
                        shippingOption.setGiftDetailsVisible(true);
                        notifyDataSetChanged();
                    }
                });

                holder.relativeGiftDetails.setVisibility(shippingOption.isGiftDetailsVisible() ? View.VISIBLE : View.GONE);
                holder.relativeLayoutGift.setOnClickListener(new OnClickListener()
                {
                    @Override
                    public void onClick(View v)
                    {
                    }
                });

                holder.btnCancel.setOnClickListener(new OnClickListener()
                {
                    @Override
                    public void onClick(View v)
                    {
                        shippingOption.setGiftDetailsVisible(false);
                        notifyDataSetChanged();
                    }
                });

                holder.btnClose.setOnClickListener(new OnClickListener()
                {
                    @Override
                    public void onClick(View v)
                    {
                        shippingOption.setGiftDetailsVisible(false);
                        notifyDataSetChanged();
                    }
                });

                final EditText editLocal = holder.editGiftMessage;

                holder.btnApply.setOnClickListener(new OnClickListener()
                {
                    @Override
                    public void onClick(View v)
                    {
                        String message = editLocal.getText().toString();
                        shippingOption.setGiftMessageApplied(true);
                        shippingOption.setGiftMessage(message);
                        shippingOption.setGiftDetailsVisible(false);
                        notifyDataSetChanged();
                    }
                });

                holder.editGiftMessage.setText(shippingOption.getGiftMessage());

                holder.editGiftMessage.addTextChangedListener(new TextWatcher()
                {
                    @Override
                    public void onTextChanged(CharSequence s, int start, int before, int count)
                    {
                    }

                    @Override
                    public void beforeTextChanged(CharSequence s, int start, int count, int after)
                    {
                    }

                    @Override
                    public void afterTextChanged(Editable s)
                    {
                    }
                });

            } else
            {
                holder.layoutGift.setVisibility(View.GONE);
                holder.relativeGiftDetails.setVisibility(View.GONE);
            }

            return row;
        }
    }

Answer 1

在这里，我将展示一个视图标记。

        ShippingViewHolder holder;
        if (holder == null)
        {
            holder = new ShippingViewHolder(row);
            row.setTag(holder);
        }
        holder = (ShippingViewHolder) row.getTag();
        ShippingOption shippingOption = getShippingOption(position);
        holder.tvRemove.setTag(shippingOption);
        holder.tvRemove.setOnClickListener(new OnClickListener()
        {
            @Override
            public void onClick(View v)
            {

                ShippingOption shippingOption1 =(ShippingOption) v.getTag();

                int pos = getPosition(shippingOption1); // this is the function that will return you the postion of your object from your passed list of object; write it your self.
                showRemoveDialog(shippingOption1.getProductId(), pos);
            }
        });

ListView不更新行视图

1 个答案: