Question

在列表视图中，我在按钮点击时动态添加和删除列表的行（项目），在单个列表行（项目）中有两个edittexts，我已经尽力在自定义列表视图中获取editext的值pojo类，但不能这样做，甚至没有明智地获得所有edittext的值。

请提前帮助我，谢谢！

  public static void GetImages()
    {
        var doc = PresentationDocument.Open(@"D:\Peak Sourcing\Work\ppt_test\xx.pptx", true);

        var presentationPart = doc.PresentationPart;

        var slidePart = presentationPart.GetPartsOfType<SlidePart>().First();

        var imagePart = slidePart.GetPartsOfType<ImagePart>().First();

        var stream = imagePart.GetStream();

        var img = Image.FromStream(stream);

        img.Save(@"D:\Peak Sourcing\Work\ppt_test\test-output.png");

    }

我已经尝试了这两种方法，但没有得到任何解决方案。

for（int i = 0; i

private class NewCoachExerienceEditAdapter extends BaseAdapter {

        @Override
        public int getCount() {
            if (newCoachProExpArrList != null) {
                return newCoachProExpArrList.size();
            } else {
                return 0;
            }
        }

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

        @Override
        public long getItemId(int position) {
            return position;
        }

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

            final ViewHolder holder;
            if (convertView == null) {
                holder = new ViewHolder();
                LayoutInflater inflater = UserEditProfileCoachActivity.this.getLayoutInflater();
                convertView = inflater.inflate(R.layout.new_edit_pro_exp_row, null);

                holder.et_coach_edit_pro_exp_academy_name = (EditText) convertView.findViewById(R.id.et_coach_edit_pro_exp_academy_name);
                holder.et_edit_coach_pro_exp_comments = (EditText) convertView.findViewById(R.id.et_edit_coach_pro_exp_comments);
                holder.iv_edit_coach_pro_exp_add = (ImageView) convertView.findViewById(R.id.iv_edit_coach_pro_exp_add);
                holder.iv_edit_coach_pro_exp_remove = (ImageView) convertView.findViewById(R.id.iv_edit_coach_pro_exp_remove);
                holder.ll_coach_edit_pro_exp_from = (LinearLayout) convertView.findViewById(R.id.ll_coach_edit_pro_exp_from);
                holder.ll_coach_edit_pro_exp_to = (LinearLayout) convertView.findViewById(R.id.ll_coach_edit_pro_exp_to);

                convertView.setTag(holder);

            } else {

                holder = (ViewHolder) convertView.getTag();
            }

            newCoachProExperienceItem = newCoachProExpArrList.get(position);
            holder.ref = position;

            tv_edit_coach_edit_pro_exp_from = (TextView) convertView.findViewById(R.id.tv_edit_coach_edit_pro_exp_from);
            tv_edit_coach_edit_pro_exp_to = (TextView) convertView.findViewById(R.id.tv_edit_coach_edit_pro_exp_to);

            holder.et_coach_edit_pro_exp_academy_name.setText(newCoachProExperienceItem.getCoach_exp_academy_str());
            holder.et_edit_coach_pro_exp_comments.setText(newCoachProExperienceItem.getCoach_exp_coach_comment_str());

            holder.iv_edit_coach_pro_exp_add.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    newCoachProExperienceItem = new NewCoachProExperienceItem();
                    newCoachProExpArrList.add(newCoachProExperienceItem);
                    notifyDataSetChanged();
                }
            });

            holder.iv_edit_coach_pro_exp_remove.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    newCoachProExpArrList.remove(position);
                    notifyDataSetChanged();
                }
            });

            holder.et_coach_edit_pro_exp_academy_name.addTextChangedListener(new TextWatcher() {
                @Override
                public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
                }

                @Override
                public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
                }

                @Override
                public void afterTextChanged(Editable arg0) {

                    newCoachProExpArrList.get(position).setCoach_exp_academy_str(arg0.toString());

                    Log.e(position + " : ",  arg0.toString());
                }
            });
            return convertView;
        }
        }


        private class ViewHolder {
            EditText et_edit_coach_pro_exp_comments, et_coach_edit_pro_exp_academy_name;
            ImageView iv_edit_coach_pro_exp_add, iv_edit_coach_pro_exp_remove;
            LinearLayout ll_coach_edit_pro_exp_from, ll_coach_edit_pro_exp_to;
            int ref;
        }

Answer 1

我认为ViewHolder中存在问题。如果要添加或删除项目，可以生成所需的所有可见视图的项目布局，而不是在视图持有者中注册所有视图，例如，如果必须删除按钮上的某些视图，请执行viewHolder.someView.setVisibility（View.GONE）;或者显示viewHolder.someView.setVisibility（View.VISIBLE）;但我不认为这是最好的解决方案。

Answer 2

我有两个选择，不一定是我需要的东西，反正两个方面如下：首先打开一个弹出窗口然后添加新行并通知适配器，第二个是动态增加listview的大小。

Edittext在listview中动态添加/删除

2 个答案: