EditViewRecycler

Recycler item 有editview 解决复用 包含动态添加和删除 自带动画

关键在ExRecyclerAdapter中

  @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.num.setText(position+1 + "");
        if (position == 0) {
            holder.tvDelete.setVisibility(View.GONE);
        } else {
            holder.tvDelete.setVisibility(View.VISIBLE);
        }
        //判断是否有TextWatcher监听事件，有的话先移除
        if (holder.place.getTag(R.id.place_value) instanceof TextWatcher) {
            holder.place.removeTextChangedListener(((TextWatcher) holder.place.getTag(R.id.place_value)));
        }
        //移除了TextWatcher事件后设置item对应的文本
        holder.place.setText(datas.get(position).getPlace());


        if (datas.get(position).isFocus()) {
            if (!holder.place.isFocused()) {
                holder.place.requestFocus();
            }
            CharSequence text = datas.get(position).getPlace();
            holder.place.setSelection(TextUtils.isEmpty(text) ? 0 : text.length());
        } else {
            if (holder.place.isFocused()) {
                holder.place.clearFocus();
            }
        }
        //edit 事件处理
        holder.place.setOnTouchListener((v, event) -> {
            if (event.getAction() == MotionEvent.ACTION_UP) {
                final boolean focus = datas.get(position).isFocus();
                check(position);
                if (!focus && !holder.place.isFocused()) {
                    holder.place.requestFocus();
                    holder.place.onWindowFocusChanged(true);
                }
            }
            return false;
        });

        TextWatcher textWatcher = new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {
                if (TextUtils.isEmpty(s)) {
                    datas.get(position).setPlace(null);
                } else {
                    datas.get(position).setPlace(s.toString());
                }
            }
        };
        //设置tag为TextWatcher
        holder.place.addTextChangedListener(textWatcher);
        holder.place.setTag(R.id.place_value, textWatcher);

        //删除该条数据
        holder.tvDelete.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (position != 0) {
                    datas.remove(position);
                    notifyItemRemoved(position);
                    if (position != datas.size()) {
                        notifyItemRangeChanged(position, getItemCount());
                    }
//                    datas.remove(position);
//                    notifyDataSetChanged();
                }
            }
        });
    }

    //  添加数据
    public void addData(ItemBean itemBean) {
        itemBean.setFocus(true);
//      在list中添加数据，并通知条目加入一条
        datas.add(datas.size(), itemBean);
        //添加动画
        notifyItemInserted(datas.size());
    }

    //设置状态
    private void check(int position) {
        for (ItemBean l : datas) {
            l.setFocus(false);
        }
        datas.get(position).setFocus(true);
    }

    @Override
    public int getItemCount() {
        return datas.size();
    }