1.init方法中的实现

定义2个HashMap用于存储已选择的及是否可见的标志

private void init() {        isSelected = new HashMap
    
     ();        isVisible = new HashMap
     
      ();        if (mData != null && mData.size() > 0) {            for (int i = 0; i < mData.size(); i++) {                isSelected.put(i, false);                isVisible.put(i, false);            }        }    }复制代码
     
    

2.getView方法中的实现

@Override    public View getView(int i, View view, ViewGroup viewGroup) {        ViewHolder holder;        if (view==null){            view= LayoutInflater.from(mContext).inflate(R.layout.item_fund,viewGroup,false);            holder=new ViewHolder();            view.setTag(holder);            holder.tv_name=view.findViewById(R.id.tv_name);            holder.tv_code=view.findViewById(R.id.tv_code);            holder.checkBox=view.findViewById(R.id.checkBox);        }else {            holder=(ViewHolder) view.getTag();        }        if (mData!=null){            holder.tv_name.setText(mData.get(i).getName());            holder.tv_code.setText(mData.get(i).getCode());            holder.checkBox.setTag(i);            if (type.equals("delete")){                if (isSelected.get(i)){                    isSelected.put(i,false);                }            }else {            }            holder.checkBox.setChecked(isSelected.get(i));            if (isVisible.get(i)) {                holder.checkBox.setVisibility(View.VISIBLE);            } else {                holder.checkBox.setVisibility(View.GONE);            }        }        return view;    }复制代码

3.Activity中的实现

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView
     adapterView, View view, int position, long l) {                if (isEdit) {                    mAdapter.type = "select";                    FundListAdpater.ViewHolder holder = (FundListAdpater.ViewHolder) view.getTag();                    holder.checkBox.toggle();                    mAdapter.isSelected.put(position, holder.checkBox.isChecked());                }            }        });        @Override    public void onClick(View view) {        isHasSelect = false;        for (int i = 0; i < datas.size(); i++) {            if (mAdapter.isSelected.get(i)) {                isHasSelect = true;                break;            }        }        switch (view.getId()) {            case R.id.tv_edit:                if (datas != null && datas.size() > 0) {                    if (isEdit) {                        tv_edit.setText("编辑");                        ll_bottom.setVisibility(View.GONE);                        for (int i = 0; i < datas.size(); i++) {                            mAdapter.isVisible.put(i, false);                        }                        mAdapter.notifyDataSetChanged();                        isEdit = false;                    } else {                        tv_edit.setText("完成");                        ll_bottom.setVisibility(View.VISIBLE);                        for (int i = 0; i < datas.size(); i++) {                            mAdapter.isVisible.put(i, true);                        }                        mAdapter.notifyDataSetChanged();                        isEdit = true;                    }                }                break;            case R.id.tv_cancel:                mAdapter.type = "select";                tv_cancel.setSelected(true);                tv_delete.setSelected(false);                if (isAllSelect) {                    for (int i = 0; i < datas.size(); i++) {                        mAdapter.isSelected.put(i, false);                    }                } else {                    for (int i = 0; i < datas.size(); i++) {                        mAdapter.isSelected.put(i, true);                    }                }                mAdapter.notifyDataSetChanged();                isAllSelect = !isAllSelect;                break;            case R.id.tv_delete:                mAdapter.type = "delete";                if (isHasSelect) {                    tv_cancel.setSelected(false);                    tv_delete.setSelected(true);                    if (deleteOrderNoList != null) {                        deleteOrderNoList.clear();                    }                    for (int i = 0; i < datas.size(); i++) {                        if (mAdapter.isSelected.get(i)) {                            //FundListAdpater.ViewHolder holder = (FundListAdpater.ViewHolder) lv.getChildAt(i-lv.getFirstVisiblePosition()).getTag();                            deleteOrderNoList.add(datas.get(i).getCode());//选择删除的订单号holder.tv_code.getText().toString()                            FundBean deleteOrder = (FundBean) lv.getItemAtPosition(i);                            deleteDatas.add(deleteOrder);                        }                    }                    deleteFund(deleteOrderNoList);                }                break;        }    }    private void deleteFund(List
    
      deleteOrderNoList) {        if (datas != null) {            datas.removeAll(deleteDatas);            mAdapter.notifyDataSetChanged();            mAdapter.notifyDataSetInvalidated();        }        Toast.makeText(this, deleteOrderNoList.toString(), Toast.LENGTH_LONG).show();        if (datas.size() == 0) {            tv_edit.setText("编辑");            ll_bottom.setVisibility(View.GONE);            for (int i = 0; i < datas.size(); i++) {                mAdapter.isVisible.put(i, false);            }            mAdapter.notifyDataSetChanged();            isEdit = false;        }    }复制代码
    

4.效果图