adapter中包含checkbox，当选中数据后怎么得到选中的数据？

package com.app.FragmentAdapter;

import android.content.Context;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.TextView;

import com.addresslist.R;
import com.app.bean.ContactsBean;

;import java.util.ArrayList;
import java.util.List;

/**

• Created by dell-1 on 2018/1/9. */

public class AddContactFromAddressAdapter extends BaseAdapter {
private List contacts;
private ArrayList contactsList=new ArrayList<>();

private ArrayList selectedList;
;
private LayoutInflater inflater;



public AddContactFromAddressAdapter(Context context, List<ContactsBean> contacts) {
    this.contacts = contacts;
    inflater = LayoutInflater.from(context);
    selectedList=new ArrayList();


}

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

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

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

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    ViewHolder holder = null;

    if (convertView == null) {
        convertView = inflater.inflate(R.layout.contacts_cell, null);
        holder = new ViewHolder();
        holder.sort_key = convertView.findViewById(R.id.tv_sort_key);
        holder.mPhones = convertView.findViewById(R.id.tv_phones);
        holder.checkBoxSelected = convertView.findViewById(R.id.cb_selected);
        convertView.setTag(holder);

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

    holder.sort_key.setText(contacts.get(position).getFirstLetterOfName());
    holder.mPhones.setText(contacts.get(position).getContactsName() + ":"
            + contacts.get(position).getPhoneNumber());
    if (contacts.get(position).getSelectedContact()) {
        holder.checkBoxSelected.setChecked(true);
    } else {
        holder.checkBoxSelected.setChecked(false);
    }
    holder.checkBoxSelected.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (contacts.get(position).getSelectedContact()) {
                contacts.get(position).setSelectedContact(false);
                selectedList.remove(contacts.get(position));

            } else {
                contacts.get(position).setSelectedContact(true);
                selectedList.add(contacts.get(position));


            }

        }
    });

    return convertView;
}

private final class ViewHolder {
    public TextView sort_key;
    public TextView mPhones;
    public CheckBox checkBoxSelected;
}

}

holder.checkBoxSelected.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (contacts.get(position).getSelectedContact()) {
contacts.get(position).setSelectedContact(false);
selectedList.remove(contacts.get(position));

        } else {
            contacts.get(position).setSelectedContact(true);
            selectedList.add(contacts.get(position));


        }

    }

solution: 将点击事件中的view 强转成checkbox再获取显示的文本

想要获取所有的已经选中的数据，在adapter 里面提供一个方法返回 selectedList 供外面调用就行了

我看你的代码 感觉没问题 估计是你在别的地方操作了数据导致清空了选择
你可以试试下面方法
list getSelectContact(){
list select = new arraylist();
for(int i=0,size=contacts.size();size>i;i++){
if(contacts.get(i).getSelectedContact()){
select.add(contacts.get(i));
}
}
return select
}