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ListView加checkBox可以实现全选等功能

2024-08-25 05:30:05   224人阅读

1.效果图

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2.LIteView_item布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginRight="10dip"
    android:layout_weight="1.0"
    android:layout_marginLeft="10dp"

    android:orientation="horizontal"
    android:descendantFocusability="blocksDescendants"
    android:background="#AAAAAA"
    >

    <CheckBox android:id="@+id/isCheakBox" android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:layout_alignParentRight="true" />
   
    <ImageView android:id="@+id/dailyPic"
        android:contentDescription="dailyPic"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="3.0dip"
        android:src="@mipmap/txt"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"/>
  
    <TextView
        android:id="@+id/dailyName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/dailyPic"
        android:text=""
        android:layout_centerVertical="true"
        android:textColor="#000000"
        android:textSize="12.0sp" />

</RelativeLayout>

 



 


 




3.主布局： 只要有checkbox,listView 也行




<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:background="@color/bai"
    tools:context="myapplication.com.myblue.activity.Rizhi_Activity">
    <LinearLayout
        android:layout_height="45dp"
        android:layout_width="match_parent"
        android:background="@color/rizhi"
        android:id="@+id/layout1"
        android:visibility="gone"
        android:gravity="center_horizontal|center_vertical"
        android:orientation="horizontal">
        <TextView
            android:id="@+id/textView_quxiao"
            android:layout_height="match_parent"
            android:layout_width="wrap_content"
            android:text="取消"
            android:layout_marginLeft="10dp"
            android:background="@color/rizhi"
            android:gravity="center_horizontal|center_vertical"
            android:textColor="@color/bai"/>
        <TextView
            android:id="@+id/textView_quanxuan"
            android:layout_height="match_parent"
            android:layout_width="0dp"
            android:gravity="center_horizontal|center_vertical"
            android:layout_weight="1"
            android:text="已选择1项"
            android:textColor="@color/bai"/>
        <CheckBox android:id="@+id/all_check_btn"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentLeft="true"/>
    </LinearLayout>
    <LinearLayout
        android:id="@+id/layout2"
        android:layout_height="@dimen/titlebar"
        android:layout_width="match_parent"
        android:background="@color/theme"
        android:orientation="horizontal">
        <ImageView
            android:id="@+id/imageView1"
            android:layout_height="match_parent"
            android:layout_width="@dimen/zhuyemian"
            android:layout_gravity="center_vertical"
            android:src="@mipmap/search_back"/>
        <TextView
            android:id="@+id/textView1"
            android:layout_height="@dimen/titlebar"
            android:layout_width="0dp"
            android:text="@string/rizhi_textview1"
            android:gravity="center_horizontal|center_vertical"
            android:textSize="@dimen/title_size"
            android:layout_weight="1"/>
        <ImageView
            android:layout_height="match_parent"
            android:layout_width="@dimen/zhuyemian"
            android:src="@mipmap/search"/>
    </LinearLayout>

        <ListView
            android:layout_marginTop="3dp"
            android:id="@+id/listView"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:layout_width="match_parent"/>

    <LinearLayout
        android:layout_height="45dp"
        android:layout_width="match_parent"
        android:id="@+id/layout3"
        android:visibility="gone"
        android:background="@color/rizhi"
        android:gravity="center_horizontal|center_vertical"
        android:orientation="horizontal">

        <TextView
            android:layout_height="match_parent"
            android:layout_width="0dp"
            android:gravity="center_horizontal|center_vertical"
            android:layout_weight="1"
            android:text="删除"
            android:textColor="@color/bai"/>
        <TextView
            android:id="@+id/textView_loadup"
            android:layout_height="match_parent"
            android:layout_width="0dp"
            android:gravity="center_horizontal|center_vertical"
            android:layout_weight="1"
            android:text="上传"
            android:textColor="@color/bai"/>

    </LinearLayout>
</LinearLayout>




4.adapter




 class DraftDailyAdapter extends BaseAdapter {

        public List<Item> list;
        private Context context;
        LayoutInflater inflater;

        public DraftDailyAdapter(Context context, List<Item> list) {
            super();
            this.list = list;
            this.context = context;
            inflater = LayoutInflater.from(this.context);
        }
        @Override
        public int getCount() {
            return list == null ? 0 : list.size();
        }
        @Override
        public Object getItem(int location) {
            return list.get(location);
        }
        @Override
        public long getItemId(int position) {
            return position;
        }
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder = null;
            Item item = list.get(position);
            //Item的位置
            final int listPosition = position;
            //这个记录item的id用于操作isCheckedMap来更新CheckBox的状态
            final int id = item.id;
            if(convertView == null){
                holder = new ViewHolder();
                convertView = inflater.inflate(R.layout.layout_listviewitem, null);
                holder.tvName = (TextView)convertView.findViewById(R.id.dailyName);
                holder.dailyPic= (ImageView) convertView.findViewById(R.id.dailyPic);
                //  holder.deleteButton = (ImageButton)convertView.findViewById(R.id.deleteAttachment);
                holder.cBox = (CheckBox)convertView.findViewById(R.id.isCheakBox);
                convertView.setTag(holder);
            }else{
                holder = (ViewHolder) convertView.getTag();
            }
            // Log.d(TAG, "id="+id);
            holder.cBox.setChecked(isCheckedMap.get(id));
            holder.tvName.setText(item.name);
            if(item.name.contains("txt")){
                holder.dailyPic.setImageResource(R.mipmap.txt);
            }else{
                holder.dailyPic.setImageResource(R.mipmap.photo);
            }
//            holder.deleteButton.setOnClickListener(new View.OnClickListener() {
//                @Override
//                public void onClick(View paramView) {
//                    //Log.d(TAG, "deletePosition="+listPosition+"");
//                    //删除list中的数据
//                    list.remove(listPosition);
//                    //删除Map中对应选中状态数据
//                    isCheckedMap.remove(id);
//                    //通知列表数据修改
//                    adapter.notifyDataSetChanged();
//                }
//            });
            holder.cBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                  layout1.setVisibility(View.VISIBLE);
                  layout2.setVisibility(View.GONE);
                  layout3.setVisibility(View.VISIBLE);
                    if(isChecked){
                        isCheckedMap.put(id,true);
                    }else{
                        isCheckedMap.put(id,false);
                    }
                }
            });
            return convertView;
        }
        public final class ViewHolder {
            public TextView tvName;
            public ImageButton deleteButton;
            public CheckBox cBox;
            ImageView dailyPic;
        }
    }




5.item数据类




class Item {
        private Integer id;
        private String name;
        String address;
    }




6.实现


 




package myapplication.com.myblue.activity;

import android.content.Context;
import android.graphics.Color;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.SearchView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import myapplication.com.myblue.R;
import myapplication.com.myblue.adapter.ListViewAdapter;
import myapplication.com.myblue.entity.WenjianBean;
import myapplication.com.myblue.utils.SDcardHelper;

public class Rizhi_Activity extends AppCompatActivity  implements SearchView.OnQueryTextListener{
    SearchView rizhi_searchview;
    ImageView imageView1;
    LinearLayout layout1,layout2,layout3;
    TextView textView_quanxuan,textView_quxiao,textView_loadup;

    /*
    *
    * ***/
    private List<Item> itemList;
    private DraftDailyAdapter adapter;
    private Map<Integer, Boolean> isCheckedMap;
    private CheckBox allCheckBox;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_rizhi);
        initView();
    }
    public void  initView(){

       // 这里的data数据是读取的文件夹path和name，根据自己需要修改Item数据
        File file1=new File(Environment.getExternalStorageDirectory()+File.separator+"AA");
        File[] files = file1.listFiles();
        List<WenjianBean>data=http://www.mamicode.com/SDcardHelper.getFileName(files);
        allCheckBox = (CheckBox)findViewById(R.id.all_check_btn);
        itemList = new ArrayList<Item>();
        ListView list= (ListView) findViewById(R.id.listView);
        isCheckedMap = new HashMap<Integer, Boolean>();
        //初始化数据
        for(int i=0;i<data.size();i++){
            Item item = new Item();
            item.id=i;
            item.name = data.get(i).getName();
            item.address=data.get(i).getAddress();
            itemList.add(item);
            isCheckedMap.put(i,false);
        }
        adapter = new DraftDailyAdapter(this,itemList);
        list.setAdapter(adapter);
        textView_loadup= (TextView) findViewById(R.id.textView_loadup);
        layout1= (LinearLayout) findViewById(R.id.layout1);
        layout2= (LinearLayout) findViewById(R.id.layout2);
        layout3= (LinearLayout) findViewById(R.id.layout3);
        textView_quanxuan= (TextView) findViewById(R.id.textView_quanxuan);
        textView_quxiao= (TextView) findViewById(R.id.textView_quxiao);

      //  final ListViewAdapter adapter=new ListViewAdapter(getApplicationContext(),data,layout1,layout2,layout3);
       // listView= (ListView) findViewById(R.id.listView);
      //  listView.setAdapter(adapter);
        imageView1= (ImageView) findViewById(R.id.imageView1);
        imageView1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        textView_quxiao.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                layout1.setVisibility(View.GONE);
                layout2.setVisibility(View.VISIBLE);
                layout3.setVisibility(View.GONE);
            }
        });

        textView_quanxuan.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });

        /****
         * 全选功能
         * */
        allCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                Set<Integer> set = isCheckedMap.keySet();
                Iterator<Integer> iterator = set.iterator();
                if(isChecked){
                    while(iterator.hasNext()){
                        Integer keyId = iterator.next();
                        isCheckedMap.put(keyId,true);
                    }
                }else{
                    while(iterator.hasNext()){
                        Integer keyId = iterator.next();
                        isCheckedMap.put(keyId,false);
                    }
                }
                adapter.notifyDataSetChanged();
            }
        });

        textView_loadup.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                for(Map.Entry<Integer, Boolean> entry:isCheckedMap.entrySet()){
                    System.out.println(entry.getKey()+"--->"+entry.getValue());
                    if(entry.getValue().toString().contains("true")){
　　　　　　　　　　　　　　　　//  读取选中的数据
                        System.out.println("**"+itemList.get(entry.getKey()).name+itemList.get(entry.getKey()).address);
　　　　　　　　　　　　　　
                    }
                }
            }
        });

    }

    @Override
    public boolean onQueryTextSubmit(String query) {

        return false;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        return false;
    }


    /***
     *  adapter
     * **/
    class DraftDailyAdapter extends BaseAdapter {

        public List<Item> list;
        private Context context;
        LayoutInflater inflater;

        public DraftDailyAdapter(Context context, List<Item> list) {
            super();
            this.list = list;
            this.context = context;
            inflater = LayoutInflater.from(this.context);
        }
        @Override
        public int getCount() {
            return list == null ? 0 : list.size();
        }
        @Override
        public Object getItem(int location) {
            return list.get(location);
        }
        @Override
        public long getItemId(int position) {
            return position;
        }
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder = null;
            Item item = list.get(position);
            //Item的位置
            final int listPosition = position;
            //这个记录item的id用于操作isCheckedMap来更新CheckBox的状态
            final int id = item.id;
            if(convertView == null){
                holder = new ViewHolder();
                convertView = inflater.inflate(R.layout.layout_listviewitem, null);
                holder.tvName = (TextView)convertView.findViewById(R.id.dailyName);
                holder.dailyPic= (ImageView) convertView.findViewById(R.id.dailyPic);
                //  holder.deleteButton = (ImageButton)convertView.findViewById(R.id.deleteAttachment);
                holder.cBox = (CheckBox)convertView.findViewById(R.id.isCheakBox);
                convertView.setTag(holder);
            }else{
                holder = (ViewHolder) convertView.getTag();
            }
            // Log.d(TAG, "id="+id);
            holder.cBox.setChecked(isCheckedMap.get(id));
            holder.tvName.setText(item.name);
            if(item.name.contains("txt")){
                holder.dailyPic.setImageResource(R.mipmap.txt);
            }else{
                holder.dailyPic.setImageResource(R.mipmap.photo);
            }
//            holder.deleteButton.setOnClickListener(new View.OnClickListener() {
//                @Override
//                public void onClick(View paramView) {
//                    //Log.d(TAG, "deletePosition="+listPosition+"");
//                    //删除list中的数据
//                    list.remove(listPosition);
//                    //删除Map中对应选中状态数据
//                    isCheckedMap.remove(id);
//                    //通知列表数据修改
//                    adapter.notifyDataSetChanged();
//                }
//            });
            holder.cBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                  layout1.setVisibility(View.VISIBLE);
                  layout2.setVisibility(View.GONE);
                  layout3.setVisibility(View.VISIBLE);
                    if(isChecked){
                        isCheckedMap.put(id,true);
                    }else{
                        isCheckedMap.put(id,false);
                    }
                }
            });
            return convertView;
        }
        public final class ViewHolder {
            public TextView tvName;
            public ImageButton deleteButton;
            public CheckBox cBox;
            ImageView dailyPic;
        }
    }

// 填充数据类
    class Item {
        private Integer id;
        private String name;
        String address;
    }
}




 
ListView加checkBox可以实现全选等功能






























        

            
                
                  
                
                

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