zoukankan      html  css  js  c++  java
  • Android listview中CheckBox全选实现

           上一篇博文讲解了listview中CheckBox选中混乱的问题,下面我来讲listview全选的实现。

           我们来理一下思路,以为全选按钮一般都在主活动中,所以他的选中监听也只能在主活动中写,如果在listAdaper中写的话,程序会报错,那么如何才能将两个联系起来呢?解决方法当然是定义static状态数组,当在主活动中选中全选按钮时,改变list中CheckBox的数组,然后刷新listview,这样不就很好的解决了吗,下面来看代码。

         主活动的布局文件:

    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/activity_mygouwuche"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="com.example.book.MygouwucheActivity">
       
        <LinearLayout
            android:id="@+id/mygouwuchelayout"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@+id/Mygouwuchetoolbar"
            android:layout_alignParentStart="true">
    
            <ListView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:layout_below="@+id/Mygouwuchetoolbar"
                android:layout_alignParentStart="true"
                android:id="@+id/mygouwuchelistview" />
            <LinearLayout
                android:orientation="horizontal"
                android:layout_width="match_parent"
                android:layout_height="80dp"
                android:background="#FFFFFFFF"
                android:layout_alignParentTop="true"
                android:layout_alignParentEnd="true">
    
                <CheckBox
                    android:layout_marginLeft="15dp"
                    android:text="      全选"
                    android:layout_width="130dp"
                    android:layout_height="wrap_content"
                    android:id="@+id/mygouwuchecheckBox"
                    android:button="@drawable/checkboxseletor" />
                <TextView
                    android:text="合计:"
                    android:textSize="17sp"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                   />
    
                <TextView
                    android:text="¥"
                    android:textSize="17sp"
                    android:textColor="#FFEC6D23"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:id="@+id/textView"
                    android:layout_weight="1"/>
    
                <Button
                    android:text="购买"
                    android:layout_width="110dp"
                    android:layout_height="60dp"
                    android:textColor="#FFFFFFFF"
                    android:textSize="20sp"
                    android:id="@+id/button"
                    android:background="#FFC90C06" />
    
            </LinearLayout>
    
        </LinearLayout>
    
    
    
    
    </RelativeLayout>

    listview 的布局:

    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/activity_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="com.example.book.MainActivity"
        android:background="#FFFFFFFF">
    
    
        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_marginTop="11dp"
            android:weightSum="1"
            android:layout_alignParentTop="true"
            android:layout_alignParentStart="true"
            android:layout_height="110dp">
    
            <CheckBox
                android:layout_gravity="center"
                android:layout_height="match_parent"
                android:layout_marginLeft="15dp"
                android:layout_width="30dp"
                android:id="@+id/Mygouwuchexuanze"
                android:button="@drawable/checkboxseletor"/>
    
            <ImageView
                app:srcCompat="@color/colorPrimary"
                android:id="@+id/mygouwuchebook"
                android:layout_marginTop="10dp"
                android:layout_marginBottom="10dp"
                android:layout_marginLeft="15dp"
                android:layout_width="70dp"
                android:layout_height="90dp" />
    
            <LinearLayout
                android:orientation="vertical"
                android:layout_height="110dp"
                android:layout_width="80dp">
                <TextView
                    android:text="TextView"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="10dp"
                    android:layout_marginLeft="15dp"
                    android:textSize="15sp"
                    android:id="@+id/Mygouwuchebookname" />
    
                <TextView
                    android:text="TextView"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="20dp"
                    android:layout_marginLeft="15dp"
                    android:textSize="15sp"
                    android:textColor="@android:color/holo_red_light"
                    android:id="@+id/Mygouwuchebookprice" />
            </LinearLayout>
    
            <LinearLayout
                android:orientation="horizontal"
                android:layout_width="wrap_content"
                android:layout_weight="1"
                android:layout_height="110dp">
                <Button
                    android:text="-"
                    android:textSize="40dp"
                    android:layout_height="match_parent"
                    android:id="@+id/Mygouwuchebooknumjian"
                    android:layout_width="30dp"
                    android:background="#FFFFFFFF"
                    style="?android:attr/borderlessButtonStyle"
                    android:textColor="#979696" />
                <TextView
                    android:layout_gravity="center"
                    android:layout_marginLeft="5dp"
                    android:textSize="25dp"
                    android:text="1"
                    android:layout_height="wrap_content"
                    android:id="@+id/Mygouwuchebooknum"
                    android:layout_width="30dp"
                    android:textDirection="inherit" />
                <Button
                    android:text="+"
                    android:textSize="30dp"
                    android:layout_height="match_parent"
                    android:id="@+id/Mygouwuchebooknumjia"
                    android:layout_width="30dp"
                    android:background="#FFFFFFFF"
                    style="?android:attr/borderlessButtonStyle"
                    android:textColor="#979696" />
    
                <Button
                    android:text="删除"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:id="@+id/Mygouwuchebookshanchu"
                    android:background="#FFFFFFFF"
                    android:layout_weight="1" />
            </LinearLayout>
    
    
    
        </LinearLayout>
    
    </RelativeLayout>

    adapter的代码:

    package com.example.book;
    
    import android.content.Context;
    import android.graphics.Color;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.ArrayAdapter;
    import android.widget.Button;
    import android.widget.CheckBox;
    import android.widget.CompoundButton;
    import android.widget.ImageView;
    import android.widget.TextView;
    import android.widget.Toast;
    
    import org.w3c.dom.Text;
    
    import java.util.List;
    
    /**
     * Created by THINK on 2017/10/28.
     */
    
    public class MygouwuchebookAdapter extends ArrayAdapter<Mygouwuchebookclass>
    {
        private int resourseId;
        private Context context;
        private boolean[] checks;//定义数组来保存CheckBox的状态
        private String[] booknum;
        private int length;
        public MygouwuchebookAdapter(Context context, int textViewResourseId, List<Mygouwuchebookclass> objects)
        {
            super(context,textViewResourseId,objects);
            resourseId=textViewResourseId;
            this.context=context;
            checks = new boolean[objects.size()];//初始化数组
            booknum=new String[objects.size()];
            length=objects.size();
            for(int i=0;i<objects.size();i++)
            {
                booknum[i]="1";
            }
        }
        @Override
        public View getView(final int position, View  converView, ViewGroup parent)
        {
            Mygouwuchebookclass mygouwuchebookclass=getItem(position);
            View view;
            final ViewHolder viewHolder;
            if(converView==null)
            {
                view = LayoutInflater.from(getContext()).inflate(resourseId, parent, false);
                viewHolder=new ViewHolder();
                viewHolder.mygouwuchexuanze=(CheckBox) view.findViewById(R.id.Mygouwuchexuanze);
                viewHolder.mygouwuchebookimage=(ImageView)view.findViewById(R.id.mygouwuchebook);
                viewHolder.mygouwuchebookname=(TextView)view.findViewById(R.id.Mygouwuchebookname);
                viewHolder.mugouwuchebookprice=(TextView)view.findViewById(R.id.Mygouwuchebookprice);
                viewHolder.mygouwuchebooknum=(TextView)view.findViewById(R.id.Mygouwuchebooknum);
                viewHolder.mygouwuchebooknumjian=(Button)view.findViewById(R.id.Mygouwuchebooknumjian);
                viewHolder.mygouwuchebooknumjia=(Button)view.findViewById(R.id.Mygouwuchebooknumjia);
                viewHolder.mygouwuchebookshanchu=(Button)view.findViewById(R.id.Mygouwuchebookshanchu);
                view.setTag(viewHolder);
            }
            else
            {
                view=converView;
                viewHolder=(ViewHolder)view.getTag();
            }
            final int pos  = position;//定义一个final的int类型pos用来记录点击的位置
            viewHolder.mygouwuchexuanze.setFocusable(false);
            viewHolder.mygouwuchebooknumjian.setFocusable(false);
            viewHolder.mygouwuchebooknumjia.setFocusable(false);
            viewHolder.mygouwuchebookshanchu.setFocusable(false);
            viewHolder.mygouwuchebooknumjian.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(viewHolder.mygouwuchebooknum.getText().toString().equals("1"))
                    {
    
                    }
                    else
                    {
                        viewHolder.mygouwuchebooknum.setText(String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString())-1));
                        booknum[pos]=String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString()));
                        
                    }
    
    
                }
            });
            viewHolder.mygouwuchebooknumjia.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v)
                {
                    viewHolder.mygouwuchebooknum.setText(String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString())+1));
                    booknum[pos]=String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString()));
                    
                }
            });
    
            viewHolder.mygouwuchebookshanchu.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(context,position+"查看",Toast.LENGTH_LONG).show();
                }
            });
            viewHolder.mygouwuchebookimage.setImageResource(mygouwuchebookclass.getImageviewId());
            viewHolder.mygouwuchebookname.setText(mygouwuchebookclass.getBookname());
            viewHolder.mugouwuchebookprice.setText(String.valueOf(mygouwuchebookclass.getPrice()));
            //pos必须声明为final
            //下面是CheckBox的点击事件,
            viewHolder.mygouwuchexuanze.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
                @Override
                public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
                    checks[pos] = isChecked;//当被选中时,将该位置的CheckBox的状态保存下来
                }});
            viewHolder.mygouwuchexuanze.setChecked(checks[pos]);//每次加载这个item时,将CheckBox的状态赋值就OK了
            viewHolder.mygouwuchebooknum.setText(booknum[pos]);
            return  view;
        }
    
        public static boolean[] getChecks() {
            return checks;
        }
    
        public static void setChecks(boolean[] checks) {
            MygouwuchebookAdapter.checks = checks;
        }
       
        class ViewHolder
        {
            CheckBox mygouwuchexuanze;
            ImageView mygouwuchebookimage;
            TextView mygouwuchebookname;
            TextView mugouwuchebookprice;
            TextView mygouwuchebooknum;
            Button mygouwuchebooknumjian;
            Button mygouwuchebooknumjia;
            Button mygouwuchebookshanchu;
            CheckBox mygouwuchequanxuan;
        }
    }

    主活动的代码:

    package com.example.book;
    
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.support.v7.widget.Toolbar;
    import android.text.Layout;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.AdapterView;
    import android.widget.CheckBox;
    import android.widget.CompoundButton;
    import android.widget.HorizontalScrollView;
    import android.widget.LinearLayout;
    import android.widget.ListView;
    import android.widget.Toast;
    
    import java.util.ArrayList;
    import java.util.List;
    
    public class MygouwucheActivity extends AppCompatActivity
    {
        private List<Mygouwuchebookclass> mydianpubookclassList=new ArrayList<>();
     
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_mygouwuche);
            inits();
     MygouwuchebookAdapter
    mygouwuchebookAdapter=new MygouwuchebookAdapter(MygouwucheActivity.this,R.layout.mygouwuchebook,mydianpubookclassList); ListView listView=(ListView)findViewById(R.id.mygouwuchelistview); listView.setAdapter(mygouwuchebookAdapter); listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, final int position, long id) { Toast.makeText(MygouwucheActivity.this,position+"sss",Toast.LENGTH_LONG).show(); } });  } public void inits() { for (int i = 0; i < 3; i++) { Mygouwuchebookclass mygouwuchebookclass = new Mygouwuchebookclass(R.drawable.gonglue, "数据结构对对对点点滴滴", 3); mydianpubookclassList.add(mygouwuchebookclass); Mygouwuchebookclass mygouwuchebookclass1 = new Mygouwuchebookclass(R.drawable.fenlei, "数据结构对对对点点滴滴", 5); mydianpubookclassList.add(mygouwuchebookclass1); Mygouwuchebookclass mygouwuchebookclass2 = new Mygouwuchebookclass(R.drawable.fenlei, "数据结构对对对点点滴滴", 6); mydianpubookclassList.add(mygouwuchebookclass2); Mygouwuchebookclass mygouwuchebookclass3 = new Mygouwuchebookclass(R.drawable.shopping, "数据结构对对对点点滴滴", 2); mydianpubookclassList.add(mygouwuchebookclass3); Mygouwuchebookclass mygouwuchebookclass4 = new Mygouwuchebookclass(R.drawable.fenlei, "数据结构对对对点点滴滴", 8); mydianpubookclassList.add(mygouwuchebookclass4); Mygouwuchebookclass mygouwuchebookclass5 = new Mygouwuchebookclass(R.drawable.shopping, "数据结构对对对点点滴滴", 1); mydianpubookclassList.add(mygouwuchebookclass5); Mygouwuchebookclass mygouwuchebookclass6 = new Mygouwuchebookclass(R.drawable.gonglue, "数据结构对对对点点滴滴", 0); mydianpubookclassList.add(mygouwuchebookclass6); } } }

    下面是解决方案:

    package com.example.book;
    
    import android.content.Context;
    import android.graphics.Color;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.ArrayAdapter;
    import android.widget.Button;
    import android.widget.CheckBox;
    import android.widget.CompoundButton;
    import android.widget.ImageView;
    import android.widget.TextView;
    import android.widget.Toast;
    
    import org.w3c.dom.Text;
    
    import java.util.List;
    
    /**
     * Created by THINK on 2017/10/28.
     */
    
    public class MygouwuchebookAdapter extends ArrayAdapter<Mygouwuchebookclass>
    {
        private int resourseId;
        private Context context;
        private static boolean[] checks;//定义数组来保存CheckBox的状态,必须定义为static才能在主活动中调用
        private String[] booknum;//同样定义数组来保存Textview的状态
        private int length;//定义一个长度,来获取listview 的长度
        public MygouwuchebookAdapter(Context context, int textViewResourseId, List<Mygouwuchebookclass> objects)
        {
            super(context,textViewResourseId,objects);
            resourseId=textViewResourseId;
            this.context=context;
            checks = new boolean[objects.size()];//初始化数组
            booknum=new String[objects.size()];
            length=objects.size();
            for(int i=0;i<objects.size();i++)//这里是我的text的初始化text,为1
            {
                booknum[i]="1";
            }
        }
        @Override
        public View getView(final int position, View  converView, ViewGroup parent)
        {
            Mygouwuchebookclass mygouwuchebookclass=getItem(position);
            View view;
            final ViewHolder viewHolder;
            if(converView==null)
            {
                view = LayoutInflater.from(getContext()).inflate(resourseId, parent, false);
                viewHolder=new ViewHolder();
                viewHolder.mygouwuchexuanze=(CheckBox) view.findViewById(R.id.Mygouwuchexuanze);
                viewHolder.mygouwuchebookimage=(ImageView)view.findViewById(R.id.mygouwuchebook);
                viewHolder.mygouwuchebookname=(TextView)view.findViewById(R.id.Mygouwuchebookname);
                viewHolder.mugouwuchebookprice=(TextView)view.findViewById(R.id.Mygouwuchebookprice);
                viewHolder.mygouwuchebooknum=(TextView)view.findViewById(R.id.Mygouwuchebooknum);
                viewHolder.mygouwuchebooknumjian=(Button)view.findViewById(R.id.Mygouwuchebooknumjian);
                viewHolder.mygouwuchebooknumjia=(Button)view.findViewById(R.id.Mygouwuchebooknumjia);
                viewHolder.mygouwuchebookshanchu=(Button)view.findViewById(R.id.Mygouwuchebookshanchu);
                view.setTag(viewHolder);
            }
            else
            {
                view=converView;
                viewHolder=(ViewHolder)view.getTag();
            }
            final int pos  = position;//定义一个final的int类型pos用来记录点击的位置
            viewHolder.mygouwuchexuanze.setFocusable(false);
            viewHolder.mygouwuchebooknumjian.setFocusable(false);
            viewHolder.mygouwuchebooknumjia.setFocusable(false);
            viewHolder.mygouwuchebookshanchu.setFocusable(false);
            viewHolder.mygouwuchebooknumjian.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(viewHolder.mygouwuchebooknum.getText().toString().equals("1"))
                    {
    
                    }
                    else
                    {
                        viewHolder.mygouwuchebooknum.setText(String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString())-1));
                        booknum[pos]=String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString()));
                        //text的text改变时,将text保存进数组里面
                    }
    
    
                }
            });
            viewHolder.mygouwuchebooknumjia.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v)
                {
                    viewHolder.mygouwuchebooknum.setText(String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString())+1));
                    booknum[pos]=String.valueOf(Integer.parseInt(viewHolder.mygouwuchebooknum.getText().toString()));
                    //text的text改变时,将text保存进数组里面
                }
            });
    
            viewHolder.mygouwuchebookshanchu.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(context,position+"查看",Toast.LENGTH_LONG).show();
                }
            });
            viewHolder.mygouwuchebookimage.setImageResource(mygouwuchebookclass.getImageviewId());
            viewHolder.mygouwuchebookname.setText(mygouwuchebookclass.getBookname());
            viewHolder.mugouwuchebookprice.setText(String.valueOf(mygouwuchebookclass.getPrice()));
            //pos必须声明为final
            //下面是CheckBox的点击事件,
            viewHolder.mygouwuchexuanze.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
                @Override
                public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
                    checks[pos] = isChecked;//当被选中时,将该位置的CheckBox的状态保存下来
                }});
            viewHolder.mygouwuchexuanze.setChecked(checks[pos]);//每次加载这个item时,将CheckBox的状态赋值就OK了
            viewHolder.mygouwuchebooknum.setText(booknum[pos]);//每次加载item时,给TextView的text赋值就OK了
            return  view;
        }
    
        public static boolean[] getChecks() {
            return checks;
        }
    
        public static void setChecks(boolean[] checks) {
            MygouwuchebookAdapter.checks = checks;
        }
        public void quanxuan(boolean ischecked)
        {
            for(int i=0;i<length;i++)
            {
                checks[i]=ischecked;
            }
        }//增加这个函数,如果主活动的选中全选时,将listview中每个CheckBox的状态都改为选中就行
       class ViewHolder
        {
            CheckBox mygouwuchexuanze;
            ImageView mygouwuchebookimage;
            TextView mygouwuchebookname;
            TextView mugouwuchebookprice;
            TextView mygouwuchebooknum;
            Button mygouwuchebooknumjian;
            Button mygouwuchebooknumjia;
            Button mygouwuchebookshanchu;
            CheckBox mygouwuchequanxuan;
        }
    }

    主活动改变代码:

    package com.example.book;
    
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.support.v7.widget.Toolbar;
    import android.text.Layout;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.AdapterView;
    import android.widget.CheckBox;
    import android.widget.CompoundButton;
    import android.widget.HorizontalScrollView;
    import android.widget.LinearLayout;
    import android.widget.ListView;
    import android.widget.Toast;
    
    import java.util.ArrayList;
    import java.util.List;
    
    public class MygouwucheActivity extends AppCompatActivity
    {
        private List<Mygouwuchebookclass> mydianpubookclassList=new ArrayList<>();
        private  MygouwuchebookAdapter mygouwuchebookAdapter;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_mygouwuche);
            Toolbar toolbar=(Toolbar)findViewById(R.id.Mygouwuchetoolbar);
            toolbar.setTitle("");
            toolbar.inflateMenu(R.menu.menu_mygouwuche);
            setSupportActionBar(toolbar);
            inits();
            mygouwuchebookAdapter=new MygouwuchebookAdapter(MygouwucheActivity.this,R.layout.mygouwuchebook,mydianpubookclassList);
            ListView listView=(ListView)findViewById(R.id.mygouwuchelistview);
            listView.setAdapter(mygouwuchebookAdapter);
            listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
            {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, final int position, long id)
                {
    
                    Toast.makeText(MygouwucheActivity.this,position+"sss",Toast.LENGTH_LONG).show();
                }
            });
           CheckBox checkBoxquanxuan=(CheckBox)findViewById(R.id.mygouwuchecheckBox);
            checkBoxquanxuan.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
                @Override
                public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
    
                        mygouwuchebookAdapter.quanxuan(isChecked);//当全选按钮状态改变时,改变listview中所以CheckBox的状态,然后刷新listview适配器
    mygouwuchebookAdapter.notifyDataSetChanged(); }});
    } public void inits() { for (int i = 0; i < 3; i++) { Mygouwuchebookclass mygouwuchebookclass = new Mygouwuchebookclass(R.drawable.gonglue, "数据结构对对对点点滴滴", 3); mydianpubookclassList.add(mygouwuchebookclass); Mygouwuchebookclass mygouwuchebookclass1 = new Mygouwuchebookclass(R.drawable.fenlei, "数据结构对对对点点滴滴", 5); mydianpubookclassList.add(mygouwuchebookclass1); Mygouwuchebookclass mygouwuchebookclass2 = new Mygouwuchebookclass(R.drawable.fenlei, "数据结构对对对点点滴滴", 6); mydianpubookclassList.add(mygouwuchebookclass2); Mygouwuchebookclass mygouwuchebookclass3 = new Mygouwuchebookclass(R.drawable.shopping, "数据结构对对对点点滴滴", 2); mydianpubookclassList.add(mygouwuchebookclass3); Mygouwuchebookclass mygouwuchebookclass4 = new Mygouwuchebookclass(R.drawable.fenlei, "数据结构对对对点点滴滴", 8); mydianpubookclassList.add(mygouwuchebookclass4); Mygouwuchebookclass mygouwuchebookclass5 = new Mygouwuchebookclass(R.drawable.shopping, "数据结构对对对点点滴滴", 1); mydianpubookclassList.add(mygouwuchebookclass5); Mygouwuchebookclass mygouwuchebookclass6 = new Mygouwuchebookclass(R.drawable.gonglue, "数据结构对对对点点滴滴", 0); mydianpubookclassList.add(mygouwuchebookclass6); } } }

    下面是截图:

                                         

    怎么样是不是很简单就实现了listview中CheckBox的全选状态很简单。

  • 相关阅读:
    173. Binary Search Tree Iterator
    199. Binary Tree Right Side View
    230. Kth Smallest Element in a BST
    236. Lowest Common Ancestor of a Binary Tree
    337. House Robber III
    449. Serialize and Deserialize BST
    508. Most Frequent Subtree Sum
    513. Find Bottom Left Tree Value
    129. Sum Root to Leaf Numbers
    652. Find Duplicate Subtrees
  • 原文地址:https://www.cnblogs.com/zll20153246/p/7770940.html
Copyright © 2011-2022 走看看