<&#63;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:id="@+id/activITy_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:orientation="horizontal" tools:context="com.example.a1_.activity.MainActivity">  <ListView   android:id="@+id/lv_left"   android:layout_width="100dp"   android:layout_height="match_parent"> </ListView>  <se.emilsjolander.stickylistheaders.StickyListHeadersListView   android:id="@+id/lv_right"   android:layout_width="match_parent"   android:layout_height="match_parent"> </se.emilsjolander.stickylistheaders.StickyListHeadersListView>  </LinearLayout>

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content">  <TextView   android:layout_margin="10dp"   android:id="@+id/tv_title"   android:layout_width="wrap_content"   android:layout_height="wrap_content"   android:layout_centerInParent="true"   android:text="菜单类别"   android:textSize="18sp" />  </RelativeLayout>

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="65dp" android:orientation="vertical">  <ImageView   android:src="@mipmap/ic_launcher"   android:layout_margin="4dp"   android:id="@+id/iv"   android:layout_width="50dp"   android:layout_height="50dp" />  <LinearLayout   android:layout_toRightOf="@id/iv"   android:orientation="vertical"   android:layout_margin="4dp"   android:layout_width="match_parent"   android:layout_height="match_parent">    <TextView     android:text="洋芋粉炒腊肉"     android:textSize="20sp"     android:id="@+id/tv_right_title1"     android:layout_width="wrap_content"     android:layout_height="wrap_content" />    <TextView     android:id="@+id/tv_right_title2"     android:text="洋芋粉炒腊肉"     android:textSize="16sp"     android:layout_width="wrap_content"     android:layout_height="wrap_content" />    <TextView     android:id="@+id/tv_right_count"     android:text="月销售54份"     android:textSize="18sp"     android:layout_width="wrap_content"     android:layout_height="wrap_content" />  </LinearLayout>  </RelativeLayout>

 package com.example.a1_.adapter;  import android.graphics.Color; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView;  import com.example.a1_.Bean.LeftBean; import com.example.a1_.R;  import java.util.List;  /**  * Created by Administrator on 2017.05.27.0027.  */  public class LeftAdapter extends BaseAdapter {  PRivate List<LeftBean> mList; private int currentLeftItem = 0; //创建一个构造方法  public LeftAdapter(List<LeftBean> mList) {   this.mList = mList; }  @override public int getCount() {   return mList.size(); }  @Override public LeftBean getItem(int position) {   return mList.get(position); }  @Override public long getItemId(int position) {   return position; }  @Override public View getView(int position, View convertView, ViewGroup parent) {    ViewHolder viewHolder = null;   if (convertView==null){     convertView = View.inflate(parent.getContext(), R.layout.left_item,null);      //创建viewHolder对象     viewHolder = new ViewHolder();     viewHolder.tv_title = (TextView) convertView.findViewById(R.id.tv_title);     //让viewholder挂在convertview上面一起复用     convertView.setTag(viewHolder);   }else {     //当convertView不为空时,吧viewholder取出来     viewHolder = (ViewHolder) convertView.getTag();   }    //获取对应条目的内容   LeftBean leftBean = getItem(position);   //把对应条目的内容设置在控件上   viewHolder.tv_title.setText(leftBean.title);     //给左侧条目设置颜色   if (currentLeftItem ==position){     viewHolder.tv_title.setTextColor(Color.red);   }   return convertView; }  public void setCurrentSelect(int currentLeftItem){   this.currentLeftItem = currentLeftItem; }  //创建一个viewholder,用来复用对象 class ViewHolder{   TextView tv_title; } }

 package com.example.a1_.adapter;  import android.content.Context; import android.graphics.Color; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ListView; import android.widget.TextView;  import com.example.a1_.Bean.LeftBean; import com.example.a1_.Bean.RightBean; import com.example.a1_.R;  import java.util.List; import java.util.Random;  import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;  /**  * Created by Administrator on 2017.05.27.0027.  */  public class RightAdapter extends BaseAdapter implements StickyListHeadersAdapter { private List<LeftBean> mLeft; private List<RightBean> mRight; private Context context;  public RightAdapter(List<LeftBean> mLeft, List<RightBean> mRight, Context context) {   this.mLeft = mLeft;   this.mRight = mRight;   this.context = context; }  @Override public View getHeaderView(int position, View convertView, ViewGroup parent) {   TextView tv = new TextView(context);   tv.setTextColor(Color.RED);   tv.setTextSize(18);   tv.setText(mRight.get(position).tyPE);   return tv; }  @Override public long getHeaderId(int position) {   return mRight.get(position).typeId; }  @Override public int getCount() {   return mRight.size(); }  @Override public RightBean getItem(int position) {   return mRight.get(position); }  @Override public long getItemId(int position) {   return position; }  @Override public View getView(int position, View convertView, ViewGroup parent) {    ViewHolder viewHolder = null;   if (convertView==null){     convertView = View.inflate(context, R.layout.right_item,null);     viewHolder = new ViewHolder();     viewHolder.title1 = (TextView) convertView.findViewById(R.id.tv_right_title1);     viewHolder.title2 = (TextView) convertView.findViewById(R.id.tv_right_title2);     viewHolder.count = (TextView) convertView.findViewById(R.id.tv_right_count);      convertView.setTag(viewHolder);   }else {     viewHolder = (ViewHolder) convertView.getTag();   }   RightBean rightBean = mRight.get(position);   viewHolder.title1.setText(rightBean.biaoti);   viewHolder.title2.setText(rightBean.biaoti);   //使用Random获取随机数   Random random = new Random();   int i = random.nextInt(100);   viewHolder.count.setText("月销量"+i+"份");   return convertView; }  static class ViewHolder{   TextView title1;   TextView title2;   TextView count; } }

 package com.example.a1_.Bean;   public class LeftBean { public String title; public int type;  }

 package com.example.a1_.Bean;  import android.R.string;  public class RightBean {  public String biaoti; public String type; public int typeId;  }

 package com.example.a1_.data;  import com.example.a1_.Bean.LeftBean; import com.example.a1_.Bean.RightBean;  import java.util.ArrayList; import java.util.List;  /**  * Created by wangcaisheng on 2017/5/27.  */  public class Data {  private static String[] leftData = new String[]{"13.9特价套餐","粗粮主食","佐餐小吃","用心营养套餐(不含主食)","三杯鸡双拼尊享套餐","带鱼双拼尊享套餐","红烧肉双拼尊享套餐"}; private static String[] rightData0 = new String[]{"洋芋粉炒腊肉","土鸡炖香菇","新疆大盘辣子土鸡","清炖土鸡块","农家蒸碗 ","香辣野猪肉","香辣薯条大虾","麻辣猪血"}; private static String[] rightData1 = new String[]{"商芝扣肉","羊肉萝卜","干烧鱼 ","干煸野猪肉 ","排骨火锅","土鸡火锅","牛肉火锅","狗肉火锅 "}; private static String[] rightData2 = new String[]{"虎皮辣子炒咸肉","重庆飘香水煮鱼","红烧土鸡块","干煸辣子土鸡","清炖全鸡 "}; private static String[] rightData3 = new String[]{"洋芋粉炒腊肉","土鸡炖香菇","新疆大盘辣子土鸡","清炖土鸡块","农家蒸碗 ","香辣野猪肉","香辣薯条大虾","麻辣猪血"}; private static String[] rightData4 = new String[]{"洋芋粉炒腊肉","土鸡炖香菇","新疆大盘辣子土鸡","清炖土鸡块","农家蒸碗 ","香辣野猪肉","香辣薯条大虾","麻辣猪血"}; private static String[] rightData5 = new String[]{"洋芋粉炒腊肉","土鸡炖香菇","新疆大盘辣子土鸡","清炖土鸡块","农家蒸碗 ","香辣野猪肉","香辣薯条大虾","麻辣猪血"}; private static String[] rightData6 = new String[]{"洋芋粉炒腊肉","土鸡炖香菇","新疆大盘辣子土鸡","清炖土鸡块","农家蒸碗 ","香辣野猪肉","香辣薯条大虾","麻辣猪血"};  public static List<LeftBean> getLeftData(){   List<LeftBean> list = new ArrayList<LeftBean>();   for (int i = 0; i < leftData.length; i++) {     LeftBean bean = new LeftBean();     bean.title = leftData[i];     bean.type = i;     list.add(bean);   }    return list;  }  public static List<RightBean> getRightData(List<LeftBean> list){   List<RightBean> rightList = new ArrayList<RightBean>();   for (int i = 0; i < list.size(); i++) {     LeftBean leftBean = list.get(i);     int mType = leftBean.type;     switch (mType) {       case 0:         rightList = getRightList(rightData0, leftBean, mType, rightList);         break;       case 1:         rightList = getRightList(rightData1, leftBean, mType, rightList);         break;       case 2:         rightList = getRightList(rightData2, leftBean, mType, rightList);         break;       case 3:         rightList = getRightList(rightData3, leftBean, mType, rightList);         break;       case 4:         rightList = getRightList(rightData4, leftBean, mType, rightList);         break;       case 5:         rightList = getRightList(rightData5, leftBean, mType, rightList);         break;       case 6:         rightList = getRightList(rightData6, leftBean, mType, rightList);         break;     }     }     return rightList;  }   private static List<RightBean> getRightList(String[] arr, LeftBean leftBean, int mType, List<RightBean> rightList){   for (int j = 0; j < arr.length; j++) {     RightBean bean = new RightBean();     bean.type = leftBean.title;     bean.biaoti = arr[j];     bean.typeId = mType;     rightList.add(bean);   }   return rightList; } }

 package com.example.a1_.activity;  import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.AdapterView; import android.widget.ListView;  import com.example.a1_.Bean.LeftBean; import com.example.a1_.Bean.RightBean; import com.example.a1_.R; import com.example.a1_.adapter.LeftAdapter; import com.example.a1_.adapter.RightAdapter; import com.example.a1_.data.Data;  import java.util.List;  import se.emilsjolander.stickylistheaders.StickyListHeadersListView;  public class MainActivity extends AppCompatActivity {  private ListView lv_left; private StickyListHeadersListView lv_right; private int currentLeftItem;  @Override protected void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.activity_main);   initView();   initData();   }  //初始化控件 private void initView() {   //初始化控件   lv_left = (ListView) findViewById(R.id.lv_left);   lv_right = (StickyListHeadersListView) findViewById(R.id.lv_right); }  //设置适配器 private void initData() {   //创建适配器   final LeftAdapter leftAdapter = new LeftAdapter(Data.getLeftData());   //获取左侧数据   final List<LeftBean> leftData = Data.getLeftData();   //获取右侧数据   final List<RightBean> rightData = Data.getRightData(leftData);   RightAdapter rightAdapter = new RightAdapter(leftData, rightData, this);    //为左侧布局设置适配器   lv_left.setAdapter(leftAdapter);   lv_right.setAdapter(rightAdapter);     //为左侧条目设置点击事件   lv_left.setOnItemClickListener(new AdapterView.OnItemClickListener() {     @Override     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {       //当左侧条目被点击时,记录下被点击条目的type       int type = leftData.get(position).type;       //遍历右侧条目,并获取右侧条目的typeId,与刚刚获取的type对比,是否一致       for (int i = 0; i < rightData.size(); i++) {         if (type == rightData.get(i).typeId) {           //如果找到对应的条目,那就将右侧条目滚动至对应条目,并跳出循环           lv_right.smoothScrollToPosition(i);           currentLeftItem = i;           //设置当前被选中的左侧条目           leftAdapter.setCurrentSelect(currentLeftItem);           //刷新数据适配器           leftAdapter.notifyDataSetChanged();           break;         }       }  //        Toast.makeText(MainActivity.this, "您选中了"+leftData.get(position).title, Toast.LENGTH_SHORT).show();     }   });    //为右侧条目设置点击事件       lv_right.setOnItemClickListener(new AdapterView.OnItemClickListener() {     @Override     public void onItemClick(AdapterView<?> parent, View view, int position, long id) { //        Toast.makeText(MainActivity.this, "右侧条目被点击了"+position, Toast.LENGTH_SHORT).show();        //当右侧条目被点击时,获取被点击条目的typeId       int typeId = rightData.get(position).typeId;       //遍历左侧条目       for (int i = 0; i < leftData.size(); i++) {         //获取左侧条目的type,与右侧条目的typeId对比是否一致         if (typeId == leftData.get(i).type) {           //说明找到了对应条目,跳出循环,设置当前被选中的条目           currentLeftItem = i;           //设置当前被选中的左侧条目           leftAdapter.setCurrentSelect(currentLeftItem);           //刷新数据适配器           leftAdapter.notifyDataSetChanged();           break;         }        }     }   }); } }