Android仿美团外卖菜单界面

美团外卖菜单界面的Android实现代码，供大家参考，具体内容如下

布局文件

总布局

左侧布局

右侧布局

适配器

左侧适配器

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;



public class LeftAdapter extends baseAdapter {

private List mList;
private int currentLeftItem = 0;
//创建一个构造方法

public LeftAdapter(List 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;
}
}

右侧适配器

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;



public class RightAdapter extends baseAdapter implements StickyListHeadersAdapter {
private List mLeft;
private List mRight;
private Context context;

public RightAdapter(List mLeft, List 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;
}
}

javabean文件

左侧

package com.example.a1_.Bean;


public class LeftBean {
public String title;
public int type;

}

右侧

package com.example.a1_.Bean;

import android.R.string;

public class RightBean {

public String biaoti;
public String type;
public int typeId;

}

数据源

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;



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 getLeftData(){
  List list = new ArrayList();
  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 getRightData(List list){
  List rightList = new ArrayList();
  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 getRightList(String[] arr, LeftBean leftBean, int mType, List 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;
}
}

核心代码

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 leftData = Data.getLeftData();
  //获取右侧数据
  final List 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;
 }

      }
    }
  });
}
}

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