Android仿美团外卖菜单界面

2020-11-04 11:02:48 浏览数 (1)

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

代码语言：javascript复制
<?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

左侧布局

代码语言：javascript复制
<?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

右侧布局

代码语言：javascript复制
<?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

适配器

左侧适配器

代码语言：javascript复制
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;
}
}

右侧适配器

代码语言：javascript复制
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;
}
}

javabean文件

左侧

代码语言：javascript复制
package com.example.a1_.Bean;


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

}

右侧

代码语言：javascript复制
package com.example.a1_.Bean;

import android.R.string;

public class RightBean {

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

}

数据源

代码语言：javascript复制
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;
}
}

核心代码

代码语言：javascript复制
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;
}
}
}
});
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助。

android 布局

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