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Android仿美团外卖菜单界面

程序员文章站 2022-03-23 13:43:27
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

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

<?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

<?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

<?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

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

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

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;

/**
 * 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","*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","*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","*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","*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","*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

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,也希望大家多多支持。