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2023-06(5)

基于Android开发二手车交易平台

发布于2021-06-12 16:11     阅读(401)     评论(0)     点赞(11)     收藏(2)

基于Android开发二手车交易平台

作者：黑衣侠客

一、前言

最近由于软工老师布置了开发二手车交易平台的作业，同时也想复习一下大一学习的Android知识，因此，这次使用了基于Android平台和leancloud网络服务器，对二手车交易平台进行开发，由于这次作业老师要求添加数据分析和数据挖掘，所以这次开发我基本上没有太大的把握，能写成什么样算什么样，和往常一样，这篇博客我会在程序开发过程中，依次进行补充，不过这篇博客，主要涵盖了我的软件开发流程，所以偏向于软工角度偏多。

二、需求分析

这次的需求分析也只是大概的一个框架，里面涵盖了这个项目的基本功能及一些老师要求上的高级需求设计：

只是一个需求说明，能不能实现就是另外一说了

销售端：

  1. 车辆信息管理
  2. 二手车的录入
  3. 二手车销售信息数据模块
  4. 客群消费分析模块

用户端：

  1. 基于网络服务器的注册登录
  2. 地理位置信息选择（联网获取）
  3. 轮播图
  4. 车辆品牌检索功能
  5. 车型分类
  6. 价格分类
  7. 限号处理（选做）

管理端：

  1. 用户管理
  2. 二手车评估入库模块
  3. 二手车维修、清理、库存模块
  4. 二手车销售信息数据分析管理模块
  5. 客群消费分析模块（最好带有图表分析）
数据分析：

对数据和需求进行分析，利用合适的图表进行建模表示

数据挖掘：

还未找到平台（自选添加）

评估系统：
  1. 年限
  2. 品牌
  3. 车况
  4. 维修费用
  5. 厂家
  6. 型号
  7. 历史记录（已跑公里数）
关于数据：

不少于30个车型，按照汽车热度优先级进行顺序排列，要求记录本地区/全国过去10年的相关数据，全球过去30年的相关数据，并且可以处理异常识别，异常计算等。
在这里插入图片描述

三、简单设计

这里我展示了一些目前已经开发好的程序页面：
这个是展示动画

下面是图片：








另外这里在放一张服务器的图片：

在这里插入图片描述
在这里插入图片描述
在这里插入图片描述

四、代码设计

由于这次需要对车型的基本信息进行分类，所以我写了很多个Activity对应不同的车型主题，方便对每个界面进行不同的编辑，缺点就是太麻烦了

  • 首先是对不同的依赖的添加：

在这里插入图片描述

由于还没有添加车型检索功能的API，所以这里的依赖也只是暂时的，只是提供了与网络服务器的连接，目前只是实现了利用服务器进行用户的联网注册登录，以后我会依次完善功能。

与此同时，需要注意的是：

这里需要改一下版本号，目的是为了可以将数据更方便的写入leancloud服务器。

之后在project的build.gradle中写入：
在这里插入图片描述
在这里插入图片描述
目前的结构架构是：
在这里插入图片描述

MainActivity.java：
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private ImageView find;
    /*private String[] data = { "奥迪", "阿斯顿·马丁","奔驰","宝马","保时捷","本田","宾利","别克",
    "比亚迪","布加迪","大众","丰田","福特","法拉利","红旗","捷豹",
    "劳斯莱斯","兰博基尼","路虎","马自达","玛莎拉蒂","迈巴赫","雪佛兰","北京现代","雷克萨斯"};
    */
    private List<Car> carList = new ArrayList<>();

    private ImageView benchi;
    private ImageView aodi;
    private ImageView baoma;
    private ImageView dazhong;
    private ImageView bentian;
    private ImageView leikesasi;
    private ImageView fengtian;
    private ImageView bieke;
    private ImageView woerwo;
    private ImageView lanbojini;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //设置状态栏为透明
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }

        getSupportActionBar().hide();
        find = findViewById(R.id.find);
        benchi = findViewById(R.id.main_benchi);
        aodi = findViewById(R.id.main_aodi);
        baoma = findViewById(R.id.main_baoma);
        dazhong = findViewById(R.id.main_dazhong);
        bentian = findViewById(R.id.main_bentian);
        leikesasi = findViewById(R.id.main_leikesasi);
        fengtian = findViewById(R.id.main_fengtian);
        bieke = findViewById(R.id.main_bieke);
        woerwo = findViewById(R.id.main_woerwo);
        lanbojini = findViewById(R.id.main_lanbojini);
        find.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,findActivity.class);
                startActivity(intent);
            }
        });
        benchi.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,Car_Choose.class);
                startActivity(intent);
            }
        });
        aodi.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,AodiActivity.class);
                startActivity(intent);
            }
        });
        baoma.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,BaomaActivity.class);
                startActivity(intent);
            }
        });
        dazhong.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,DazhongActivity.class);
                startActivity(intent);
            }
        });
        bentian.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,BentianActivity.class);
                startActivity(intent);
            }
        });
        leikesasi.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,LeikesasiActivity.class);
                startActivity(intent);
            }
        });
        fengtian.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,FengtianActivity.class);
                startActivity(intent);
            }
        });
        bieke.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,BiekeActivity.class);
                startActivity(intent);
            }
        });
        woerwo.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,WoerwoActivity.class);
                startActivity(intent);
            }
        });
        lanbojini.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,LanbojiniActivity.class);
                startActivity(intent);
            }
        });
        initCars();
        CarAdapter adapter = new CarAdapter(
                MainActivity.this , R.layout.car_item, carList);
        ListView listView = findViewById(R.id.list_view);
        listView.setAdapter(adapter);

        //添加listView的点击功能

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                 Car car = carList.get(position);
                //Toast.makeText(MainActivity.this, car.getName(), Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(MainActivity.this,Car_Choose.class);
                startActivity(intent);
            }
        });
    }

    //初始化车类型的30组数据

    private void initCars(){
        Car aodi = new Car("奥迪",R.drawable.aodi,"德国");
        carList.add(aodi);
        Car benchi = new Car("奔驰",R.drawable.benchi,"德国");
        carList.add(benchi);
        Car baoma = new Car("宝马",R.drawable.baoma,"德国");
        carList.add(baoma);
        Car leikesasi = new Car("雷克萨斯",R.drawable.leikesasi,"日本");
        carList.add(leikesasi);
        Car dazhong = new Car("大众",R.drawable.dazhong,"德国");
        carList.add(dazhong);
        Car bentian = new Car("本田",R.drawable.bentian,"日本");
        carList.add(bentian);
        Car fengtian = new Car("丰田",R.drawable.fengtian,"日本");
        carList.add(fengtian);
        Car bieke = new Car("别克",R.drawable.bieke,"美国");
        carList.add(bieke);
        Car woerwo = new Car("沃尔沃",R.drawable.woerwo,"瑞典");
        carList.add(woerwo);
        Car lanbojini = new Car("兰博基尼",R.drawable.lanbojini,"意大利");
        carList.add(lanbojini);
        Car asidunmading = new Car("阿斯顿·马丁",R.drawable.asidunmading,"英国");
        carList.add(asidunmading);
        Car baoshijie = new Car("保时捷",R.drawable.baoshijie,"德国");
        carList.add(baoshijie);
        Car binli = new Car("宾利",R.drawable.binli,"宾利");
        carList.add(binli);
        Car bujiadi = new Car("布加迪",R.drawable.bujiadi,"法国");
        carList.add(bujiadi);
        Car biyadi = new Car("比亚迪",R.drawable.biyadi,"比亚迪");
        carList.add(biyadi);
        Car fute = new Car("福特",R.drawable.fute,"美国");
        carList.add(fute);
        Car falali = new Car("法拉利",R.drawable.falali,"意大利");
        carList.add(falali);
        Car hongqi = new Car("红旗",R.drawable.hongqi,"中国");
        carList.add(hongqi);
        Car jiebao = new Car("捷豹",R.drawable.jiebao,"英国");
        carList.add(jiebao);
        Car laosilaisi = new Car("劳斯莱斯",R.drawable.laosilaisi,"英国");
        carList.add(laosilaisi);
        Car luhu = new Car("路虎",R.drawable.luhu,"英国");
        carList.add(luhu);
        Car mazida = new Car("马自达",R.drawable.mazida,"日本");
        carList.add(mazida);
        Car mashaladi = new Car("玛莎拉蒂",R.drawable.mashaladi,"日本");
        carList.add(mashaladi);
        Car maibahe = new Car("迈巴赫",R.drawable.maibahe,"德国");
        carList.add(maibahe);
        Car xuefulan = new Car("雪佛兰",R.drawable.xuefulan,"美国");
        carList.add(xuefulan);
        Car xiandai = new Car("现代",R.drawable.beijingxiandai,"韩国");
        carList.add(xiandai);
        Car leikesasis = new Car("雷克萨斯",R.drawable.leikesasi,"日本");
        carList.add(leikesasis);
        Car aerfaluomiou = new Car("阿尔法·罗密欧",R.drawable.aerfaluomiou,"意大利");
        carList.add(aerfaluomiou);
        Car changcheng = new Car("长城",R.drawable.changcheng,"中国");
        carList.add(changcheng);
        Car hanma = new Car("悍马",R.drawable.hanma,"美国");
        carList.add(hanma);
    }
}
Login.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.Toast;

public class Login extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        getSupportActionBar().hide();
        if(Build.VERSION.SDK_INT >= 21){
            Window window = getWindow();
            window.setStatusBarColor(getResources().getColor(R.color.colorLogin));
        }
        Button login = findViewById(R.id.login);
        login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Login.this,Login2.class);
                startActivity(intent);
            }
        });
        Button login2 = findViewById(R.id.login2);
        login2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Toast.makeText(Login.this, "游客登录", Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(Login.this,ViewPagerActivity.class);
                startActivity(intent);
            }
        });
    }
}
Login2.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.avos.avoscloud.AVException;
import com.avos.avoscloud.AVUser;
import com.avos.avoscloud.LogInCallback;

public class Login2 extends AppCompatActivity {
    private EditText name;
    private EditText password;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login2);
        if(Build.VERSION.SDK_INT >= 21 ){
            Window window = getWindow();
            window.setStatusBarColor(getResources().getColor(R.color.colorHead));
        }
        getSupportActionBar().hide();
        Button login = findViewById(R.id.yonghu_login);
        name = findViewById(R.id.yonghuming);
        password = findViewById(R.id.mima);
        login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Toast.makeText(Login2.this, "登录成功", Toast.LENGTH_SHORT).show();
                if(!name.getText().toString().equals("")&&!password.getText().toString().equals("")){
                    AVUser.logInInBackground(name.getText().toString(), password.getText().toString(), new LogInCallback<AVUser>() {
                        @Override
                        public void done(AVUser avUser, AVException e) {
                            if(e==null){
                                startActivity(new Intent(Login2.this,ViewPagerActivity.class));
                                finish();
                            }else{
                                Toast.makeText(Login2.this, "用户名或密码错误", Toast.LENGTH_SHORT).show();
                            }
                        }
                    });
                }else{
                    if(name.getText().toString().equals("")&&password.getText().toString().equals("")){
                        Toast.makeText(Login2.this, "请输入用户名和用户密码", Toast.LENGTH_SHORT).show();
                    }else if(name.getText().toString().equals("")&&!password.getText().toString().equals("")){
                        Toast.makeText(Login2.this, "请输入用户名", Toast.LENGTH_SHORT).show();
                    }else if(!name.getText().toString().equals("")&&password.getText().toString().equals("")){
                        Toast.makeText(Login2.this, "请输入用户密码" , Toast.LENGTH_SHORT).show();
                    }
                }
            }
        });
        Button register = findViewById(R.id.register);
        register.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //Toast.makeText(Login2.this, "注册成功", Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(Login2.this,Register.class);
                startActivity(intent);
            }
        });
    }
}
Register.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.avos.avoscloud.AVException;
import com.avos.avoscloud.AVUser;
import com.avos.avoscloud.SignUpCallback;

public class Register extends AppCompatActivity implements View.OnClickListener{
    private Button register1,cancel;
    private EditText name,email,password,confirmation;
    @Override
    protected void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        getSupportActionBar().hide();
        if(Build.VERSION.SDK_INT >= 21){
            Window window = getWindow();
            window.setStatusBarColor(getResources().getColor(R.color.colorLogin));
        }
        register1 = findViewById(R.id.user_register);
        cancel = findViewById(R.id.cancel);
        name = findViewById(R.id.registername);
        email = findViewById(R.id.registeremail);
        password = findViewById(R.id.registerpassword);
        confirmation = findViewById(R.id.confirmation);
        register1.setOnClickListener(this);
        cancel.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.user_register:
                String str1 = password.getText().toString();
                String str2 = confirmation.getText().toString();
                String str3 = name.getText().toString();
                String str4 = email.getText().toString();
                if(str1.equals("")&&str2.equals("")&&str3.equals("")&&str4.equals("")){
                    Toast.makeText(this, "请输入用户信息", Toast.LENGTH_SHORT).show();
                }else if(str1.equals("")||str2.equals("")||str3.equals("")||str4.equals("")){
                    if(str3.equals("")){
                        Toast.makeText(this, "请输入用户名", Toast.LENGTH_SHORT).show();
                    }
                    else if(str4.equals("")){
                        Toast.makeText(this, "请输入邮箱地址", Toast.LENGTH_SHORT).show();
                    }
                    else if(str1.equals("")){
                        Toast.makeText(this, "请输入密码", Toast.LENGTH_SHORT).show();
                    }
                    else if(str2.equals("")){
                        Toast.makeText(this, "请确认密码", Toast.LENGTH_SHORT).show();
                    }
                }else if (str1.equals(str2)&&!str1.equals("")&&!str3.equals("")&&!str4.equals("")){
                    //Toast.makeText(this, "注册成功", Toast.LENGTH_SHORT).show();
                    AVUser user = new AVUser();
                    user.setUsername(name.getText().toString());
                    user.setEmail(email.getText().toString());
                    user.setPassword(password.getText().toString());
                    user.signUpInBackground(new SignUpCallback() {
                        @Override
                        public void done(AVException e) {
                            if(e==null){
                                startActivity(new Intent(Register.this,Login2.class));
                                finish();
                            }else{
                                Toast.makeText(Register.this, "邮箱规格不符", Toast.LENGTH_SHORT).show();
                            }
                        }
                    });
                }else{
                    Toast.makeText(this, "两次密码输入不一致，请重新输入", Toast.LENGTH_SHORT).show();
                }
                break;
            case R.id.cancel:
                finish();
                break;
        }
    }
}
SplashActivity.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.Window;

public class SplashActivity extends AppCompatActivity {
    private static int SPLASH_DISPLAY_LENGHT = 2000;//延迟时间
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getSupportActionBar().hide();//去掉标题
        setContentView(R.layout.activity_splash);
        if(Build.VERSION.SDK_INT >= 21){
            Window window = getWindow();
            window.setStatusBarColor(getResources().getColor(R.color.colorred));
        }
        new Handler().postDelayed(new Runnable() {//利用线程延时来做处理
            @Override
            public void run() {
                Intent intent = new Intent(SplashActivity.this, Login.class);
                startActivity(intent);
                SplashActivity.this.finish();
            }
        },SPLASH_DISPLAY_LENGHT);
    }
}
Car.java:
package com.example.second_hand_car;

//创建车类

public class Car {
    private String name;
    private int imageId;
    private String nation;

    public Car(String name, int imageId, String nation){
        this.name = name;
        this.imageId = imageId;
        this.nation = nation;
    }

    public String getName(){
        return name;
    }

    public int getImageId(){
        return imageId;
    }

    public String getNation(){
        return nation;
    }
}
Car_Choose.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class Car_Choose extends AppCompatActivity {

    private ImageView picture;

    private List<Car_Information> information = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_car__choose);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }
        initInformations();

        getSupportActionBar().hide();
        Car_Information_Adapter adapter = new Car_Information_Adapter(Car_Choose.this,R.layout.car_information_item,information);
        ListView listView = findViewById(R.id.benchibuju);
        listView.setAdapter(adapter);


    }

    private void initInformations(){
        Car_Information benchiAji = new Car_Information("奔驰A级","21.18-29.98万","紧凑型车",R.drawable.benchi1);
        information.add(benchiAji);
        Car_Information benchiAjiAMG = new Car_Information("奔驰A级AMG","39.98万","紧凑型车",R.drawable.benchi2);
        information.add(benchiAjiAMG);
        Car_Information benchiGLA = new Car_Information("奔驰GLA","27.68-33.28万","紧凑型SUV",R.drawable.benchi3);
        information.add(benchiGLA);
        Car_Information benchiGLB = new Car_Information("奔驰GLB","29.28-34.88万","紧凑型SUV",R.drawable.benchi4);
        information.add(benchiGLB);
        Car_Information benchiCLA = new Car_Information("奔驰CLA","29.79-38.58万","紧凑型车",R.drawable.benchi5);
        information.add(benchiCLA);
        Car_Information benchiGEL = new Car_Information("奔驰GEL","68.55-91.78万","中大型SUV",R.drawable.benchi6);
        information.add(benchiGEL);
        Car_Information benchiG = new Car_Information("奔驰G级","142.98-189.88万","中大型SUV",R.drawable.benchi7);
        information.add(benchiG);
        Car_Information benchiAjiAMGs = new Car_Information("奔驰A级AMG","39.98-57.98万","紧凑型车",R.drawable.benchi8);
        information.add(benchiAjiAMGs);
        Car_Information benchimabahe = new Car_Information("迈巴赫S级","145.88-146.80万","豪华型车",R.drawable.benchi9);
        information.add(benchimabahe);
        Car_Information benchiGAMG = new Car_Information("奔驰G级AMG","222.88-245.88万","中大型SUV",R.drawable.benchi10);
        information.add(benchiGAMG);
    }
}
Car_Information:
package com.example.second_hand_car;

import android.media.Image;

public class Car_Information {
    private int ImageId;
    private String name;
    private String price;
    private String leixing;

    public Car_Information(String name,String price,String leixing,int ImageId){
        this.name = name;
        this.price = price;
        this.leixing = leixing;
        this.ImageId = ImageId;
    }

    public String getName(){
        return name;
    }

    public String getPrice(){
        return price;
    }

    public String getLeixing(){
        return leixing;
    }

    public int getImageId(){
        return ImageId;
    }
}
Car_Information_Adapter.java:
package com.example.second_hand_car;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import java.util.List;

//车类选择适配器

public class Car_Information_Adapter extends ArrayAdapter<Car_Information> {

    private int resourceId;

    public Car_Information_Adapter(Context context, int textViewResourceId, List<Car_Information> objects){
        super(context, textViewResourceId, objects);
        resourceId = textViewResourceId;
    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        Car_Information car = getItem(position);
        //优化ListView的效率
        View view;
        if(convertView == null) {
            view = LayoutInflater.from(getContext()).inflate(resourceId, parent, false);
        }else{
            view = convertView;
        }
        ImageView carImage = view.findViewById(R.id.car_information_picture);
        TextView carName = view.findViewById(R.id.car_information_name);
//        TextView carPrice = view.findViewById(R.id.car_information_picture);
        TextView carleixing = view.findViewById(R.id.car_information_leixing);
        carImage.setImageResource(car.getImageId());
        carName.setText(car.getName());
        //carPrice.setText(car.getPrice());
        carleixing.setText(car.getLeixing());
        return view;
    }

}
CarAdapter.java:
package com.example.second_hand_car;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import java.util.List;

//创建一个车类的适配器

public class CarAdapter extends ArrayAdapter<Car> {
    private int resourceId;

    public CarAdapter(Context context, int textViewResourceId, List<Car> objects){
        super(context, textViewResourceId, objects);
        resourceId = textViewResourceId;
    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        Car car = getItem(position);
        //优化ListView的效率
        View view;
        if(convertView == null) {
            view = LayoutInflater.from(getContext()).inflate(resourceId, parent, false);
        }else{
            view = convertView;
        }
        ImageView carImage = view.findViewById(R.id.car_image);
        TextView carName = view.findViewById(R.id.car_name);
        TextView carNation = view.findViewById(R.id.car_nation);
        carImage.setImageResource(car.getImageId());
        carName.setText(car.getName());
        carNation.setText(car.getNation());
        return view;
    }
}
ViewPagerActivity.java:
package com.example.second_hand_car;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;

import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

public class ViewPagerActivity extends AppCompatActivity implements View.OnClickListener{

    private List<Car> carList = new ArrayList<>();
    private ArrayList<View> list = new ArrayList<View>();
    private ViewPager viewPager;
    private ArrayList<View> pageview;
    private LinearLayout xuanche;
    private LinearLayout zhuye;
    private LinearLayout zixun;
    private int currIndex = 0;

    //下面是车型库界面的类型
    private ImageView find;
    private ImageView benchi;
    private ImageView aodi;
    private ImageView baoma;
    private ImageView dazhong;
    private ImageView bentian;
    private ImageView leikesasi;
    private ImageView fengtian;
    private ImageView bieke;
    private ImageView woerwo;
    private ImageView lanbojini;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_view_pager);

        //设置状态栏为透明
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }

        getSupportActionBar().hide();
        viewPager = findViewById(R.id.viewPager);
        //Intent intent1 = new Intent(this,MainActivity.class);
        LayoutInflater inflater = getLayoutInflater();
        View view1 = inflater.inflate(R.layout.activity_main,null);
        View view2 = inflater.inflate(R.layout.activity_the_main,null);
        View view3 = inflater.inflate(R.layout.activity_the_news,null);
        xuanche = findViewById(R.id.xuanche);
        zhuye = findViewById(R.id.shouye);
        zixun = findViewById(R.id.zixun);
        xuanche.setOnClickListener(this);
        zhuye.setOnClickListener(this);
        zixun.setOnClickListener(this);
        pageview = new ArrayList<View>();
        //添加想要切换的页面
        pageview.add(view1);
        pageview.add(view2);
        pageview.add(view3);

        //数据适配器
        PagerAdapter mPagerAdapter = new PagerAdapter() {

            //获取当前的窗体界面数
            @Override
            public int getCount() {
                return pageview.size();
            }

            //判断是否由对象生成界面
            @Override
            public boolean isViewFromObject(@NonNull View arg0, @NonNull Object arg1) {
                return arg0==arg1;
            }

            //使从ViewGroup中移出当前的View
            public void destroyItem(View arg0,int arg1,Object arg2){
                ((ViewPager)arg0).removeView(pageview.get(arg1));
            }

            //返回一个对象，这个对象表明了PagerAdapter适配器选择哪个对象放在当前的ViewPager中
            public Object instantiateItem(View arg0,int arg1){
                ((ViewPager)arg0).addView(pageview.get(arg1));
                //处理功能实例化
                switch(arg1){
                    case 0:
                        initCars();
                        CarAdapter adapter = new CarAdapter(
                                ViewPagerActivity.this , R.layout.car_item, carList);
                        ListView listView = findViewById(R.id.list_view);
                        listView.setAdapter(adapter);

                        //添加listView的点击功能

                        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                            @Override
                            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                                Car car = carList.get(position);
                                //Toast.makeText(MainActivity.this, car.getName(), Toast.LENGTH_SHORT).show();
                                Intent intent = new Intent(ViewPagerActivity.this,Car_Choose.class);
                                startActivity(intent);
                            }
                        });
                        find = findViewById(R.id.find);
                        benchi = findViewById(R.id.main_benchi);
                        aodi = findViewById(R.id.main_aodi);
                        baoma = findViewById(R.id.main_baoma);
                        dazhong = findViewById(R.id.main_dazhong);
                        bentian = findViewById(R.id.main_bentian);
                        leikesasi = findViewById(R.id.main_leikesasi);
                        fengtian = findViewById(R.id.main_fengtian);
                        bieke = findViewById(R.id.main_bieke);
                        woerwo = findViewById(R.id.main_woerwo);
                        lanbojini = findViewById(R.id.main_lanbojini);
                        find.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,findActivity.class);
                                startActivity(intent);
                            }
                        });
                        benchi.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,Car_Choose.class);
                                startActivity(intent);
                            }
                        });
                        aodi.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,AodiActivity.class);
                                startActivity(intent);
                            }
                        });
                        baoma.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,BaomaActivity.class);
                                startActivity(intent);
                            }
                        });
                        dazhong.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,DazhongActivity.class);
                                startActivity(intent);
                            }
                        });
                        bentian.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,BentianActivity.class);
                                startActivity(intent);
                            }
                        });
                        leikesasi.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,LeikesasiActivity.class);
                                startActivity(intent);
                            }
                        });
                        fengtian.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,FengtianActivity.class);
                                startActivity(intent);
                            }
                        });
                        bieke.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,BiekeActivity.class);
                                startActivity(intent);
                            }
                        });
                        woerwo.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,WoerwoActivity.class);
                                startActivity(intent);
                            }
                        });
                        lanbojini.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent intent = new Intent(ViewPagerActivity.this,LanbojiniActivity.class);
                                startActivity(intent);
                            }
                        });
                        break;
                    default:
                        break;
                }
                return pageview.get(arg1);
            }
        };
        //绑定适配器
        viewPager.setAdapter(mPagerAdapter);
        //设置viewPager的初始化界面为第一界面
        viewPager.setCurrentItem(0);
        //添加切换界面的监听器
        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
    }

    @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.xuanche:
                viewPager.setCurrentItem(0);
                break;
            case R.id.shouye:
                viewPager.setCurrentItem(1);
                break;
            case R.id.zixun:
                viewPager.setCurrentItem(2);
                break;
        }
    }

    //初始化车类型的30组数据

    private void initCars(){
        Car aodi = new Car("奥迪",R.drawable.aodi,"德国");
        carList.add(aodi);
        Car benchi = new Car("奔驰",R.drawable.benchi,"德国");
        carList.add(benchi);
        Car baoma = new Car("宝马",R.drawable.baoma,"德国");
        carList.add(baoma);
        Car leikesasi = new Car("雷克萨斯",R.drawable.leikesasi,"日本");
        carList.add(leikesasi);
        Car dazhong = new Car("大众",R.drawable.dazhong,"德国");
        carList.add(dazhong);
        Car bentian = new Car("本田",R.drawable.bentian,"日本");
        carList.add(bentian);
        Car fengtian = new Car("丰田",R.drawable.fengtian,"日本");
        carList.add(fengtian);
        Car bieke = new Car("别克",R.drawable.bieke,"美国");
        carList.add(bieke);
        Car woerwo = new Car("沃尔沃",R.drawable.woerwo,"瑞典");
        carList.add(woerwo);
        Car lanbojini = new Car("兰博基尼",R.drawable.lanbojini,"意大利");
        carList.add(lanbojini);
        Car asidunmading = new Car("阿斯顿·马丁",R.drawable.asidunmading,"英国");
        carList.add(asidunmading);
        Car baoshijie = new Car("保时捷",R.drawable.baoshijie,"德国");
        carList.add(baoshijie);
        Car binli = new Car("宾利",R.drawable.binli,"宾利");
        carList.add(binli);
        Car bujiadi = new Car("布加迪",R.drawable.bujiadi,"法国");
        carList.add(bujiadi);
        Car biyadi = new Car("比亚迪",R.drawable.biyadi,"比亚迪");
        carList.add(biyadi);
        Car fute = new Car("福特",R.drawable.fute,"美国");
        carList.add(fute);
        Car falali = new Car("法拉利",R.drawable.falali,"意大利");
        carList.add(falali);
        Car hongqi = new Car("红旗",R.drawable.hongqi,"中国");
        carList.add(hongqi);
        Car jiebao = new Car("捷豹",R.drawable.jiebao,"英国");
        carList.add(jiebao);
        Car laosilaisi = new Car("劳斯莱斯",R.drawable.laosilaisi,"英国");
        carList.add(laosilaisi);
        Car luhu = new Car("路虎",R.drawable.luhu,"英国");
        carList.add(luhu);
        Car mazida = new Car("马自达",R.drawable.mazida,"日本");
        carList.add(mazida);
        Car mashaladi = new Car("玛莎拉蒂",R.drawable.mashaladi,"日本");
        carList.add(mashaladi);
        Car maibahe = new Car("迈巴赫",R.drawable.maibahe,"德国");
        carList.add(maibahe);
        Car xuefulan = new Car("雪佛兰",R.drawable.xuefulan,"美国");
        carList.add(xuefulan);
        Car xiandai = new Car("现代",R.drawable.beijingxiandai,"韩国");
        carList.add(xiandai);
        Car leikesasis = new Car("雷克萨斯",R.drawable.leikesasi,"日本");
        carList.add(leikesasis);
        Car aerfaluomiou = new Car("阿尔法·罗密欧",R.drawable.aerfaluomiou,"意大利");
        carList.add(aerfaluomiou);
        Car changcheng = new Car("长城",R.drawable.changcheng,"中国");
        carList.add(changcheng);
        Car hanma = new Car("悍马",R.drawable.hanma,"美国");
        carList.add(hanma);
    }
}
AodiActivity.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class AodiActivity extends AppCompatActivity {

    private ImageView picture;

    private List<Car_Information> information = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_aodi);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }
        initInformations();

        getSupportActionBar().hide();
        Car_Information_Adapter adapter = new Car_Information_Adapter(AodiActivity.this,R.layout.car_information_item,information);
        ListView listView = findViewById(R.id.benchibuju);
        listView.setAdapter(adapter);


    }

    private void initInformations(){
        Car_Information benchiAji = new Car_Information("奥迪A3","20.31-24.97万","紧凑型车",R.drawable.aodi1);
        information.add(benchiAji);
        Car_Information benchiAjiAMG = new Car_Information("奥迪A4L","30.58-39.68万","中型车",R.drawable.aodi2);
        information.add(benchiAjiAMG);
        Car_Information benchiGLA = new Car_Information("奥迪A6L","41.78-66.68万","中大型车",R.drawable.aodi3);
        information.add(benchiGLA);
        Car_Information benchiGLB = new Car_Information("奥迪A6L新能源","50.80万","中大型车",R.drawable.aodi4);
        information.add(benchiGLB);
        Car_Information benchiCLA = new Car_Information("奥迪Q2L","21.77-26.50万","小型SUV",R.drawable.aodi5);
        information.add(benchiCLA);
        Car_Information benchiGEL = new Car_Information("奥迪Q2L e-tron","22.68-23.73万","小型SUV",R.drawable.aodi6);
        information.add(benchiGEL);
        Car_Information benchiG = new Car_Information("奥迪Q3","27.43-36.18万","紧凑型SUV",R.drawable.aodi7);
        information.add(benchiG);
        Car_Information benchiAjiAMGs = new Car_Information("奥迪Q3 Sportback","28.73-36.18万","紧凑型SUV",R.drawable.aodi8);
        information.add(benchiAjiAMGs);
        Car_Information benchimabahe = new Car_Information("奥迪Q5L","38.78-49.80万","中型SUV",R.drawable.aodi9);
        information.add(benchimabahe);
        Car_Information benchiGAMG = new Car_Information("奥迪Q5L Sportback","42.68-49.99万","中型SUV",R.drawable.aodi10);
        information.add(benchiGAMG);
    }
}
BaomaActivity.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class BaomaActivity extends AppCompatActivity {

    private ImageView picture;

    private List<Car_Information> information = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_baoma);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }
        initInformations();

        getSupportActionBar().hide();
        Car_Information_Adapter adapter =new Car_Information_Adapter(BaomaActivity.this,R.layout.car_information_item,information);
        ListView listView = findViewById(R.id.benchibuju);
        listView.setAdapter(adapter);


    }

    private void initInformations(){
        Car_Information benchiAji = new Car_Information("宝马1系","19.98-24.68万","紧凑型车",R.drawable.baoma1);
        information.add(benchiAji);
        Car_Information benchiAjiAMG = new Car_Information("宝马3系","29.39-40.99万","中型车",R.drawable.baoma2);
        information.add(benchiAjiAMG);
        Car_Information benchiGLA = new Car_Information("宝马5系","42.19-54.99万","中大型车",R.drawable.baoma3);
        information.add(benchiGLA);
        Car_Information benchiGLB = new Car_Information("宝马5系新能源","49.99-53.69万","中大型车",R.drawable.baoma4);
        information.add(benchiGLB);
        Car_Information benchiCLA = new Car_Information("宝马X1","21.77-26.50万","紧凑型SUV",R.drawable.baoma5);
        information.add(benchiCLA);
        Car_Information benchiGEL = new Car_Information("宝马X2","22.68-23.73万","紧凑型SUV",R.drawable.baoma6);
        information.add(benchiGEL);
        Car_Information benchiG = new Car_Information("宝马X1新能源","39.98万","紧凑型SUV",R.drawable.baoma7);
        information.add(benchiG);
        Car_Information benchiAjiAMGs = new Car_Information("宝马X3","38.98-47.98万","中型SUV",R.drawable.baoma8);
        information.add(benchiAjiAMGs);
        Car_Information benchimabahe = new Car_Information("宝马iX3","39.99-43.99万","中型SUV",R.drawable.baoma9);
        information.add(benchimabahe);
        Car_Information benchiGAMG = new Car_Information("宝马X5新能源","85.99万","中大型SUV",R.drawable.baoma10);
        information.add(benchiGAMG);
    }
}
BentianActivity.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class BaomaActivity extends AppCompatActivity {

    private ImageView picture;

    private List<Car_Information> information = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_baoma);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }
        initInformations();

        getSupportActionBar().hide();
        Car_Information_Adapter adapter =new Car_Information_Adapter(BaomaActivity.this,R.layout.car_information_item,information);
        ListView listView = findViewById(R.id.benchibuju);
        listView.setAdapter(adapter);


    }

    private void initInformations(){
        Car_Information benchiAji = new Car_Information("宝马1系","19.98-24.68万","紧凑型车",R.drawable.baoma1);
        information.add(benchiAji);
        Car_Information benchiAjiAMG = new Car_Information("宝马3系","29.39-40.99万","中型车",R.drawable.baoma2);
        information.add(benchiAjiAMG);
        Car_Information benchiGLA = new Car_Information("宝马5系","42.19-54.99万","中大型车",R.drawable.baoma3);
        information.add(benchiGLA);
        Car_Information benchiGLB = new Car_Information("宝马5系新能源","49.99-53.69万","中大型车",R.drawable.baoma4);
        information.add(benchiGLB);
        Car_Information benchiCLA = new Car_Information("宝马X1","21.77-26.50万","紧凑型SUV",R.drawable.baoma5);
        information.add(benchiCLA);
        Car_Information benchiGEL = new Car_Information("宝马X2","22.68-23.73万","紧凑型SUV",R.drawable.baoma6);
        information.add(benchiGEL);
        Car_Information benchiG = new Car_Information("宝马X1新能源","39.98万","紧凑型SUV",R.drawable.baoma7);
        information.add(benchiG);
        Car_Information benchiAjiAMGs = new Car_Information("宝马X3","38.98-47.98万","中型SUV",R.drawable.baoma8);
        information.add(benchiAjiAMGs);
        Car_Information benchimabahe = new Car_Information("宝马iX3","39.99-43.99万","中型SUV",R.drawable.baoma9);
        information.add(benchimabahe);
        Car_Information benchiGAMG = new Car_Information("宝马X5新能源","85.99万","中大型SUV",R.drawable.baoma10);
        information.add(benchiGAMG);
    }
}
BentianActivity.java:
package com.example.second_hand_car;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class BentianActivity extends AppCompatActivity {

    private ImageView picture;

    private List<Car_Information> information = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bentian);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(Color.TRANSPARENT);
            window.setNavigationBarColor(Color.TRANSPARENT);
        }
        initInformations();

        getSupportActionBar().hide();
        Car_Information_Adapter adapter = new Car_Information_Adapter(BentianActivity.this,R.layout.car_information_item,information);
        ListView listView = findViewById(R.id.benchibuju);
        listView.setAdapter(adapter);


    }

    private void initInformations(){
        Car_Information benchiAji = new Car_Information("思域","11.99-16.99万","紧凑型车",R.drawable.bentian1);
        information.add(benchiAji);
        Car_Information benchiAjiAMG = new Car_Information("雅阁","17.98-25.98万","中型车",R.drawable.bentian2);
        information.add(benchiAjiAMG);
        Car_Information benchiGLA = new Car_Information("本田CR-V","16.98-27.68万","紧凑型SUV",R.drawable.bentian3);
        information.add(benchiGLA);
        Car_Information benchiGLB = new Car_Information("本田XR-V","12.79-17.59万","小型SUV",R.drawable.bentian4);
        information.add(benchiGLB);
        Car_Information benchiCLA = new Car_Information("皓影","16.98-25.28万","紧凑型车",R.drawable.bentian5);
        information.add(benchiCLA);
        Car_Information benchiGEL = new Car_Information("飞度","8.18-10.88万","小型车",R.drawable.bentian6);
        information.add(benchiGEL);
        Car_Information benchiG = new Car_Information("缤智","12.78-17.68万","小型SUV",R.drawable.bentian7);
        information.add(benchiG);
        Car_Information benchiAjiAMGs = new Car_Information("奥德赛","22.98-37.68万","MPV",R.drawable.bentian8);
        information.add(benchiAjiAMGs);
        Car_Information benchimabahe = new Car_Information("冠道","22.00-33.28万","中型SUV",R.drawable.bentian9);
        information.add(benchimabahe);
        Car_Information benchiGAMG = new Car_Information("INSPIRE","18.28-24.98万","中型车",R.drawable.bentian10);
        information.add(benchiGAMG);
    }
}

每个类型的Activity结构都差不多，这里只给出几个大概的结构和数据，其他的类型如果想继续做的话，可以根据以上Activity的结构进行修改添加数据

MyLeanCloudApp.java:
package com.example.second_hand_car;

import android.app.Application;

import com.avos.avoscloud.AVOSCloud;

public class MyLeanCloudApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        AVOSCloud.initialize(this,"AppId","Key");//具体数据从leancloud中导入
    }
}

布局文件我就不再博客里写了，以后写好项目之后，我会贴出github的地址，以供参考。

目前的功能还不完善，以后我会继续更新博客的。

五、查阅资料及报错时解决方法

原文链接:https://blog.csdn.net/weixin_44900700/article/details/117665590

2022年最受欢迎的8大编程语言

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程序员被开除，老板：“有你参与的项目全黄了！”

笑话：一个测试工程师走进一家酒吧

趣图：程序员头疼的4种原因

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网友说：做开发，不被领导喜欢怎么办？

网友说：我奉劝各位，一定不能在职场透露自己的家庭条件



所属网站分类: 技术文章 > 博客

作者：我睡觉爱打呼噜

链接：http://www.javaheidong.com/blog/article/222518/f39400f0344bb650fff8/

来源：java黑洞网

任何形式的转载都请注明出处,如有侵权 一经发现 必将追究其法律责任

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