Android北京地铁查询app-代码部分-526互联

这次结对作业完成的Android北京地铁查询app的代码，放在这里，

也可以到我github上下载：https://github.com/BXF-Aurora168

页面和功能介绍：https://www.cnblogs.com/rsy-bxf150/p/17265840.html

部分代码：

activity

package com.example.dataapplication;

import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.PagerAdapter;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import com.example.dataapplication.OtherActivity.DynamicFragmentActivity;
import com.example.dataapplication.OtherActivity.ViewPagerActivity1;

public class MainActivity extends AppCompatActivity{


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

    }

    public void onck2(View view) {
        Intent intent = new Intent(this, PagerActivity.class);
        startActivity(intent);
    }


}

package com.example.dataapplication;

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

import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;

import com.example.dataapplication.OtherActivity.DynamicFragmentActivity;
import com.example.dataapplication.adapter.MyFragStateAdapter;
import com.example.dataapplication.fragment.BlankFragment2;
import com.example.dataapplication.fragment.frag1.SearchFragment;
import com.example.dataapplication.fragment.frag2.LeftListFragment;
import com.example.dataapplication.fragment.frag3.MapFragment;
import com.google.android.material.badge.BadgeDrawable;
import com.google.android.material.bottomnavigation.BottomNavigationView;

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

public class PagerActivity extends AppCompatActivity {

    private ViewPager mViewPager;
    private BottomNavigationView mBottomNavigationView;
    private MyFragStateAdapter FragStateAdapter;
    private List<Fragment> mFragmentList;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_pager);

        mViewPager = findViewById(R.id.vp2);
        mBottomNavigationView = findViewById(R.id.bottom_menu);
        
        initData();
        FragStateAdapter = new MyFragStateAdapter(getSupportFragmentManager(),mFragmentList);
        mViewPager.setAdapter(FragStateAdapter);

       mBottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem item) {

                switch (item.getItemId()){
                    case R.id.menu_1:
                        mViewPager.setCurrentItem(0);
                        break;
                    case R.id.menu_2:
                        mViewPager.setCurrentItem(1);
                        break;
                    case R.id.menu_3:
                        mViewPager.setCurrentItem(2);
                        break;
                    default:
                        break;
                }
                return true;
            }
        });

       mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
           @Override
           public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

           }

           @Override
           public void onPageSelected(int position) {
               switch (position){
                   case 0:
                       mBottomNavigationView.setSelectedItemId(R.id.menu_1);
                       break;
                   case 1:
                       mBottomNavigationView.setSelectedItemId(R.id.menu_2);
                       break;
                   case 2:
                       mBottomNavigationView.removeBadge(R.id.menu_3);
                       mBottomNavigationView.setSelectedItemId(R.id.menu_3);
                       break;
                   default:
                       break;
               }
           }

           @Override
           public void onPageScrollStateChanged(int state) {

           }
       });


    }

    private void initData() {
        mFragmentList = new ArrayList<>();

        SearchFragment fragment1 = SearchFragment.newInstance("","");
        LeftListFragment fragment2 = LeftListFragment.newInstance("","");
        MapFragment fragment3 = MapFragment.newInstance("","");

        mFragmentList.add(fragment1);
        mFragmentList.add(fragment2);
        mFragmentList.add(fragment3);
    }
}

fragment

package com.example.dataapplication.fragment.frag1;
import android.nfc.Tag;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;

import com.example.dataapplication.DataBase.CRUD;
import com.example.dataapplication.Infomation.SubwayBean;
import com.example.dataapplication.MenuActivity;
import com.example.dataapplication.R;
import com.example.dataapplication.adapter.ListViewAdapter;

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

public class SearchFragment extends Fragment {
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";
    private String mParam1,mParam2;
    private EditText mEt_start,mEt_end;
    private ImageButton mBtn_search;
    private RecyclerView mList;
    private List<SubwayBean> mData;
    private String start,end;

    public SearchFragment() {

    }
    public static SearchFragment newInstance(String param1, String param2) {
        SearchFragment fragment = new SearchFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        return inflater.inflate(R.layout.fragment_search, container, false);
    }
    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        mEt_start  = view.findViewById(R.id.frag_et_start);
        mEt_end    = view.findViewById(R.id.frag_et_end);
        mBtn_search= view.findViewById(R.id.frag_btn_find);

        mList = view.findViewById(R.id.frag_recycle_show);



        mBtn_search.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                start=mEt_start.getText().toString();
                end=mEt_end.getText().toString();
                CRUD crud = new CRUD(getContext());
                if (crud.ArrayTransferStation(start,end)==null){
                    Toast.makeText(getContext(), "输入为空或查不到此数据", Toast.LENGTH_SHORT).show();
                }else {
                    initData();
                }

            }
        });



    }

    private void initData() {

            mData = new ArrayList<SubwayBean>();
            CRUD crud = new CRUD(getContext());
            //导入数据
            ArrayList<SubwayBean> subList = crud.ArrayTransferStation(start,end);

            for (int i = 0; i < subList.size(); i++) {

                SubwayBean subway = new SubwayBean();
                SubwayBean subData =subList.get(i);
                subway._StartStation = subData._StartStation;
                subway._EndStation = subData._EndStation;
                subway._Number = subData._Number;
                subway._Path = subData._Path;
                mData.add(subway);
            }
            //设置布局管理器
            LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
            mList.setLayoutManager(linearLayoutManager);
            //创建适配器
            ListViewAdapter adapter = new ListViewAdapter(mData);
            //设置到listview里
            mList.setAdapter(adapter);
    }

}

package com.example.dataapplication.fragment.frag2;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.example.dataapplication.DataBase.CRUD;
import com.example.dataapplication.R;
import com.example.dataapplication.adapter.LeftListAdapter;

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

public class LeftListFragment extends Fragment {
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";
    private String mParam1;
    private String mParam2;
    private RecyclerView mList,mList2;
    private List<String> mData,mData2;

    private LeftListAdapter mAdapter,mAdapter2;
    public LeftListFragment() {

    }
    public static LeftListFragment newInstance(String param1, String param2) {
        LeftListFragment fragment = new LeftListFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_left_list, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mList = view.findViewById(R.id.frag_recycle_left);
        mList2 = view.findViewById(R.id.frag_recycle_right);
        initData1();

    }


    private void initData2(int position) {
        mData2 = new ArrayList<String>();
        CRUD crud = new CRUD(getContext());
        //导入数据
        ArrayList<String> subList = crud.PositionStation(position);

        for (int i = 0; i < subList.size(); i++) {

            String stationData = subList.get(i);
            mData2.add(stationData);
        }
        //设置布局管理器
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
        mList2.setLayoutManager(linearLayoutManager);
        //创建适配器
        mAdapter2 = new LeftListAdapter(mData2);
        //设置到listview里
        mList2.setAdapter(mAdapter2);
    }

    private void initData1() {
        mData = new ArrayList<String>();
        CRUD crud = new CRUD(getContext());
        //导入数据
        ArrayList<String> subList = crud.getArrayLine();

        for (int i = 0; i < subList.size(); i++) {

            String stationData = subList.get(i);
            mData.add(stationData);
        }
        //设置布局管理器
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
        mList.setLayoutManager(linearLayoutManager);
        //创建适配器
        mAdapter = new LeftListAdapter(mData);
        //设置到listview里
        mList.setAdapter(mAdapter);

        mAdapter.setOnItemClick1(new LeftListAdapter.OnItemClickListener1() {
            @Override
            public void OnItemClick1(int position) {
                initData2(position);
            }
        });

    }
}

package com.example.dataapplication.fragment.frag3;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.StaggeredGridLayoutManager;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

import com.example.dataapplication.DataBase.CRUD;
import com.example.dataapplication.R;
public class MapFragment extends Fragment {
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";
    private String mParam1;
    private String mParam2;

    private EditText mEt1;
    private ImageButton mBtn1;
    private TextView mTv1;
    public MapFragment() {
    }
    public static MapFragment newInstance(String param1, String param2) {
        MapFragment fragment = new MapFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_map, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        mEt1  = view.findViewById(R.id.map_et_1);
        mBtn1    = view.findViewById(R.id.map_btn_1);
        mTv1= view.findViewById(R.id.map_tv_1);

        mBtn1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String text1=mEt1.getText().toString();
                CRUD crud = new CRUD(getContext());
                String text2 = crud.getLine(text1);
                if (text2 != null) {
                    mTv1.setText(text1+" 位于 "+text2);
                }else {
                    Toast.makeText(getContext(), "输入为空或查不到此数据", Toast.LENGTH_SHORT).show();
                }

            }
        });

    }
}

crud数据库方法

package com.example.dataapplication.DataBase;

import android.annotation.SuppressLint;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

import com.example.dataapplication.Infomation.SubwayBean;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

public class CRUD {
    private DBHelper dbHelper;

    public CRUD (Context context){dbHelper = new DBHelper(context);}

    @SuppressLint("Range")
    public ArrayList<SubwayBean> ArrayTransferStation(String station1, String station2){

        SQLiteDatabase db = dbHelper.getReadableDatabase();
        ArrayList<SubwayBean> resultArray = new ArrayList<>();
        int i=0;
        String sql =
                    "WITH RECURSIVE transfer(start_station, stop_station, stops, paths) AS (\n" +
                    "SELECT station_name, next_station, 1 stops, \n" +
                    "       line_name||station_name||'->'||line_name||next_station AS paths\n" +
                    "FROM bj_subway\n" +
                    "WHERE station_name = ?\n" +
                    "UNION ALL \n" +
                    "SELECT t.start_station, s.next_station, stops+1, paths||'->'||s.line_name||s.next_station\n" +
                    "FROM transfer t\n" +
                    "JOIN bj_subway s \n" +
                    "ON (t.stop_station = s.station_name AND instr(paths, s.next_station)=0)\n" +
                    ")\n" +
                    "SELECT *\n" +
                    "FROM transfer\n" +
                    "WHERE stop_station = ?;";

        Cursor cursor = db.rawQuery(sql,new String[]{station1,station2});

        if (cursor.moveToFirst()){
            do {
                i++;
                SubwayBean subwayBean = new SubwayBean();
                subwayBean._StartStation = cursor.getString(cursor.getColumnIndex("start_station"));
                subwayBean._EndStation = cursor.getString(cursor.getColumnIndex("stop_station"));
                subwayBean._Number = cursor.getString(cursor.getColumnIndex("stops"));
                subwayBean._Path = cursor.getString(cursor.getColumnIndex("paths"));
                resultArray.add(subwayBean);
            }while (cursor.moveToNext());
        }
        if(i==0)
        {
            return null;
        }
        cursor.close();
        db.close();
        return resultArray;
    }

    @SuppressLint("Range")
    public ArrayList<String> PositionStation(int position){

        SQLiteDatabase db = dbHelper.getReadableDatabase();
        ArrayList<String> ArrayOnly = new ArrayList<>();
        int number = 1;
        switch (position){
            case 0:number = 1;
            break;
            case 1:number = 2;
                break;
            case 2:number = 8;
                break;
            case 3:number = 4;
                break;
            case 4:number = 5;
                break;
            case 5:number = 6;
                break;
            case 6:number = 7;
                break;
            case 7:number = 9;
                break;
            case 8:number = 11;
                break;
            case 9:number = 10;
                break;
        }
        String the_line = number+"号"+"线";
        String sql = "Select * From bj_subway2 Where line_name=?";
        Cursor cursor = db.rawQuery(sql,new String[]{the_line});
        int i=0;
        if (cursor.moveToFirst()){
            do {
                    i++;
                    String a = cursor.getString(cursor.getColumnIndex("station_name"));
                    ArrayOnly.add(a);
            }while (cursor.moveToNext());
        }

        if(i==0)
        {
            return null;
        }
        cursor.close();
        db.close();
        return ArrayOnly;
    }
    @SuppressLint("Range")
    public ArrayList<String> getArrayLine(){
        SQLiteDatabase db = dbHelper.getReadableDatabase();
        ArrayList<String> ArrayLine = new ArrayList<>();
        String sql ="Select * From bj_subway2 Where station_id In (Select Max(station_id) From bj_subway2 Group By line_name)";
        Cursor cursor = db.rawQuery(sql,null);
        int i=0;
        if (cursor.moveToFirst()){
            do {
                i++;
                String a = cursor.getString(cursor.getColumnIndex("line_name"));
                ArrayLine.add(a);
            }while (cursor.moveToNext());
        }
        if(i==0)
        {
            return null;
        }
        cursor.close();
        db.close();
        return ArrayLine;
    }
    @SuppressLint("Range")
    public String getLine(String station){

        SQLiteDatabase db = dbHelper.getReadableDatabase();
        String Line = null;
        String sql = "Select * From bj_subway2 Where station_name=?";
        Cursor cursor = db.rawQuery(sql,new String[]{station});
        int i=0;
        if (cursor.moveToFirst()){
                i++;
                Line = cursor.getString(cursor.getColumnIndex("line_name"));
        }
        if(i==0)
        {
            return null;
        }
        cursor.close();
        db.close();
        return Line;

    }
}

dbHelper

package com.example.dataapplication.DataBase;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class DBHelper extends SQLiteOpenHelper {
    private static final int DATABASE_VERSION=2;

    private static final String DATABASE_NAME="crud.db";

    public DBHelper(Context context) {
        super(context,DATABASE_NAME,null,DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {


    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {


    }
}

adapter

package com.example.dataapplication.adapter;

import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.example.dataapplication.Infomation.SubwayBean;
import com.example.dataapplication.R;

import java.util.List;

public class ListViewAdapter extends RecyclerView.Adapter<ListViewAdapter.InnerHolder> {


    private final List<SubwayBean> mData;

    public ListViewAdapter(List<SubwayBean> data){this.mData = data;}

    //创建View
    @NonNull
    @Override
    public InnerHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

        View view =View.inflate(parent.getContext(), R.layout.item_list_view,null);

        return new InnerHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull InnerHolder holder, int position) {

        holder.setData(mData.get(position));

    }

    @Override
    public int getItemCount() {
        if (mData != null) {
            return mData.size();
        }
        return 0;
    }


    public class InnerHolder extends RecyclerView.ViewHolder{

        private TextView m1,m2,m3,m4;
        public InnerHolder(@NonNull View itemView) {
            super(itemView);

            m1 = itemView.findViewById(R.id.list_1);
            m2 = itemView.findViewById(R.id.list_2);
            m3  = itemView.findViewById(R.id.list_3);
            m4 = itemView.findViewById(R.id.list_4);
        }

        public void setData(SubwayBean subwayBean) {

            m1.setText(subwayBean._StartStation);
            m2.setText(subwayBean._EndStation);
            m3.setText("经过站数："+(CharSequence) subwayBean._Number);
            m4.setText(subwayBean._Path);
        }
    }

}

package com.example.dataapplication.adapter;

import android.view.View;
import android.view.ViewGroup;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.example.dataapplication.Infomation.SubwayBean;
import com.example.dataapplication.R;

import java.util.List;

public class LeftListAdapter extends RecyclerView.Adapter<LeftListAdapter.InnerHolder> {
    private final List<String> mData;
    private OnItemClickListener1 mOnItemClickListener1;

    public LeftListAdapter(List<String> data){this.mData = data;}

    public void  setOnItemClick1(LeftListAdapter.OnItemClickListener1 listener1){
        this.mOnItemClickListener1 = listener1;
    }
    public interface OnItemClickListener1{
        void OnItemClick1(int position);
    }
    //创建View
    @NonNull
    @Override
    public InnerHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

        View view =View.inflate(parent.getContext(), R.layout.item_list_left,null);

        return new InnerHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull InnerHolder holder, int position) {

        holder.setData(mData.get(position),position);

    }

    @Override
    public int getItemCount() {
        if (mData != null) {
            return mData.size();
        }
        return 0;
    }


    public class InnerHolder extends RecyclerView.ViewHolder{

        private TextView m1;
        private int mPosition;

        public InnerHolder(@NonNull View itemView) {
            super(itemView);

            m1 = itemView.findViewById(R.id.item_left_station);

            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    if (mOnItemClickListener1 != null) {
                        mOnItemClickListener1.OnItemClick1(mPosition);
                    }
                }
            });
        }

        public void setData(String station,int position) {

            this.mPosition = position;
            m1.setText(station);

        }
    }
}

package com.example.dataapplication.adapter;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentStatePagerAdapter;

import java.util.List;

public class MyFragStateAdapter extends FragmentStatePagerAdapter {

    private List<Fragment> mFragmentList;

    public MyFragStateAdapter(@NonNull FragmentManager fm,List<Fragment> fragmentList) {
        super(fm);
        this.mFragmentList =fragmentList;

    }

    @NonNull
    @Override
    public Fragment getItem(int position) {
        return mFragmentList == null ? null : mFragmentList.get(position);
    }

    @Override
    public int getCount() {
        return mFragmentList == null ? 0 : mFragmentList.size();
    }
}

xml

activity_pager

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".PagerActivity"
    android:orientation="vertical">

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/vp2"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        />
    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/bottom_menu"
        app:menu="@menu/bottom_nav_menu"
        app:labelVisibilityMode="labeled"
        />
</LinearLayout>

fragment_search

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="0dp"
    android:background="@drawable/bg_bg1"
    tools:context=".fragment.frag1.SearchFragment">


    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="      路  线  查  询"
        android:layout_marginTop="10dp"
        android:layout_marginLeft="80dp"
        android:layout_marginRight="160dp"
        android:textSize="21dp"/>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="45dp"
        android:hint="    起始站"
        android:textSize="20dp"
        android:background="@drawable/bg_edit"
        android:id="@+id/frag_et_start"
        android:layout_marginTop="45sp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="100dp"
        />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="45dp"
        android:hint="    终点站"
        android:background="@drawable/bg_edit"
        android:textSize="20sp"
        android:id="@+id/frag_et_end"
        android:layout_marginTop="100dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="100dp"
        />
    <ImageButton
        android:id="@+id/frag_btn_find"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:layout_marginTop="70dp"
        android:layout_marginLeft="330dp"
        android:background="@mipmap/button_find"
        />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:layout_marginTop="165dp"
        android:background="@color/gray"
        />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/frag_recycle_show"
        android:layout_width="match_parent"
        android:layout_height="453dp"
        android:layout_marginTop="170dp" />


</FrameLayout>

fragment_left_list

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    tools:context=".fragment.frag2.LeftListFragment">

    <!-- TODO: Update blank fragment layout -->
    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/frag_recycle_left"
        android:layout_width="105dp"
        android:layout_height="628dp"
        android:layout_margin="1dp"
        android:background="@drawable/bg_bg2"
        android:padding="3dp" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/frag_recycle_right"
        android:layout_width="308dp"
        android:layout_height="628dp"
        android:layout_marginLeft="105dp"
        android:layout_marginTop="1dp"
        android:layout_marginRight="1dp"
        android:background="@drawable/bg_bg3"
        android:padding="3dp" />


</FrameLayout>

fragment_map

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg_bg1"
    tools:context=".fragment.frag3.MapFragment">

    <!-- TODO: Update blank fragment layout -->
    <EditText
        android:id="@+id/map_et_1"
        android:layout_width="match_parent"
        android:layout_height="45dp"
        android:hint="  输入站点"
        android:textSize="20dp"
        android:background="@drawable/bg_edit"
        android:layout_marginTop="67dp"
        android:layout_marginLeft="40dp"
        android:layout_marginRight="100dp"
        android:padding="1dp"
        />
    <ImageButton
        android:id="@+id/map_btn_1"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:layout_marginTop="70dp"
        android:layout_marginLeft="330dp"
        android:background="@mipmap/button_find"
        />
    <View
        android:layout_width="match_parent"
        android:layout_height="2dp"
        android:background="@color/gray"
        android:layout_marginTop="150dp"
        />

    <TextView
        android:id="@+id/map_tv_1"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:layout_marginLeft="0dp"
        android:layout_marginTop="160dp"
        android:layout_marginRight="0dp"
        android:paddingLeft="40dp"
        android:background="@drawable/bg_bg3"
        android:text=" "
        android:textSize="30dp" />

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="395dp"
        android:layout_marginTop="215dp"
        android:src="@mipmap/pic_dite" />

</FrameLayout>

item_bottom

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:background="@color/teal_700"
        >

        <LinearLayout
            android:id="@+id/menu_ll_1"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical"
            android:gravity="center_horizontal">

            <ImageView
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:id="@+id/menu_iv_1"
                android:src="@drawable/selector_search"/>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/menu_tv_1"
                android:textSize="20sp"
                android:text="查询"/>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/menu_ll_2"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical"
            android:gravity="center_horizontal">

            <ImageView
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:id="@+id/menu_iv_2"
                android:src="@drawable/selector_subway"/>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/menu_tv_2"
                android:textSize="20sp"
                android:text="站点"/>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/menu_ll_3"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical"
            android:gravity="center_horizontal">

            <ImageView
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:id="@+id/menu_iv_3"
                android:src="@drawable/selector_map"/>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/menu_tv_3"
                android:textSize="20sp"
                android:text="地图"/>
        </LinearLayout>

</LinearLayout>

item_left_list

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="站点名"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        android:textSize="20sp"
        android:id="@+id/item_left_station"
        android:layout_marginTop="2dp"
        />
    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/gray"
        android:layout_marginTop="2dp"
        />
</LinearLayout>

item_list_view

<?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"
    android:orientation="vertical"
    android:background="@drawable/bg_bg3"
    android:padding="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginLeft="5dp"
    android:layout_marginRight="5dp"
    android:layout_marginBottom="5dp">

    <TextView
        android:id="@+id/list_1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="起始站"
        android:textSize="18dp"
        android:textColor="@color/black"
        android:layout_marginTop="5dp" />
    <TextView
        android:id="@+id/list_mid"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="---"
        android:textSize="18dp"
        android:layout_toRightOf="@+id/list_1"
        android:textColor="@color/black"
        android:layout_marginTop="5dp"
        android:layout_marginLeft="15dp"
        android:layout_marginRight="15dp"
        />
    <TextView
        android:id="@+id/list_2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:layout_toRightOf="@+id/list_mid"
        android:text="终点站"
        android:textSize="18dp"
        android:textColor="@color/black" />
    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/gray"
        android:layout_below="@id/list_1"
        android:layout_marginTop="2dp"/>
    <TextView
        android:id="@+id/list_3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18dp"
        android:layout_toRightOf="@id/list_2"
        android:layout_marginTop="5dp"
        android:text="经过站数"
        android:layout_marginLeft="20dp"
        android:textColor="@color/black" />
    <TextView
        android:id="@+id/list_4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/list_3"
        android:textSize="18dp"
        android:layout_marginTop="5dp"
        android:layout_marginBottom="5dp"
        android:text="路线"
        android:textColor="@color/black" />


</RelativeLayout>

bottom_nav_menu

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:id="@+id/menu_1"
        android:icon="@drawable/selector_search"
        android:title="查询"

        />
    <item android:id="@+id/menu_2"
        android:icon="@drawable/selector_subway"
        android:title="站点"

        />
    <item android:id="@+id/menu_3"
        android:icon="@drawable/selector_map"
        android:title="地图"

        />
</menu>