第一阶段冲刺三

一、主界面

1.样图

 

2.代码

登录Activity

package com.example.hotel;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;


import com.example.hotel.Activity.Manager.ManagerActivity;
import com.example.hotel.Activity.RegisterActivity;
import com.example.hotel.Activity.NopwdActivity;
import com.example.hotel.Activity.User.UserActivity;
import com.example.hotel.Database.DBOpenHelper;
import com.example.hotel.Database.MysqlUser;

import java.sql.SQLException;

public class MainActivity extends AppCompatActivity {
    private TextView TextViewNoPassword;
    private TextView TextViewRegister;
    private TextView TextViewAppName;
    private Button ButtonLogin;
    private TextView EditTextLoginId;
    private TextView EditTextLoginPassword;
    private DBOpenHelper dbOpenHelper;
    private static String correctpwd;
    private static String power;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextViewAppName=(TextView) findViewById(R.id.textViewAppName);
        TextViewAppName.setTypeface(Typeface.createFromAsset(MainActivity.this.getAssets(), "font/XingKai.TTF"));
//        dbOpenHelper=new DBOpenHelper(MainActivity.this,"mydb",null,1);
        //忘记密码
        TextViewNoPassword=(TextView)findViewById(R.id.textViewNoPassword);
        TextViewNoPassword.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=new Intent(MainActivity.this, NopwdActivity.class);
                startActivity(intent);
            }
        });
        //注册用户
        TextViewRegister=(TextView) findViewById(R.id.textViewRegister);
        TextViewRegister.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=new Intent(MainActivity.this, RegisterActivity.class);
                startActivity(intent);
            }
        });
        //登录
        ButtonLogin=(Button) findViewById(R.id.buttonLogin);
        EditTextLoginId=(TextView)findViewById(R.id.editTextLoginId);
        EditTextLoginPassword=(TextView)findViewById(R.id.editTextLoginPassword);
        EditTextLoginId.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        MysqlUser mysqlUser=new MysqlUser();
                        try {
                            String sql="select password from userinfo where id='"+EditTextLoginId.getText().toString()+"'";
                            correctpwd=mysqlUser.select(sql);
                            String sql2="select power from userinfo where id='"+EditTextLoginId.getText().toString()+"'";
                            power=mysqlUser.select(sql2);
                        } catch (SQLException e) {
                            e.printStackTrace();
                        }
                    }
                }).start();
            }
        });
        ButtonLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                login();
//                SQLiteDatabase db=dbOpenHelper.getReadableDatabase();
//                String Id=EditTextLoginId.getText().toString();
//                String pwd=EditTextLoginPassword.getText().toString();
//                Cursor cursor = db.rawQuery("select * from user",null);
//                while (cursor.moveToNext()) {
//                    String searchName = cursor.getString(cursor.getColumnIndex("id"));
//                    String searchAge = cursor.getString(cursor.getColumnIndex("password"));
//                    if(searchName.equals(Id)&&searchAge.equals(pwd)){
//                        Intent intent=new Intent(MainActivity.this, RegisterActivity.class);
//                        startActivity(intent);
//                        break;
//                    }
//                }
            }
        });
//        SharedPreferences sp=getSharedPreferences("hotel", Context.MODE_PRIVATE);
//        String id=sp.getString("id",null);
//        EditTextLoginId.setText(id);
    }
    private void login(){
        String id=EditTextLoginId.getText().toString();
        String pwd=EditTextLoginPassword.getText().toString();
        Spinner spinner=(Spinner)findViewById(R.id.Spinner);
        String ch=spinner.getSelectedItem().toString();
//        SharedPreferences sp=this.getSharedPreferences("hotel",Context.MODE_PRIVATE);
//        String password=sp.getString("pwd",null);
        if(ch.equals("用户")){
            if(pwd==null){
//                Toast.makeText(this,"请输入密码",Toast.LENGTH_SHORT).show();
            }
            else {
                if(power.equals("0")){
                    if(!pwd.equals(correctpwd)){
//                        Toast.makeText(this,"密码不正确",Toast.LENGTH_SHORT).show();
                    }
                    if(pwd.equals(correctpwd)&&power.equals("0")){
                        this.finish();
                        Intent intent= new Intent(MainActivity.this, UserActivity.class);
                        Bundle bundle=new Bundle();
                        bundle.putString("nowid",id);
                        intent.putExtras(bundle);
                        startActivity(intent);
                    }
                }
                else  Toast.makeText(this,"您不能以用户登录",Toast.LENGTH_SHORT).show();
            }
        }
        if(ch.equals("管理员")){
            if(pwd==null){
//                Toast.makeText(this,"请输入密码",Toast.LENGTH_SHORT).show();
            }
            else {
                if(power.equals("1")){
                    if(!pwd.equals(correctpwd)&&power.equals("1")){
//                        Toast.makeText(this,"密码不正确",Toast.LENGTH_SHORT).show();
                    }
                    if(pwd.equals(correctpwd)){
                        this.finish();
                        Intent intent= new Intent(MainActivity.this, ManagerActivity.class);
                        startActivity(intent);
                    }
                }
                else Toast.makeText(this,"您不能以管理员登录",Toast.LENGTH_SHORT).show();
            }
        }
    }
}

登录布局

<?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=".MainActivity"
    android:orientation="vertical"
    android:background="@drawable/login">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:orientation="vertical">

        <TextView
            android:id="@+id/textViewAppName"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_marginTop="50dp"
            android:textColor="#F44336"
            android:textStyle="bold"
            android:textSize="60sp"
            android:typeface="serif"
            android:text="入住通" />

        <TextView
            android:id="@+id/textViewLoginId"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="50dp"
            android:layout_marginLeft="10dp"
            android:text="用户id" />

        <EditText
            android:id="@+id/editTextLoginId"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:background="@drawable/corners"
            android:ems="10"
            android:inputType="textPersonName"
            android:text="" />

        <TextView
            android:id="@+id/textViewLoginPassword"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="20dp"
            android:text="密码" />

        <EditText
            android:id="@+id/editTextLoginPassword"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:background="@drawable/corners"
            android:ems="10"
            android:inputType="textPassword" />

        <Spinner
            android:id="@+id/Spinner"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="40dp"
            android:entries="@array/ctype"
            android:layout_gravity="center_horizontal"/>

        <Button
            android:id="@+id/buttonLogin"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="40dp"
            android:background="@drawable/btnpress"
            android:text="登录" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="20dp"
        android:layout_marginRight="5dp"
        android:orientation="horizontal">


        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="" />
        <TextView
            android:id="@+id/textViewNoPassword"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#2196f3"
            android:layout_marginRight="10dp"
            android:text="忘记密码" />

        <TextView
            android:id="@+id/textViewRegister"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#2196f3"
            android:text="注册用户" />
    </LinearLayout>

</