今日总结

今天完成了app界面和注册

<?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="match_parent"
    android:orientation="vertical">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="学号"
        android:textColor="@android:color/holo_blue_bright"
        android:textSize="8pt" />
    <EditText
        android:id="@+id/id"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:textSize="8pt"
        android:inputType="number"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="用户名"
        android:textColor="@android:color/holo_blue_bright"
        android:textSize="8pt" />
    <EditText
        android:id="@+id/name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:textSize="8pt"
        android:inputType="text"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="手机号码"
        android:textColor="@android:color/holo_blue_bright"
        android:textSize="8pt" />
    <EditText
        android:id="@+id/phone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:textSize="8pt"
        android:inputType="text"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="班级"
        android:textColor="@android:color/holo_blue_bright"
        android:textSize="8pt" />
    <EditText
        android:id="@+id/unit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:textSize="8pt"
        android:inputType="text"
        />
    <Button
        android:id="@+id/add"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="10pt"
        android:text="注册"
        />
</LinearLayout>

<?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="match_parent"
    android:orientation="vertical">

    <Button
        android:id="@+id/b1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:text="注册"
        android:textColor="@android:color/holo_orange_dark"
        android:textSize="20pt" />
    <Button
        android:id="@+id/b2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:text="打卡"
        android:textColor="@android:color/holo_orange_dark"
        android:textSize="20pt" />
    <Button
        android:id="@+id/b3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:text="设置事件"
        android:textColor="@android:color/holo_orange_dark"
        android:textSize="20pt" />
</LinearLayout>

<?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="match_parent"
    android:orientation="vertical"
    >
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="每日关键字"
        android:textColor="@android:color/holo_blue_bright"
        android:textSize="8pt" />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:textSize="8pt"
        android:inputType="text"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:text="每日总结"
        android:textColor="@android:color/holo_blue_bright"
        android:textSize="8pt" />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:textColor="@android:color/holo_purple"
        android:layout_margin="15dp"
        android:textSize="8pt"
        android:background="@android:drawable/edit_text"
        android:inputType="text"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="10pt"
        android:text="增加"
        />
</LinearLayout>

package com.example.stusign;

import androidx.appcompat.app.AppCompatActivity;

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

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       Button b1=findViewById(R.id.b1);
       b1.setOnClickListener(this);
        Button b2=findViewById(R.id.b2);
        b2.setOnClickListener(this);
        Button b3=findViewById(R.id.b3);
        b3.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.b1:
                startActivity(new Intent(MainActivity.this,ResigerActivity.class));
                break;
            case R.id.b2:
                startActivity(new Intent(MainActivity.this,SignActivity.class));
                break;
            case R.id.b3:
                break;
        }
    }
}

package com.example.stusign;


import android.content.Context;
import android.content.DialogInterface;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import com.example.stusign.pojo.Stu;
import com.example.stusign.utils.StuUtils;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

public class ResigerActivity extends AppCompatActivity implements View.OnClickListener {
    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.stu_resiger);
        Button button=findViewById(R.id.add);
        button.setOnClickListener(this);

    }

    @Override
    public void onClick(View view) {
        EditText editText=findViewById(R.id.id);
        int id=Integer.parseInt(editText.getText().toString());
        editText=findViewById(R.id.name);
        String name=editText.getText().toString();
        editText=findViewById(R.id.phone);
        String phone=editText.getText().toString();
        editText=findViewById(R.id.unit);
        String unit=editText.toString();
        String sqlpath=getFilesDir()+"/stu.db";
        SQLiteDatabase sqLiteDatabase=openOrCreateDatabase(sqlpath, Context.MODE_PRIVATE,null);
        AlertDialog.Builder builder=new AlertDialog.Builder(this);
        StuUtils stuUtils=StuUtils.getStuUtils(this);
        stuUtils.onCreate(sqLiteDatabase);
        builder.setTitle("注册结果");
        if(stuUtils.add(sqLiteDatabase,new Stu(id,name,phone,unit))){
            builder.setMessage("注册成功");
        }
        else{
            builder.setMessage("注册失败");
        }
        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                finish();
            }
        });
        builder.show();
    }
}

package com.example.stusign.utils;

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

import androidx.annotation.Nullable;

import com.example.stusign.pojo.Stu;

public class StuUtils extends SQLiteOpenHelper {
    private static StuUtils stuUtils;
    private static final String Name="stu";

    public static  StuUtils getStuUtils(Context context){
        if(stuUtils==null) stuUtils=new StuUtils(context);
        return stuUtils;
    }
    private StuUtils(@Nullable Context context){
        super(context,Name,null,1);
    }
    @Override
    public void onCreate(SQLiteDatabase sqLiteDatabase) {
        String sql="create table stu(" +
                "id int(4) not null PRIMARY KEY," +
                "`name` varchar(10) not null," +
                "phone varchar(16) not null," +
                "unit varchar(10) not null" +
                ")";
        sqLiteDatabase.execSQL(sql);
    }
    public Boolean add(SQLiteDatabase sqLiteDatabase,Stu stu){
        ContentValues values=new ContentValues();
        values.put("id",stu.getId());
        values.put("name",stu.getName());
        values.put("phone",stu.getPhone());
        values.put("unit", stu.getUnit());
        return sqLiteDatabase.insert(Name,null,values)>0;
    }

    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {

    }
}

package com.example.stusign.utils;

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

import com.example.stusign.pojo.Sign;

public class SignUtils extends SQLiteOpenHelper {
    private static SignUtils signUtils;
    private static final String Name="sign";
    public SignUtils getSignUtils(Context context){
        if(signUtils==null) signUtils=new SignUtils(context);
        return signUtils;
    }
    private SignUtils(Context context){
        super(context,Name,null,1);
    }
    @Override
    public void onCreate(SQLiteDatabase sqLiteDatabase) {
        String sql="create table sign(" +
                "id int(4) not null PRIMARY KEY," +
                "`date` varchar(20) not null," +
                "days int not null," +
                "longdays int not null," +
                "keywords varchar(50) not null," +
                "summary varchar(500) not null)";
        sqLiteDatabase.execSQL(sql);
    }
    public Boolean add(SQLiteDatabase sqLiteDatabase, Sign sign){
        ContentValues values=new ContentValues();
        values.put("id",sign.getId());
        values.put("date",sign.getDate());
        values.put("days",sign.getDays());
        values.put("longdays",sign.getLongdays());
        values.put("keywords",sign.getKeywords());
        values.put("summary",sign.getSummary());
     return   sqLiteDatabase.insert(Name,null,values)>0;

    }
    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {

    }
}