2023.3.16每日总结

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

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

public class statistics extends AppCompatActivity {
    private DBOpenHelper1 dbOpenHelper1;
    private EditText et_DaKa_studentID;
    @SuppressLint("MissingInflatedId")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_statistics);
        Button btn_Check_student=(Button)findViewById(R.id.btn_Check_student);
        et_DaKa_studentID=findViewById(R.id.et_DaKa_studentID);
        dbOpenHelper1=new DBOpenHelper1(statistics.this,"dakaData.db",null,1);
        btn_Check_student.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String studentID=et_DaKa_studentID.getText().toString();
                int arr1[]=new int[10];
                arr1=dbOpenHelper1.chaxunid(studentID,dbOpenHelper1.getReadableDatabase());
                Bundle b=new Bundle();
                b.putIntArray("arr",arr1);
                Intent intent= new Intent(statistics.this,ShowStatistic.class);
                intent.putExtras(b);
                startActivity(intent);
                statistics.this.finish();
            }
        });
    }
}


<?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=".statistics"
    android:orientation="vertical"
    >
    <EditText
        android:id="@+id/et_DaKa_studentID"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请输入需要查询的学生学号"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="200dp"/>
    <Button
        android:id="@+id/btn_Check_student"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="一键查询"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="20dp" />

</LinearLayout>