01每日打卡 3月20日

今天开始了学习记录功能开发，这个难点在于如何利用数据库对录入的数据进行计算和综合。

package com.example.myapplication;

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

import androidx.appcompat.app.AppCompatActivity;

public class add extends AppCompatActivity {
    Button add,back,aim;
    Button clock,query;

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.add1);
        aim = this.findViewById(R.id.aim);
        add = this.findViewById(R.id.add);
        clock=this.findViewById(R.id.clock);
        query=this.findViewById(R.id.query);
        back=this.findViewById(R.id.back);
        add.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setClass(add.this,addData.class);
                startActivity(intent);
                Toast.makeText(add.this,"添加数据！",Toast.LENGTH_SHORT).show();
            }
        });
        clock.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setClass(add.this,ClockActivity.class);
                startActivity(intent);
                Toast.makeText(add.this,"设置闹钟",Toast.LENGTH_SHORT).show();
            }
        });
        query.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setClass(add.this,queryActivity.class);
                startActivity(intent);
                Toast.makeText(add.this,"查询数据",Toast.LENGTH_SHORT).show();
            }
        });
        aim.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setClass(add.this,addMudi.class);
                startActivity(intent);
                Toast.makeText(add.this,"目标设定",Toast.LENGTH_SHORT).show();
            }
        });
        back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setClass(add.this,MainActivity.class);
                startActivity(intent);
                Toast.makeText(add.this,"返回",Toast.LENGTH_SHORT).show();

            }
        });
    }

}

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".addData">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        tools:layout_editor_absoluteX="135dp"
        tools:layout_editor_absoluteY="342dp">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="日期" >

        </TextView>

        <EditText
            android:id="@+id/date"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="关键字:" />

        <EditText
            android:id="@+id/title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:inputType="text"

            />

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="每日总结:" />

        <EditText
            android:id="@+id/zongjie"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:inputType="text" />

        <Button
            android:id="@+id/submit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="提交" />
        <Button
            android:id="@+id/back"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:text="返回"
            />
    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>