01每日打卡 3月19日

今天完善了每周目标书写的实现，后端数据库数据的录入。

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.ContentValues;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class addMudi extends AppCompatActivity {
    EditText mubiao;
    Button submit,back;
    Mysql mysql;
    SQLiteDatabase db;
    SharedPreferences sp;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.goal);
        mubiao  = this.findViewById(R.id.mubiao);
        submit =   this.findViewById(R.id.submit);
        back=this.findViewById(R.id.back);
        mysql = new Mysql(addMudi.this,"addate",null,2);      //建数据库
        db = mysql.getReadableDatabase();
        sp = this.getSharedPreferences("addate",this.MODE_PRIVATE);


        submit.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                String mubiao1 = mubiao .getText().toString();
                Cursor cursor1=db.rawQuery("select * from adda",new String[]{});
                int i=cursor1.getCount();
                cursor1.close();

                ContentValues cv = new ContentValues();
                cv.put("mubiao",mubiao1);

                db.insert("adda",null,cv);
                SharedPreferences.Editor editor = sp.edit();
                editor.putString("mubiao",mubiao1);

                Intent intent = new Intent();
                intent.setClass(addMudi.this,add.class);
                startActivity(intent);
                editor.commit();

                Toast.makeText(addMudi.this, "设定成功！您已经坚持"+i+"天", Toast.LENGTH_LONG).show();
            }




        });
        back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setClass(addMudi.this,add.class);
                startActivity(intent);
                Toast.makeText(addMudi.this,"返回",Toast.LENGTH_SHORT).show();

            }
        });
    }
}