JAVA日报

换汤不换药之家庭记账本app开发(MainActivity)

package com.example.jizhang;

import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

import adapter.UserListAdapter;
import bean.user;
import dao.userdao;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    private EditText editText0;
    private EditText editText1;
    private EditText editText2;
    private EditText editText3;
    private EditText editText4;
    private EditText editText5;
    private ListView mUserList1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initUI();
        userdao userDao=userdao.getInstance(getApplicationContext());
        Log.e("qwer","1234");
        List<user> userList=userDao.findAll();
        for(user u:userList){
            Log.e("user",u.getEat());
        }
    }
    private void initUI() {
        String a = dat();
        editText0 = (EditText) findViewById(R.id.edt_date);
        editText0.setText(a);
        editText1 = (EditText) findViewById(R.id.edt_eat);
        editText2 = (EditText) findViewById(R.id.edt_play);
        editText3 = (EditText) findViewById(R.id.edt_clothes);
        editText4 = (EditText) findViewById(R.id.edt_live);
        editText5 = (EditText) findViewById(R.id.edt_usual);
        mUserList1=findViewById(R.id.user_list);
        findViewById(R.id.btn).setOnClickListener(this);
        findViewById(R.id.btn2).setOnClickListener(this);
        findViewById(R.id.btn3).setOnClickListener(this);
        findViewById(R.id.btn4).setOnClickListener(this);
    }
    @Override
    public void onClick(View v) {
        Intent intent=new Intent();
        if(v.getId()==R.id.btn)  {
            String date = editText0.getText().toString();
            String eat = editText1.getText().toString();
            String play = editText2.getText().toString();
            String clothes = editText3.getText().toString();
            String live = editText4.getText().toString();
            String usual = editText5.getText().toString();
            if (eat.length()==0||play.length()==0||clothes.length()==0||live.length()==0||usual.length()==0) {
                Toast.makeText(getApplicationContext(), "请输入完整", Toast.LENGTH_SHORT).show();
                return;
            } else {
                savedb(date,eat,play,clothes,live,usual);
                Toast.makeText(getApplicationContext(), "添加成功", Toast.LENGTH_SHORT).show();
                return;
            }}
        else if(v.getId()==R.id.btn2){
            intent.setClass(getApplicationContext(),FirstActivity.class);
        }
        else if(v.getId()==R.id.btn3){
            intent.setClass(getApplicationContext(),ThirdActivity.class);
        }
        else if(v.getId()==R.id.btn4){
            intent.setClass(getApplicationContext(),SecondActivity.class);
        }
        startActivity(intent);
    }
    private void InitData(){
        userdao userDao=userdao.getInstance(getApplicationContext());
        List<user> userList=userDao.findAll();
        UserListAdapter adapter=new UserListAdapter(getApplicationContext(),userList);
        mUserList1.setAdapter(adapter);
    }
    private void savedb(String date, String eat, String play, String clothes, String live,String usual) {
        userdao userDao = userdao.getInstance(getApplicationContext());
        user u = new user(date,eat,play,clothes,live,usual);
        userDao.insert(u);
    }
    public static String dat() {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");//设置日期格式
        String str = df.format(new Date());
        //System.out.println(df.format(new Date()));// new Date()为获取当前系统时间
        return str;
    }

    @Override
    public void onPointerCaptureChanged(boolean hasCapture) {

    }
}