体温填报APP--切换用户

切换用户需要进行当前用户的切换

package com.example.tiwen20;

import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class qiehuanActivity extends AppCompatActivity {
    private ListView listView;
    private UserAdapter userAdapter;
    private Cursor cursor;
    private UserDB userDB;
    private Log log;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_qiehuan);
        listView = (ListView)findViewById(R.id.lv_user);
        userDB = new UserDB(this);
        cursor = userDB.getAlluserData();
        userAdapter = new UserAdapter(this,cursor);
        listView.setAdapter(userAdapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                TextView textView1 = (TextView)view.findViewById(R.id.tv_name);
                TextView textView3 = (TextView)view.findViewById(R.id.tv_classes);
                Intent intent = getIntent();
                intent.putExtra("name",textView1.getText());
                intent.putExtra("classes",textView3.getText());
                intent.setClass(qiehuanActivity.this, MainActivity.class);
                startActivity(intent);
            }
        });
        log.v("mylog","这是我的调试信息******************************");
    }
}