Delete 'AndroidStudio_projects/app/src/main/java/com/example/hamburger/MainActivity.java'

AndroidStudio_projects/app/src/main/java/com/example/hamburger/MainActivity.java

@@ -1,70 +0,0 @@
-package com.example.hamburger;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.widget.EditText;
-import android.view.View;
-import android.widget.Toast;
-import android.widget.Button;
-import android.os.Handler;
-import android.os.Message;
-import android.annotation.SuppressLint;
-import com.example.hamburger.dao.UserDao;
-
-public class MainActivity extends AppCompatActivity {
-
-    //这个类主要用来进行，账号密码的验证，以及监听事件的编写。
-    // 所以首先需要将一开始设计的输入文本框id name 和passwd获取。
-    EditText name;//创建账号
-    EditText passwd;//创建密码
-
-    private static final String TAG="mysql-party-MainActivity";
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
-
-    }
-
-    public void login(View view){
-
-        EditText EditTextAccount = findViewById(R.id.name);
-        EditText EditTextPassword = findViewById(R.id.passwd);
-
-        Button button = (Button) findViewById(R.id.button);
-
-        new Thread(){
-            @Override
-            public void run() {
-                UserDao userDao = new UserDao();
-                int msg = userDao.login(EditTextAccount.getText().toString(),EditTextPassword.getText().toString());
-                hand1.sendEmptyMessage(msg);
-            }
-        }.start();
-    }
-
-    public void reg(View view){
-        startActivity(new Intent(getApplicationContext(),register.class));
-    }
-
-    @SuppressLint("HandlerLeak")
-    final Handler hand1 = new Handler() {
-        @Override
-        public void handleMessage(Message msg) {
-            if (msg.what == 0){
-                Toast.makeText(getApplicationContext(), "登录失败", Toast.LENGTH_LONG).show();
-            } else if (msg.what == 1) {
-                Toast.makeText(getApplicationContext(), "登录成功", Toast.LENGTH_LONG).show();
-                startActivity(new Intent(getApplicationContext(),MainActivity2.class));
-            } else if (msg.what == 2){
-                Toast.makeText(getApplicationContext(), "密码错误", Toast.LENGTH_LONG).show();
-            } else if (msg.what == 3){
-                Toast.makeText(getApplicationContext(), "账号不存在", Toast.LENGTH_LONG).show();
-            }
-        }
-    };
-
-}