package com.demo.logining; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { EditText Accm = findViewById(R.id.accM); EditText Pswm = findViewById(R.id.pasM); super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button1 = findViewById(R.id.button1); button1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(!Register1Activity.isRegister) Toast.makeText(MainActivity.this,"账号不存在,请先注册",Toast.LENGTH_LONG).show(); else { Toast.makeText(MainActivity.this, "登录成功!!!", Toast.LENGTH_LONG).show(); Intent i = new Intent(MainActivity.this, MyInfor1Activity.class); startActivity(i); } } }); // if(Register1Activity.isRegister){ // Intent intent=this.getIntent(); // Bundle bundle=intent.getExtras(); // String acc = bundle.getString("acc"); // String psw = bundle.getString("password"); // Accm.setText(acc); // Pswm.setText(psw); // } Button button2 = findViewById(R.id.button2); button2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent i =new Intent(MainActivity.this,Register1Activity.class); startActivity(i); } }); } }