public class LoginActivity extends BaseActivity {

private EditText accountEdit;

private EditText passwordEdit;

private Button login;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    accountEdit = findViewById(R.id.account);
    passwordEdit = findViewById(R.id.password);
    login = findViewById(R.id.login);

    login.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String account = accountEdit.getText().toString();
            String password = passwordEdit.getText().toString();
            if(account.equals("admin")&&password.equals("admin")){
                Intent intent = new Intent(LoginActivity.this,MainActivity.class);
                startActivity(intent);
                finish();
            }else{
                Toast.makeText(LoginActivity.this,"Account or password is invalid",Toast.LENGTH_SHORT).show();
            }
        }
    });

}

}

如圖所示上線的時(shí)候，通過(guò)驗(yàn)證用戶名和密碼，然后跳轉(zhuǎn)到另一個(gè)activity，那下線的時(shí)候應(yīng)該清除什么信息