Android开发实战——登录注册页面（附源码）

很高兴为您解答关于Android开发的问题。以下是登录注册页面的示例代码：

1. activity_login.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Login"
        android:textSize="28sp"
        android:textColor="@android:color/black"
        android:layout_gravity="center_horizontal"/>

    <EditText
        android:id="@+id/et_email"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:hint="Email"/>

    <EditText
        android:id="@+id/et_password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:hint="Password"
        android:inputType="textPassword"/>

    <Button
        android:id="@+id/btn_login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="Login"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="Don't have an account?"
        android:textColor="@android:color/black"/>

    <TextView
        android:id="@+id/tv_register"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Register"
        android:textColor="@android:color/holo_blue_light"/>

</LinearLayout>

2. activity_register.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Register"
        android:textSize="28sp"
        android:textColor="@android:color/black"
        android:layout_gravity="center_horizontal"/>

    <EditText
        android:id="@+id/et_fullname"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:hint="Full Name"/>

    <EditText
        android:id="@+id/et_email"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:hint="Email"/>

    <EditText
        android:id="@+id/et_password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:hint="Password"
        android:inputType="textPassword"/>

    <Button
        android:id="@+id/btn_register"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="Register"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="Already have an account?"
        android:textColor="@android:color/black"/>

    <TextView
        android:id="@+id/tv_login"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Login"
        android:textColor="@android:color/holo_blue_light"/>

</LinearLayout>

3. LoginActivity.java

public class LoginActivity extends AppCompatActivity {

    private EditText etEmail, etPassword;
    private Button btnLogin;
    private TextView tvRegister;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        etEmail = findViewById(R.id.et_email);
        etPassword = findViewById(R.id.et_password);
        btnLogin = findViewById(R.id.btn_login);
        tvRegister = findViewById(R.id.tv_register);

        btnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Perform login logic
            }
        });

        tvRegister.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(LoginActivity.this, RegisterActivity.class);
                startActivity(intent);
            }
        });
    }
}

4. RegisterActivity.java

public class RegisterActivity extends AppCompatActivity {

    private EditText etFullname, etEmail, etPassword;
    private Button btnRegister;
    private TextView tvLogin;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);

        etFullname = findViewById(R.id.et_fullname);
        etEmail = findViewById(R.id.et_email);
        etPassword = findViewById(R.id.et_password);
        btnRegister = findViewById(R.id.btn_register);
        tvLogin = findViewById(R.id.tv_login);

        btnRegister.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Perform registration logic
            }
        });

        tvLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(RegisterActivity.this, LoginActivity.class);
                startActivity(intent);
            }
        });
    }
}

这个示例代码可以作为一个基础框架供您的开发使用。当然，您需要根据您的具体要求对代码进行修改。