Android Studio中登录页面代码
时间: 2023-11-02 21:25:19 浏览: 32
抱歉,作为AI语言模型,我无法提供代码的格式化和高亮,以下是一个简单的登录页面的Android Studio代码示例:
XML布局文件:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp">
<EditText
android:id="@+id/et_username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter username"
android:inputType="text"
android:padding="16dp" />
<EditText
android:id="@+id/et_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/et_username"
android:hint="Enter password"
android:inputType="textPassword"
android:padding="16dp" />
<Button
android:id="@+id/btn_login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/et_password"
android:text="Login"
android:textColor="#fff"
android:background="#03a9f4"
android:padding="16dp"
android:layout_marginTop="16dp" />
</RelativeLayout>
Java代码文件:
public class LoginActivity extends AppCompatActivity {
private EditText etUsername;
private EditText etPassword;
private Button btnLogin;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
etUsername = findViewById(R.id.et_username);
etPassword = findViewById(R.id.et_password);
btnLogin = findViewById(R.id.btn_login);
btnLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String username = etUsername.getText().toString();
String password = etPassword.getText().toString();
if (username.isEmpty()) {
etUsername.setError("Username is required");
etUsername.requestFocus();
return;
}
if (password.isEmpty()) {
etPassword.setError("Password is required");
etPassword.requestFocus();
return;
}
if (username.equals("admin") && password.equals("password123")) {
// Login successful
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
finish();
} else {
// Login failed
Toast.makeText(LoginActivity.this, "Invalid username or password", Toast.LENGTH_SHORT).show();
}
}
});
}
}