How to arrange a username field, password field, login button and forgot credential buttons in Kotlin programmatically?

In Android development with Kotlin, you can arrange UI elements programmatically by creating and configuring EditText and Button widgets and setting their layout parameters. Here’s an example of how you can arrange a username field, password field, login button, and forgot credential button in Kotlin programmatically:

import android.os.Bundle
import android.view.Gravity
import android.widget.Button
import android.widget.EditText
import android.widget.LinearLayout
import androidx.appcompat.app.AppCompatActivity

class LoginActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // Create a LinearLayout
        val linearLayout = LinearLayout(this)
        linearLayout.layoutParams = LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.MATCH_PARENT
        )
        linearLayout.orientation = LinearLayout.VERTICAL
        linearLayout.gravity = Gravity.CENTER

        // Create Username EditText
        val usernameEditText = EditText(this)
        usernameEditText.hint = "Username"
        linearLayout.addView(usernameEditText)

        // Create Password EditText
        val passwordEditText = EditText(this)
        passwordEditText.hint = "Password"
        passwordEditText.inputType = android.text.InputType.TYPE_CLASS_TEXT or
                android.text.InputType.TYPE_TEXT_VARIATION_PASSWORD
        linearLayout.addView(passwordEditText)

        // Create Login Button
        val loginButton = Button(this)
        loginButton.text = "Login"
        linearLayout.addView(loginButton)

        // Create Forgot Credentials Button
        val forgotButton = Button(this)
        forgotButton.text = "Forgot Credentials"
        linearLayout.addView(forgotButton)

        // Set content view to the LinearLayout
        setContentView(linearLayout)
    }
}

In this example:

1. We create a LinearLayout programmatically, which serves as the container for the UI elements.
2. We create EditText widgets for the username and password fields, and Button widgets for the login and forgot credentials buttons.
3. We set the hints, input type, and text for the UI elements.
4. We add these UI elements to the LinearLayout.
5. We set the content view of the activity to the LinearLayout.

This is a basic example, and you can customize it further based on your design requirements by adjusting the properties and layout parameters of the UI elements.