Internship Form using XML

activity_form.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#1e2940"
    android:padding="16dp"
    tools:context=".FormActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:text="Internship Form"
            android:textColor="@color/white"
            android:textSize="24sp"
            android:textStyle="bold" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="32dp"
            android:text="Name"
            android:textColor="#DBDAF1" />

        <EditText
            android:id="@+id/name_et"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/white"
            android:inputType="textPersonName"
            android:textColor="@color/white"
            android:textColorHint="@color/white" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="32dp"
            android:text="Email"
            android:textColor="#DBDAF1" />

        <EditText
            android:id="@+id/email_et"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/white"
            android:inputType="textEmailAddress"
            android:textColor="@color/white"
            android:textColorHint="@color/white" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="Phone No."
            android:textColor="#DBDAF1" />

        <EditText
            android:id="@+id/phone_et"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/white"
            android:inputType="phone"
            android:textColor="@color/white"
            android:textColorHint="@color/white" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="LinkedIn Link"
            android:textColor="#DBDAF1" />

        <EditText
            android:id="@+id/linkedin_et"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/white"
            android:inputType="textUri"
            android:textColor="@color/white"
            android:textColorHint="@color/white" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="GitHub Link"
            android:textColor="#DBDAF1" />

        <EditText
            android:id="@+id/github_et"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/white"
            android:inputType="textUri"
            android:textColor="@color/white"
            android:textColorHint="@color/white" />

        <Button
            android:id="@+id/submit_btn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="32dp"
            android:backgroundTint="@color/white"
            android:text="Submit"
            android:textColor="#1e2940" />

        <ProgressBar
            android:id="@+id/progress"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginVertical="16dp"
            android:visibility="invisible"
            tools:visibility="visible" />

    </LinearLayout>

</ScrollView>

FormActivity.kt

package com.maad.profileapp

import android.os.Bundle
import android.widget.Toast
import androidx.activity.enableEdgeToEdge
import androidx.appcompat.app.AppCompatActivity
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat
import androidx.core.view.isVisible
import com.google.firebase.firestore.DocumentReference
import com.google.firebase.firestore.FirebaseFirestore
import com.google.firebase.firestore.ktx.firestore
import com.google.firebase.ktx.Firebase
import com.maad.profileapp.databinding.ActivityFormBinding

class FormActivity : AppCompatActivity() {

    private lateinit var db: FirebaseFirestore
    private lateinit var binding: ActivityFormBinding
    private var name = ""
    private var email = ""
    private var linkedin = ""
    private var github = ""
    private var phoneNo = ""

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        binding = ActivityFormBinding.inflate(layoutInflater)
        setContentView(binding.root)
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
            val scale = resources.displayMetrics.density
            val px = (16 * scale + 0.5f).toInt()
            v.setPadding(
                systemBars.left + px,
                systemBars.top + px,
                systemBars.right + px,
                systemBars.bottom + px
            )
            insets
        }
        db = Firebase.firestore

        binding.submitBtn.setOnClickListener {
            name = binding.nameEt.text.toString()
            email = binding.emailEt.text.toString()
            linkedin = binding.linkedinEt.text.toString()
            github = binding.githubEt.text.toString()
            phoneNo = binding.phoneEt.text.toString()
            binding.progress.isVisible = true
            uploadProfile()
        }

    }

    private fun uploadProfile() {
        val user = User(name, email, phoneNo, linkedin, github)
        db
            .collection("users")
            .add(user)
            .addOnSuccessListener {
                updateId(it)
            }
    }

    private fun updateId(docRef: DocumentReference) {
        docRef.update("id", docRef.id).addOnSuccessListener {
            binding.progress.isVisible = false
            Toast.makeText(this, "Submitted!", Toast.LENGTH_SHORT).show()
        }
    }

}