gsrathoreniks

import android.content.Context
import android.net.ConnectivityManager
import android.net.Network
import android.net.NetworkCapabilities
import android.net.NetworkRequest
import android.os.Bundle
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import androidx.lifecycle.ViewModel
import androidx.lifecycle.ViewModelProvider

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<activity android:launchMode="singleInstance"/>

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<activity android:launchMode="singleTask"/>

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<activity android:launchMode="singleTop"/>

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<activity android:launchMode="standard"/>

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package `in`.gsrathoreniks.validationdemo

import androidx.appcompat.widget.AppCompatEditText
import java.util.regex.Pattern

object ValidationUtil {

    fun isValidUsername(view: AppCompatEditText, username: String?, regex: String = "^[a-zA-Z0-9._-]{3,20}$"): Boolean {
        view.requestFocus()
        when {

gsrathoreniks

package `in`.gsrathoreniks.validationdemo

import android.annotation.SuppressLint
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import com.google.android.material.button.MaterialButton
import com.google.android.material.textfield.TextInputEditText

class MainActivity : AppCompatActivity() {

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private var _binding: FragmentProfileBinding? = null
// This property is only valid between onCreateView and
// onDestroyView.
private val binding get() = _binding!!

override fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
): View? {

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private lateinit var binding: ActivityProfileBinding

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        //initializing binding
        binding = ActivityProfileBinding.inflate(layoutInflater)
        val view = binding.root
        setContentView(view)
}

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<LinearLayout ... >
    <ImageView android:cropToPadding="true" />
    <TextView android:id="@+id/tvName" />
    <Button android:id="@+id/nextBtn"
        android:background="@drawable/rounded_button" />
</LinearLayout>