Shivamdhuria

    val isSubmitEnabled: Flow<Boolean> = combine(_firstName, _password, _userID) { firstName, password, userId ->
            val regexString = "[a-zA-Z]+"
            val isNameCorrect = firstName.matches(regexString.toRegex())
            val isPasswordCorrect = password.length > 8
            val isUserIdCorrect = userId.contains("_")
            return@combine isNameCorrect and isPasswordCorrect and isUserIdCorrect
        }

Shivamdhuria

    fun setFirstName(name: String) {
        _firstName.value = name
    }

    fun setPassword(password: String) {
        _password.value = password
    }

    fun setUserId(id: String) {
        _userID.value = id

Shivamdhuria

override fun itemClickedClicked(view: View, dog: Dog) {
  
        exitTransition = Hold().apply {
            duration = resources.getInteger(R.integer.motion_duration_large).toLong()
        }

        reenterTransition = MaterialElevationScale(true).apply {
            duration = resources.getInteger(R.integer.motion_duration_small).toLong()
        }
        val toDogDetailsFragment = DogListFragmentDirections.actionDogListFragmentToDogDetailFragment(dog.imageUrl.toString(), dog.breed)

Shivamdhuria

 override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        postponeEnterTransition()
        view.doOnPreDraw { startPostponedEnterTransition() }
        ...
    }

Shivamdhuria

override fun onCreate(savedInstanceState: Bundle?) {

        sharedElementEnterTransition = MaterialContainerTransform().apply {
          
            duration = 300L
            isElevationShadowEnabled = true
            setAllContainerColors(requireContext().themeColor(R.attr.colorSurface))
        }
        super.onCreate(savedInstanceState)
    }

Shivamdhuria

class DogDetailFragment : Fragment(R.layout.dog_detail_fragment) {

    private val args: DogDetailFragmentArgs by navArgs()
  
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        val (imageUrl, breed) = args
         ImageLoader.loadImage(requireContext(), imageUrl, image_dog_detail)
        textview_dog_breed.text = breed
        //Set the unique transition name to the "end" view

Shivamdhuria

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
                                                     
    //End view of the Transition                                                 
    android:id="@+id/detail_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="false">

Shivamdhuria

class DogListFragment : Fragment(R.layout.dog_list_fragment), RecyclerAdapter.RecyclerViewClickListener {
   private val adapter by lazy(NONE) { RecyclerAdapter(this) }
  
  override fun onItemClicked(view: View, dog: Dog) {

        val toDogDetailsFragment = DogListFragmentDirections.actionDogListFragmentToDogDetailFragment(dog.imageUrl.toString(), dog.breed)
        val extras = FragmentNavigatorExtras(view to dog.imageUrl.toString())
        navigate(toDogDetailsFragment, extras)
    }
  

Shivamdhuria

class RecyclerAdapter(val callback: RecyclerViewClickListener) : ListAdapter<Dog, RecyclerAdapter.DogViewHolder>(UserDataAdapterListDiff()) {

    interface RecyclerViewClickListener {
        fun onItemClicked(view: View, dog: Dog)
    }
  ....inner class DogViewHolder(override val containerView: View) : RecyclerView.ViewHolder(containerView), LayoutContainer {
        fun bind(dog: Dog) {
            with(containerView) {
                breed_name.text = dog.breed?.capitalize()
                dog.imageUrl?.let { it1 -> ImageLoader.loadImage(containerView.context, it1, image_thumbnail) }

Shivamdhuria

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/item_container"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="4dp"
    android:src="?attr/selectableItemBackground"
    app:cardCornerRadius="8dp"