Hide/show favorite icon on sign-out/sign-in

app/src/main/java/gq/kirmanak/mealient/ui/recipes/RecipeViewHolder.kt

@@ -2,7 +2,11 @@ package gq.kirmanak.mealient.ui.recipes
 
 import android.view.View
 import androidx.annotation.StringRes
+import androidx.core.view.isVisible
 import androidx.recyclerview.widget.RecyclerView
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
 import dagger.hilt.android.scopes.FragmentScoped
 import gq.kirmanak.mealient.R
 import gq.kirmanak.mealient.database.recipe.entity.RecipeSummaryEntity
@@ -10,25 +14,24 @@ import gq.kirmanak.mealient.databinding.ViewHolderRecipeBinding
 import gq.kirmanak.mealient.extensions.resources
 import gq.kirmanak.mealient.logging.Logger
 import gq.kirmanak.mealient.ui.recipes.images.RecipeImageLoader
-import javax.inject.Inject
 
-class RecipeViewHolder private constructor(
+class RecipeViewHolder @AssistedInject constructor(
     private val logger: Logger,
-    private val binding: ViewHolderRecipeBinding,
+    @Assisted private val binding: ViewHolderRecipeBinding,
     private val recipeImageLoader: RecipeImageLoader,
-    private val clickListener: (ClickEvent) -> Unit,
+    @Assisted private val showFavoriteIcon: Boolean,
+    @Assisted private val clickListener: (ClickEvent) -> Unit,
 ) : RecyclerView.ViewHolder(binding.root) {
 
     @FragmentScoped
-    class Factory @Inject constructor(
-        private val recipeImageLoader: RecipeImageLoader,
-        private val logger: Logger,
-    ) {
+    @AssistedFactory
+    interface Factory {
 
         fun build(
+            showFavoriteIcon: Boolean,
             binding: ViewHolderRecipeBinding,
             clickListener: (ClickEvent) -> Unit,
-        ) = RecipeViewHolder(logger, binding, recipeImageLoader, clickListener)
+        ): RecipeViewHolder
 
     }
 
@@ -59,6 +62,7 @@ class RecipeViewHolder private constructor(
                 logger.d { "bind: item clicked $entity" }
                 clickListener(ClickEvent.RecipeClick(entity))
             }
+            binding.favoriteIcon.isVisible = showFavoriteIcon
             binding.favoriteIcon.setOnClickListener {
                 clickListener(ClickEvent.FavoriteClick(entity))
             }

app/src/main/java/gq/kirmanak/mealient/ui/recipes/RecipesListFragment.kt

@@ -55,7 +55,9 @@ class RecipesListFragment : Fragment(R.layout.fragment_recipes_list) {
                 checkedMenuItemId = R.id.recipes_list
             )
         }
-        setupRecipeAdapter()
+        viewModel.showFavoriteIcon.observe(viewLifecycleOwner) { showFavoriteIcon ->
+            setupRecipeAdapter(showFavoriteIcon)
+        }
         hideKeyboardOnScroll()
     }
 
@@ -87,10 +89,10 @@ class RecipesListFragment : Fragment(R.layout.fragment_recipes_list) {
         return findNavController().currentDestination?.id != R.id.recipesListFragment
     }
 
-    private fun setupRecipeAdapter() {
+    private fun setupRecipeAdapter(showFavoriteIcon: Boolean) {
         logger.v { "setupRecipeAdapter() called" }
 
-        val recipesAdapter = recipePagingAdapterFactory.build {
+        val recipesAdapter = recipePagingAdapterFactory.build(showFavoriteIcon) {
             when (it) {
                 is RecipeViewHolder.ClickEvent.FavoriteClick -> {
                     onFavoriteClick(it)

app/src/main/java/gq/kirmanak/mealient/ui/recipes/RecipesListViewModel.kt

@@ -2,6 +2,7 @@ package gq.kirmanak.mealient.ui.recipes
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.asLiveData
 import androidx.lifecycle.liveData
 import androidx.lifecycle.viewModelScope
 import androidx.paging.cachedIn
@@ -23,6 +24,7 @@ class RecipesListViewModel @Inject constructor(
 ) : ViewModel() {
 
     val pagingData = recipeRepo.createPager().flow.cachedIn(viewModelScope)
+    val showFavoriteIcon = authRepo.isAuthorizedFlow.asLiveData()
 
     init {
         authRepo.isAuthorizedFlow.valueUpdatesOnly().onEach { hasAuthorized ->
@@ -40,7 +42,6 @@ class RecipesListViewModel @Inject constructor(
         }
     }
 
-    // TODO hide favourite icons if not authorized
     fun onFavoriteIconClick(recipeSummaryEntity: RecipeSummaryEntity) = liveData {
         logger.v { "onFavoriteIconClick() called with: recipeSummaryEntity = $recipeSummaryEntity" }
         recipeRepo.updateIsRecipeFavorite(

app/src/main/java/gq/kirmanak/mealient/ui/recipes/RecipesPagingAdapter.kt

@@ -4,27 +4,29 @@ import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.paging.PagingDataAdapter
 import androidx.recyclerview.widget.DiffUtil
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
 import dagger.hilt.android.scopes.FragmentScoped
 import gq.kirmanak.mealient.database.recipe.entity.RecipeSummaryEntity
 import gq.kirmanak.mealient.databinding.ViewHolderRecipeBinding
 import gq.kirmanak.mealient.logging.Logger
-import javax.inject.Inject
 
-class RecipesPagingAdapter private constructor(
+class RecipesPagingAdapter @AssistedInject constructor(
     private val logger: Logger,
     private val recipeViewHolderFactory: RecipeViewHolder.Factory,
-    private val clickListener: (RecipeViewHolder.ClickEvent) -> Unit
+    @Assisted private val showFavoriteIcon: Boolean,
+    @Assisted private val clickListener: (RecipeViewHolder.ClickEvent) -> Unit
 ) : PagingDataAdapter<RecipeSummaryEntity, RecipeViewHolder>(RecipeDiffCallback) {
 
     @FragmentScoped
-    class Factory @Inject constructor(
-        private val logger: Logger,
-        private val recipeViewHolderFactory: RecipeViewHolder.Factory,
-    ) {
+    @AssistedFactory
+    interface Factory {
 
-        fun build(clickListener: (RecipeViewHolder.ClickEvent) -> Unit) = RecipesPagingAdapter(
-            logger, recipeViewHolderFactory, clickListener
-        )
+        fun build(
+            showFavoriteIcon: Boolean,
+            clickListener: (RecipeViewHolder.ClickEvent) -> Unit,
+        ): RecipesPagingAdapter
     }
 
     override fun onBindViewHolder(holder: RecipeViewHolder, position: Int) {
@@ -37,7 +39,7 @@ class RecipesPagingAdapter private constructor(
         logger.v { "onCreateViewHolder() called with: parent = $parent, viewType = $viewType" }
         val inflater = LayoutInflater.from(parent.context)
         val binding = ViewHolderRecipeBinding.inflate(inflater, parent, false)
-        return recipeViewHolderFactory.build(binding, clickListener)
+        return recipeViewHolderFactory.build(showFavoriteIcon, binding, clickListener)
     }
 
     private object RecipeDiffCallback : DiffUtil.ItemCallback<RecipeSummaryEntity>() {

app/src/main/res/layout/view_holder_recipe.xml

@@ -40,6 +40,7 @@
 			app:layout_constraintStart_toStartOf="parent"
 			app:layout_constraintTop_toBottomOf="@id/favorite_icon"
 			app:layout_constraintVertical_chainStyle="packed"
+			app:layout_goneMarginTop="@dimen/margin_medium"
 			app:shapeAppearance="?shapeAppearanceCornerMedium"
 			tools:srcCompat="@drawable/placeholder_recipe" />
 
@@ -52,6 +53,7 @@
 			app:layout_constraintBottom_toTopOf="@+id/image"
 			app:layout_constraintEnd_toEndOf="@id/image"
 			app:layout_constraintTop_toTopOf="parent"
-			tools:srcCompat="@drawable/ic_favorite_unfilled" />
+			tools:srcCompat="@drawable/ic_favorite_unfilled"
+			tools:visibility="gone" />
 	</androidx.constraintlayout.widget.ConstraintLayout>
 </com.google.android.material.card.MaterialCardView>