detail

Author: hoc081098

app/build.gradle

@@ -1,8 +1,11 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
 apply plugin: 'androidx.navigation.safeargs'
 apply plugin: 'kotlin-kapt'
 
+androidExtensions { experimental = true }
+
 android {
     compileSdkVersion 29
     buildToolsVersion "29.0.3"

app/src/main/java/com/hoc081098/firestore_coroutinesflow/domain/entity/Category.kt

@@ -1,7 +1,11 @@
 package com.hoc081098.firestore_coroutinesflow.domain.entity
 
+import android.os.Parcelable
+import kotlinx.android.parcel.Parcelize
+
+@Parcelize
 data class Category(
   val id: String,
   val name: String,
   val imageUrl: String,
-)
+) : Parcelable

app/src/main/java/com/hoc081098/firestore_coroutinesflow/ui/category_detail/CategoryDetailFragment.kt

@@ -0,0 +1,13 @@
+package com.hoc081098.firestore_coroutinesflow.ui.category_detail
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import com.hoc081098.firestore_coroutinesflow.R
+
+class CategoryDetailFragment : Fragment(R.layout.category_detail_fragment) {
+  override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+    super.onViewCreated(view, savedInstanceState)
+
+  }
+}

app/src/main/java/com/hoc081098/firestore_coroutinesflow/ui/main/CategoryAdapter.kt

@@ -5,14 +5,16 @@ import android.view.ViewGroup
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.NO_POSITION
 import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.hoc081098.firestore_coroutinesflow.GlideRequests
 import com.hoc081098.firestore_coroutinesflow.R
 import com.hoc081098.firestore_coroutinesflow.databinding.CategoryItemBinding
 import com.hoc081098.firestore_coroutinesflow.domain.entity.Category
 
 class CategoryAdapter(
-  private val glide: GlideRequests
+  private val glide: GlideRequests,
+  private val onClickCategory: (Category) -> Unit,
 ) : ListAdapter<Category, CategoryAdapter.VH>(
   object : DiffUtil.ItemCallback<Category>() {
     override fun areItemsTheSame(oldItem: Category, newItem: Category) =
@@ -36,6 +38,15 @@ class CategoryAdapter(
   override fun onBindViewHolder(holder: VH, position: Int) = holder.bind(getItem(position))
 
   inner class VH(private val binding: CategoryItemBinding) : RecyclerView.ViewHolder(binding.root) {
+    init {
+      binding.root.setOnClickListener onClick@{
+        val position = bindingAdapterPosition
+        if (position != NO_POSITION) {
+          onClickCategory(getItem(position))
+        }
+      }
+    }
+
     fun bind(item: Category) {
       glide
         .load(item.imageUrl)

app/src/main/java/com/hoc081098/firestore_coroutinesflow/ui/main/MainFragment.kt

@@ -1,11 +1,11 @@
 package com.hoc081098.firestore_coroutinesflow.ui.main
 
 import android.os.Bundle
-import android.util.Log
 import android.view.View
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
 import androidx.recyclerview.widget.GridLayoutManager
 import com.hoc081098.firestore_coroutinesflow.GlideApp
 import com.hoc081098.firestore_coroutinesflow.Lce
@@ -23,7 +23,11 @@ class MainFragment : Fragment(R.layout.main_fragment) {
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
     super.onViewCreated(view, savedInstanceState)
 
-    val categoryAdapter = CategoryAdapter(GlideApp.with(this))
+    val categoryAdapter = CategoryAdapter(GlideApp.with(this)) { category ->
+      MainFragmentDirections
+        .actionMainFragmentToCategoryDetailFragment(category)
+        .let { findNavController().navigate(it) }
+    }
 
     binding.recyclerView.run {
       setHasFixedSize(true)

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

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/textView2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="TextView"
+        tools:layout_editor_absoluteX="137dp"
+        tools:layout_editor_absoluteY="194dp" />
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/navigation/main.xml

@@ -9,5 +9,21 @@
         android:id="@+id/mainFragment"
         android:name="com.hoc081098.firestore_coroutinesflow.ui.main.MainFragment"
         android:label="main_fragment"
-        tools:layout="@layout/main_fragment" />
+        tools:layout="@layout/main_fragment">
+        <action
+            android:id="@+id/action_mainFragment_to_categoryDetailFragment"
+            app:destination="@id/categoryDetailFragment" />
+    </fragment>
+
+    <fragment
+        android:id="@+id/categoryDetailFragment"
+        android:name="com.hoc081098.firestore_coroutinesflow.ui.category_detail.CategoryDetailFragment"
+        android:label="CategoryDetailFragment">
+
+        <argument
+            android:name="category"
+            app:argType="com.hoc081098.firestore_coroutinesflow.domain.entity.Category"
+            app:nullable="false" />
+
+    </fragment>
 </navigation>