WIP Implementing detail

app/src/main/java/it/danieleverducci/subitobeers/BeerNavigation.kt

@@ -0,0 +1,7 @@
+package it.danieleverducci.subitobeers
+
+import it.danieleverducci.subitobeers.entities.Beer
+
+interface BeerNavigation {
+    fun showBeerDetail(beer: Beer)
+}

app/src/main/java/it/danieleverducci/subitobeers/MainActivity.kt

@@ -1,10 +1,11 @@
 package it.danieleverducci.subitobeers
 
-import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
 import it.danieleverducci.subitobeers.entities.Beer
+import it.danieleverducci.subitobeers.ui.BeerDetailFragment
 
-class MainActivity : AppCompatActivity() {
+class MainActivity : AppCompatActivity(), BeerNavigation {
 
     companion object {
         val TAG = "MainActivity"
@@ -13,14 +14,26 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-
     }
 
-    fun showBeerDetail(beer: Beer) {
+    override fun showBeerDetail(beer: Beer) {
-        // TODO
+        val detailFragment = BeerDetailFragment()
+        supportFragmentManager.beginTransaction()
+            .replace(R.id.fragment_container, detailFragment)
+            .addToBackStack(null)
+            .commit()
     }
 
+    override fun onBackPressed() {
+        super.onBackPressed()
 
+        val bsf = supportFragmentManager.backStackEntryCount
+        if(bsf == 0) {
+            super.onBackPressed()
+        } else {
+            supportFragmentManager.popBackStack()
+        }
+    }
 
 
 }

app/src/main/java/it/danieleverducci/subitobeers/ui/BeerDetailFragment.kt

@@ -0,0 +1,39 @@
+package it.danieleverducci.subitobeers.ui
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import it.danieleverducci.subitobeers.databinding.FragmentBeerDetailBinding
+
+class BeerDetailFragment : Fragment() {
+
+    lateinit var binding: FragmentBeerDetailBinding
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        binding = FragmentBeerDetailBinding.inflate(
+            LayoutInflater.from(container!!.context),
+            container,
+            false
+        )
+
+        // Populate view
+
+        return binding.root
+    }
+
+    override fun onStart() {
+        super.onStart()
+        activity?.actionBar?.setDisplayHomeAsUpEnabled(true);
+    }
+
+    override fun onStop() {
+        super.onStop()
+        activity?.actionBar?.setDisplayHomeAsUpEnabled(false);
+    }
+}

app/src/main/java/it/danieleverducci/subitobeers/ui/BeersFragment.kt

@@ -8,6 +8,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
+import it.danieleverducci.subitobeers.BeerNavigation
 import it.danieleverducci.subitobeers.BeersRepository
 import it.danieleverducci.subitobeers.R
 import it.danieleverducci.subitobeers.entities.Beer
@@ -64,7 +65,10 @@ class BeersFragment : Fragment(), BeersRepository.Listener, BeerRecyclerAdapter.
      * Called when an item is clicked in the list
      */
     override fun OnItemClicked(item: Beer) {
-        TODO("Not yet implemented")
+        if (activity is BeerNavigation)
+            (activity as BeerNavigation).showBeerDetail(item);
+        else
+            throw IllegalStateException("Activity must implement BeerNavigation")
     }
 
     /**

app/src/main/res/drawable/ic_firstbrewed.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M20,3h-1L19,1h-2v2L7,3L7,1L5,1v2L4,3c-1.1,0 -2,0.9 -2,2v16c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,5c0,-1.1 -0.9,-2 -2,-2zM20,21L4,21L4,8h16v13z"/>
+</vector>

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

@@ -8,7 +8,7 @@
 
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/fragment_container"
-        android:name="it.danieleverducci.subitobeers.BeersFragment"
+        android:name="it.danieleverducci.subitobeers.ui.BeersFragment"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
     </androidx.fragment.app.FragmentContainerView>

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

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.core.widget.NestedScrollView 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:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.BeerDetailFragment">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <ImageView
+            android:id="@+id/beer_detail_pic"
+            android:layout_width="match_parent"
+            android:layout_height="200dp"/>
+
+        <TextView
+            android:id="@+id/beer_detail_title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:gravity="center"
+            android:textSize="24dp"
+            android:textStyle="bold"
+            android:textColor="@color/design_default_color_primary"
+            android:text="@string/placeholder_beertitle"/>
+
+        <TextView
+            android:id="@+id/beer_detail_shortdesc"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="10dp"
+            android:gravity="center"
+            android:textStyle="bold"
+            android:text="@string/placeholder_tagline"/>
+
+        <TextView
+            android:id="@+id/beer_detail_firstbrewed"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="20dp"
+            android:drawablePadding="8dp"
+            android:gravity="center_vertical"
+            app:drawableStartCompat="@drawable/ic_firstbrewed"
+            app:drawableTint="@color/design_default_color_primary"
+            android:text="@string/placeholder_firstbrewed"/>
+
+        <TextView
+            android:id="@+id/beer_detail_desc"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:layout_marginBottom="50dp"
+            android:gravity="center"
+            android:text="@string/placeholder_description"/>
+
+    </LinearLayout>
+
+</androidx.core.widget.NestedScrollView>

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

@@ -28,7 +28,7 @@
         android:ellipsize="end"
         android:lines="1"
         android:maxLines="1"
-        android:text="Beer name"
+        android:text="@string/placeholder_beertitle"
         android:textSize="20sp"
         android:textStyle="bold"
         app:layout_constraintBottom_toTopOf="@+id/beer_item_descr"
@@ -45,7 +45,7 @@
         android:layout_marginBottom="16dp"
         android:ellipsize="end"
         android:maxLines="3"
-        android:text="Beer description lorem ipsum dolor sit amet"
+        android:text="@string/placeholder_tagline"
         app:layout_constraintBottom_toBottomOf="@+id/beer_item_pic"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/beer_item_pic"

app/src/main/res/values/strings.xml

@@ -6,4 +6,10 @@
 
     <!-- Beers detail -->
 
+    <!-- Generic placeholders -->
+    <string name="placeholder_beertitle">Beer name</string>
+    <string name="placeholder_tagline">Lorem ipsum dolor sit amet</string>
+    <string name="placeholder_firstbrewed">00/0000</string>
+    <string name="placeholder_description">Lorem ipsum dolor sit amet, consectetur adipiscing elit. In tristique consectetur felis vel pretium. Praesent tincidunt vestibulum lacus, molestie rhoncus lacus fermentum vel. Morbi vel pulvinar sapien, sed ultrices arcu. Vivamus gravida nulla vel ex varius, vel consequat dolor tincidunt. Fusce maximus quis mi eget tristique. Aenean sed facilisis libero. Aliquam volutpat posuere fringilla. Praesent in lorem at elit ornare congue et quis quam. Maecenas tempus et purus ac rhoncus. Donec in pulvinar ex. Aliquam ac vehicula dolor. Nam vitae tortor id nibh congue sollicitudin id in nisi. Proin lorem eros, congue at euismod et, malesuada porta nunc. Proin laoreet massa ac mi lacinia, eget tincidunt odio vestibulum. Vestibulum fermentum nunc nunc, eget ultrices nisi tempor non. Curabitur lorem leo, fringilla et pellentesque a, pharetra id magna. </string>
+
 </resources>