From cda69227eb08ed7a7df0283a84bc2faed007b3cd Mon Sep 17 00:00:00 2001
From: Me on Windows <fml@windows.invalid>
Date: Sat, 3 Jul 2021 23:04:11 +0000
Subject: [PATCH] Implement a PoC of the recycler view

---
 QuickPlay/Interfaces.cs                   |  6 +----
 QuickPlay/LayoutStrategies.cs             | 21 +++++++++++++++++
 QuickPlay/MainActivity.cs                 |  4 ++--
 QuickPlay/QuickPlay.csproj                |  6 +++++
 QuickPlay/Resources/Resource.designer.cs  | 24 +++++++++++--------
 QuickPlay/Resources/layout/songLayout.xml | 28 +++++++++++++++++++++++
 QuickPlay/SongRecycler.cs                 | 15 ++++++++----
 7 files changed, 84 insertions(+), 20 deletions(-)
 create mode 100644 QuickPlay/LayoutStrategies.cs
 create mode 100644 QuickPlay/Resources/layout/songLayout.xml

diff --git a/QuickPlay/Interfaces.cs b/QuickPlay/Interfaces.cs
index 9b35594..3281365 100644
--- a/QuickPlay/Interfaces.cs
+++ b/QuickPlay/Interfaces.cs
@@ -49,13 +49,9 @@ namespace QuickPlay
         string Identifier { get; }
         PlayableMetadata Metadata { get; }
     }
-    interface ILayout
-    {
-        // TODO
-    }
     interface ILayoutStrategy
     {
-        ILayout LayOut(ICollection<IPlayable> playables);
+        List<IPlayable> LayOut(ICollection<IPlayable> playables);
     }
 
     public class CannotConnectException: Exception
diff --git a/QuickPlay/LayoutStrategies.cs b/QuickPlay/LayoutStrategies.cs
new file mode 100644
index 0000000..9d9d8b4
--- /dev/null
+++ b/QuickPlay/LayoutStrategies.cs
@@ -0,0 +1,21 @@
+using Android.App;
+using Android.Content;
+using Android.OS;
+using Android.Runtime;
+using Android.Views;
+using Android.Widget;
+using System;
+using System.Collections.Generic;
+
+namespace QuickPlay
+{
+    class LexicographicLayoutStrategy : ILayoutStrategy
+    {
+        public List<IPlayable> LayOut(ICollection<IPlayable> playables)
+        {
+            List<IPlayable> list = new List<IPlayable>(playables);
+            list.Sort((IPlayable x, IPlayable y) => x.Identifier.CompareTo(y.Identifier));
+            return list;
+        }
+    }
+}
\ No newline at end of file
diff --git a/QuickPlay/MainActivity.cs b/QuickPlay/MainActivity.cs
index 0d1bc87..0670541 100644
--- a/QuickPlay/MainActivity.cs
+++ b/QuickPlay/MainActivity.cs
@@ -44,7 +44,6 @@ namespace QuickPlay
             } catch (CannotConnectException e)
             {
                 //TODO: View a toast with details and change some colors?
-                Console.WriteLine("This is bad.");
                 var t = Toast.MakeText(this, e.Message + ": " + e.InnerException.Message ?? "", ToastLength.Long);
                 t.Show();
             }
@@ -69,7 +68,8 @@ namespace QuickPlay
         private void InitializeRecyclerView()
         {
             recyclerView = FindViewById<Android.Support.V7.Widget.RecyclerView>(Resource.Id.recyclerView1);
-            var adapter = new SongRecyclerAdapter(currentPlayer);
+            var layoutStrategy = new LexicographicLayoutStrategy();
+            var adapter = new SongRecyclerAdapter(currentPlayer, layoutStrategy);
             recyclerView.SetAdapter(adapter);
             var layoutManager = new GridLayoutManager(this, 2, GridLayoutManager.Vertical, false);
             recyclerView.SetLayoutManager(layoutManager);
diff --git a/QuickPlay/QuickPlay.csproj b/QuickPlay/QuickPlay.csproj
index bfdf3c7..2f7d5e7 100644
--- a/QuickPlay/QuickPlay.csproj
+++ b/QuickPlay/QuickPlay.csproj
@@ -71,6 +71,7 @@
     <Compile Include="Configuration.cs" />
     <Compile Include="IniParser.cs" />
     <Compile Include="Interfaces.cs" />
+    <Compile Include="LayoutStrategies.cs" />
     <Compile Include="MpdMonitorService.cs" />
     <Compile Include="MainActivity.cs" />
     <Compile Include="MpdPlayer.cs" />
@@ -221,6 +222,11 @@
   <ItemGroup>
     <AndroidResource Include="Resources\layout\commonTopBar.axml" />
   </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\layout\songLayout.xml">
+      <SubType>Designer</SubType>
+    </AndroidResource>
+  </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
     Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/QuickPlay/Resources/Resource.designer.cs b/QuickPlay/Resources/Resource.designer.cs
index 14a89e5..ca89cf5 100644
--- a/QuickPlay/Resources/Resource.designer.cs
+++ b/QuickPlay/Resources/Resource.designer.cs
@@ -3091,8 +3091,8 @@ namespace QuickPlay
 			// aapt resource value: 0x7f0900be
 			public const int action_divider = 2131296446;
 			
-			// aapt resource value: 0x7f0900c4
-			public const int action_edit = 2131296452;
+			// aapt resource value: 0x7f0900c5
+			public const int action_edit = 2131296453;
 			
 			// aapt resource value: 0x7f0900b4
 			public const int action_image = 2131296436;
@@ -3112,8 +3112,8 @@ namespace QuickPlay
 			// aapt resource value: 0x7f09006b
 			public const int action_mode_close_button = 2131296363;
 			
-			// aapt resource value: 0x7f0900c3
-			public const int action_settings = 2131296451;
+			// aapt resource value: 0x7f0900c4
+			public const int action_settings = 2131296452;
 			
 			// aapt resource value: 0x7f0900b5
 			public const int action_text = 2131296437;
@@ -3331,8 +3331,8 @@ namespace QuickPlay
 			// aapt resource value: 0x7f090070
 			public const int list_item = 2131296368;
 			
-			// aapt resource value: 0x7f0900c2
-			public const int masked = 2131296450;
+			// aapt resource value: 0x7f0900c3
+			public const int masked = 2131296451;
 			
 			// aapt resource value: 0x7f09009c
 			public const int message = 2131296412;
@@ -3502,6 +3502,9 @@ namespace QuickPlay
 			// aapt resource value: 0x7f09004b
 			public const int snapMargins = 2131296331;
 			
+			// aapt resource value: 0x7f0900c1
+			public const int songName = 2131296449;
+			
 			// aapt resource value: 0x7f090073
 			public const int spacer = 2131296371;
 			
@@ -3625,8 +3628,8 @@ namespace QuickPlay
 			// aapt resource value: 0x7f09001b
 			public const int view_offset_helper = 2131296283;
 			
-			// aapt resource value: 0x7f0900c1
-			public const int visible = 2131296449;
+			// aapt resource value: 0x7f0900c2
+			public const int visible = 2131296450;
 			
 			// aapt resource value: 0x7f090043
 			public const int withText = 2131296323;
@@ -3896,7 +3899,10 @@ namespace QuickPlay
 			public const int select_dialog_singlechoice_material = 2130968630;
 			
 			// aapt resource value: 0x7f040037
-			public const int support_simple_spinner_dropdown_item = 2130968631;
+			public const int songLayout = 2130968631;
+			
+			// aapt resource value: 0x7f040038
+			public const int support_simple_spinner_dropdown_item = 2130968632;
 			
 			static Layout()
 			{
diff --git a/QuickPlay/Resources/layout/songLayout.xml b/QuickPlay/Resources/layout/songLayout.xml
new file mode 100644
index 0000000..028a9e9
--- /dev/null
+++ b/QuickPlay/Resources/layout/songLayout.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    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:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+    <!-- I am going to assume that the match_parent width respects the two-column layout. -->
+    <!-- The CardView just adds some beauty -->
+    <android.support.v7.widget.CardView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:cardElevation="4dp"
+        app:cardUseCompatPadding="true"
+        app:cardCornerRadius="5dp"
+    >
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_gravity="center"
+            android:text="Song Name"
+            android:id="@+id/songName"
+         />
+    </android.support.v7.widget.CardView>
+
+</FrameLayout>
diff --git a/QuickPlay/SongRecycler.cs b/QuickPlay/SongRecycler.cs
index e0a0927..39fbd88 100644
--- a/QuickPlay/SongRecycler.cs
+++ b/QuickPlay/SongRecycler.cs
@@ -14,9 +14,11 @@ namespace QuickPlay
     class SongRecyclerAdapter : Android.Support.V7.Widget.RecyclerView.Adapter
     {
         IPlayer player;
-        public SongRecyclerAdapter(IPlayer player)
+        ILayoutStrategy layoutStrategy;
+        public SongRecyclerAdapter(IPlayer player, ILayoutStrategy layoutStrategy)
         {
             this.player = player;
+            this.layoutStrategy = layoutStrategy;
         }
         public override int ItemCount
         {
@@ -27,18 +29,23 @@ namespace QuickPlay
         }
         public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
         {
-            throw new NotImplementedException();
+            // I admit I have little idea what I am doing.
+            View itemView = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.songLayout, parent, false);
+            return new SongRecyclerViewHolder(itemView);
         }
         public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
         {
-            throw new NotImplementedException();
+            SongRecyclerViewHolder vh = (SongRecyclerViewHolder)holder;
+            List<IPlayable> layout = layoutStrategy.LayOut(player.Songs.Values);
+            vh.SongName.Text = layout[position].Identifier;
         }
     }
     class SongRecyclerViewHolder : Android.Support.V7.Widget.RecyclerView.ViewHolder
     {
+        public TextView SongName { get; private set; }
         public SongRecyclerViewHolder(View itemView) : base(itemView)
         {
-            throw new NotImplementedException();
+            SongName = itemView.FindViewById<TextView>(Resource.Id.songName);
         }
     }
 }
\ No newline at end of file