add download fragment

app/src/main/java/com/github/libretube/adapters/DownloadsAdapter.kt

@@ -0,0 +1,38 @@
+package com.github.libretube.adapters
+
+import android.annotation.SuppressLint
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.github.libretube.databinding.DownloadedMediaRowBinding
+import java.io.File
+
+class DownloadsAdapter(
+    private val files: List<File>
+) : RecyclerView.Adapter<DownloadsViewHolder>() {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DownloadsViewHolder {
+        val binding = DownloadedMediaRowBinding.inflate(
+            LayoutInflater.from(parent.context),
+            parent,
+            false
+        )
+        return DownloadsViewHolder(binding)
+    }
+
+    @SuppressLint("SetTextI18n")
+    override fun onBindViewHolder(holder: DownloadsViewHolder, position: Int) {
+        val file = files[position]
+        holder.binding.apply {
+            fileName.text = file.name
+            fileSize.text = "${file.length() / (1024 * 1024)} MiB"
+        }
+    }
+
+    override fun getItemCount(): Int {
+        return files.size
+    }
+}
+
+class DownloadsViewHolder(
+    val binding: DownloadedMediaRowBinding
+) : RecyclerView.ViewHolder(binding.root)

app/src/main/java/com/github/libretube/fragments/DownloadsFragment.kt

@@ -0,0 +1,38 @@
+package layout
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.github.libretube.adapters.DownloadsAdapter
+import com.github.libretube.databinding.FragmentDownloadsBinding
+import com.github.libretube.extensions.BaseFragment
+import java.io.File
+
+class DownloadsFragment : BaseFragment() {
+    private lateinit var binding: FragmentDownloadsBinding
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = FragmentDownloadsBinding.inflate(layoutInflater)
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val downloadDir = File(
+            context?.getExternalFilesDir(null),
+            "video"
+        )
+
+        binding.downloads.layoutManager = LinearLayoutManager(context)
+        binding.downloads.adapter = DownloadsAdapter(
+            downloadDir.listFiles()?.toList() ?: listOf()
+        )
+    }
+}

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

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="horizontal"
+    android:paddingHorizontal="10dp">
+
+    <TextView
+        android:id="@+id/fileName"
+        android:layout_width="0dp"
+        android:layout_weight="1"
+        android:layout_height="wrap_content" />
+
+    <TextView
+        android:id="@+id/fileSize"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+</LinearLayout>

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

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/downloads"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+</LinearLayout>

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

@@ -73,6 +73,32 @@
 
                 </LinearLayout>
 
+                <LinearLayout
+                    android:id="@+id/downloads"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginBottom="10dp"
+                    android:background="?attr/selectableItemBackground"
+                    android:orientation="horizontal"
+                    android:padding="10dp">
+
+                    <ImageView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_gravity="center"
+                        android:layout_marginStart="10dp"
+                        android:src="@drawable/ic_download" />
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="15dp"
+                        android:text="@string/downloads"
+                        android:textSize="18sp"
+                        android:textStyle="bold" />
+
+                </LinearLayout>
+
                 <RelativeLayout
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"