use recyclerview for episodes in media fragment

closes #3

app/src/main/java/org/mosad/teapod/ui/MediaFragment.kt

@@ -6,18 +6,22 @@ import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.ArrayAdapter
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
 import kotlinx.android.synthetic.main.fragment_media.*
 import org.mosad.teapod.MainActivity
 import org.mosad.teapod.R
 import org.mosad.teapod.util.DataTypes.MediaType
+import org.mosad.teapod.util.EpisodesAdapter
 import org.mosad.teapod.util.GUIMedia
 import org.mosad.teapod.util.StreamMedia
 
 class MediaFragment(private val guiMedia: GUIMedia, private val streamMedia: StreamMedia) : Fragment() {
 
-    private lateinit var adapterEpisodes: ArrayAdapter<String>
+    private lateinit var adapterRecEpisodes: EpisodesAdapter
+    private lateinit var viewManager: RecyclerView.LayoutManager
+
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_media, container, false)
@@ -37,11 +41,14 @@ class MediaFragment(private val guiMedia: GUIMedia, private val streamMedia: Str
                 "${guiMedia.title} - Ep. ${index + 1}"
             }
 
-            adapterEpisodes = ArrayAdapter(requireContext(), android.R.layout.simple_list_item_1, episodes)
-            list_episodes.adapter = adapterEpisodes
+
+            adapterRecEpisodes = EpisodesAdapter(episodes)
+            viewManager = LinearLayoutManager(context)
+            recycler_episodes.layoutManager = viewManager
+            recycler_episodes.adapter = adapterRecEpisodes
 
         } else if (streamMedia.type == MediaType.MOVIE) {
-            list_episodes.visibility = View.GONE
+            recycler_episodes.visibility = View.GONE
         }
 
 
@@ -55,8 +62,11 @@ class MediaFragment(private val guiMedia: GUIMedia, private val streamMedia: Str
             onClickButtonPlay()
         }
 
-        list_episodes.setOnItemClickListener { _, _, position, _ ->
-            playStream(streamMedia.streams[position])
+        // set onItemClick only in adapter is initialized
+        if (this::adapterRecEpisodes.isInitialized) {
+            adapterRecEpisodes.onItemClick = { item, position ->
+                playStream(streamMedia.streams[position])
+            }
         }
     }
 

app/src/main/java/org/mosad/teapod/util/DataTypes.kt

@@ -8,6 +8,7 @@ class DataTypes {
     }
 }
 
+// TODO rework: add type, episodes list with episode title, if type == MOVIE the first episode will be the movie stream
 data class GUIMedia(val title: String, val posterLink: String, val shortDesc : String, val link: String) {
     override fun toString(): String {
         return title

app/src/main/java/org/mosad/teapod/util/EpisodesAdapter.kt

@@ -0,0 +1,35 @@
+package org.mosad.teapod.util
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import kotlinx.android.synthetic.main.component_episode.view.*
+import org.mosad.teapod.R
+
+class EpisodesAdapter(private val data: List<String>) : RecyclerView.Adapter<EpisodesAdapter.MyViewHolder>() {
+
+    var onItemClick: ((String, Int) -> Unit)? = null
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.component_episode, parent, false)
+
+        return MyViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
+        holder.view .text_episode_title.text = data[position]
+    }
+
+    override fun getItemCount(): Int {
+        return data.size
+    }
+
+    inner class MyViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
+        init {
+            view.setOnClickListener {
+                onItemClick?.invoke(data[adapterPosition], adapterPosition)
+            }
+        }
+    }
+}