show the fetched artists on the list

app/src/main/kotlin/com/simplemobiletools/musicplayer/adapters/ArtistsAdapter.kt

@@ -0,0 +1,60 @@
+package com.simplemobiletools.musicplayer.adapters
+
+import android.view.Menu
+import android.view.View
+import android.view.ViewGroup
+import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
+import com.simplemobiletools.commons.views.MyRecyclerView
+import com.simplemobiletools.musicplayer.R
+import com.simplemobiletools.musicplayer.activities.SimpleActivity
+import com.simplemobiletools.musicplayer.models.Artist
+import kotlinx.android.synthetic.main.item_artist.view.*
+import java.util.*
+
+class ArtistsAdapter(activity: SimpleActivity, val artists: ArrayList<Artist>, recyclerView: MyRecyclerView, itemClick: (Any) -> Unit) :
+        MyRecyclerViewAdapter(activity, recyclerView, null, itemClick) {
+
+    init {
+        setupDragListener(true)
+    }
+
+    override fun getActionMenuId() = R.menu.cab_artists
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = createViewHolder(R.layout.item_artist, parent)
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val artist = artists.getOrNull(position) ?: return
+        holder.bindView(artist, true, true) { itemView, layoutPosition ->
+            setupView(itemView, artist)
+        }
+        bindViewHolder(holder)
+    }
+
+    override fun getItemCount() = artists.size
+
+    override fun prepareActionMode(menu: Menu) {}
+
+    override fun actionItemPressed(id: Int) {}
+
+    override fun getSelectableItemCount() = artists.size
+
+    override fun getIsItemSelectable(position: Int) = true
+
+    override fun getItemSelectionKey(position: Int) = artists.getOrNull(position)?.id
+
+    override fun getItemKeyPosition(key: Int) = artists.indexOfFirst { it.id == key }
+
+    override fun onActionModeCreated() {}
+
+    override fun onActionModeDestroyed() {}
+
+    private fun getItemWithKey(key: Int): Artist? = artists.firstOrNull { it.id == key }
+
+    private fun setupView(view: View, artist: Artist) {
+        view.apply {
+            artist_frame?.isSelected = selectedKeys.contains(artist.id)
+            artist_title.text = artist.title
+            artist_title.setTextColor(textColor)
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/musicplayer/fragments/ArtistsFragment.kt

@@ -9,12 +9,18 @@ import com.simplemobiletools.commons.extensions.getStringValue
 import com.simplemobiletools.commons.extensions.showErrorToast
 import com.simplemobiletools.commons.helpers.ensureBackgroundThread
 import com.simplemobiletools.musicplayer.activities.SimpleActivity
+import com.simplemobiletools.musicplayer.adapters.ArtistsAdapter
 import com.simplemobiletools.musicplayer.models.Artist
+import kotlinx.android.synthetic.main.fragment_artists.view.*
 
 class ArtistsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerFragment(context, attributeSet) {
     override fun setupFragment(activity: SimpleActivity) {
-        getArtists(activity) {
+        getArtists(activity) { artists ->
+            ArtistsAdapter(activity, artists, artists_list) {
 
+            }.apply {
+                artists_list.adapter = this
+            }
         }
     }
 

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

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/artist_frame"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="?attr/selectableItemBackground"
+    android:clickable="true"
+    android:focusable="true"
+    android:foreground="@drawable/selector">
+
+    <RelativeLayout
+        android:id="@+id/artist_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="@dimen/activity_margin">
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/artist_title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:paddingLeft="@dimen/medium_margin"
+            android:paddingRight="@dimen/medium_margin"
+            android:text="@string/text_color"/>
+
+    </RelativeLayout>
+</FrameLayout>

app/src/main/res/menu/cab_artists.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu>
+
+</menu>