Functionality to search songs is operational. Next step is to work on the styling of the searchbar. Currently it is barely visible due to the color and the sizing #44

app/src/main/java/com/example/mear/activities/SongViewActivity.kt

@@ -5,6 +5,7 @@ import android.os.Bundle
 import android.support.annotation.RequiresApi
 import android.support.v7.widget.LinearLayoutManager
 import android.view.View
+import android.widget.SearchView
 
 import java.lang.Exception
 import kotlinx.android.synthetic.main.activity_song_view.*
@@ -14,6 +15,9 @@ import com.example.mear.adapters.RecyclerAdapter
 import com.example.mear.models.TrackItems
 import com.example.mear.R
 import com.example.mear.repositories.TrackRepository
+import android.R as RDroid
+
+
 
 class SongViewActivity : BaseServiceActivity() {
 
@@ -33,6 +37,7 @@ class SongViewActivity : BaseServiceActivity() {
             window.statusBarColor = resources.getColor(R.color.track_seek)
             doBindService()
             initializeAdapter()
+            initializeSongSearchListener()
         }
         catch (ex: Exception) {
             var exMsg = ex.message
@@ -47,6 +52,10 @@ class SongViewActivity : BaseServiceActivity() {
     }
 
 
+    fun playTrack(trackItems: TrackItems) {
+        val id = trackItems.id
+        musicService!!.playTrack(id)
+    }
 
     @RequiresApi(Build.VERSION_CODES.N)
     private fun initializeAdapter() {
@@ -58,10 +67,9 @@ class SongViewActivity : BaseServiceActivity() {
 
             adapter = RecyclerAdapter({trackItem: TrackItems -> playTrack(trackItem)}, trackListItems)
             adapter.configureActivity(this)
+
             trackList.adapter = adapter
-            trackList.setOnClickListener {
-                val temp = "dddd"
-            }
+
             trackList.setHasFixedSize(true)
             trackList.setItemViewCacheSize(20);
             trackList.setDrawingCacheEnabled(true);
@@ -94,8 +102,23 @@ class SongViewActivity : BaseServiceActivity() {
         return trackItems!!
     }
 
-    fun playTrack(trackItems: TrackItems) {
-        val id = trackItems.id
-        musicService!!.playTrack(id)
+    private fun initializeSongSearchListener() {
+        songSearch.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
+            override fun onQueryTextSubmit(query: String): Boolean {
+                try {
+                    adapter.filter.filter(query)
+                }
+                catch (ex: Exception) {
+                    val exMsg = ex.message
+                }
+
+                return false
+            }
+
+            override fun onQueryTextChange(newText: String): Boolean {
+                // TODO: Implement text change
+                return false
+            }
+        })
     }
 }

app/src/main/java/com/example/mear/adapters/RecyclerAdapter.kt

@@ -4,6 +4,8 @@ import android.app.Activity
 import android.support.v7.widget.RecyclerView
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Filter
+import android.widget.Filterable
 
 import java.lang.Exception
 import kotlinx.android.synthetic.main.fragment_song_view.view.*
@@ -16,26 +18,62 @@ import com.example.mear.models.TrackItems
 import com.example.mear.R
 
 
-class RecyclerAdapter(val mOnClickListenerI: (TrackItems) -> Unit ,  private  val trackItemsSourceInit: ArrayList<TrackItems>) :
-                                                RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+class RecyclerAdapter(val mOnClickListenerI: (TrackItems) -> Unit,
+                      var trackItemsSourceInit: ArrayList<TrackItems>):
+                      RecyclerView.Adapter<RecyclerAdapter.TrackItemsHolder>(), Filterable {
 
-    open interface trackItemClickListener{
-        fun onClick(view: View)
+    var allTrackItems = trackItemsSourceInit
+    val adp = this
+
+    override fun onBindViewHolder(holder: TrackItemsHolder, position: Int) {
+        val itemPhoto = trackItemsSourceInit!![position]
+        holder.bindTrackItems(itemPhoto, mOnClickListenerI)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, position: Int): TrackItemsHolder {
+        val inflatedView = parent.inflate(R.layout.fragment_song_view, false)
+        return TrackItemsHolder(inflatedView)
+    }
+
+    override fun getFilter(): Filter {
+        return object: Filter() {
+            override fun performFiltering(constraint: CharSequence?): FilterResults {
+                val fr = FilterResults()
+
+                val sortedList = mutableListOf<TrackItems>()
+
+                for (trackItm in allTrackItems) {
+                    if (trackItm.artistTitle.contains(constraint!!, true) ||
+                            trackItm.trackTitle.contains(constraint!!, true)) {
+                        sortedList.add(trackItm)
+                    }
+                }
+
+                fr.count = sortedList.size
+                fr.values = sortedList
+
+                return fr
+            }
+
+            override fun publishResults(constraint: CharSequence?, results: FilterResults?) {
+                try {
+                    val itms = results!!.values as ArrayList<TrackItems>
+
+                    adp.trackItemsSourceInit = itms
+                }
+                catch (ex: Exception) {
+                    val exMsg = ex.message
+                }
+
+                adp.notifyDataSetChanged()
+            }
+        }
     }
 
     override fun getItemCount(): Int {
         return trackItemsSourceInit!!.size
     }
 
-    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
-        val itemPhoto = trackItemsSourceInit!![position]
-        (holder as TrackItemsHolder).bindTrackItems(itemPhoto, mOnClickListenerI)
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, position: Int): RecyclerView.ViewHolder {
-        val inflatedView = parent.inflate(R.layout.fragment_song_view, false)
-        return TrackItemsHolder(inflatedView)
-    }
 
     fun configureActivity(actvity: Activity) {
     }
@@ -48,27 +86,27 @@ class RecyclerAdapter(val mOnClickListenerI: (TrackItems) -> Unit ,  private  va
         private val imgHeight = 90
         private var mBound = false
 
-
-
         fun bindTrackItems(trackItems: TrackItems, clickList: (TrackItems) -> Unit) {
             try {
                 var context = view.context
+
                 this.trackItem = trackItems
+
                 view.trackTitle.text = trackItem!!.trackTitle
                 view.trackArtist.text = trackItem!!.artistTitle
+
                 val id = trackItems.id
 
                 var trackCoverPath = "${context.filesDir}/${Filenames.TRACK_COVERS}"
                 trackCoverPath = "${trackCoverPath}${id}.bmp"
+
                 Picasso.get().load(trackCoverPath).into(view.trackCover)
+
                 view.setOnClickListener { clickList(trackItem!!) }
             }
             catch (ex:Exception) {
                 val exMsg = ex.message
             }
         }
-
-        companion object {
-        }
     }
 }

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

@@ -14,6 +14,15 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <SearchView
+        android:id="@+id/songSearch"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        app:layout_constraintBottom_toTopOf="@+id/trackList"
+        app:layout_constraintTop_toBottomOf="@+id/space2"
+        tools:layout_editor_absoluteX="8dp" />
+
     <android.support.v7.widget.RecyclerView
         android:id="@+id/trackList"
         marginTop="?android:attr/actionBarSize"