Project cleanup; removed unused resources and test classes. Fixed memory leak bug in DataFetcher.kt

app/src/main/java/com/denizd/substitutionplan/adapters/ColourAdapter.kt

@@ -13,14 +13,14 @@ import com.google.android.material.card.MaterialCardView
 
 internal class ColourAdapter(private var mColours: List<Colour>, onClickListener: OnClickListener) : RecyclerView.Adapter<ColourAdapter.ColourViewHolder>() {
 
-    val mOnClickListener = onClickListener
+    private val mOnClickListener = onClickListener
 
     class ColourViewHolder(view: View, clickListener: OnClickListener) : RecyclerView.ViewHolder(view), View.OnClickListener {
         val title: TextView = view.findViewById(R.id.item_text)
         var image: ImageView = view.findViewById(R.id.item_image)
         val titleNoLang: TextView = view.findViewById(R.id.item_text_no_lang)
         val cardView: MaterialCardView = view.findViewById(R.id.cardView)
-        val mClickListener = clickListener
+        private val mClickListener = clickListener
         init { view.setOnClickListener(this) }
 
         override fun onClick(v: View?) { mClickListener.onClick(adapterPosition, title.text.toString(), titleNoLang.text.toString()) }
@@ -59,12 +59,7 @@ internal class ColourAdapter(private var mColours: List<Colour>, onClickListener
 
     override fun getItemCount(): Int = mColours.size
 
-    fun setColours(colours: List<Colour>) {
-        mColours = colours
-        notifyDataSetChanged()
-    }
-
-    public interface OnClickListener {
+    internal interface OnClickListener {
         fun onClick(position: Int, title: String, titleNoLang: String)
     }
 }

app/src/main/java/com/denizd/substitutionplan/adapters/FoodAdapter.kt

@@ -26,10 +26,6 @@ internal class FoodAdapter(food: ArrayList<Food>) : RecyclerView.Adapter<FoodAda
         return CardViewHolder(v)
     }
 
-    fun getFoodAt(i: Int): Food {
-        return mFood!![i]
-    }
-
     override fun onBindViewHolder(holder: CardViewHolder, position: Int) {
         val currentItem = mFood!![position]
 

app/src/main/java/com/denizd/substitutionplan/adapters/RingtoneAdapter.kt

@@ -45,12 +45,7 @@ internal class RingtoneAdapter(private var _ringtones: List<Ringtone>, onClickLi
 
     override fun getItemCount(): Int = _ringtones.size
 
-    fun setRingtones(ringtones: List<Ringtone>) {
-        _ringtones = ringtones
-        notifyDataSetChanged()
-    }
-
-    public interface OnClickListener {
+    internal interface OnClickListener {
         fun onRingtoneClick(position: Int, name: String, uri: String)
     }
 }