Ringtones may be customised; settings intent for Oreo+, custom solution otherwise

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

@@ -0,0 +1,49 @@
+package com.denizd.substitutionplan
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.core.content.ContextCompat
+import androidx.recyclerview.widget.RecyclerView
+import com.google.android.material.card.MaterialCardView
+
+class RingtoneAdapter(private var _ringtones: List<Ringtone>, onClickListener: OnClickListener) : RecyclerView.Adapter<RingtoneAdapter.RingtoneViewHolder>() {
+
+    val _onClickListener = onClickListener
+
+    class RingtoneViewHolder(view: View, clickListener: OnClickListener) : RecyclerView.ViewHolder(view), View.OnClickListener {
+        val name: TextView = view.findViewById(R.id.item_text)
+        val uri: TextView = view.findViewById(R.id.item_text_no_lang)
+        val cardView: MaterialCardView = view.findViewById(R.id.cardView)
+        val _clickListener = clickListener
+        init { view.setOnClickListener(this) }
+
+        override fun onClick(v: View?) { _clickListener.onRingtoneClick(adapterPosition, name.text.toString(), uri.text.toString()) }
+
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RingtoneViewHolder {
+        val v = LayoutInflater.from(parent.context).inflate(R.layout.list_item, parent, false)
+        return RingtoneViewHolder(v, _onClickListener)
+    }
+
+    override fun onBindViewHolder(holder: RingtoneViewHolder, position: Int) {
+        val currentItem = _ringtones[position]
+
+        holder.name.text = currentItem.name
+        holder.uri.text = currentItem.uri
+        holder.cardView.setCardBackgroundColor(ContextCompat.getColor(holder.cardView.context, R.color.colorBackground))
+    }
+
+    override fun getItemCount(): Int = _ringtones.size
+
+    fun setRingtones(ringtones: List<Ringtone>) {
+        _ringtones = ringtones
+        notifyDataSetChanged()
+    }
+
+    public interface OnClickListener {
+        fun onRingtoneClick(position: Int, name: String, uri: String)
+    }
+}