display the checklist items on the recycler view

app/src/main/kotlin/com/simplemobiletools/notes/pro/adapters/ChecklistAdapter.kt

@@ -0,0 +1,58 @@
+package com.simplemobiletools.notes.pro.adapters
+
+import android.view.Menu
+import android.view.View
+import android.view.ViewGroup
+import com.simplemobiletools.commons.activities.BaseSimpleActivity
+import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
+import com.simplemobiletools.commons.interfaces.RefreshRecyclerViewListener
+import com.simplemobiletools.commons.views.MyRecyclerView
+import com.simplemobiletools.notes.pro.R
+import com.simplemobiletools.notes.pro.models.ChecklistItem
+import kotlinx.android.synthetic.main.item_checklist.view.*
+import java.util.*
+
+class ChecklistAdapter(activity: BaseSimpleActivity, var items: ArrayList<ChecklistItem>, val listener: RefreshRecyclerViewListener?,
+                       recyclerView: MyRecyclerView, itemClick: (Any) -> Unit) : MyRecyclerViewAdapter(activity, recyclerView, null, itemClick) {
+
+    init {
+        setupDragListener(true)
+    }
+
+    override fun getActionMenuId() = R.menu.cab_delete_only
+
+    override fun actionItemPressed(id: Int) {}
+
+    override fun getSelectableItemCount() = items.size
+
+    override fun getIsItemSelectable(position: Int) = true
+
+    override fun getItemSelectionKey(position: Int) = items.getOrNull(position)?.id
+
+    override fun getItemKeyPosition(key: Int) = items.indexOfFirst { it.id == key }
+
+    override fun prepareActionMode(menu: Menu) {}
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = createViewHolder(R.layout.item_checklist, parent)
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val item = items[position]
+        holder.bindView(item, true, true) { itemView, layoutPosition ->
+            setupView(itemView, item)
+        }
+        bindViewHolder(holder)
+    }
+
+    override fun getItemCount() = items.size
+
+    private fun setupView(view: View, checklistItem: ChecklistItem) {
+        val isSelected = selectedKeys.contains(checklistItem.id)
+        view.apply {
+            checklist_title.apply {
+                text = checklistItem.title
+                setTextColor(textColor)
+            }
+            checklist_holder.isSelected = isSelected
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/notes/pro/fragments/ChecklistFragment.kt

@@ -6,8 +6,10 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.commons.interfaces.RefreshRecyclerViewListener
 import com.simplemobiletools.notes.pro.R
 import com.simplemobiletools.notes.pro.activities.SimpleActivity
+import com.simplemobiletools.notes.pro.adapters.ChecklistAdapter
 import com.simplemobiletools.notes.pro.dialogs.NewChecklistItemDialog
 import com.simplemobiletools.notes.pro.helpers.NOTE_ID
 import com.simplemobiletools.notes.pro.helpers.NotesHelper
@@ -15,7 +17,7 @@ import com.simplemobiletools.notes.pro.models.ChecklistItem
 import com.simplemobiletools.notes.pro.models.Note
 import kotlinx.android.synthetic.main.fragment_checklist.view.*
 
-class ChecklistFragment : NoteFragment() {
+class ChecklistFragment : NoteFragment(), RefreshRecyclerViewListener {
     private var noteId = 0L
     private var note: Note? = null
     private var items = ArrayList<ChecklistItem>()
@@ -53,10 +55,24 @@ class ChecklistFragment : NoteFragment() {
             background.applyColorFilter(context!!.getAdjustedPrimaryColor())
             setOnClickListener {
                 NewChecklistItemDialog(activity as SimpleActivity) {
-                    val checklistItem = ChecklistItem(it, false)
+                    val currentMaxId = items.maxBy { it.id }?.id ?: 0
+                    val checklistItem = ChecklistItem(currentMaxId + 1, it, false)
                     items.add(checklistItem)
+                    setupAdapter()
                 }
             }
         }
+        setupAdapter()
+    }
+
+    private fun setupAdapter() {
+        ChecklistAdapter(activity as SimpleActivity, items, this, view.checklist_list) {
+
+        }.apply {
+            view.checklist_list.adapter = this
+        }
+    }
+
+    override fun refreshItems() {
     }
 }

app/src/main/kotlin/com/simplemobiletools/notes/pro/models/ChecklistItem.kt

@@ -1,3 +1,3 @@
 package com.simplemobiletools.notes.pro.models
 
-data class ChecklistItem(val title: String, val isDone: Boolean)
+data class ChecklistItem(val id: Int, val title: String, val isDone: Boolean)

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

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/checklist_holder"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="?attr/selectableItemBackground"
+    android:clickable="true"
+    android:focusable="true"
+    android:foreground="@drawable/selector"
+    android:padding="@dimen/activity_margin">
+
+    <com.simplemobiletools.commons.views.MyTextView
+        android:id="@+id/checklist_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_marginLeft="@dimen/medium_margin"
+        android:layout_marginTop="@dimen/medium_margin"
+        android:layout_marginRight="@dimen/medium_margin"/>
+
+</RelativeLayout>