implementing a Select All menu button at Recents

app/src/main/kotlin/com/simplemobiletools/contacts/adapters/RecentCallsAdapter.kt

@@ -16,24 +16,30 @@ import java.util.*
 
 class RecentCallsAdapter(activity: SimpleActivity, var recentCalls: ArrayList<RecentCall>, recyclerView: MyRecyclerView, fastScroller: FastScroller,
                          itemClick: (Any) -> Unit) : MyRecyclerViewAdapter(activity, recyclerView, fastScroller, itemClick) {
-    val showPhoneNumbers = activity.config.showPhoneNumbers
+    private val showPhoneNumbers = activity.config.showPhoneNumbers
 
     init {
         setupDragListener(true)
     }
 
-    override fun getActionMenuId() = 0
+    override fun getActionMenuId() = R.menu.cab_recent_calls
 
     override fun prepareActionMode(menu: Menu) {}
 
     override fun prepareItemSelection(viewHolder: ViewHolder) {}
 
-    override fun markViewHolderSelection(select: Boolean, viewHolder: ViewHolder?) {}
+    override fun markViewHolderSelection(select: Boolean, viewHolder: ViewHolder?) {
+        viewHolder?.itemView?.recent_call_frame?.isSelected = select
+    }
 
     override fun actionItemPressed(id: Int) {
         if (selectedPositions.isEmpty()) {
             return
         }
+
+        when (id) {
+            R.id.cab_select_all -> selectAll()
+        }
     }
 
     override fun getSelectableItemCount() = recentCalls.size

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/cab_delete"
+        android:icon="@drawable/ic_delete"
+        android:title="@string/delete"
+        app:showAsAction="ifRoom"/>
+    <item
+        android:id="@+id/cab_select_all"
+        android:icon="@drawable/ic_select_all"
+        android:title="@string/select_all"
+        app:showAsAction="ifRoom"/>
+</menu>