adding an adapter helper interface

build.gradle

@@ -32,7 +32,7 @@ ext {
     propMinSdkVersion = 16
     propTargetSdkVersion = propCompileSdkVersion
     propVersionCode = 1
-    propVersionName = '2.38.6'
+    propVersionName = '2.38.7'
     kotlin_version = '1.1.51'
     support_libs = '27.0.0'
 }

commons/src/main/kotlin/com/simplemobiletools/commons/interfaces/MyAdapterListener.kt

@@ -0,0 +1,9 @@
+package com.simplemobiletools.commons.interfaces
+
+import java.util.*
+
+interface MyAdapterListener {
+    fun toggleItemSelectionAdapter(select: Boolean, position: Int)
+
+    fun getSelectedPositions(): HashSet<Int>
+}