v0.6.5

app/src/main/kotlin/com/looker/droidify/widget/StableRecyclerAdapter.kt

@@ -0,0 +1,28 @@
+package com.looker.droidify.widget
+
+import androidx.recyclerview.widget.RecyclerView
+
+abstract class StableRecyclerAdapter<VT : Enum<VT>, VH : RecyclerView.ViewHolder> :
+    EnumRecyclerAdapter<VT, VH>() {
+    private var nextId = 1L
+    private val descriptorToId = mutableMapOf<String, Long>()
+
+    init {
+        super.setHasStableIds(true)
+    }
+
+    final override fun setHasStableIds(hasStableIds: Boolean) {
+        throw UnsupportedOperationException()
+    }
+
+    override fun getItemId(position: Int): Long {
+        val descriptor = getItemDescriptor(position)
+        return descriptorToId[descriptor] ?: run {
+            val id = nextId++
+            descriptorToId[descriptor] = id
+            id
+        }
+    }
+
+    abstract fun getItemDescriptor(position: Int): String
+}