v0.6.5

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

@@ -0,0 +1,29 @@
+package com.looker.droidify.widget
+
+import android.util.SparseArray
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+
+abstract class EnumRecyclerAdapter<VT : Enum<VT>, VH : RecyclerView.ViewHolder> :
+    RecyclerView.Adapter<VH>() {
+    abstract val viewTypeClass: Class<VT>
+
+    private val names = SparseArray<String>()
+
+    private fun getViewType(viewType: Int): VT {
+        return java.lang.Enum.valueOf(viewTypeClass, names.get(viewType))
+    }
+
+    final override fun getItemViewType(position: Int): Int {
+        val enum = getItemEnumViewType(position)
+        names.put(enum.ordinal, enum.name)
+        return enum.ordinal
+    }
+
+    final override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): VH {
+        return onCreateViewHolder(parent, getViewType(viewType))
+    }
+
+    abstract fun getItemEnumViewType(position: Int): VT
+    abstract fun onCreateViewHolder(parent: ViewGroup, viewType: VT): VH
+}