refactor: convert AdapterLayout modules from Java to Kotlin

Author: theJawnnybot

adapterflowlayout/src/main/java/com/commit451/adapterflowlayout/AdapterFlowLayout.java

@@ -0,0 +1,39 @@
+@file:Suppress("unused")
+
+package com.commit451.adapterflowlayout
+
+import android.content.Context
+import android.util.AttributeSet
+import androidx.annotation.Nullable
+import androidx.recyclerview.widget.RecyclerView
+import com.commit451.adapterlayout.AdapterLayoutDelegate
+import com.wefika.flowlayout.FlowLayout
+
+/**
+ * [FlowLayout] with [RecyclerView.Adapter] support.
+ */
+class AdapterFlowLayout : FlowLayout {
+
+    private var adapterLayoutDelegate: AdapterLayoutDelegate? = null
+
+    constructor(context: Context?) : super(context)
+
+    constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs)
+
+    constructor(context: Context?, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
+
+    @get:Nullable
+    var adapter: RecyclerView.Adapter<*>?
+        get() = adapterLayoutDelegate?.getAdapter()
+        set(value) {
+            if (adapterLayoutDelegate == null) {
+                adapterLayoutDelegate = AdapterLayoutDelegate(this)
+            }
+            adapterLayoutDelegate?.setAdapter(value)
+        }
+
+    @Nullable
+    fun getViewHolderAt(index: Int): RecyclerView.ViewHolder? {
+        return adapterLayoutDelegate?.getViewHolderAt(index)
+    }
+}

adapterflowlayout/src/main/java/com/commit451/adapterflowlayout/AdapterFlowLayout.kt

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+package com.commit451.adapterlayout
+
+import androidx.recyclerview.widget.RecyclerView
+
+/**
+ * Provides access to some of the public API of AdapterLayout in a way that will be available for any given
+ * AdapterLayout
+ */
+class AdapterLayout {
+    companion object {
+        /**
+         * Get the position in the AdapterLayout of the View holder.
+         * Use this instead of [RecyclerView.ViewHolder.getAdapterPosition]
+         *
+         * @param viewHolder the holder to find the position of
+         * @return the index of the holder, or -1 if not found
+         */
+        @JvmStatic
+        fun getAdapterPosition(viewHolder: RecyclerView.ViewHolder): Int {
+            return getPosition(viewHolder)
+        }
+
+        /**
+         * Get the position in the AdapterLayout of the View holder.
+         * Use this instead of [RecyclerView.ViewHolder.getLayoutPosition]
+         *
+         * @param viewHolder the holder to find the position of
+         * @return the index of the holder, or -1 if not found
+         */
+        @JvmStatic
+        fun getLayoutPosition(viewHolder: RecyclerView.ViewHolder): Int {
+            return getPosition(viewHolder)
+        }
+
+        private fun getPosition(viewHolder: RecyclerView.ViewHolder): Int {
+            return viewHolder.itemView.getTag(R.id.adapter_layout_list_position) as Int
+        }
+    }
+}