Merge pull request #1 from SiebelsTim/generics

Add generic type parameter to SimpleRecyclerViewAdapter
OrhanTozan · Mar 22, 2018 · 023752b · 023752b
2 parents 68f70c4 + d083866
commit 023752b
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Showing 2 changed files with 9 additions and 10 deletions.
diff --git a/lib/src/main/java/com/nahroto/simpleandroid/SimpleRecyclerViewAdapter.kt b/lib/src/main/java/com/nahroto/simpleandroid/SimpleRecyclerViewAdapter.kt
@@ -5,9 +5,9 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 
-abstract class SimpleRecyclerViewAdapter<VH : SimpleRecyclerViewAdapter.SimpleViewHolder>
+abstract class SimpleRecyclerViewAdapter<T, VH : SimpleRecyclerViewAdapter.SimpleViewHolder<T>>
 (
-        private val models: List<Any>
+        private val models: List<T>
 ) : RecyclerView.Adapter<VH>()
 {
     abstract fun getViewLayoutResource(): Int
@@ -24,8 +24,8 @@ abstract class SimpleRecyclerViewAdapter<VH : SimpleRecyclerViewAdapter.SimpleVi
 
     override fun onBindViewHolder(holder: VH, position: Int) = holder.bind(models[position])
 
-    abstract class SimpleViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView)
+    abstract class SimpleViewHolder<T>(itemView: View) : RecyclerView.ViewHolder(itemView)
     {
-        abstract fun bind(model: Any)
+        abstract fun bind(model: T)
     }
-}
+}
diff --git a/sample/src/main/java/com/nahroto/simpleandroid/sample/AnimalAdapter.kt b/sample/src/main/java/com/nahroto/simpleandroid/sample/AnimalAdapter.kt
@@ -7,20 +7,19 @@ import kotlinx.android.synthetic.main.viewholder_animal.view.*
 class AnimalAdapter
 (
         animals: ArrayList<Animal>
-) : SimpleRecyclerViewAdapter<SimpleRecyclerViewAdapter.SimpleViewHolder>(animals)
+) : SimpleRecyclerViewAdapter<Animal, AnimalAdapter.AnimalViewHolder>(animals)
 {
     override fun getViewLayoutResource() = R.layout.viewholder_animal
 
     override fun onInstantiateViewHolder(itemView: View) = AnimalViewHolder(itemView)
 
-    class AnimalViewHolder(itemView: View) : SimpleViewHolder(itemView)
+    class AnimalViewHolder(itemView: View) : SimpleViewHolder<Animal>(itemView)
     {
-        override fun bind(model: Any)
+        override fun bind(model: Animal)
         {
-            model as Animal
             itemView.name.text = model.name
             itemView.amountLegs.text = model.amountLegs.toString()
             itemView.lifeExpectancy.text = model.lifeExpectancy.toString()
         }
     }
-}
+}