Merge pull request #168 from yuyakaido/feature/kotlin

Kotlinize sample app

build.gradle

@@ -1,12 +1,14 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlin_version = '1.3.11'
     repositories {
         google()
         jcenter()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

sample/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 
 android {
     compileSdkVersion 28
@@ -15,11 +16,19 @@ android {
 dependencies {
     implementation project(':cardstackview')
 
+    // Kotlin
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+
+    // Image Loading
+    implementation 'com.github.bumptech.glide:glide:4.8.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
+
+    // Support Library
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support:recyclerview-v7:28.0.0'
     implementation 'com.android.support:cardview-v7:28.0.0'
     implementation 'com.android.support:design:28.0.0'
+
+    // View
     implementation 'com.makeramen:roundedimageview:2.3.0'
-    implementation 'com.github.bumptech.glide:glide:4.8.0'
-    annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
 }

sample/src/main/java/com/yuyakaido/android/cardstackview/sample/CardStackAdapter.kt

@@ -0,0 +1,51 @@
+package com.yuyakaido.android.cardstackview.sample
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import android.widget.Toast
+import com.bumptech.glide.Glide
+
+class CardStackAdapter(
+        private var spots: List<Spot> = emptyList()
+) : RecyclerView.Adapter<CardStackAdapter.ViewHolder>() {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        return ViewHolder(inflater.inflate(R.layout.item_spot, parent, false))
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val spot = spots[position]
+        holder.name.text = spot.name
+        holder.city.text = spot.city
+        Glide.with(holder.image)
+                .load(spot.url)
+                .into(holder.image)
+        holder.itemView.setOnClickListener { v ->
+            Toast.makeText(v.context, spot.name, Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    override fun getItemCount(): Int {
+        return spots.size
+    }
+
+    fun setSpots(spots: List<Spot>) {
+        this.spots = spots
+    }
+
+    fun getSpots(): List<Spot> {
+        return spots
+    }
+
+    class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+        val name: TextView = view.findViewById(R.id.item_name)
+        var city: TextView = view.findViewById(R.id.item_city)
+        var image: ImageView = view.findViewById(R.id.item_image)
+    }
+
+}