clean and demo recyclerview

@@ -36,6 +36,7 @@ dependencies {
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
     implementation 'androidx.recyclerview:recyclerview:1.1.0-beta05'
     implementation 'androidx.recyclerview:recyclerview:1.1.0-beta05'
+
 }
 }
 
 
 apply plugin: 'com.google.gms.google-services'
 apply plugin: 'com.google.gms.google-services'

-package com.example.vip
-
-import android.view.LayoutInflater
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import kotlinx.android.synthetic.main.field.view.*
-
-class MainAdapter : RecyclerView.Adapter<MainAdapter.MainViewHolder>() {
-
-    var items: MutableList<PolicyField> = mutableListOf(PolicyField("Title1", "Content1"),
-        PolicyField("Title2", "Content2"),PolicyField("Title3", "Content3"))
-
-    override fun onCreateViewHolder(parent: ViewGroup, p1: Int) = MainViewHolder(parent)
-
-
-    override fun getItemCount(): Int = items.size
-
-    override fun onBindViewHolder(holer: MainViewHolder, position: Int) {
-        items[position].let { item ->
-            with(holer) {
-                tvTitle.text = item.title
-                tvContent.text = item.content
-            }
-        }
-    }
-
-    inner class MainViewHolder(parent: ViewGroup) : RecyclerView.ViewHolder(
-        LayoutInflater.from(parent.context).inflate(R.layout.field, parent, false)) {
-        val tvTitle = itemView.tv_main_title
-        val tvContent = itemView.tv_main_content
-    }
-}

-package com.example.vip
-
-class PolicyField(val title:String, val content:String)
\ No newline at end of file

+package com.example.vip
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Toast
+import androidx.recyclerview.widget.RecyclerView
+import kotlinx.android.synthetic.main.list_item.view.*
+
+class RecyclerAdapter(private val items: ArrayList<YoutubeItem>) :
+    RecyclerView.Adapter<RecyclerAdapter.ViewHolder>() {
+
+    override fun getItemCount() = items.size
+
+    override fun onBindViewHolder(holder: RecyclerAdapter.ViewHolder, position: Int) {
+        val item = items[position]
+        val listener = View.OnClickListener {it ->
+            Toast.makeText(it.context, "Clicked: ${item.title}", Toast.LENGTH_SHORT).show()
+        }
+        holder.apply {
+            bind(listener, item)
+            itemView.tag = item
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int):
+            RecyclerAdapter.ViewHolder {
+        val inflatedView = LayoutInflater.from(parent.context)
+            .inflate(R.layout.list_item, parent, false)
+        return RecyclerAdapter.ViewHolder(inflatedView)
+    }
+
+    class ViewHolder(v: View) : RecyclerView.ViewHolder(v) {
+
+        private var view: View = v
+
+        fun bind(listener: View.OnClickListener, item: YoutubeItem) {
+            view.thumbnail.setImageDrawable(item.image)
+            view.title.text = item.title
+            view.setOnClickListener(listener)
+        }
+    }
+}
\ No newline at end of file

@@ -2,7 +2,7 @@ package com.example.vip
 
 
 import android.os.Bundle
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.core.content.ContextCompat
 import kotlinx.android.synthetic.main.activity_signin.*
 import kotlinx.android.synthetic.main.activity_signin.*
 
 
 class SignInActivity : AppCompatActivity() {
 class SignInActivity : AppCompatActivity() {
@@ -11,9 +11,23 @@ class SignInActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_signin)
         setContentView(R.layout.activity_signin)
 
 
-        rv_field.adapter=MainAdapter()
-        rv_field.layoutManager=LinearLayoutManager(this)
-    }
+        val list = ArrayList<YoutubeItem>()
+
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image01)!!, getString(R.string.title01)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image02)!!, getString(R.string.title02)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image03)!!, getString(R.string.title03)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image04)!!, getString(R.string.title04)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image05)!!, getString(R.string.title05)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image06)!!, getString(R.string.title06)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image07)!!, getString(R.string.title07)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image08)!!, getString(R.string.title08)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image09)!!, getString(R.string.title09)))
+        list.add(YoutubeItem(ContextCompat.getDrawable(this,R.drawable.image10)!!, getString(R.string.title10)))
+
+        val adapter = RecyclerAdapter(list)
+        recyclerView.adapter = adapter
+
+}
 
 
 
 
 }
 }

+package com.example.vip
+
+import android.graphics.drawable.Drawable
+
+class YoutubeItem(val image: Drawable, val title: String) {
+
+}
\ No newline at end of file

@@ -6,24 +6,23 @@
     android:layout_height="match_parent"
     android:layout_height="match_parent"
     tools:context=".SignInActivity">
     tools:context=".SignInActivity">
 
 
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        tools:layout_editor_absoluteX="46dp"
+        tools:layout_editor_absoluteY="287dp">
 
 
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="로그인완료"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:clipToPadding="false"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            tools:listitem="@layout/list_item"/>
+
+
+    </LinearLayout>
 
 
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/rv_field"
-        android:layout_width="200dp"
-        android:layout_height="50dp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView" />
 
 
 </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:orientation="vertical"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <RelativeLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_margin="20dp"
-        android:orientation="vertical">
-        <TextView
-            android:id="@+id/tv_main_title"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            tools:text="TITLE"
-            />
-        <TextView
-            android:id="@+id/tv_main_content"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tv_main_title"
-            android:layout_marginTop="10dp"
-            android:autoLink="web"
-            tools:text="Content"/>
-    </RelativeLayout>
-
-</LinearLayout>
\ No newline at end of file

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+
+    <ImageView
+        android:id="@+id/thumbnail"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        android:adjustViewBounds="true"/>
+
+    <TextView
+        android:id="@+id/title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="20sp"
+        app:layout_constraintTop_toBottomOf="@+id/thumbnail"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"/>
+
+</LinearLayout>
\ No newline at end of file

 <resources>
 <resources>
     <string name="app_name">vip</string>
     <string name="app_name">vip</string>
+
+    <string name="title01">10 Best Practices for Moving to a Single Activity</string>
+    <string name="title02">Cost of a Pixel Color (Android Dev Summit 18)</string>
+    <string name="title03">Foldables, App Bundles and more from Android Dev Summit 18!</string>
+    <string name="title04">Fun with LiveData (Android Dev Summit 18)</string>
+    <string name="title05">Keynote (Android Dev Summit 18)</string>
+    <string name="title06">Modern WebView Best Practices (Android Dev Summit 18)</string>
+    <string name="title07">Performance Analysis Using Systrace (Android Dev Summit 18)</string>
+    <string name="title08">Preferential Practices for Preferences (Android Dev Summit 18)</string>
+    <string name="title09">That’s a wrap on Android Dev Summit 2018!</string>
+    <string name="title10">Vitals: Past, Present and Future (Android Dev Summit 18)</string>
 </resources>
 </resources>