Added MovieActivity for opening movie details

app/build.gradle

@@ -30,6 +30,7 @@ dependencies {
 
     implementation "com.google.android.material:material:${versions.material}"
     implementation "androidx.appcompat:appcompat:${versions.androidxAppcompat}"
+    implementation "androidx.constraintlayout:constraintlayout:${versions.constraint}"
     implementation "androidx.recyclerview:recyclerview:${versions.androidx}"
 
     implementation "androidx.lifecycle:lifecycle-extensions:${versions.lifecycle}"

app/src/main/AndroidManifest.xml

@@ -12,7 +12,7 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true">
-
+        <activity android:name=".view.movie.MovieActivity" />
         <activity android:name=".view.MoviesActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -23,4 +23,4 @@
         </activity>
     </application>
 
-</manifest>
+</manifest>

app/src/main/kotlin/io/github/erikjhordanrey/arch_components_paging_library/data/room/Movie.kt

@@ -1,13 +1,16 @@
 package io.github.erikjhordanrey.arch_components_paging_library.data.room
 
+import android.os.Parcelable
 import androidx.room.Entity
 import androidx.room.PrimaryKey
 import io.github.erikjhordanrey.arch_components_paging_library.data.room.DATABASE.TABLE_MOVIE
+import kotlinx.android.parcel.Parcelize
 
+@Parcelize
 @Entity(tableName = TABLE_MOVIE)
 data class Movie(@PrimaryKey val id: Long,
                  val title: String,
                  val popularity: Int,
                  val voteAverage: Int,
                  val posterUrl: String,
-                 val description: String)
+                 val description: String) : Parcelable

app/src/main/kotlin/io/github/erikjhordanrey/arch_components_paging_library/view/MoviesActivity.kt

@@ -1,18 +1,27 @@
 package io.github.erikjhordanrey.arch_components_paging_library.view
 
+import android.content.Intent
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.Observer
 import io.github.erikjhordanrey.arch_components_paging_library.R
 import io.github.erikjhordanrey.arch_components_paging_library.di.provideMoviesViewModel
 import io.github.erikjhordanrey.arch_components_paging_library.view.decorator.MarginDecoration
+import io.github.erikjhordanrey.arch_components_paging_library.view.movie.MovieActivity
 import io.github.erikjhordanrey.arch_components_paging_library.viewmodel.MoviesViewModel
 import kotlinx.android.synthetic.main.activity_movies.movies_recycler
 
 class MoviesActivity : AppCompatActivity() {
 
     private lateinit var moviesViewModel: MoviesViewModel
-    private val moviePagedListAdapter by lazy { MoviesPagedListAdapter() }
+
+    private val moviePagedListAdapter by lazy {
+        MoviesPagedListAdapter {
+            val intent = Intent(this, MovieActivity::class.java)
+            intent.putExtras(Bundle().apply { putParcelable(ARG_MOVIE, it) })
+            startActivity(intent)
+        }
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -39,4 +48,8 @@ class MoviesActivity : AppCompatActivity() {
             moviePagedListAdapter.submitList(it)
         })
     }
+
+    companion object {
+        const val ARG_MOVIE = "movie"
+    }
 }

app/src/main/kotlin/io/github/erikjhordanrey/arch_components_paging_library/view/MoviesPagedListAdapter.kt

@@ -7,7 +7,7 @@ import androidx.recyclerview.widget.DiffUtil
 import io.github.erikjhordanrey.arch_components_paging_library.R
 import io.github.erikjhordanrey.arch_components_paging_library.data.room.Movie
 
-class MoviesPagedListAdapter : PagedListAdapter<Movie, MoviesViewHolder>(movieDiffCallback) {
+class MoviesPagedListAdapter(val clickListener: (Movie) -> Unit) : PagedListAdapter<Movie, MoviesViewHolder>(movieDiffCallback) {
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MoviesViewHolder {
         val itemView = LayoutInflater.from(parent.context).inflate(R.layout.item_movie, parent, false)
@@ -17,6 +17,10 @@ class MoviesPagedListAdapter : PagedListAdapter<Movie, MoviesViewHolder>(movieDi
     override fun onBindViewHolder(holder: MoviesViewHolder, position: Int) {
         val movie = getItem(position)
         if (movie != null) holder.render(movie) else holder.clear()
+
+        holder.itemView.setOnClickListener {
+            movie?.let { movie -> clickListener(movie) }
+        }
     }
 
     companion object {

app/src/main/kotlin/io/github/erikjhordanrey/arch_components_paging_library/view/MoviesViewHolder.kt

@@ -3,13 +3,17 @@ package io.github.erikjhordanrey.arch_components_paging_library.view
 import android.view.View
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
+import io.github.erikjhordanrey.arch_components_paging_library.R
 import io.github.erikjhordanrey.arch_components_paging_library.data.room.Movie
 import kotlinx.android.synthetic.main.item_movie.view.image
 
 class MoviesViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
 
     fun render(movie: Movie) = itemView.run {
-        Glide.with(image.context).load(movie.posterUrl).into(image)
+        Glide.with(image.context)
+                .load(movie.posterUrl)
+                .placeholder(R.drawable.ic_launcher_background)
+                .into(image)
     }
 
     fun clear() = itemView.run {

app/src/main/kotlin/io/github/erikjhordanrey/arch_components_paging_library/view/movie/MovieActivity.kt

@@ -0,0 +1,36 @@
+package io.github.erikjhordanrey.arch_components_paging_library.view.movie
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.view.MenuItem
+import com.bumptech.glide.Glide
+import io.github.erikjhordanrey.arch_components_paging_library.R
+import io.github.erikjhordanrey.arch_components_paging_library.data.room.Movie
+import io.github.erikjhordanrey.arch_components_paging_library.view.MoviesActivity.Companion.ARG_MOVIE
+import kotlinx.android.synthetic.main.activity_movie.*
+
+class MovieActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_movie)
+        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+
+        val movie = intent.getParcelableExtra<Movie>(ARG_MOVIE)
+
+        Glide.with(this)
+                .load(movie.posterUrl)
+                .placeholder(R.drawable.ic_launcher_background)
+                .into(movie_image)
+
+        movie_title.text = movie.title
+        movie_description.text = movie.description
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            android.R.id.home -> onBackPressed()
+        }
+        return super.onOptionsItemSelected(item)
+    }
+}

app/src/main/res/layout/activity_movie.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".view.movie.MovieActivity">
+
+    <ImageView
+        android:id="@+id/movie_image"
+        android:layout_width="0dp"
+        android:layout_height="400dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:background="@drawable/ic_launcher_background" />
+
+    <TextView
+        android:id="@+id/movie_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        android:textSize="24sp"
+        android:textStyle="bold"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/movie_image"
+        tools:text="@string/app_name" />
+
+    <TextView
+        android:id="@+id/movie_description"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        android:textSize="18sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/movie_title"
+        tools:text="@string/app_name" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

build.gradle

@@ -8,6 +8,7 @@ buildscript {
             'androidx'         : '1.1.0',
             'material'         : '1.1.0',
             'androidxAppcompat': '1.1.0',
+            'constraint'       : '1.1.3',
             'lifecycle'        : '2.2.0',
             'persistence'      : '2.2.5',
             'paging'           : '2.1.2',