[kara/#33] feat : 7주차 구현1

UMC_6th/app/build.gradle.kts

@@ -1,17 +1,17 @@
 plugins {
-    alias(libs.plugins.androidApplication)
-    alias(libs.plugins.jetbrainsKotlinAndroid)
+    id("com.android.application") 
+    id("org.jetbrains.kotlin.android")
+    id("kotlin-kapt")
 }
 
 android {
     namespace = "com.example.myfirstapp"
     compileSdk = 34
 
-
     buildFeatures {
         viewBinding = true
     }
-    
+
     defaultConfig {
         applicationId = "com.example.myfirstapp"
         minSdk = 24
@@ -41,16 +41,21 @@ android {
 }
 
 dependencies {
+    implementation("androidx.core:core-ktx:1.10.1")
+    implementation("androidx.appcompat:appcompat:1.6.1")
+    implementation("com.google.android.material:material:1.8.0")
+    implementation("androidx.activity:activity-ktx:1.7.1")
+    implementation("androidx.constraintlayout:constraintlayout:2.1.4")
+    implementation("androidx.fragment:fragment-ktx:1.6.2")
+    implementation("me.relex:circleindicator:2.1.6")
+    implementation("com.squareup.retrofit2:converter-gson:2.9.0")
 
-    implementation(libs.androidx.core.ktx)
-    implementation(libs.androidx.appcompat)
-    implementation(libs.material)
-    implementation(libs.androidx.activity)
-    implementation(libs.androidx.constraintlayout)
-    implementation ("androidx.fragment:fragment-ktx:1.6.2")
-    implementation ("me.relex:circleindicator:2.1.6")
-    implementation("com.squareup.retrofit2:converter-gson:2.9.0")  //gson
-    testImplementation(libs.junit)
-    androidTestImplementation(libs.androidx.junit)
-    androidTestImplementation(libs.androidx.espresso.core)
-}
+    // RoomDB
+    implementation("androidx.room:room-ktx:2.6.1")
+    implementation("androidx.room:room-runtime:2.6.1")
+    kapt("androidx.room:room-compiler:2.6.1")
+
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+}

UMC_6th/app/src/main/java/com/example/myfirstapp/Album.kt

@@ -1,8 +1,12 @@
 package com.example.myfirstapp
 
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "AlbumTable")
 data class Album(
-    var title : String? = "",
-    var singer : String? = "",
-    var coverImage : Int? = null,
-    var songs: ArrayList<Song>? = null // 앨범 수록곡
-)
+    @PrimaryKey(autoGenerate = false) var id: Int = 0,
+    var title: String? = "",
+    var singer: String? = "",
+    var coverImg: Int? = null
+)

UMC_6th/app/src/main/java/com/example/myfirstapp/AlbumDao.kt

@@ -0,0 +1,21 @@
+package com.example.myfirstapp
+
+import androidx.room.*
+
+@Dao
+interface AlbumDao {
+    @Insert
+    fun insert(album: Album)
+
+    @Update
+    fun update(album: Album)
+
+    @Delete
+    fun delete(album: Album)
+
+    @Query("SELECT * FROM AlbumTable") // 테이블의 모든 값을 가져와라
+    fun getAlbums(): List<Album>
+
+    @Query("SELECT * FROM AlbumTable WHERE id = :id")
+    fun getAlbum(id: Int): Album
+}

UMC_6th/app/src/main/java/com/example/myfirstapp/AlbumFragment.kt

@@ -43,7 +43,7 @@ class AlbumFragment : Fragment() {
     }
 
     private fun setInit(album : Album) {
-        binding.albumAlbumIv.setImageResource(album.coverImage!!)
+        binding.albumAlbumIv.setImageResource(album.coverImg!!)
         binding.albumTitleTv.text = album.title.toString()
         binding.albumSingerTv.text = album.singer.toString()
     }

UMC_6th/app/src/main/java/com/example/myfirstapp/AlbumRVAdapter.kt

@@ -48,7 +48,7 @@ class AlbumRVAdapter(private val albumlist: ArrayList<Album>): RecyclerView.Adap
         fun bind(album: Album){
             binding.itemAlbumTitleTv.text = album.title
             binding.itemAlbumSingerTv.text = album.singer
-            binding.itemAlbumCoverImgIv.setImageResource(album.coverImage!!)
+            binding.itemAlbumCoverImgIv.setImageResource(album.coverImg!!)
         }
 
     }

UMC_6th/app/src/main/java/com/example/myfirstapp/HomeFragment.kt

@@ -3,6 +3,7 @@ package com.example.myfirstapp
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -18,6 +19,7 @@ class HomeFragment : Fragment() , CommunicationInterface {
 
     lateinit var binding: FragmentHomeBinding
     private var albumDatas = ArrayList<Album>()
+    private lateinit var songDB: SongDatabase
 
     private val timer = Timer()
     private val handler = Handler(Looper.getMainLooper())
@@ -28,16 +30,11 @@ class HomeFragment : Fragment() , CommunicationInterface {
     ): View? {
 
         binding = FragmentHomeBinding.inflate(inflater, container, false)
-//
-
-        albumDatas.apply {
-            add(Album("Butter", "방탄소년단 (BTS)", R.drawable.img_album_exp))
-            add(Album("Lilac", "아이유 (IU)", R.drawable.img_album_exp2))
-            add(Album("Next Level", "에스파 (AESPA)", R.drawable.img_album_exp3))
-            add(Album("Boy with Luv", "방탄소년단 (BTS)", R.drawable.img_album_exp4))
-            add(Album("BBoom BBoom", "모모랜드 (MOMOLAND)", R.drawable.img_album_exp5))
-            add(Album("Weekend", "태연 (Tae Yeon)", R.drawable.img_album_exp6))
-        }
+
+        songDB = SongDatabase.getInstance(requireContext())!!
+        albumDatas.addAll(songDB.albumDao().getAlbums())
+        Log.d("albumlist", albumDatas.toString())
+
 
         val albumRVAdapter = AlbumRVAdapter(albumDatas)
         binding.homeTodayAlbumRv.adapter = albumRVAdapter
@@ -108,6 +105,62 @@ class HomeFragment : Fragment() , CommunicationInterface {
         }, 3000, 3000)
     }
 
+    private fun inputDummyAlbums(){
+        val songDB = SongDatabase.getInstance(requireActivity())!!
+        val songs = songDB.albumDao().getAlbums()
+
+        if (songs.isNotEmpty()) return
+
+        songDB.albumDao().insert(
+            Album(
+                1,
+                "IU 5th Album 'LILAC'",
+                "아이유 (IU)",
+                R.drawable.img_album_exp2
+            )
+        )
+
+        songDB.albumDao().insert(
+            Album(
+                2,
+                "Butter",
+                "방탄소년단 (BTS)",
+                R.drawable.img_album_exp
+            )
+        )
+
+        songDB.albumDao().insert(
+            Album(
+                3,
+                "iScreaM Vol.10: Next Level Remixes",
+                "에스파 (AESPA)",
+                R.drawable.img_album_exp3
+            )
+        )
+
+        songDB.albumDao().insert(
+            Album(
+                4,
+                "Map of the Soul Persona",
+                "뮤직 보이 (Music Boy)",
+                R.drawable.img_album_exp4,
+            )
+        )
+
+
+        songDB.albumDao().insert(
+            Album(
+                5,
+                "Great!",
+                "모모랜드 (MOMOLAND)",
+                R.drawable.img_album_exp5
+            )
+        )
+
+        val songDBData = songDB.albumDao().getAlbums()
+        Log.d("DB data", songDBData.toString())
+    }
+
     override fun sendData(album: Album) {
         if (activity is MainActivity) {
             val activity = activity as MainActivity

UMC_6th/app/src/main/java/com/example/myfirstapp/LockerAlbumRVAdapter.kt

@@ -6,9 +6,10 @@ import android.view.ViewGroup
 import androidx.recyclerview.widget.RecyclerView
 import com.example.myfirstapp.databinding.ItemLockerAlbumBinding
 
-class LockerAlbumRVAdapter (private val albumList: ArrayList<Album>) : RecyclerView.Adapter<LockerAlbumRVAdapter.ViewHolder>() {
+class LockerAlbumRVAdapter () : RecyclerView.Adapter<LockerAlbumRVAdapter.ViewHolder>() {
 
     private val switchStatus = SparseBooleanArray()
+    private val songs = ArrayList<Song>()
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
@@ -20,13 +21,13 @@ class LockerAlbumRVAdapter (private val albumList: ArrayList<Album>) : RecyclerV
     }
 
     override fun onBindViewHolder(holder: LockerAlbumRVAdapter.ViewHolder, position: Int) {
-        holder.bind(albumList[position])
-        holder.itemView.setOnClickListener {
-            itemClickListener.onItemClick(albumList[position])
-        }
+        holder.bind(songs[position])
+
         holder.binding.itemAlbumMoreIv.setOnClickListener {
-            itemClickListener.onRemoveAlbum(position)
+            itemClickListener.onRemoveAlbum(songs[position].id) // 좋아요 취소로 업데이트하는 메서드
+            removeSong(position) // 현재 화면에서 아이템을 제거
         }
+
         val switch =  holder.binding.switchRV
         switch.isChecked = switchStatus[position]
         switch.setOnClickListener {
@@ -41,11 +42,10 @@ class LockerAlbumRVAdapter (private val albumList: ArrayList<Album>) : RecyclerV
         }
     }
 
-    override fun getItemCount(): Int = albumList.size
+    override fun getItemCount(): Int = songs.size
 
     interface OnItemClickListener {
-        fun onItemClick(album : Album)
-        fun onRemoveAlbum(position: Int)
+        fun onRemoveAlbum(songId: Int)
     }
 
     private lateinit var itemClickListener : OnItemClickListener
@@ -54,22 +54,24 @@ class LockerAlbumRVAdapter (private val albumList: ArrayList<Album>) : RecyclerV
         this.itemClickListener = onItemClickListener
     }
 
-    fun addItem(album: Album){
-        albumList.add(album)
+    fun addSongs(songs: ArrayList<Song>) {
+        this.songs.clear()
+        this.songs.addAll(songs)
+
         notifyDataSetChanged()
     }
 
-    fun removeItem(position: Int){
-        albumList.removeAt(position)
+    private fun removeSong(position: Int){
+        songs.removeAt(position)
         notifyDataSetChanged()
     }
 
     inner class ViewHolder(val binding: ItemLockerAlbumBinding): RecyclerView.ViewHolder(binding.root){
 
-        fun bind(album: Album){
-            binding.itemAlbumTitleTv.text = album.title
-            binding.itemAlbumSingerTv.text = album.singer
-            binding.itemAlbumCoverIv.setImageResource(album.coverImage!!)
+        fun bind(song : Song){
+            binding.itemAlbumTitleTv.text = song.title
+            binding.itemAlbumSingerTv.text = song.singer
+            binding.itemAlbumCoverIv.setImageResource(song.coverImg!!)
         }
     }
 }