MVVM - Repository, ViewModel구현

app/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.jetbrains.kotlin.android)
+    alias(libs.plugins.kotlin.serialization)
 }
 
 android {
@@ -33,6 +34,10 @@ android {
     kotlinOptions {
         jvmTarget = "17"
     }
+    buildFeatures {
+        buildConfig = true
+        viewBinding = true
+    }
 }
 
 dependencies {
@@ -43,6 +48,12 @@ dependencies {
     implementation(libs.androidx.activity)
     implementation(libs.androidx.constraintlayout)
     implementation(libs.androidx.lifecycle.runtime)
+    implementation(libs.retrofit)
+    implementation(libs.kotlinx.serialization.json)
+    implementation(libs.retrofit.kotlin.serialization)
+    implementation(libs.okhttp)
+    implementation(libs.okhttp.logging)
+    implementation(libs.glide)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)

app/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -11,6 +13,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.AndroidAssignment"
+        android:usesCleartextTraffic="true"
         tools:targetApi="31">
         <activity
             android:name=".MainActivity"

app/src/main/java/com/yongjincompany/android_assignment/MainActivity.kt

@@ -7,26 +7,30 @@ import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.fragment.app.Fragment
 import com.google.android.material.tabs.TabLayout
+import com.yongjincompany.android_assignment.databinding.ActivityCardDetailBinding
+import com.yongjincompany.android_assignment.databinding.ActivityMainBinding
 import com.yongjincompany.android_assignment.feature.home.AllCardListFragment
 import com.yongjincompany.android_assignment.feature.home.RecentReadCardListFragment
 
 class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
-        setContentView(R.layout.activity_main)
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        val view = binding.root
+        setContentView(view)
         ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
             insets
         }
 
-        val tabLayout: TabLayout = findViewById(R.id.tl_list_tab)
-
         //init fragment
         replaceFragment(RecentReadCardListFragment())
 
-        tabLayout.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
+        binding.tlListTab.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
             override fun onTabSelected(tab: TabLayout.Tab) {
                 when (tab.position) {
                     0 -> {

app/src/main/java/com/yongjincompany/android_assignment/core/util/LifeCycle.kt

@@ -0,0 +1,31 @@
+package com.yongjincompany.android_assignment.core.util
+
+import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+
+fun Fragment.repeatOnLifecycleState(
+    state: Lifecycle.State = Lifecycle.State.STARTED,
+    block: suspend CoroutineScope.() -> Unit
+) =
+    viewLifecycleOwner.launchRepeatOnLifecycleState(state, block)
+
+fun AppCompatActivity.repeatOnLifecycleState(
+    state: Lifecycle.State = Lifecycle.State.STARTED,
+    block: suspend CoroutineScope.() -> Unit
+): Job =
+    launchRepeatOnLifecycleState(state, block)
+
+private fun LifecycleOwner.launchRepeatOnLifecycleState(
+    state: Lifecycle.State = Lifecycle.State.STARTED,
+    block: suspend CoroutineScope.() -> Unit
+) =
+    lifecycleScope.launch {
+        lifecycle.repeatOnLifecycle(state, block)
+    }

app/src/main/java/com/yongjincompany/android_assignment/core/util/Toast.kt

@@ -0,0 +1,8 @@
+package com.yongjincompany.android_assignment.core.util
+
+import android.content.Context
+import android.widget.Toast
+
+fun Context.toast(message: String, duration: Int = Toast.LENGTH_SHORT) {
+    Toast.makeText(this, message, duration).show()
+}

app/src/main/java/com/yongjincompany/android_assignment/data/RepositoryBuilder.kt

@@ -0,0 +1,8 @@
+package com.yongjincompany.android_assignment.data
+
+import com.yongjincompany.android_assignment.data.RetrofitBuilder.cardApi
+import com.yongjincompany.android_assignment.data.repository.CardRepository
+
+object RepositoryBuilder {
+    val cardRepository = CardRepository(cardApi)
+}

app/src/main/java/com/yongjincompany/android_assignment/data/RetrofitBuilder.kt

@@ -0,0 +1,39 @@
+package com.yongjincompany.android_assignment.data
+
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import com.yongjincompany.android_assignment.BuildConfig
+import com.yongjincompany.android_assignment.data.api.CardApi
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+
+object RetrofitBuilder {
+    private const val BASE_URL = "http://10.0.2.2:8080/api/"
+
+    private val json = Json {
+        ignoreUnknownKeys = true
+        coerceInputValues = true
+    }
+
+    private val httpLoggingInterceptor = HttpLoggingInterceptor().apply {
+        level = if (BuildConfig.DEBUG) {
+            HttpLoggingInterceptor.Level.BODY
+        } else {
+            HttpLoggingInterceptor.Level.NONE
+        }
+    }
+
+    private val okHttpClient = OkHttpClient.Builder()
+        .addInterceptor(httpLoggingInterceptor)
+        .build()
+
+    private val retrofit = Retrofit.Builder()
+        .baseUrl(BASE_URL)
+        .client(okHttpClient)
+        .addConverterFactory(json.asConverterFactory("application/json".toMediaType()))
+        .build()
+
+    val cardApi: CardApi = retrofit.create(CardApi::class.java)
+}

app/src/main/java/com/yongjincompany/android_assignment/data/api/CardApi.kt

@@ -0,0 +1,21 @@
+package com.yongjincompany.android_assignment.data.api
+
+import com.yongjincompany.android_assignment.data.model.response.Card
+import retrofit2.http.GET
+import retrofit2.http.PATCH
+import retrofit2.http.Path
+import retrofit2.http.Query
+
+interface CardApi {
+    @GET("card")
+    suspend fun fetchAllCardList(): List<Card>
+
+    @GET("card/read")
+    suspend fun fetchRecentReadCardList(): List<Card>
+
+    @PATCH("card/read/{id}")
+    suspend fun changeCardReadStatus(
+        @Path("id") id: Long,
+        @Query("isRead") isRead: Boolean
+    ): Card
+}

app/src/main/java/com/yongjincompany/android_assignment/data/model/response/Card.kt

@@ -0,0 +1,22 @@
+package com.yongjincompany.android_assignment.data.model.response
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Card(
+    val description: String,
+    val grade: CardGradeType,
+    val id: Long,
+    val imageUrl: String,
+    val isRead: Boolean,
+    val name: String,
+)
+
+@Serializable
+enum class CardGradeType {
+    S,
+    A,
+    B,
+    C,
+    D,
+}

app/src/main/java/com/yongjincompany/android_assignment/data/repository/CardRepository.kt

@@ -0,0 +1,18 @@
+package com.yongjincompany.android_assignment.data.repository
+
+import com.yongjincompany.android_assignment.data.api.CardApi
+import com.yongjincompany.android_assignment.data.model.response.Card
+
+class CardRepository(private val cardApi: CardApi) {
+    suspend fun fetchAllCardList(): Result<List<Card>> =
+        kotlin.runCatching { cardApi.fetchAllCardList() }
+
+    suspend fun fetchRecentReadCardList(): Result<List<Card>> =
+        kotlin.runCatching { cardApi.fetchRecentReadCardList() }
+
+    suspend fun changeCardReadStatus(
+        id: Long,
+        isRead: Boolean
+    ): Result<Card> =
+        kotlin.runCatching { cardApi.changeCardReadStatus(id, isRead) }
+}

app/src/main/java/com/yongjincompany/android_assignment/feature/home/AllCardListFragment.kt

@@ -1,31 +1,64 @@
 package com.yongjincompany.android_assignment.feature.home
 
 import android.os.Bundle
+import android.view.LayoutInflater
 import android.view.View
+import android.view.ViewGroup
 import androidx.fragment.app.Fragment
-import androidx.recyclerview.widget.RecyclerView
-import com.yongjincompany.android_assignment.data.Card
-import com.yongjincompany.android_assignment.data.Grade
-import com.yongjincompany.android_assignment.R
+import androidx.lifecycle.ViewModelProvider
 import com.yongjincompany.android_assignment.core.util.SpacingItemDecoration
+import com.yongjincompany.android_assignment.core.util.repeatOnLifecycleState
+import com.yongjincompany.android_assignment.data.RepositoryBuilder
+import com.yongjincompany.android_assignment.databinding.FragmentAllCardListBinding
 import com.yongjincompany.android_assignment.feature.home.adapter.AllCardListAdapter
+import com.yongjincompany.android_assignment.feature.home.viewmodel.AllCardListViewModel
+import com.yongjincompany.android_assignment.feature.home.viewmodel.AllCardListViewModelFactory
 
-class AllCardListFragment : Fragment(R.layout.fragment_all_card_list) {
+class AllCardListFragment : Fragment() {
+    private var _binding: FragmentAllCardListBinding? = null
+    private val binding get() = _binding!!
+    private lateinit var allCardListAdapter: AllCardListAdapter
+    private lateinit var vm: AllCardListViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        _binding = FragmentAllCardListBinding.inflate(inflater, container, false)
+        val view = binding.root
+        return view
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        val allCardListRecyclerView: RecyclerView = view.findViewById(R.id.rv_all_card_list)
-        val allCardList = listOf(
-            Card(id = 0, grade = Grade.D, name = "사죄 용진", img = R.drawable.sorry_yongjin_card_img, description = "왜 이 사람은 책상 위에 올라가 사죄하고 있을까요? 전 알아요 그는 세미콜론이라는 동아리를 나가서 새 길을 개척하겠다는 포부를 가지고 있다는 것을"),
-            Card(id = 1, grade = Grade.C, name = "민달팽이 정민", img = R.drawable.snail_jeongmin_card_img, description = "문정민, 그는 프랭키 그 자체입니다. 그의 얼굴을 보고 절대 속으면 안됩니다. 끔찍하게도 그의 얼굴과 달리 그의 몸은 민달팽이와 같은 구조로 되어있습니다."),
-            Card(id = 2, grade = Grade.B, name = "이별 영준", img = R.drawable.brakeup_youngjun_card_img, description = "만약 저런 표정으로 누워있는 그를 발견한다면 그를 절대로 건드리지 않는 것이 좋을겁니다. 그는 안좋은 일을 겪었거든요…"),
-            Card(id = 3, grade = Grade.A, name = "마스터이 경수", img = R.drawable.masteryi_gyeongsu_card_img, description = "그는 잠자리일까요? 사람일까요? 그의 정체를 아는 사람은 없을겁니다… 아마도요.."),
-            Card(id = 4, grade = Grade.A, name = "앙큼한 진성", img = R.drawable.cute_jinsung_card_img, description = "오우 그를 보셨나요? 그는 참 상큼발랄한 친구입니다. 그의 이름이요? 황진성입니다. 그는 웹개발자이죠.")
-        )
-
-        allCardListRecyclerView.adapter = AllCardListAdapter(allCardList)
-        allCardListRecyclerView.addItemDecoration(SpacingItemDecoration(30))
+        init()
+        observe()
+    }
+
+    private fun init() {
+        val viewModelFactory = AllCardListViewModelFactory(RepositoryBuilder.cardRepository)
+        vm = ViewModelProvider(this, viewModelFactory)[AllCardListViewModel::class.java]
+
+        allCardListAdapter = AllCardListAdapter()
+        binding.rvAllCardList.adapter = allCardListAdapter
+        binding.rvAllCardList.addItemDecoration(SpacingItemDecoration(30))
+
+        vm.fetchAllCardList()
+    }
+
+    private fun observe() {
+        repeatOnLifecycleState {
+            vm.allCardList.collect {
+                allCardListAdapter.updateAllCard(vm.allCardList.value)
+            }
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
     }
 }