홍준기 과제 제출

app/build.gradle.kts

@@ -1,6 +1,19 @@
+import java.util.Properties
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.jetbrains.kotlin.android)
+
+}
+
+
+fun getApiKey(): String {
+    val properties = Properties()
+    val localPropertiesFile = rootProject.file("local.properties")
+    if (localPropertiesFile.exists()) {
+        localPropertiesFile.inputStream().use { properties.load(it) }
+    }
+    return properties.getProperty("API_KEY") ?: ""
 }
 
 android {
@@ -13,6 +26,8 @@ android {
         targetSdk = 34
         versionCode = 1
         versionName = "1.0"
+        buildConfigField("String", "API_KEY", "\"${getApiKey()}\"")
+
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -27,6 +42,12 @@ android {
         sourceCompatibility = JavaVersion.VERSION_1_8
         targetCompatibility = JavaVersion.VERSION_1_8
     }
+    viewBinding {
+        enable = true
+    }
+    buildFeatures{
+        buildConfig=true
+    }
     kotlinOptions {
         jvmTarget = "1.8"
     }
@@ -42,4 +63,13 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
+    implementation("com.github.bumptech.glide:glide:4.16.0")
+    annotationProcessor("com.github.bumptech.glide:compiler:4.16.0")
+
+    implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0")
+    implementation ("com.google.code.gson:gson:2.8.6")
+    implementation("com.squareup.retrofit2:retrofit:2.9.0")
+    implementation("com.squareup.retrofit2:converter-gson:2.9.0")
+    implementation("com.squareup.okhttp3:logging-interceptor:4.9.0")
+    implementation("com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2")
 }

app/src/main/AndroidManifest.xml

@@ -12,6 +12,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Android_study_14_2"
         tools:targetApi="31">
+        <activity
+            android:name=".AddMemoActivity"
+            android:exported="false" />
         <activity
             android:name=".MainActivity"
             android:exported="true">

app/src/main/java/com/alom/androidstudy2/AddMemoActivity.kt

@@ -0,0 +1,52 @@
+package com.alom.androidstudy2
+
+import android.content.Context
+import android.os.Bundle
+import androidx.activity.enableEdgeToEdge
+import androidx.activity.viewModels
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import com.alom.androidstudy2.databinding.ActivityAddMemoBinding
+
+class AddMemoActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityAddMemoBinding
+
+    private val viewModel: MainViewModel by viewModels {
+        ViewModelFactory(
+            RepositoryImpl(
+                getSharedPreferences("MyPrefs", Context.MODE_PRIVATE),
+                RetrofitClient.apiService
+            )
+        )
+    }
+
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityAddMemoBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.btnSave.setOnClickListener {
+            val title = binding.etTitle.text.toString()
+            val price = binding.etPrice.text.toString()
+            val time = binding.etTime.text.toString()
+
+
+            val newMemo = Memo(
+                title = title,
+                price = price,
+                imageUrl = "",
+                time = time,
+                id = (0..9999999).random()
+            )
+
+
+            viewModel.addMemo(newMemo)
+
+
+            finish()
+        }
+    }
+}

app/src/main/java/com/alom/androidstudy2/AddMemoRequest.kt

@@ -0,0 +1,11 @@
+package com.alom.androidstudy2
+
+import com.google.gson.annotations.SerializedName
+
+
+
+data class AddMemoRequest(
+    @SerializedName("p_title") val title: String,
+    @SerializedName("p_price") val price: String,
+    @SerializedName("p_time") val time: String
+)

app/src/main/java/com/alom/androidstudy2/AddMemoResponse.kt

@@ -0,0 +1,8 @@
+package com.alom.androidstudy2
+
+import com.google.gson.annotations.SerializedName
+
+data class AddMemoResponse(
+    @SerializedName("result") val result: Int
+
+)

app/src/main/java/com/alom/androidstudy2/GetMemoResponse.kt

@@ -0,0 +1,9 @@
+package com.alom.androidstudy2
+
+import com.google.gson.annotations.SerializedName
+
+data class GetMemoResponse(
+    @SerializedName("result") val result: Int,
+    @SerializedName("message") val message: String,
+    @SerializedName("data") val data: List<Memo>
+)

app/src/main/java/com/alom/androidstudy2/MainActivity.kt

@@ -1,20 +1,51 @@
 package com.alom.androidstudy2
 
+import android.content.Context
+import android.content.Intent
 import android.os.Bundle
 import androidx.activity.enableEdgeToEdge
+import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.lifecycleScope
+import com.alom.androidstudy2.databinding.ActivityMainBinding
 
 class MainActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityMainBinding
+    private lateinit var memoListAdapter: MemoListAdapter
+
+
+    private val viewModel: MainViewModel by viewModels {
+        ViewModelFactory(
+            RepositoryImpl(
+                getSharedPreferences("MyPrefs", Context.MODE_PRIVATE),
+                RetrofitClient.apiService
+            )
+        )
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
-        setContentView(R.layout.activity_main)
-        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
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+
+        memoListAdapter = MemoListAdapter()
+        binding.recyclerView.adapter = memoListAdapter
+
+
+        lifecycleScope.launchWhenStarted {
+            viewModel.currentMemo.collect { memoList ->
+                memoListAdapter.submitList(memoList)
+            }
+        }
+
+
+        binding.btnAdd.setOnClickListener {
+            val intent = Intent(this, AddMemoActivity::class.java)
+            startActivity(intent)
         }
     }
-}
+}

app/src/main/java/com/alom/androidstudy2/MainViewModel.kt

@@ -0,0 +1,42 @@
+package com.alom.androidstudy2
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+class MainViewModel(private val repository: MemoRepository) : ViewModel() {
+
+    private var _currentMemo = MutableStateFlow<List<Memo>>(emptyList())
+    val currentMemo: StateFlow<List<Memo>> get() = _currentMemo.asStateFlow()
+
+    init {
+
+        loadMemoList()
+    }
+
+    fun loadMemoList() {
+        viewModelScope.launch {
+            val memos = withContext(Dispatchers.IO) {
+                repository.getMemos()
+            }
+            _currentMemo.emit(memos)
+        }
+    }
+
+    fun addMemo(memo: Memo) {
+        viewModelScope.launch {
+
+            withContext(Dispatchers.IO) {
+                repository.addMemo(memo)
+            }
+
+            val memos = repository.getMemos()
+
+            _currentMemo.emit(memos)
+        }
+    }
+}

app/src/main/java/com/alom/androidstudy2/MainviewModelFactory.kt

@@ -0,0 +1,13 @@
+package com.alom.androidstudy2
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+
+class ViewModelFactory(private val repository: MemoRepository): ViewModelProvider.Factory {
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(MainViewModel::class.java)) {
+            return MainViewModel(repository) as T
+        }
+        throw IllegalArgumentException("ViewModel class not found")
+    }
+}

app/src/main/java/com/alom/androidstudy2/Memo.kt

@@ -0,0 +1,12 @@
+package com.alom.androidstudy2
+
+import com.google.gson.annotations.SerializedName
+
+data class Memo(
+    @SerializedName("id") val id: Int,
+    @SerializedName("title") val title: String,
+    @SerializedName("price") val price: String,
+    @SerializedName("image_url") val imageUrl: String,
+    @SerializedName("time") val time: String
+)
+

app/src/main/java/com/alom/androidstudy2/MemoListAdapter.kt

@@ -0,0 +1,46 @@
+package com.alom.androidstudy2
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView
+import com.alom.androidstudy2.databinding.ItemMemoBinding
+import com.bumptech.glide.Glide
+
+
+object MemoDiffUtil : DiffUtil.ItemCallback<Memo>() {
+    override fun areItemsTheSame(oldItem: Memo, newItem: Memo): Boolean {
+
+        return oldItem.id == newItem.id
+    }
+
+    override fun areContentsTheSame(oldItem: Memo, newItem: Memo): Boolean {
+
+        return oldItem == newItem
+    }
+}
+
+
+class MemoListAdapter : ListAdapter<Memo, MemoListAdapter.MemoViewHolder>(MemoDiffUtil) {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MemoViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val binding = ItemMemoBinding.inflate(inflater, parent, false)
+        return MemoViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: MemoViewHolder, position: Int) {
+        val memoItem = getItem(position)
+        holder.bind(memoItem)
+    }
+
+    inner class MemoViewHolder(private val binding: ItemMemoBinding) : RecyclerView.ViewHolder(binding.root) {
+        fun bind(memo: Memo) {
+            binding.tvTitle.text = memo.title
+            binding.tvPrice.text = memo.price
+            binding.tvTime.text=memo.time
+            Glide.with(binding.imgItem).load(memo.imageUrl).into(binding.imgItem)
+        }
+    }
+}

app/src/main/java/com/alom/androidstudy2/MemoRepository.kt

@@ -0,0 +1,10 @@
+package com.alom.androidstudy2
+
+interface MemoRepository {
+    suspend fun getMemos(): List<Memo>
+    suspend fun addMemo(memo: Memo): AddMemoResponse
+    suspend fun setMemo(memo: Memo)
+
+
+
+}