15주차 과제 PR입니다.

newProject/app/build.gradle.kts → Assignment_14/app/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
+    id("kotlin-kapt")
 }
 
 android {
@@ -10,7 +11,6 @@ android {
     defaultConfig {
         applicationId = "com.example.assignment"
         minSdk = 34
-        targetSdk = 34
         versionCode = 1
         versionName = "1.0"
 
@@ -27,11 +27,15 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
     kotlinOptions {
-        jvmTarget = "1.8"
+        jvmTarget = "17"
+    }
+    buildFeatures {
+        dataBinding = true
+        viewBinding = true
     }
 }
 
@@ -42,6 +46,13 @@ dependencies {
     implementation(libs.material)
     implementation(libs.androidx.activity)
     implementation(libs.androidx.constraintlayout)
+
+    implementation(libs.retrofit)
+    implementation(libs.converter.gson)
+    implementation(libs.androidx.recyclerview)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.kotlinx.coroutines.android)
+
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)

newProject/app/src/main/AndroidManifest.xml → Assignment_14/app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-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"
@@ -13,7 +14,7 @@
         android:theme="@style/Theme.Assignment"
         tools:targetApi="31">
         <activity
-            android:name=".MainActivity"
+            android:name=".presemtation.MainActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

Assignment_14/app/src/main/java/com/example/assignment/data/api/GitHubApiClient.kt

@@ -0,0 +1,16 @@
+package com.example.assignment.data.api
+
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+
+object GitHubApiClient {
+    private const val BASE_URL = "https://api.github.com/"
+
+    val apiService: GitHubInterface by lazy {
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+            .create(GitHubInterface::class.java)
+    }
+}

Assignment_14/app/src/main/java/com/example/assignment/data/api/GitHubInterface.kt

@@ -0,0 +1,14 @@
+package com.example.assignment.data.api
+
+import com.example.assignment.data.model.GitHubRepoResponse
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface GitHubInterface {
+    @GET("search/repositories")
+    suspend fun searchRepositories(
+        @Query("q") query: String,
+        @Query("per_page") perPage: Int = 30,
+        @Query("page") page: Int
+    ): GitHubRepoResponse
+}

Assignment_14/app/src/main/java/com/example/assignment/data/model/GitHubRepo.kt

@@ -0,0 +1,8 @@
+package com.example.assignment.data.model
+
+data class GitHubRepo(
+    val id: Long,
+    val name: String,
+    val html_url: String,
+    val description: String?
+)

Assignment_14/app/src/main/java/com/example/assignment/data/model/GitHubRepoResponse.kt

@@ -0,0 +1,5 @@
+package com.example.assignment.data.model
+
+class GitHubRepoResponse {
+    val items: List<GitHubRepo> = emptyList()
+}

Assignment_14/app/src/main/java/com/example/assignment/presemtation/MainActivity.kt

@@ -0,0 +1,69 @@
+package com.example.assignment.presemtation
+
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.widget.addTextChangedListener
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.lifecycleScope
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.example.assignment.databinding.ActivityMainBinding
+import com.example.assignment.presemtation.main.MainViewModel
+import com.example.assignment.presemtation.main.components.RepoAdapter
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+
+class MainActivity : AppCompatActivity() {
+
+    private lateinit var viewModel: MainViewModel
+    private lateinit var adapter: RepoAdapter
+    private lateinit var binding: ActivityMainBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        adapter = RepoAdapter { url ->
+            startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url)))
+        }
+
+        binding.recyclerView.adapter = adapter
+        binding.recyclerView.layoutManager = LinearLayoutManager(this)
+
+        viewModel = ViewModelProvider(this)[MainViewModel::class.java]
+
+        viewModel.repos.observe(this) { repos ->
+            adapter.submitList(repos)
+        }
+
+        viewModel.isLoading.observe(this) { isLoading ->
+            binding.progressBar.visibility = if (isLoading) View.VISIBLE else View.GONE
+        }
+
+        var debouncing: Job? = null
+        binding.searchInput.addTextChangedListener { text ->
+            debouncing?.cancel()
+            debouncing = lifecycleScope.launch {
+                delay(500)
+                text?.toString()?.let { query ->
+                    if (query.isNotEmpty()) viewModel.searchRepositories(query)
+                }
+            }
+        }
+
+        binding.recyclerView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
+            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+                super.onScrolled(recyclerView, dx, dy)
+
+                if (!recyclerView.canScrollVertically(1)) {
+                    viewModel.searchRepositories(viewModel.repos.value?.lastOrNull()?.name ?: "")
+                }
+            }
+        })
+    }
+}

Assignment_14/app/src/main/java/com/example/assignment/presemtation/main/MainViewModel.kt

@@ -0,0 +1,44 @@
+package com.example.assignment.presemtation.main
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.assignment.data.api.GitHubApiClient
+import com.example.assignment.data.model.GitHubRepo
+import kotlinx.coroutines.launch
+
+class MainViewModel : ViewModel() {
+    private val _repos = MutableLiveData<List<GitHubRepo>>()
+    val repos: LiveData<List<GitHubRepo>> get() = _repos
+
+    private val _isLoading = MutableLiveData<Boolean>()
+    val isLoading: LiveData<Boolean> get() = _isLoading
+
+    private var currentPage = 1
+    private var query = ""
+
+    fun searchRepositories(newQuery: String) {
+        if (_isLoading.value == true) return
+
+        if (query != newQuery) {
+            query = newQuery
+            currentPage = 1
+            _repos.value = emptyList()
+        }
+
+        viewModelScope.launch {
+            _isLoading.value = true
+            try {
+                val response = GitHubApiClient.apiService.searchRepositories(query, page = currentPage)
+                val currentList = _repos.value ?: emptyList()
+
+                _repos.value = currentList + response.items
+                currentPage++
+            } catch (e: Exception) {
+                e.printStackTrace()
+            }
+            _isLoading.value = false
+        }
+    }
+}

Assignment_14/app/src/main/java/com/example/assignment/presemtation/main/components/RepoAdapter.kt

@@ -0,0 +1,44 @@
+package com.example.assignment.presemtation.main.components
+
+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.example.assignment.data.model.GitHubRepo
+import com.example.assignment.databinding.ItemRepoBinding
+
+class RepoAdapter(private val onItemClick: (String) -> Unit) :
+    ListAdapter<GitHubRepo, RepoAdapter.RepoViewHolder>(DIFF_CALLBACK) {
+    companion object {
+        private val DIFF_CALLBACK = object : DiffUtil.ItemCallback<GitHubRepo>() {
+            override fun areItemsTheSame(oldItem: GitHubRepo, newItem: GitHubRepo): Boolean {
+                return oldItem.id == newItem.id
+            }
+
+            override fun areContentsTheSame(oldItem: GitHubRepo, newItem: GitHubRepo): Boolean {
+                return oldItem == newItem
+            }
+
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RepoAdapter.RepoViewHolder {
+        val binding = ItemRepoBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return RepoViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: RepoAdapter.RepoViewHolder, position: Int) {
+        holder.bind(getItem(position))
+    }
+
+    inner class RepoViewHolder(private val binding: ItemRepoBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        fun bind(repo: GitHubRepo) {
+            binding.repo = repo
+            binding.root.setOnClickListener {
+                onItemClick(repo.html_url)
+            }
+        }
+    }
+}

Assignment_14/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <androidx.constraintlayout.widget.ConstraintLayout xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".presemtation.MainActivity">
+
+        <EditText
+            android:id="@+id/search_input"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:hint="@string/search_input_text"
+            android:padding="15dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recycler_view"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/search_input" />
+
+        <com.google.android.material.progressindicator.CircularProgressIndicator
+            android:id="@+id/progress_bar"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="gone"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>

Assignment_14/app/src/main/res/layout/item_repo.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <data>
+
+        <variable
+            name="repo"
+            type="com.example.assignment.data.model.GitHubRepo" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="?attr/selectableItemBackground"
+        android:padding="16dp">
+
+
+        <TextView
+            android:id="@+id/repo_title"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:ellipsize="end"
+            android:maxLines="1"
+            android:text="@{repo.name}"
+            android:textSize="18sp"
+            android:textStyle="bold"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <TextView
+            android:id="@+id/repo_description"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="4dp"
+            android:ellipsize="end"
+            android:maxLines="2"
+            android:text="@{repo.description}"
+            android:textSize="14sp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/repo_title" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>

Assignment_14/app/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">assignment</string>
+    <string name="search_input_text">검색어를 입력해주세요.</string>
+</resources>