[김예란_Android] 9주차 과제 제출

app/build.gradle.kts

@@ -45,4 +45,16 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
+    implementation(libs.androidx.fragment.ktx)
+    implementation (libs.retrofit)
+    implementation (libs.converter.gson)
+    implementation (libs.androidx.lifecycle.viewmodel.ktx)
+    implementation (libs.androidx.lifecycle.livedata.ktx)
+    implementation (libs.androidx.recyclerview)
+    implementation(libs.kotlin.stdlib)
+}
+android {
+    buildFeatures {
+        dataBinding = true
+    }
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -20,6 +23,9 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".RepositoryActivity"
+            android:exported="false" />
     </application>
 
 </manifest>

app/src/main/java/com/example/android_25_2/GitHubApiService.kt

@@ -0,0 +1,36 @@
+package com.example.android_25_2
+
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import retrofit2.http.GET
+import retrofit2.http.Path
+import retrofit2.http.Query
+import retrofit2.create
+
+interface GitHubApiService {
+
+    @GET("search/users")
+    suspend fun searchUsers(
+        @Query("q") query: String,
+        @Query("page") page: Int,
+        @Query("per_page") perPage: Int
+    ): UserSearchResponse
+
+    @GET("users/{username}/repos")
+    suspend fun getUserRepositories(
+        @Path("username") username: String,
+        @Query("page") page: Int,
+        @Query("per_page") perPage: Int
+    ): List<Repository>
+
+    companion object {
+        fun create(): GitHubApiService {
+            val retrofit = Retrofit.Builder()
+                .baseUrl("https://api.github.com/")
+                .addConverterFactory(GsonConverterFactory.create())
+                .build()
+
+            return retrofit.create()
+        }
+    }
+}

app/src/main/java/com/example/android_25_2/MainActivity.kt

@@ -1,20 +1,84 @@
 package com.example.android_25_2
 
 import android.os.Bundle
-import androidx.activity.enableEdgeToEdge
+import android.content.Intent
+import android.util.Log
+import androidx.lifecycle.ViewModelProvider
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.core.widget.addTextChangedListener
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.example.android_25_2.databinding.ActivityMainBinding
 
 class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+    private lateinit var viewModel: UserSearchViewModel
+    private lateinit var adapter: UserAdapter
+    companion object {
+        const val user_name = "username"
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
-        setContentView(R.layout.activity_main)
-        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+        Log.d("MainActivity", "🚀 onCreate 시작")
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        ViewCompat.setOnApplyWindowInsetsListener(binding.root) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
             insets
         }
+
+        viewModel = ViewModelProvider(this)[UserSearchViewModel::class.java]
+
+        setupRecyclerView()
+        setupSearchView()
+        observeViewModel()
+        Log.d("MainActivity", "✅ onCreate 완료")
+    }
+
+    private fun setupRecyclerView() {
+        Log.d("MainActivity", "📦 RecyclerView 설정")
+        adapter = UserAdapter { username ->
+            val intent = Intent(this, RepositoryActivity::class.java)
+            intent.putExtra(user_name, username)
+            startActivity(intent)
+        }
+        binding.recyclerView.adapter = adapter
+        binding.recyclerView.layoutManager = LinearLayoutManager(this)
+        binding.recyclerView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
+            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+                super.onScrolled(recyclerView, dx, dy)
+
+                val layoutManager = recyclerView.layoutManager as LinearLayoutManager
+                val lastVisible = layoutManager.findLastVisibleItemPosition()
+                val totalCount = layoutManager.itemCount
+
+                if (lastVisible >= totalCount - 5) {
+                    viewModel.loadMore()
+                }
+            }
+        })
+    }
+
+    private fun setupSearchView() {
+        Log.d("MainActivity", "🔍 SearchView 설정")
+        binding.editSearch.addTextChangedListener { text ->
+            val query = text.toString()
+            Log.d("MainActivity", "⌨️ 텍스트 변경: '$query'")
+            viewModel.searchUsers(query)
+        }
+        Log.d("MainActivity", "✅ SearchView 리스너 등록 완료")
+    }
+
+    private fun observeViewModel() {
+        Log.d("MainActivity", "👀 ViewModel 관찰 시작")
+        viewModel.users.observe(this) { users ->
+            Log.d("MainActivity", "📱 사용자 목록 업데이트: ${users.size}개")
+            adapter.submitList(users)
+        }
     }
 }

app/src/main/java/com/example/android_25_2/Repository.kt

@@ -0,0 +1,8 @@
+package com.example.android_25_2
+
+data class Repository(
+    val id: Long,
+    val full_name: String,
+    val description: String?,
+    val html_url: String
+)

app/src/main/java/com/example/android_25_2/RepositoryActivity.kt

@@ -0,0 +1,64 @@
+package com.example.android_25_2
+
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.ViewModelProvider
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.example.android_25_2.MainActivity.Companion.user_name
+import com.example.android_25_2.databinding.ActivityRepositoryBinding
+
+class RepositoryActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityRepositoryBinding
+    private lateinit var viewModel: RepositoryViewModel
+    private lateinit var adapter: RepositoryAdapter
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = ActivityRepositoryBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+        viewModel = ViewModelProvider(this)[RepositoryViewModel::class.java]
+        val username = intent.getStringExtra(user_name) ?: ""
+
+        title = "$username's Repositories"
+
+        setupRecyclerView()
+        observeViewModel()
+
+        viewModel.loadRepositories(username)
+    }
+
+    private fun setupRecyclerView() {
+        adapter = RepositoryAdapter { url ->
+            val intent = Intent(Intent.ACTION_VIEW)
+            intent.data = Uri.parse(url)
+            startActivity(intent)
+        }
+
+        binding.recyclerView.adapter = adapter
+        binding.recyclerView.layoutManager = LinearLayoutManager(this)
+        binding.recyclerView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
+            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+                super.onScrolled(recyclerView, dx, dy)
+
+                val layoutManager = recyclerView.layoutManager as LinearLayoutManager
+                val lastVisible = layoutManager.findLastVisibleItemPosition()
+                val totalCount = layoutManager.itemCount
+
+                if (lastVisible >= totalCount - 5) {
+                    viewModel.loadMore()
+                }
+            }
+        })
+    }
+
+    private fun observeViewModel() {
+        viewModel.repositories.observe(this) { repositories ->
+            adapter.submitList(repositories)
+        }
+    }
+}

app/src/main/java/com/example/android_25_2/RepositoryAdapter.kt

@@ -0,0 +1,32 @@
+package com.example.android_25_2
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import com.example.android_25_2.databinding.ItemRepositoryBinding
+
+class RepositoryAdapter(
+    private val onItemClick: (String) -> Unit
+) : ListAdapter<Repository, RepositoryViewHolder>(RepositoryDiffCallback()) {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RepositoryViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val binding = ItemRepositoryBinding.inflate(inflater, parent, false)
+        return RepositoryViewHolder(binding, onItemClick)
+    }
+
+    override fun onBindViewHolder(holder: RepositoryViewHolder, position: Int) {
+        val repository = getItem(position)
+        holder.bind(repository)
+    }
+}
+
+class RepositoryDiffCallback : DiffUtil.ItemCallback<Repository>() {
+    override fun areItemsTheSame(oldItem: Repository, newItem: Repository): Boolean {
+        return oldItem.id == newItem.id
+    }
+    override fun areContentsTheSame(oldItem: Repository, newItem: Repository): Boolean {
+        return oldItem == newItem
+    }
+}

app/src/main/java/com/example/android_25_2/RepositoryViewHolder.kt

@@ -0,0 +1,18 @@
+package com.example.android_25_2
+
+import androidx.recyclerview.widget.RecyclerView
+import com.example.android_25_2.databinding.ItemRepositoryBinding
+
+class RepositoryViewHolder(
+    private val binding: ItemRepositoryBinding,
+    private val onItemClick: (String) -> Unit
+) : RecyclerView.ViewHolder(binding.root) {
+
+    fun bind(repository: Repository) {
+        binding.repository = repository
+        binding.executePendingBindings()
+        binding.root.setOnClickListener {
+            onItemClick(repository.html_url)
+        }
+    }
+}

app/src/main/java/com/example/android_25_2/RepositoryViewModel.kt

@@ -0,0 +1,50 @@
+package com.example.android_25_2
+
+import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.launch
+
+class RepositoryViewModel : ViewModel() {
+
+    private val apiService = GitHubApiService.create()
+    private val _repositories = MutableLiveData<List<Repository>>()
+    val repositories: LiveData<List<Repository>> = _repositories
+    private var currentPage = 1
+    private var currentUsername = ""
+
+    fun loadRepositories(username: String) {
+        currentUsername = username
+        currentPage = 1
+
+        viewModelScope.launch {
+            try {
+                val repos = apiService.getUserRepositories(username, currentPage, 30)
+                _repositories.value = repos
+            } catch (e: Exception) {
+                _repositories.value = emptyList()
+            }
+        }
+    }
+
+    fun loadMore() {
+        if (currentUsername.isEmpty()) {
+            return
+        }
+
+        viewModelScope.launch {
+            try {
+                currentPage += 1
+                val repos = apiService.getUserRepositories(currentUsername, currentPage, 30)
+                val currentList = _repositories.value ?: emptyList()
+                val newList = currentList + repos
+
+                _repositories.value = newList
+            } catch (e: Exception) {
+                currentPage -= 1
+            }
+        }
+    }
+}

app/src/main/java/com/example/android_25_2/User.kt

@@ -0,0 +1,12 @@
+package com.example.android_25_2
+
+data class User(
+    val id: Long,
+    val login: String,
+    val html_url: String
+)
+
+data class UserSearchResponse(
+    val total_count: Int,
+    val items: List<User>
+)