[정현수_Android] 9-2주차 과제 제출

app/build.gradle.kts

@@ -40,4 +40,6 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
+    implementation("com.squareup.retrofit2:retrofit:3.0.0")
+    implementation("com.squareup.retrofit2:converter-gson:3.0.0")
 }

app/src/main/AndroidManifest.xml

@@ -1,7 +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"
         android:dataExtractionRules="@xml/data_extraction_rules"

app/src/main/java/com/example/android_2026_1/MainActivity.kt

@@ -1,20 +1,110 @@
 package com.example.android_2026_1
 
+import android.annotation.SuppressLint
+import android.content.Intent
 import android.os.Bundle
-import androidx.activity.enableEdgeToEdge
+import android.text.Editable
+import android.text.TextWatcher
+import android.widget.Button
+import android.widget.EditText
 import androidx.appcompat.app.AppCompatActivity
-import androidx.core.view.ViewCompat
-import androidx.core.view.WindowInsetsCompat
+import androidx.core.net.toUri
+import androidx.lifecycle.lifecycleScope
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.google.gson.annotations.SerializedName
+import kotlinx.coroutines.launch
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+object RetrofitClient {
+    val retrofit: Retrofit = Retrofit.Builder()
+        .baseUrl("https://api.github.com/")
+        .addConverterFactory(GsonConverterFactory.create())
+        .build()
+
+    val api: GithubApi = retrofit.create(GithubApi::class.java)
+}
 
 class MainActivity : AppCompatActivity() {
+
+    private lateinit var etSearch: EditText
+    private lateinit var btnSearch: Button
+    private lateinit var rvUsers: RecyclerView
+    private val userList = ArrayList<String>()
+    private lateinit var nameAdapter: NameAdapter
+
+    @SuppressLint("NotifyDataSetChanged")
     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
+
+        etSearch = findViewById(R.id.et_search)
+        btnSearch = findViewById(R.id.btn_search)
+        rvUsers = findViewById(R.id.rv_users)
+
+        rvUsers.layoutManager = LinearLayoutManager(this)
+        nameAdapter = NameAdapter(userList) { selectedName: String ->
+            etSearch.setText(selectedName)
+            etSearch.setSelection(selectedName.length)
+        }
+        rvUsers.adapter = nameAdapter
+
+        etSearch.addTextChangedListener(object : TextWatcher {
+            override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
+            override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
+                val query: String = s?.toString() ?: ""
+                if (query.isNotEmpty()) {
+                    lifecycleScope.launch {
+                        try {
+                            val response: UserSearchResponse = RetrofitClient.api.searchUsers(query)
+                            val items: List<UserItem>? = response.items
+                            if (items != null) {
+                                userList.clear()
+                                for (item in items) {
+                                    userList.add(item.login)
+                                }
+                                nameAdapter.notifyDataSetChanged()
+                            }
+                        } catch (e: Exception) {
+                            e.printStackTrace()
+                        }
+                    }
+                } else {
+                    userList.clear()
+                    nameAdapter.notifyDataSetChanged()
+                }
+            }
+            override fun afterTextChanged(s: Editable?) {}
+        })
+
+        btnSearch.setOnClickListener {
+            val name: String = etSearch.text.toString()
+            if (name.isNotEmpty()) {
+                val intent = Intent(
+                    Intent.ACTION_VIEW,
+                    "https://github.com/$name?tab=repositories".toUri()
+                )
+                startActivity(intent)
+            }
         }
     }
-}
+}
+
+interface GithubApi {
+    @GET("search/users")
+    suspend fun searchUsers(
+        @Query("q") query: String,
+        @Query("per_page") perPage: Int = 20
+    ): UserSearchResponse
+}
+
+data class UserSearchResponse(
+    @SerializedName("items") val items: List<UserItem>?
+)
+
+data class UserItem(
+    @SerializedName("login") val login: String
+)

app/src/main/java/com/example/android_2026_1/NameAdpater.kt

@@ -0,0 +1,35 @@
+package com.example.android_2026_1
+
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+
+class NameAdapter(
+    private val userList: List<String>,
+    private val onItemClick: (String) -> Unit
+) : RecyclerView.Adapter<NameAdapter.NameViewHolder>() {
+
+    class NameViewHolder(val textView: TextView) : RecyclerView.ViewHolder(textView)
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NameViewHolder {
+        val textView = TextView(parent.context).apply {
+            layoutParams = ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.WRAP_CONTENT
+            )
+            setPadding(50, 40, 50, 40)
+            textSize = 16f
+        }
+        return NameViewHolder(textView)
+    }
+
+    override fun onBindViewHolder(holder: NameViewHolder, position: Int) {
+        val name = userList[position]
+        holder.textView.text = name
+        holder.textView.setOnClickListener {
+            onItemClick(name)
+        }
+    }
+
+    override fun getItemCount(): Int = userList.size
+}

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

@@ -1,10 +1,35 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/main"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    android:orientation="vertical"
+    android:padding="16dp">
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <EditText
+            android:id="@+id/et_search"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:minHeight="48dp"
+            android:inputType="text"
+            android:maxLines="1"
+            android:maxLength="39"
+            android:hint="이름 입력" />
+
+        <Button
+            android:id="@+id/btn_search"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="검색" />
+    </LinearLayout>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/rv_users"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</LinearLayout>