[김예란_Android] 2주차 과제 제출

app/build.gradle.kts

@@ -45,4 +45,6 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
+    val fragment_version = "1.8.9"
+    implementation("androidx.fragment:fragment-ktx:$fragment_version")
 }

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

@@ -1,11 +1,16 @@
 package com.example.android_25_2
 
 import android.os.Bundle
+import android.widget.Button
+import android.widget.EditText
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 
+data class ListItem(val name: String)
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -16,5 +21,23 @@ class MainActivity : AppCompatActivity() {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
             insets
         }
+
+        val editText: EditText = findViewById(R.id.edit_text)
+        val addButton : Button = findViewById(R.id.button_add)
+        val itemList = mutableListOf<ListItem>()
+        val recyclerView: RecyclerView = findViewById(R.id.recycler_view)
+        val adapter = NameAdapter(itemList)
+
+        recyclerView.layoutManager = LinearLayoutManager(this)
+        recyclerView.adapter = adapter
+
+        addButton.setOnClickListener {
+            val name = editText.text.toString()
+            if (name.isNotEmpty()){
+                itemList.add(ListItem(name))
+                adapter.notifyItemInserted(itemList.size -1)
+                editText.text.clear()
+            }
+        }
     }
 }

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

@@ -0,0 +1,49 @@
+package com.example.android_25_2
+
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.recyclerview.widget.RecyclerView
+
+class NameAdapter(val items: MutableList<ListItem>) : RecyclerView.Adapter<NameAdapter.ViewHolder>() {
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val nameText: TextView = itemView.findViewById(R.id.text_name)
+        val rootView: ConstraintLayout = itemView.findViewById(R.id.root_view)
+
+        fun addText(item: ListItem) {
+            nameText.text = item.name
+
+
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.item, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(viewHolder: ViewHolder, position: Int){
+        viewHolder.nameText.text = items[position].name
+        viewHolder.rootView.setOnClickListener {
+            AlertDialog.Builder(viewHolder.rootView.context)
+                .setTitle(R.string.dialog_title)
+                .setMessage(R.string.dialog_message)
+                .setPositiveButton(R.string.dialog_positive_message) { dialog, _ ->
+                        items.removeAt(position)
+                        notifyItemRemoved(position)
+                    dialog.dismiss()
+                }
+                .setNegativeButton(R.string.dialog_negative_message, null)
+                .show()
+        }
+    }
+
+    override fun getItemCount() = items.size
+}
+

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

@@ -7,4 +7,42 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
+    <EditText
+        android:id="@+id/edit_text"
+        android:layout_width="330dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:hint="@string/editText_hint"
+        android:inputType="text"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/button_add"
+        android:layout_width="50dp"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        android:layout_marginEnd="16dp"
+        android:backgroundTint="@color/yellow"
+        android:text="+"
+        android:textSize="20sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginEnd="16dp"
+        android:layout_marginBottom="16dp"
+        app:layout_constraintTop_toBottomOf="@+id/edit_text"
+        app:layout_constraintBottom_toTopOf="@+id/button_add"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="16dp" />
+
+
+
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -0,0 +1,21 @@
+<?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"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="#FFA500"
+    android:id="@+id/root_view"
+    android:padding="16dp">
+
+    <TextView
+        android:id="@+id/text_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="18sp"
+        android:textColor="@color/white"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/colors.xml

@@ -7,4 +7,6 @@
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="yellow">#FACC00</color>
+    <color name="Orange">#F99E14</color>
 </resources>

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

@@ -1,3 +1,8 @@
 <resources>
     <string name="app_name">Android_25-2</string>
+    <string name="editText_hint">add</string>
+    <string name="dialog_title">Delet</string>
+    <string name="dialog_message">Sure?</string>
+    <string name="dialog_positive_message">Yes</string>
+    <string name="dialog_negative_message">No</string>
 </resources>

gradle/libs.versions.toml

@@ -9,6 +9,7 @@ appcompat = "1.7.1"
 material = "1.12.0"
 activity = "1.11.0"
 constraintlayout = "2.2.1"
+fragment_version = "1.8.9"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }