부산대 Android_김민혁_2주차_과제_STEP2

README.md

@@ -1 +1,10 @@
-# android-map-keyword
+# android-map-keyword STEP 2
+
+## 개요
+android-map-keyword STEP2에서는 STEP1에서 생성한 로컬 데이터베이스에 들어있는 장소들에 대한 검색 기능을 구현합니다.
+
+## 기능
+- 검색어를 입력하면 검색 결과 세로 스크롤이 되는 검색 결과 목록이 표시됨
+- 검색어는 X를 눌러서 삭제 가능
+- 검색 결과 목록에서 하나의 항목을 선택 가능, 선택된 항목은 가로 스크롤 가능한 검색어 저장 목록에 추가
+- 저장된 검색어는 X를 눌러서 삭제 가능, 앱을 재실행해도 검색어 저장 목록은 유지

app/src/main/AndroidManifest.xml

@@ -13,7 +13,7 @@
         android:theme="@style/Theme.Map"
         tools:targetApi="31">
         <activity
-            android:name=".MainActivity"
+            android:name=".SearchActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/campus/tech/kakao/map/Place.kt

@@ -0,0 +1,8 @@
+package campus.tech.kakao.map
+
+data class Place(
+    val idx: Int,
+    val name: String,
+    val category: String,
+    val address: String
+)

app/src/main/java/campus/tech/kakao/map/PlaceDBHelper.kt

@@ -0,0 +1,72 @@
+package campus.tech.kakao.map
+
+import android.content.ContentValues
+import android.content.Context
+import android.database.Cursor
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+class PlaceDBHelper(context: Context) : SQLiteOpenHelper(context, "Place.db", null, 2) {
+
+    override fun onCreate(db: SQLiteDatabase?) {
+        createPlaceTable(db)
+        insertInitialPlaceData(db)
+    }
+
+    override fun onUpgrade(db: SQLiteDatabase?, oldVersion: Int, newVersion: Int) {
+        db?.execSQL("DROP TABLE IF EXISTS PlaceTable")
+        onCreate(db)
+    }
+
+    private fun createPlaceTable(db: SQLiteDatabase?) {
+        val placeTableSQL = """
+            CREATE TABLE IF NOT EXISTS PlaceTable (
+                idx INTEGER PRIMARY KEY AUTOINCREMENT,
+                name TEXT NOT NULL,
+                category TEXT NOT NULL,
+                address TEXT NOT NULL
+            )
+        """
+        db?.execSQL(placeTableSQL)
+    }
+
+    private val context: Context = context.applicationContext
+    private fun insertInitialPlaceData(db: SQLiteDatabase?) {
+        val initialPlaces = listOf(
+            Place(1, context.getString(R.string.place_kakao_cafe), context.getString(R.string.category_cafe), context.getString(R.string.place_address_1)),
+            Place(2, context.getString(R.string.place_kakao_restaurant), context.getString(R.string.category_restaurant), context.getString(R.string.place_address_2)),
+            Place(3, context.getString(R.string.place_kakao_pub), context.getString(R.string.category_pub), context.getString(R.string.place_address_3)),
+            Place(4, context.getString(R.string.place_tech_cafe), context.getString(R.string.category_cafe), context.getString(R.string.place_address_4)),
+            Place(5, context.getString(R.string.place_tech_restaurant), context.getString(R.string.category_restaurant), context.getString(R.string.place_address_5)),
+            Place(6, context.getString(R.string.place_tech_pub), context.getString(R.string.category_pub), context.getString(R.string.place_address_6)),
+            Place(7, context.getString(R.string.place_campus_cafe), context.getString(R.string.category_cafe), context.getString(R.string.place_address_7)),
+            Place(8, context.getString(R.string.place_campus_restaurant), context.getString(R.string.category_restaurant), context.getString(R.string.place_address_8)),
+            Place(9, context.getString(R.string.place_campus_pub), context.getString(R.string.category_pub), context.getString(R.string.place_address_9))
+        )
+
+        initialPlaces.forEach { place ->
+            val values = ContentValues().apply {
+                put("name", place.name)
+                put("category", place.category)
+                put("address", place.address)
+            }
+            db?.insert("PlaceTable", null, values)
+        }
+    }
+
+    fun getAllPlaces(): MutableList<Place> {
+        val db = readableDatabase
+        val cursor: Cursor = db.rawQuery("SELECT * FROM PlaceTable", null)
+        val places = mutableListOf<Place>()
+        if (cursor.moveToFirst()) {
+            do {
+                val idx = cursor.getInt(cursor.getColumnIndexOrThrow("idx"))
+                val name = cursor.getString(cursor.getColumnIndexOrThrow("name"))
+                val category = cursor.getString(cursor.getColumnIndexOrThrow("category"))
+                val address = cursor.getString(cursor.getColumnIndexOrThrow("address"))
+                places.add(Place(idx, name, category, address))
+            } while (cursor.moveToNext())
+        }
+        cursor.close()
+        return places
+    }
+}

app/src/main/java/campus/tech/kakao/map/SearchHistoryDBHelper.kt

@@ -0,0 +1,63 @@
+package campus.tech.kakao.map
+
+import android.content.ContentValues
+import android.content.Context
+import android.database.Cursor
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+class SearchHistoryDBHelper(context: Context) : SQLiteOpenHelper(context, "SearchHistory.db", null, 1) {
+
+    override fun onCreate(db: SQLiteDatabase?) {
+        createSearchHistoryTable(db)
+    }
+
+    override fun onUpgrade(db: SQLiteDatabase?, oldVersion: Int, newVersion: Int) {
+        db?.execSQL("DROP TABLE IF EXISTS SearchHistoryTable")
+        onCreate(db)
+    }
+
+    private fun createSearchHistoryTable(db: SQLiteDatabase?) {
+        val searchHistoryTableSQL = """
+            CREATE TABLE SearchHistoryTable (
+                idx INTEGER PRIMARY KEY AUTOINCREMENT,
+                name TEXT NOT NULL,
+                category TEXT NOT NULL,
+                address TEXT NOT NULL,
+                timestamp DATETIME DEFAULT CURRENT_TIMESTAMP
+            )
+        """
+        db?.execSQL(searchHistoryTableSQL)
+    }
+
+    fun insertSearchHistory(place: Place): Long {
+        val db = writableDatabase
+        val values = ContentValues().apply {
+            put("name", place.name)
+            put("category", place.category)
+            put("address", place.address)
+        }
+        return db.insert("SearchHistoryTable", null, values)
+    }
+
+    fun deleteSearchHistoryByName(name: String): Int {
+        val db = writableDatabase
+        return db.delete("SearchHistoryTable", "`name` = ?", arrayOf(name))
+    }
+
+    fun getAllSearchHistory(): MutableList<Place> {
+        val db = readableDatabase
+        val cursor: Cursor = db.rawQuery("SELECT * FROM SearchHistoryTable ORDER BY timestamp DESC", null)
+        val searchHistory = mutableListOf<Place>()
+        if (cursor.moveToFirst()) {
+            do {
+                val idx = cursor.getInt(cursor.getColumnIndexOrThrow("idx"))
+                val name = cursor.getString(cursor.getColumnIndexOrThrow("name"))
+                val category = cursor.getString(cursor.getColumnIndexOrThrow("category"))
+                val address = cursor.getString(cursor.getColumnIndexOrThrow("address"))
+                searchHistory.add(Place(idx, name, category, address))
+            } while (cursor.moveToNext())
+        }
+        cursor.close()
+        return searchHistory
+    }
+}

app/src/main/java/campus/tech/kakao/map/SearchHistoryRecyclerViewAdapter.kt

@@ -0,0 +1,33 @@
+package campus.tech.kakao.map
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+
+class SearchHistoryRecyclerViewAdapter(
+    private var searchHistory: MutableList<Place>,
+    private val onItemClick: (Int) -> Unit,
+    private val onItemDelete: (Int) -> Unit
+) : RecyclerView.Adapter<SearchHistoryRecyclerViewAdapter.ViewHolder>() {
+    class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val searchHistoryBtn: TextView = itemView.findViewById(R.id.search_history_item)
+        val searchHistoryDeleteBtn: ImageView = itemView.findViewById(R.id.search_history_delete_button)
+    }
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_search_history, parent, false)
+        return ViewHolder(view)
+    }
+    override fun onBindViewHolder(holder: ViewHolder, index: Int) {
+        holder.searchHistoryBtn.text = searchHistory[index].name
+        holder.searchHistoryBtn.setOnClickListener { onItemClick(index) }
+        holder.searchHistoryDeleteBtn.setOnClickListener {
+            onItemDelete(index)
+            notifyItemRemoved(index)
+            notifyItemRangeChanged(index, searchHistory.size);
+        }
+    }
+    override fun getItemCount(): Int { return searchHistory.size }
+}

app/src/main/res/drawable/search_bar_background.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FFFFFF"/>
+    <corners android:radius="8dp"/>
+    <stroke
+        android:width="1dp"
+        android:color="#D1D1D1"/>
+</shape>

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

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#FAF9F7"
+    android:orientation="vertical"
+    tools:context=".SearchActivity">
+
+    <androidx.appcompat.widget.SearchView
+        android:id="@+id/search_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        android:queryHint="@string/enter_keyword_label"
+        android:iconifiedByDefault="false"/>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/horizontal_recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="8dp"
+        android:orientation="horizontal"/>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:padding="8dp"
+        android:visibility="gone"/>
+
+    <TextView
+        android:id="@+id/no_results"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/no_search_result_label"
+        android:textColor="#9E9E9E"
+        android:textSize="16sp"
+        android:visibility="visible"
+        android:gravity="center"/>
+
+</LinearLayout>

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

@@ -1,3 +1,30 @@
 <resources>
     <string name="app_name">Map</string>
+    <string name="enter_keyword_label">검색어를 입력해 주세요.</string>
+    <string name="no_search_result_label">검색 결과가 없습니다.</string>
+
+    <string name="place_kakao_cafe">카카오 카페</string>
+    <string name="place_kakao_restaurant">카카오 식당</string>
+    <string name="place_kakao_pub">카카오 포차</string>
+    <string name="place_tech_cafe">테크 카페</string>
+    <string name="place_tech_restaurant">테크 식당</string>
+    <string name="place_tech_pub">테크 포차</string>
+    <string name="place_campus_cafe">캠퍼스 카페</string>
+    <string name="place_campus_restaurant">캠퍼스 식당</string>
+    <string name="place_campus_pub">캠퍼스 포차</string>
+
+    <string name="category_cafe">카페</string>
+    <string name="category_restaurant">식당</string>
+    <string name="category_pub">주점</string>
+
+    <string name="place_address_1">금정구 1</string>
+    <string name="place_address_2">금정구 2</string>
+    <string name="place_address_3">금정구 3</string>
+    <string name="place_address_4">금정구 4</string>
+    <string name="place_address_5">금정구 5</string>
+    <string name="place_address_6">금정구 6</string>
+    <string name="place_address_7">금정구 7</string>
+    <string name="place_address_8">금정구 8</string>
+    <string name="place_address_9">금정구 9</string>
+
 </resources>