전남대 Android_장수민_3주차 과제(1단계)

README.md

@@ -1 +1,19 @@
 # android-map-search
+
+### 기능 요구 사항
+이전 단계와 기능은 비슷하나 **카카오로컬 API**를 사용한다.
+
+- 검색어를 입력하면 검색 결과가 15개 이상 표시된다.
+- 검색 결과 목록은 세로 스크롤이 된다.
+- 입력한 검색어는 X를 눌러서 삭제할 수 있다.
+- 검색 결과 목록에서 하나의 항목을 선택할 수 있다.
+- 선택된 항목은 검색어 저장 목록에 추가된다.
+- 저장된 검색어 목록은 가로 스크롤이 된다.
+- 저장된 검색어는 X를 눌러서 삭제할 수 있다.
+- 저장된 검색어는 앱을 재실행하여도 유지된다.
+
+### 프로그래밍 요구 사항
+- 검색 데이터는 카카오로컬 API를 사용한다.
+- 카카오 API 사용을 위한 앱 키를 외부에 노출하지 않는다.
+- 가능한 MVVM 아키텍처 패턴을 적용하도록 한다.
+- 코드 컨벤션을 준수하며 프로그래밍한다.

app/build.gradle.kts

@@ -1,3 +1,5 @@
+import com.android.build.gradle.internal.cxx.configure.gradleLocalProperties
+
 plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
@@ -15,6 +17,9 @@ android {
         versionCode = 1
         versionName = "1.0"
 
+        resValue("string", "kakao_api_key", getApiKey("KAKAO_API_KEY"))
+        buildConfigField("String", "KAKAO_REST_API_KEY", getApiKey("KAKAO_REST_API_KEY"))
+
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
@@ -37,6 +42,7 @@ android {
 
     buildFeatures {
         viewBinding = true
+        buildConfig = true
     }
 }
 
@@ -61,3 +67,4 @@ dependencies {
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
 }
+fun getApiKey(key: String): String = gradleLocalProperties(rootDir, providers).getProperty(key)

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

@@ -1,9 +1,10 @@
 package campus.tech.kakao.map
 
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.text.Editable
 import android.text.TextWatcher
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import androidx.activity.viewModels
@@ -18,15 +19,14 @@ class MainActivity : AppCompatActivity() {
     }
 
     private val placeAdapter: PlaceAdapter by lazy {
-        PlaceAdapter(placeList,
+        PlaceAdapter(locationList,
             LayoutInflater.from(this@MainActivity),
             object :
                 PlaceAdapter.OnItemClickListener {
                 override fun onItemClick(position: Int) {
                     val item = placeAdapter.getItem(position)
-                    val searchHistory = SearchHistory(item.name)
+                    val searchHistory = SearchHistory(item.placeName)
                     viewModel.saveSearchHistory(searchHistory)
-                    Log.d("실행", "저장")
                 }
             }
         )
@@ -41,12 +41,10 @@ class MainActivity : AppCompatActivity() {
                     val item = viewModel.searchHistoryList.value?.get(position)
                     if (item != null) {
                         mainBinding.search.setText(item.searchHistory)
-                        Log.d("실행", "검색창")
                     }
                 }
                 override fun onXMarkClick(position: Int) {
                     viewModel.deleteSearchHistory(position)
-                    Log.d("실행", "삭제")
                 }
             }
         )
@@ -57,6 +55,7 @@ class MainActivity : AppCompatActivity() {
 
     private var placeList: List<Place> = emptyList()
 
+    private var locationList: List<Document> = emptyList()
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         mainBinding = ActivityMainBinding.inflate(layoutInflater)
@@ -91,15 +90,21 @@ class MainActivity : AppCompatActivity() {
 
     private fun setupSearchEditText(mainBinding: ActivityMainBinding) {
         val searchEditText = mainBinding.search
+        val handler = Handler(Looper.getMainLooper())
+        val delayMillis = 800L
 
         searchEditText.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) {}
 
             override fun afterTextChanged(s: Editable?) {
-                val searchText = searchEditText.text.toString()
-                viewModel.getSearchResult(searchText)
+                val searchText = s.toString().trim()
+
+                handler.removeCallbacksAndMessages(null)
+                handler.postDelayed({
+                    viewModel.getPlace(searchText)
+                }, delayMillis)
             }
         })
     }
@@ -110,7 +115,7 @@ class MainActivity : AppCompatActivity() {
         })
         viewModel.getSearchHistoryList()
 
-        viewModel.placeList.observe(this@MainActivity, Observer {
+        viewModel.locationList.observe(this@MainActivity, Observer {
             placeAdapter.setData(it)
             mainBinding.emptyMainText.visibility = if (it.isNullOrEmpty()) View.VISIBLE else View.GONE
         })

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

@@ -1,9 +1,14 @@
 package campus.tech.kakao.map
 
 import android.content.Context
+import android.util.Log
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import campus.tech.kakao.map.RetrofitInstance.retrofitService
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
 
 class MainViewModel(context: Context) : ViewModel() {
     private val dbHelper: DBHelper = DBHelper(context)
@@ -12,6 +17,7 @@ class MainViewModel(context: Context) : ViewModel() {
 
     private var _placeList = MutableLiveData<List<Place>>()
     private val _searchHistoryList = MutableLiveData<List<SearchHistory>>()
+    private var _locationList = MutableLiveData<List<Document>>()
 
     init {
         _searchHistoryList.value = getSearchHistory()
@@ -23,6 +29,9 @@ class MainViewModel(context: Context) : ViewModel() {
     val placeList: LiveData<List<Place>>
         get() = _placeList
 
+    val locationList: LiveData<List<Document>>
+        get() = _locationList
+
     fun insertPlace(place: Place) {
         dbHelper.insert(db, place)
     }
@@ -75,4 +84,33 @@ class MainViewModel(context: Context) : ViewModel() {
         preferenceManager.deleteArrayListItem(Constants.SEARCH_HISTORY_KEY, position)
         getSearchHistoryList()
     }
+
+    fun getPlace(query: String) {
+        if (query.isEmpty()) {
+            _locationList.value = emptyList()
+        } else {
+            retrofitService.getPlaces("KakaoAK "+BuildConfig.KAKAO_REST_API_KEY, query).enqueue(object : Callback<Location> {
+                override fun onResponse(
+                    call: Call<Location>,
+                    response: Response<Location>
+                ) {
+                    if (response.isSuccessful) {
+                        val body = response.body()
+                        if (body != null) {
+                            _locationList.postValue(body.documents)
+                            Log.d("성공", ""+ body.documents)
+                        } else {
+                            _locationList.postValue(emptyList())
+                        }
+                    } else {
+                        Log.d("태그",response.code().toString())
+                    }
+                }
+
+                override fun onFailure(call: Call<Location>, t: Throwable) {
+                    Log.d("error", ""+ t)
+                }
+            })
+        }
+    }
 }

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

@@ -1,7 +1,42 @@
 package campus.tech.kakao.map
 
+import com.google.gson.annotations.SerializedName
 data class Place (
     val name: String,
     val address: String,
     val category: String,
+)
+
+// API
+data class Location (
+    @SerializedName("documents") val documents: List<Document>,
+    @SerializedName("meta") val meta: Meta
+)
+
+data class Document (
+    @SerializedName("address_name") val addressName: String,
+    @SerializedName("category_group_code") val categoryGroupCode: String,
+    @SerializedName("category_group_name") val categoryGroupName: String,
+    @SerializedName("category_name") val categoryName: String,
+    @SerializedName("distance") val distance: String,
+    @SerializedName("id") val id: String,
+    @SerializedName("phone") val phone: String,
+    @SerializedName("place_name") val placeName: String,
+    @SerializedName("place_url") val placeUrl: String,
+    @SerializedName("road_address_name") val roadAddressName: String,
+    @SerializedName("x") val x: String,
+    @SerializedName("y") val y: String
+)
+
+data class Meta(
+    @SerializedName("is_end") val isEnd: Boolean,
+    @SerializedName("pageable_count") val pageableCount: Int,
+    @SerializedName("same_name") val sameName: SameName,
+    @SerializedName("total_count") val totalCount: Int
+)
+
+data class SameName(
+    @SerializedName("keyword") val keyword: String,
+    @SerializedName("region") val region: List<String>,
+    @SerializedName("selected_region") val selectedRegion: String
 )

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

@@ -10,7 +10,7 @@ import android.widget.TextView
 import androidx.appcompat.content.res.AppCompatResources
 import androidx.recyclerview.widget.RecyclerView
 
-class PlaceAdapter(var items: List<Place>, val inflater: LayoutInflater, var itemClickListener: OnItemClickListener): RecyclerView.Adapter<PlaceAdapter.PlaceViewHolder>() {
+class PlaceAdapter(var items: List<Document>, val inflater: LayoutInflater, var itemClickListener: OnItemClickListener): RecyclerView.Adapter<PlaceAdapter.PlaceViewHolder>() {
 
     interface OnItemClickListener {
         fun onItemClick(position: Int) {}
@@ -25,21 +25,27 @@ class PlaceAdapter(var items: List<Place>, val inflater: LayoutInflater, var ite
     }
 
     override fun onBindViewHolder(holder: PlaceAdapter.PlaceViewHolder, position: Int) {
-        holder.name.text = items[position].name
-        holder.address.text = items[position].address
-        holder.category.text = items[position].category
+        holder.name.text = items[position].placeName
+        holder.address.text = items[position].addressName
+        holder.category.text = getLastCategory(items[position].categoryName)
     }
 
     override fun getItemCount(): Int {
         return items.size
     }
 
-    fun setData(searchResults: List<Place>) {
+    private fun getLastCategory(input: String): String {
+        val categories = input.split(">")
+        val lastCategory = categories.lastOrNull()?.trim()
+
+        return lastCategory ?: ""
+    }
+    fun setData(searchResults: List<Document>) {
         items = searchResults
         notifyDataSetChanged()
     }
 
-    fun getItem(position: Int): Place {
+    fun getItem(position: Int): Document {
         return items[position]
     }
 

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

@@ -0,0 +1,12 @@
+package campus.tech.kakao.map
+
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+
+object RetrofitInstance {
+    val retrofitService = Retrofit.Builder()
+        .baseUrl("https://dapi.kakao.com/v2/local/search/")
+        .addConverterFactory(GsonConverterFactory.create())
+        .build()
+        .create(RetrofitService::class.java)
+}

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

@@ -0,0 +1,15 @@
+package campus.tech.kakao.map
+
+import com.google.gson.internal.GsonBuildConfig
+import retrofit2.Call
+import retrofit2.http.GET
+import retrofit2.http.Header
+import retrofit2.http.Query
+
+interface RetrofitService {
+    @GET("keyword")
+    fun getPlaces(
+        @Header("Authorization") authorization: String = "KakaoAK "+BuildConfig.KAKAO_REST_API_KEY ,
+        @Query("query") query: String
+    ): Call<Location>
+}

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

@@ -5,7 +5,7 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:paddingHorizontal="20dp"
+    android:paddingHorizontal="15dp"
     tools:context=".MainActivity">
 
     <EditText

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

@@ -3,7 +3,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:padding="10dp">
+    android:padding="5dp">
 
     <ImageView
         android:id="@+id/marker"
@@ -23,6 +23,7 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toTopOf="@id/address"
         android:layout_marginStart="10dp"
+        android:maxLines="1"
         android:text="place"
         android:textSize="17sp"
         />