안드로이드 5주차 과제 (서버 통신)

app/build.gradle.kts

@@ -67,4 +67,10 @@ dependencies {
 
     implementation ("io.coil-kt:coil:1.2.0")
     implementation ("io.coil-kt:coil-svg:1.2.0")
+
+    implementation ("androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1")
+
+// ViewModel 생성함수를 편하게 사용하고 싶다면?
+    implementation ("androidx.fragment:fragment-ktx:1.5.3")
+    implementation ("androidx.activity:activity-ktx:1.6.0")
 }

app/src/main/java/com/example/gdsc/IntroductionViewModel.kt

@@ -0,0 +1,36 @@
+package com.example.gdsc
+
+import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import retrofit2.Call
+import retrofit2.Response
+
+class IntroductionViewModel : ViewModel() {
+    private val _getMember: MutableLiveData<List<MemberDto>> = MutableLiveData()  //read, write
+    val getMember: LiveData<List<MemberDto>> = _getMember //read
+    private val getMemberService = ServicePool.getMember
+
+    init {
+        getMember()
+    }
+
+    private fun getMember() {
+        getMemberService.getMember().enqueue(object : retrofit2.Callback<List<MemberDto>> {
+            override fun onResponse(
+                call: Call<List<MemberDto>>, response: Response<List<MemberDto>>
+            ) {
+                if (response.isSuccessful) {
+                    _getMember.value = response.body()
+                } else {
+                    Log.d("error", "실패한 응답")
+                }
+            }
+
+            override fun onFailure(call: Call<List<MemberDto>>, t: Throwable) {
+                t.message?.let { Log.d("error", it) } ?: "서버통신 실패(응답값 X)"
+            }
+        })
+    }
+}

app/src/main/java/com/example/gdsc/WeatherActivity.kt

@@ -0,0 +1,32 @@
+package com.example.gdsc
+
+import android.os.Bundle
+import android.util.Log
+
+class WeatherActivity {
+    private lateinit var binding: ActivityWeatherBinding
+    private val getWeatherService = WeatherServicePool.getWeather
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityWeatherBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+        getWeatherApi()
+    }
+    private fun getTodoApi() {
+        getWeatherService.getWeather().enqueue(object : retrofit2.Callback<List<WeatherDto>> {
+            override fun onResponse(
+                call: Call<List<WeatherDto>>, response: Response<List<WeatherDto>>
+            ) {
+                if (response.isSuccessful) {
+                    response.body()?.let { Log.d("result", it.toString()) }
+                } else {
+                    Log.d("error", "실패한 응답")
+                }
+            }
+
+            override fun onFailure(call: Call<List<WeatherDto>>, t: Throwable) {
+                t.message?.let { Log.d("error", it) } ?: "서버통신 실패(응답값 X)"
+            }
+        })
+    }
+}

app/src/main/java/com/example/gdsc/WeatherApiFactory.kt

@@ -0,0 +1,22 @@
+package com.example.gdsc
+
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import retrofit2.Retrofit
+
+object WeatherApiFactory {
+    private const val BASE_URL =
+        "apis.data.go.kr/1360000/VilageFcstInfoService_2.0/"
+
+    val retrofit: Retrofit by lazy {
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .addConverterFactory(Json.asConverterFactory("application/json".toMediaType()))
+            .build()
+    }
+}
+
+object WeatherServicePool {
+    val getWeather = WeatherApiFactory.retrofit.create(WeatherApiService::class.java)
+}

app/src/main/java/com/example/gdsc/WeatherApiService.kt

@@ -0,0 +1,24 @@
+package com.example.gdsc
+
+import retrofit2.Call
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface WeatherApiService {
+    @GET("/getUltraSrtNcst")
+    fun getUltraSrtNcst(
+        @Query("serviceKey") serviceKey: String = "YvHwazkj0CT00f2zDT9k3SW58W2KV4CVXA8%2BSopQPtYEMumI5QhItSGGbFMlCjruiZiFsS4nYcB0Oxfm2%2BKw3Q%3D%3D",
+        @Query("numOfRows") numOfRows : Int = 1,
+        @Query("pageNo") pageNo : Int = 1,
+        @Query("dataType") dataType : String = "JSON",
+        @Query("base_date") base_date : Int = 20231113,
+        @Query("base_time") base_time : Int = 0600,
+        @Query("nx") nx : Int = 55,
+        @Query("ny") ny : Int = 127
+    ): Call<List<WeatherDto>>
+}
+
+interface WeatherApiService {
+    @GET("/getUltraSrtNcst?serviceKey=YvHwazkj0CT00f2zDT9k3SW58W2KV4CVXA8")
+    fun getWeather(): Call<List<WeatherDto>>
+}

app/src/main/java/com/example/gdsc/WeatherDto.kt

@@ -0,0 +1,55 @@
+package com.example.gdsc
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class WeatherDto(
+    @SerialName("response")
+    val response: ResponseDto
+)
+
+@Serializable
+data class ResponseDto(
+    @SerialName("header")
+    val header: HeaderDto,
+    @SerialName("body")
+    val body: BodyDto
+)
+@Serializable
+data class HeaderDto(
+    @SerialName("resultCode")
+    val resultCode: Int,
+    @SerialName("resultMsg")
+    val resultMsg: String
+)
+
+@Serializable
+data class BodyDto(
+    @SerialName("dataType")
+    val dataType: String,
+    @SerialName("items")
+    val items: ItemDto,
+    @SerialName("pageNo")
+    val pageNo: Int,
+    @SerialName("numOfRows")
+    val numOfRows: Int,
+    @SerialName("totalCount")
+    val totalCount: Int,
+)
+
+@Serializable
+data class ItemDto(
+    @SerialName("base_date")
+    val base_date: Int,
+    @SerialName("base_time")
+    val base_time: Int,
+    @SerialName("category")
+    val category: String,
+    @SerialName("nx")
+    val nx: Int,
+    @SerialName("ny")
+    val ny: Int,
+    @SerialName("obsrValue")
+    val obsrValue: String
+)

app/src/main/java/com/example/gdsc/Week4Activity.kt

@@ -1,25 +1,33 @@
 package com.example.gdsc
 import android.os.Bundle
+import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.RecyclerView
-import java.lang.reflect.Member
-import android.util.Log
 import com.example.gdsc.databinding.ActivityWeek4Binding
-import retrofit2.Call
-import retrofit2.Response
 
 
 class Week4Activity : AppCompatActivity() {
 
     private lateinit var binding: ActivityWeek4Binding
-    private val getMemberService = ServicePool.getMember
+    // private val getMemberService = ServicePool.getMember
+    private val viewModel by viewModels<IntroductionViewModel>()
+
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivityWeek4Binding.inflate(layoutInflater)
         setContentView(binding.root)
-        getMemberApi()
+        observeGetMember()
+        //getMemberApi()
     }
 
+    private fun observeGetMember() {
+        viewModel.getMember.observe(this) { getMemberResult ->
+            val adapter = IntroductionAdapter()
+            binding.rvIntroductionGdscAndroid.adapter = adapter
+            adapter.submitList(getMemberResult)
+        }
+    }
+/*
     private fun getMemberApi() {
         val adapter = IntroductionAdapter()
         binding.rvIntroductionGdscAndroid.adapter = adapter
@@ -38,5 +46,5 @@ class Week4Activity : AppCompatActivity() {
                 t.message?.let { Log.d("error", it) } ?: "서버통신 실패(응답값 X)"
             }
         })
-    }
+    }*/
 }