feat: 사용자의 카카오 계정 닉네임을 마이페이지에 보여주는 기능 구현

android/app/src/main/java/com/now/naaga/presentation/mypage/MyPageActivity.kt

@@ -56,6 +56,7 @@ class MyPageActivity : AppCompatActivity(), AnalyticsDelegate by DefaultAnalytic
         viewModel.fetchRank()
         viewModel.fetchStatistics()
         viewModel.fetchPlaces()
+        viewModel.fetchNickname()
     }
 
     private fun subscribe() {
@@ -66,7 +67,9 @@ class MyPageActivity : AppCompatActivity(), AnalyticsDelegate by DefaultAnalytic
             val placesUiModel = places.map { it.toUiModel() }
             binding.customGridMypagePlaces.initContent(placesUiModel)
         }
-
+        viewModel.nickname.observe(this) { nickname ->
+            binding.tvMypageNickname.text = nickname
+        }
         viewModel.errorMessage.observe(this) { errorMessage ->
             if (NaagaThrowable.ServerConnectFailure().message == errorMessage) {
                 Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT).show()

android/app/src/main/java/com/now/naaga/presentation/mypage/MyPageViewModel.kt

@@ -1,8 +1,10 @@
 package com.now.naaga.presentation.mypage
 
+import android.util.Log
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import com.kakao.sdk.user.UserApiClient
 import com.now.domain.model.OrderType
 import com.now.domain.model.Place
 import com.now.domain.model.Rank
@@ -30,6 +32,9 @@ class MyPageViewModel(
     private val _errorMessage = MutableLiveData<String>()
     val errorMessage: LiveData<String> = _errorMessage
 
+    private val _nickname = MutableLiveData<String>()
+    val nickname: LiveData<String> = _nickname
+
     fun fetchRank() {
         rankRepository.getMyRank { result: Result<Rank> ->
             result
@@ -54,10 +59,27 @@ class MyPageViewModel(
         }
     }
 
+    fun fetchNickname() {
+        UserApiClient.instance.me { user, error ->
+            if (error != null) {
+                Log.d(KAKAO_USER_INFO_LOG_TAG, KAKAO_USER_INFO_FAIL_MESSAGE + error)
+            } else if (user != null) {
+                Log.d(KAKAO_USER_INFO_LOG_TAG, KAKAO_USER_INFO_SUCCESS_MESSAGE)
+                _nickname.value = user.kakaoAccount?.profile?.nickname.toString()
+            }
+        }
+    }
+
     private fun setErrorMessage(throwable: Throwable) {
         when (throwable) {
             is NaagaThrowable.ServerConnectFailure ->
                 _errorMessage.value = throwable.message
         }
     }
+
+    companion object {
+        private const val KAKAO_USER_INFO_LOG_TAG = "kakao user"
+        private const val KAKAO_USER_INFO_FAIL_MESSAGE = "사용자 정보 요청 실패"
+        private const val KAKAO_USER_INFO_SUCCESS_MESSAGE = "사용자 정보 요청 성공"
+    }
 }

android/app/src/main/res/layout/activity_my_page.xml

@@ -38,7 +38,6 @@
                 android:layout_marginStart="@dimen/space_default_large"
                 android:fontFamily="@font/pretendard_bold"
                 android:includeFontPadding="false"
-                android:text="@{viewModel.rank.player.nickname}"
                 android:textColor="@color/white"
                 android:textSize="52sp"
                 android:maxLines="1"