[AN/USER] refactor: LiveData to Flow 리팩터링 (티켓 목록, 티켓 예매, 티켓 기록, 홈화면) (#…

…495) * refactor: TicketList uiState StateFlow 로 변경 * refactor: TicketListFragment 에서 uiState 를 수집하도록 변경 * refactor: TicketList 에서 event 가 sharedFlow 사용하도록 변경 * refactor: Flow 적용 테스트 리팩터링 * refactor: 티켓 제시 이벤트 테스트 리팩터링 * refactor: 티켓 예매 화면 uiState 에 StateFlow 적용 * refactor: 티켓 예매 화면 event 에 SharedFlow 적용 * refactor: 티켓 예매 화면 테스트 리팩터링 * refactor: 티켓 목록 화면 테스트 이벤트 취소 로직 추가 * refactor: 티켓 기록 화면 uiState StateFlow 로 리팩터링 * refactor: 티켓 기록 화면 테스트 리팩터링 * refactor: 홈 화면 event SharedFlow 적용 * refactor: 홈 화면 테스트 event sharedFlow 리팩터링 * refactor: 테스트에서 cancelAndIgnoreRemainingEvents 제거 * refactor: uiState 가 더 이상 nullable 하지 않음 반영
woowacourse-teams · Oct 17, 2023 · c5d3472 · c5d3472
1 parent 55aea7e
commit c5d3472
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Showing 14 changed files with 224 additions and 183 deletions.
diff --git a/android/festago/app/src/main/java/com/festago/festago/presentation/ui/home/HomeActivity.kt b/android/festago/app/src/main/java/com/festago/festago/presentation/ui/home/HomeActivity.kt
@@ -12,6 +12,7 @@ import com.festago.festago.presentation.ui.home.festivallist.FestivalListFragmen
 import com.festago.festago.presentation.ui.home.mypage.MyPageFragment
 import com.festago.festago.presentation.ui.home.ticketlist.TicketListFragment
 import com.festago.festago.presentation.ui.signin.SignInActivity
+import com.festago.festago.presentation.util.repeatOnStarted
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
@@ -48,12 +49,14 @@ class HomeActivity : AppCompatActivity() {
     }
 
     private fun initObserve() {
-        vm.event.observe(this) { event ->
-            when (event) {
-                is HomeEvent.ShowFestivalList -> showFestivalList()
-                is HomeEvent.ShowTicketList -> showTicketList()
-                is HomeEvent.ShowMyPage -> showMyPage()
-                is HomeEvent.ShowSignIn -> showSignIn()
+        repeatOnStarted(this) {
+            vm.event.collect { event ->
+                when (event) {
+                    is HomeEvent.ShowFestivalList -> showFestivalList()
+                    is HomeEvent.ShowTicketList -> showTicketList()
+                    is HomeEvent.ShowMyPage -> showMyPage()
+                    is HomeEvent.ShowSignIn -> showSignIn()
+                }
             }
         }
     }

diff --git a/android/festago/app/src/main/java/com/festago/festago/presentation/ui/home/HomeViewModel.kt b/android/festago/app/src/main/java/com/festago/festago/presentation/ui/home/HomeViewModel.kt
@@ -1,27 +1,32 @@
 package com.festago.festago.presentation.ui.home
 
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
 import com.festago.festago.presentation.ui.home.HomeItemType.FESTIVAL_LIST
 import com.festago.festago.presentation.ui.home.HomeItemType.MY_PAGE
 import com.festago.festago.presentation.ui.home.HomeItemType.TICKET_LIST
-import com.festago.festago.presentation.util.MutableSingleLiveData
-import com.festago.festago.presentation.util.SingleLiveData
 import com.festago.festago.repository.AuthRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
 class HomeViewModel @Inject constructor(private val authRepository: AuthRepository) : ViewModel() {
 
-    private val _event = MutableSingleLiveData<HomeEvent>()
-    val event: SingleLiveData<HomeEvent> = _event
+    private val _event = MutableSharedFlow<HomeEvent>()
+    val event: SharedFlow<HomeEvent> = _event.asSharedFlow()
 
     fun loadHomeItem(homeItemType: HomeItemType) {
-        when {
-            homeItemType == FESTIVAL_LIST -> _event.setValue(HomeEvent.ShowFestivalList)
-            !authRepository.isSigned -> _event.setValue(HomeEvent.ShowSignIn)
-            homeItemType == TICKET_LIST -> _event.setValue(HomeEvent.ShowTicketList)
-            homeItemType == MY_PAGE -> _event.setValue(HomeEvent.ShowMyPage)
+        viewModelScope.launch {
+            when {
+                homeItemType == FESTIVAL_LIST -> _event.emit(HomeEvent.ShowFestivalList)
+                !authRepository.isSigned -> _event.emit(HomeEvent.ShowSignIn)
+                homeItemType == TICKET_LIST -> _event.emit(HomeEvent.ShowTicketList)
+                homeItemType == MY_PAGE -> _event.emit(HomeEvent.ShowMyPage)
+            }
         }
     }
 }
diff --git a/...p/src/main/java/com/festago/festago/presentation/ui/home/ticketlist/TicketListFragment.kt b/...p/src/main/java/com/festago/festago/presentation/ui/home/ticketlist/TicketListFragment.kt
@@ -12,6 +12,7 @@ import androidx.fragment.app.viewModels
 import com.festago.festago.R
 import com.festago.festago.databinding.FragmentTicketListBinding
 import com.festago.festago.presentation.ui.ticketentry.TicketEntryActivity
+import com.festago.festago.presentation.util.repeatOnStarted
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
@@ -44,12 +45,16 @@ class TicketListFragment : Fragment(R.layout.fragment_ticket_list) {
     }
 
     private fun initObserve() {
-        vm.uiState.observe(viewLifecycleOwner) {
-            binding.uiState = it
-            updateUi(it)
+        repeatOnStarted(viewLifecycleOwner) {
+            vm.uiState.collect {
+                binding.uiState = it
+                updateUi(it)
+            }
         }
-        vm.event.observe(viewLifecycleOwner) { event ->
-            handleEvent(event)
+        repeatOnStarted(viewLifecycleOwner) {
+            vm.event.collect { event ->
+                handleEvent(event)
+            }
         }
     }
 

diff --git a/.../src/main/java/com/festago/festago/presentation/ui/home/ticketlist/TicketListViewModel.kt b/.../src/main/java/com/festago/festago/presentation/ui/home/ticketlist/TicketListViewModel.kt
@@ -1,15 +1,17 @@
 package com.festago.festago.presentation.ui.home.ticketlist
 
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.festago.festago.analytics.AnalyticsHelper
 import com.festago.festago.analytics.logNetworkFailure
-import com.festago.festago.presentation.util.MutableSingleLiveData
-import com.festago.festago.presentation.util.SingleLiveData
 import com.festago.festago.repository.TicketRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -19,11 +21,11 @@ class TicketListViewModel @Inject constructor(
     private val analyticsHelper: AnalyticsHelper,
 ) : ViewModel() {
 
-    private val _uiState = MutableLiveData<TicketListUiState>(TicketListUiState.Loading)
-    val uiState: LiveData<TicketListUiState> = _uiState
+    private val _uiState = MutableStateFlow<TicketListUiState>(TicketListUiState.Loading)
+    val uiState: StateFlow<TicketListUiState> = _uiState.asStateFlow()
 
-    private val _event = MutableSingleLiveData<TicketListEvent>()
-    val event: SingleLiveData<TicketListEvent> = _event
+    private val _event = MutableSharedFlow<TicketListEvent>()
+    val event: SharedFlow<TicketListEvent> = _event.asSharedFlow()
 
     fun loadCurrentTickets() {
         viewModelScope.launch {
@@ -40,7 +42,9 @@ class TicketListViewModel @Inject constructor(
     }
 
     fun showTicketEntry(ticketId: Long) {
-        _event.setValue(TicketListEvent.ShowTicketEntry(ticketId))
+        viewModelScope.launch {
+            _event.emit(TicketListEvent.ShowTicketEntry(ticketId))
+        }
     }
 
     companion object {

diff --git a/.../src/main/java/com/festago/festago/presentation/ui/tickethistory/TicketHistoryActivity.kt b/.../src/main/java/com/festago/festago/presentation/ui/tickethistory/TicketHistoryActivity.kt
@@ -6,6 +6,7 @@ import android.os.Bundle
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import com.festago.festago.databinding.ActivityTicketHistoryBinding
+import com.festago.festago.presentation.util.repeatOnStarted
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
@@ -30,17 +31,19 @@ class TicketHistoryActivity : AppCompatActivity() {
     }
 
     private fun initObserve() {
-        vm.uiState.observe(this) { uiState ->
-            when (uiState) {
-                is TicketHistoryUiState.Loading,
-                is TicketHistoryUiState.Error,
-                -> Unit
-
-                is TicketHistoryUiState.Success -> {
-                    adapter.submitList(uiState.tickets)
+        repeatOnStarted(this) {
+            vm.uiState.collect { uiState ->
+                when (uiState) {
+                    is TicketHistoryUiState.Loading,
+                    is TicketHistoryUiState.Error,
+                    -> Unit
+
+                    is TicketHistoryUiState.Success -> {
+                        adapter.submitList(uiState.tickets)
+                    }
                 }
+                binding.uiState = uiState
             }
-            binding.uiState = uiState
         }
     }
 

diff --git a/...src/main/java/com/festago/festago/presentation/ui/tickethistory/TicketHistoryViewModel.kt b/...src/main/java/com/festago/festago/presentation/ui/tickethistory/TicketHistoryViewModel.kt
@@ -1,13 +1,14 @@
 package com.festago.festago.presentation.ui.tickethistory
 
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.festago.festago.analytics.AnalyticsHelper
 import com.festago.festago.analytics.logNetworkFailure
 import com.festago.festago.repository.TicketRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -17,14 +18,13 @@ class TicketHistoryViewModel @Inject constructor(
     private val analyticsHelper: AnalyticsHelper,
 ) : ViewModel() {
 
-    private val _uiState = MutableLiveData<TicketHistoryUiState>()
-    val uiState: LiveData<TicketHistoryUiState> = _uiState
+    private val _uiState = MutableStateFlow<TicketHistoryUiState>(TicketHistoryUiState.Loading)
+    val uiState: StateFlow<TicketHistoryUiState> = _uiState.asStateFlow()
 
-    fun loadTicketHistories(size: Int = 100, refresh: Boolean = false) {
+    fun loadTicketHistories(size: Int = SIZE_TICKET_HISTORY, refresh: Boolean = false) {
         if (!refresh && uiState.value is TicketHistoryUiState.Success) return
 
         viewModelScope.launch {
-            _uiState.value = TicketHistoryUiState.Loading
             ticketRepository.loadHistoryTickets(size)
                 .onSuccess { tickets ->
                     _uiState.value = TicketHistoryUiState.Success(
@@ -42,5 +42,6 @@ class TicketHistoryViewModel @Inject constructor(
 
     companion object {
         private const val KEY_LOAD_TICKET_HISTORIES_LOG = "ticket_histories"
+        private const val SIZE_TICKET_HISTORY = 100
     }
 }
diff --git a/.../src/main/java/com/festago/festago/presentation/ui/ticketreserve/TicketReserveActivity.kt b/.../src/main/java/com/festago/festago/presentation/ui/ticketreserve/TicketReserveActivity.kt
@@ -22,6 +22,7 @@ import com.festago.festago.presentation.ui.ticketreserve.adapter.TicketReserveAd
 import com.festago.festago.presentation.ui.ticketreserve.adapter.TicketReserveHeaderAdapter
 import com.festago.festago.presentation.ui.ticketreserve.bottomsheet.BottomSheetReservationTicketArg
 import com.festago.festago.presentation.ui.ticketreserve.bottomsheet.TicketReserveBottomSheetFragment
+import com.festago.festago.presentation.util.repeatOnStarted
 import dagger.hilt.android.AndroidEntryPoint
 import java.time.LocalDateTime
 import java.time.format.DateTimeFormatter
@@ -53,12 +54,16 @@ class TicketReserveActivity : AppCompatActivity() {
     }
 
     private fun initObserve() {
-        vm.uiState.observe(this) { uiState ->
-            updateUi(uiState)
-            binding.uiState = uiState
+        repeatOnStarted(this) {
+            vm.uiState.collect { uiState ->
+                updateUi(uiState)
+                binding.uiState = uiState
+            }
         }
-        vm.event.observe(this) { event ->
-            handleEvent(event)
+        repeatOnStarted(this) {
+            vm.event.collect { event ->
+                handleEvent(event)
+            }
         }
     }
 
@@ -89,7 +94,7 @@ class TicketReserveActivity : AppCompatActivity() {
                     id = it.id,
                     remainAmount = it.remainAmount,
                     ticketType = it.ticketType,
-                    totalAmount = it.totalAmount
+                    totalAmount = it.totalAmount,
                 )
             },
         ).show(supportFragmentManager, TicketReserveBottomSheetFragment::class.java.name)

diff --git a/...src/main/java/com/festago/festago/presentation/ui/ticketreserve/TicketReserveViewModel.kt b/...src/main/java/com/festago/festago/presentation/ui/ticketreserve/TicketReserveViewModel.kt
@@ -1,19 +1,21 @@
 package com.festago.festago.presentation.ui.ticketreserve
 
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.festago.festago.analytics.AnalyticsHelper
 import com.festago.festago.analytics.logNetworkFailure
 import com.festago.festago.model.ReservationStage
-import com.festago.festago.presentation.util.MutableSingleLiveData
-import com.festago.festago.presentation.util.SingleLiveData
 import com.festago.festago.repository.AuthRepository
 import com.festago.festago.repository.FestivalRepository
 import com.festago.festago.repository.ReservationTicketRepository
 import com.festago.festago.repository.TicketRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
 import java.time.LocalDateTime
 import javax.inject.Inject
@@ -26,28 +28,26 @@ class TicketReserveViewModel @Inject constructor(
     private val authRepository: AuthRepository,
     private val analyticsHelper: AnalyticsHelper,
 ) : ViewModel() {
-    private val _uiState = MutableLiveData<TicketReserveUiState>(TicketReserveUiState.Loading)
-    val uiState: LiveData<TicketReserveUiState> = _uiState
+    private val _uiState = MutableStateFlow<TicketReserveUiState>(TicketReserveUiState.Loading)
+    val uiState: StateFlow<TicketReserveUiState> = _uiState.asStateFlow()
 
-    private val _event = MutableSingleLiveData<TicketReserveEvent>()
-    val event: SingleLiveData<TicketReserveEvent> = _event
+    private val _event = MutableSharedFlow<TicketReserveEvent>()
+    val event: SharedFlow<TicketReserveEvent> = _event.asSharedFlow()
 
     fun loadReservation(festivalId: Long = 0, refresh: Boolean = false) {
         if (!refresh && uiState.value is TicketReserveUiState.Success) return
         viewModelScope.launch {
             festivalRepository.loadFestivalDetail(festivalId)
                 .onSuccess {
-                    _uiState.setValue(
-                        TicketReserveUiState.Success(
-                            festival = ReservationFestivalUiState(
-                                id = it.id,
-                                name = it.name,
-                                thumbnail = it.thumbnail,
-                                endDate = it.endDate,
-                                startDate = it.startDate,
-                            ),
-                            stages = it.reservationStages.toTicketReserveItems(),
+                    _uiState.value = TicketReserveUiState.Success(
+                        festival = ReservationFestivalUiState(
+                            id = it.id,
+                            name = it.name,
+                            thumbnail = it.thumbnail,
+                            endDate = it.endDate,
+                            startDate = it.startDate,
                         ),
+                        stages = it.reservationStages.toTicketReserveItems(),
                     )
                 }.onFailure {
                     _uiState.value = TicketReserveUiState.Error
@@ -64,17 +64,17 @@ class TicketReserveViewModel @Inject constructor(
             if (authRepository.isSigned) {
                 reservationTicketRepository.loadTicketTypes(stageId)
                     .onSuccess { tickets ->
-                        _event.setValue(
+                        _event.emit(
                             TicketReserveEvent.ShowTicketTypes(
                                 stageStartTime,
                                 tickets,
                             ),
                         )
                     }.onFailure {
-                        _uiState.setValue(TicketReserveUiState.Error)
+                        _uiState.value = TicketReserveUiState.Error
                     }
             } else {
-                _event.setValue(TicketReserveEvent.ShowSignIn)
+                _event.emit(TicketReserveEvent.ShowSignIn)
             }
         }
     }
@@ -83,9 +83,9 @@ class TicketReserveViewModel @Inject constructor(
         viewModelScope.launch {
             ticketRepository.reserveTicket(ticketId)
                 .onSuccess {
-                    _event.setValue(TicketReserveEvent.ReserveTicketSuccess(it))
+                    _event.emit(TicketReserveEvent.ReserveTicketSuccess(it))
                 }.onFailure {
-                    _event.setValue(TicketReserveEvent.ReserveTicketFailed)
+                    _event.emit(TicketReserveEvent.ReserveTicketFailed)
                 }
         }
     }