✨ PagingDataSource 캐싱 처리

Author: soopeach

data/src/main/java/com/whyranoid/data/post/PostRepositoryImpl.kt

@@ -23,12 +23,12 @@ class PostRepositoryImpl @Inject constructor(
         }.flow.cachedIn(coroutineScope)
     }
 
-    override fun getMyPagingPosts(uid: String): Flow<PagingData<Post>> {
+    override fun getMyPagingPosts(uid: String, coroutineScope: CoroutineScope): Flow<PagingData<Post>> {
         return Pager(
             PagingConfig(pageSize = 5)
         ) {
             PostPagingDataSource(myUid = uid, postDataSource)
-        }.flow
+        }.flow.cachedIn(coroutineScope)
     }
 
     override fun getAllPostFlow(): Flow<List<Post>> {

domain/src/main/java/com/whyranoid/domain/repository/PostRepository.kt

@@ -11,7 +11,7 @@ interface PostRepository {
     // 글(홍보 / 인증) 페이징으로 가져오기 - 리모트
     fun getPagingPosts(coroutineScope: CoroutineScope): Flow<PagingData<Post>>
 
-    fun getMyPagingPosts(uid: String): Flow<PagingData<Post>>
+    fun getMyPagingPosts(uid: String, coroutineScope: CoroutineScope): Flow<PagingData<Post>>
 
     fun getAllPostFlow(): Flow<List<Post>>
 

domain/src/main/java/com/whyranoid/domain/usecase/GetMyPagingPostsUseCase.kt

@@ -4,6 +4,7 @@ import androidx.paging.PagingData
 import com.whyranoid.domain.model.Post
 import com.whyranoid.domain.repository.AccountRepository
 import com.whyranoid.domain.repository.PostRepository
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
 import javax.inject.Inject
 
@@ -12,7 +13,7 @@ class GetMyPagingPostsUseCase @Inject constructor(
     private val postRepository: PostRepository
 ) {
 
-    suspend operator fun invoke(): Flow<PagingData<Post>> {
-        return postRepository.getMyPagingPosts(accountRepository.getUid())
+    suspend operator fun invoke(coroutineScope: CoroutineScope): Flow<PagingData<Post>> {
+        return postRepository.getMyPagingPosts(accountRepository.getUid(), coroutineScope)
     }
 }

presentation/src/main/java/com/whyranoid/presentation/community/CommunityItemFragment.kt

@@ -181,7 +181,7 @@ internal class CommunityItemFragment :
             }
 
             viewLifecycleOwner.repeatWhenUiStarted {
-                viewModel.getMyPagingPostsUseCase().collectLatest { myPostList ->
+                viewModel.getMyPagingPostsUseCase(viewLifecycleOwner.lifecycleScope).collectLatest { myPostList ->
                     postAdapter.submitData(myPostList)
                 }
             }