fix(creator): 커뮤니티 탭 하단 재평가를 보정한다

app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivity.kt

@@ -493,9 +493,10 @@ class CreatorChannelActivity :
 
     override fun onCreatorChannelLiveContentChanged() {
         updateCreatorChannelTabViewportHeight()
-        updateViewPagerHeight()
+        updateViewPagerHeight {
             postCheckCreatorChannelCurrentTabNeedsMore()
         }
+    }
 
     override fun isCreatorChannelOwner(): Boolean = currentHeader?.isOwner == true
 
@@ -505,9 +506,10 @@ class CreatorChannelActivity :
 
     override fun onCreatorChannelAudioContentChanged() {
         updateCreatorChannelTabViewportHeight()
-        updateViewPagerHeight()
+        updateViewPagerHeight {
             postCheckCreatorChannelCurrentTabNeedsMore()
         }
+    }
 
     override fun onCreatorChannelSeriesClicked(seriesId: Long) {
         startActivity(
@@ -519,14 +521,16 @@ class CreatorChannelActivity :
 
     override fun onCreatorChannelSeriesContentChanged() {
         updateCreatorChannelTabViewportHeight()
-        updateViewPagerHeight()
+        updateViewPagerHeight {
             postCheckCreatorChannelCurrentTabNeedsMore()
         }
+    }
 
     override fun onCreatorChannelCommunityContentChanged() {
-        updateViewPagerHeight()
+        updateViewPagerHeight {
             postCheckCreatorChannelCurrentTabNeedsMore()
         }
+    }
 
     override fun onCreatorChannelCommunityOwnerMoreClicked(item: CreatorChannelCommunityPostUiModel) {
         CreatorCommunityPostMenuBottomSheetDialog(
@@ -894,23 +898,28 @@ class CreatorChannelActivity :
         }
     }
 
-    private fun updateViewPagerHeight() {
+    private fun updateViewPagerHeight(afterHeightUpdated: (() -> Unit)? = null) {
         updateCreatorChannelTabViewportHeight()
         binding.viewPager.post {
-            val recyclerView = binding.viewPager.getChildAt(0) as? RecyclerView ?: return@post
-            val currentPage = recyclerView.layoutManager?.findViewByPosition(binding.viewPager.currentItem) ?: return@post
+            val recyclerView = binding.viewPager.getChildAt(0) as? RecyclerView
+            val currentPage = recyclerView?.layoutManager?.findViewByPosition(binding.viewPager.currentItem)
+            if (currentPage == null) {
+                afterHeightUpdated?.invoke()
+                return@post
+            }
             val widthSpec = MeasureSpec.makeMeasureSpec(binding.viewPager.width, MeasureSpec.EXACTLY)
             val heightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)
             currentPage.measure(widthSpec, heightSpec)
             val measuredHeight = currentPage.measuredHeight
             val viewPagerVerticalPadding = binding.viewPager.paddingTop + binding.viewPager.paddingBottom
             val targetHeight = measuredHeight + viewPagerVerticalPadding
-            if (measuredHeight <= 0 || binding.viewPager.layoutParams.height == targetHeight) return@post
-
+            if (measuredHeight > 0 && binding.viewPager.layoutParams.height != targetHeight) {
                 binding.viewPager.updateLayoutParams {
                     height = targetHeight
                 }
             }
+            afterHeightUpdated?.invoke()
+        }
     }
 
     private fun updateCreatorChannelTabViewportHeight() {
@@ -941,12 +950,13 @@ class CreatorChannelActivity :
         if (!isCreatorChannelLoadMoreTab(binding.viewPager.currentItem)) return
 
         val contentHeight = binding.nestedScrollView.getChildAt(0)?.height ?: return
+        val threshold = CREATOR_CHANNEL_LOAD_MORE_THRESHOLD_DP.dpToPx().toInt()
         val remainingScroll = calculateCreatorChannelRemainingScroll(
             contentHeight = contentHeight,
             viewportHeight = binding.nestedScrollView.height,
             scrollY = binding.nestedScrollView.scrollY
         )
-        if (remainingScroll <= 0) {
+        if (remainingScroll <= threshold) {
             notifyCurrentCreatorChannelTabScrolledToBottom()
         }
     }

app/src/test/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivitySourceTest.kt

@@ -373,7 +373,7 @@ class CreatorChannelActivitySourceTest {
         assertTrue(source.contains("override fun onDestroy()"))
         assertTrue(source.contains("tabLayoutMediator?.detach()"))
         assertTrue(source.contains("binding.viewPager.unregisterOnPageChangeCallback(callback)"))
-        assertTrue(source.contains("private fun updateViewPagerHeight()"))
+        assertTrue(source.contains("private fun updateViewPagerHeight(afterHeightUpdated: (() -> Unit)? = null)"))
         assertTrue(source.contains("findViewByPosition(binding.viewPager.currentItem)"))
         assertTrue(source.contains("currentPage.measure(widthSpec, heightSpec)"))
         assertTrue(source.contains("binding.viewPager.updateLayoutParams"))
@@ -394,7 +394,7 @@ class CreatorChannelActivitySourceTest {
             )
         )
         assertTrue(source.contains("val targetHeight = measuredHeight + viewPagerVerticalPadding"))
-        assertTrue(source.contains("binding.viewPager.layoutParams.height == targetHeight"))
+        assertTrue(source.contains("binding.viewPager.layoutParams.height != targetHeight"))
         assertTrue(source.contains("height = targetHeight"))
         assertFalse(source.contains("binding.viewPager.layoutParams.height == measuredHeight"))
         assertFalse(source.contains("height = measuredHeight"))
@@ -464,6 +464,8 @@ class CreatorChannelActivitySourceTest {
         assertTrue(source.contains("findCommunityFragment()?.onCreatorChannelCommunityScrolledToBottom()"))
         assertTrue(source.contains("position == CreatorChannelTab.Community.ordinal"))
         assertTrue(source.contains("override fun onCreatorChannelCommunityContentChanged()"))
+        assertTrue(source.contains("private fun updateViewPagerHeight(afterHeightUpdated: (() -> Unit)? = null)"))
+        assertTrue(source.contains("updateViewPagerHeight {\n            postCheckCreatorChannelCurrentTabNeedsMore()"))
         assertTrue(source.contains("findCommunityFragment()?.onCreatorChannelCommunityOwnerCtaVisibilityChanged("))
         assertTrue(source.contains("ownerCtaTab == CreatorChannelTab.Community"))
         assertTrue(source.contains("CreatorChannelTab.Community.ordinal -> CreatorChannelTab.Community"))
@@ -1090,6 +1092,9 @@ class CreatorChannelActivitySourceTest {
         assertTrue(source.contains("private fun postCheckCreatorChannelCurrentTabNeedsMore()"))
         assertTrue(source.contains("binding.nestedScrollView.post"))
         assertTrue(source.contains("checkCreatorChannelCurrentTabNeedsMore()"))
+        assertTrue(source.contains("afterHeightUpdated?.invoke()"))
+        assertTrue(source.contains("val threshold = CREATOR_CHANNEL_LOAD_MORE_THRESHOLD_DP.dpToPx().toInt()"))
+        assertTrue(source.contains("if (remainingScroll <= threshold)"))
         assertTrue(source.contains("if (!isCreatorChannelLoadMoreTab(binding.viewPager.currentItem)) return"))
         assertTrue(source.contains("findLiveFragment()?.onCreatorChannelLiveScrolledToBottom()"))
     }