fix(creator): 라이브 탭 하단 CTA와 sticky 전환을 보정한다

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

@@ -14,7 +14,6 @@ import android.view.View.MeasureSpec
 import android.widget.LinearLayout
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
-import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
@@ -80,6 +79,7 @@ class CreatorChannelActivity :
     private var statusBarHeight: Int = 0
     private var tabLayoutMediator: TabLayoutMediator? = null
     private var pageChangeCallback: ViewPager2.OnPageChangeCallback? = null
+    private var lastSelectedCreatorChannelTabPosition: Int? = null
     private var isOwnerFabExpanded: Boolean = false
     private var isOwnerFabAnimating: Boolean = false
     private lateinit var loadingDialog: LoadingDialog
@@ -129,6 +129,7 @@ class CreatorChannelActivity :
         setStatusBarIconAppearance()
         setTitleBarTopInset()
         setupOwnerFabInsets()
+        setupLiveOwnerCtaInsets()
         setupScrollListener()
         setupClickListeners()
         setupLiveEntryObservers()
@@ -159,6 +160,7 @@ class CreatorChannelActivity :
         binding.ownerFabCommunityButton.setOnClickListener { onOwnerFabCommunityClicked() }
         binding.ownerFabAudioButton.setOnClickListener { onOwnerFabAudioClicked() }
         binding.ownerFabLiveButton.setOnClickListener { onOwnerFabLiveClicked() }
+        binding.btnCreatorChannelLiveOwnerCta.setOnClickListener { onLiveOwnerCtaClicked() }
         binding.tvChatButton.setOnClickListener {
             currentHeader?.characterId?.let { characterId -> homeActionDelegate?.createChatRoom(characterId) }
         }
@@ -308,6 +310,22 @@ class CreatorChannelActivity :
         binding.tvTitleNickname.isVisible = shouldUseBlackTitleBar
     }
 
+    private fun adjustCreatorChannelStickyAnchorOnTabSelected(position: Int) {
+        val previousPosition = lastSelectedCreatorChannelTabPosition
+        lastSelectedCreatorChannelTabPosition = position
+        if (previousPosition == null || previousPosition == position) return
+
+        val stickyScrollY = calculateCreatorChannelStickyScrollY()
+        if (binding.nestedScrollView.scrollY < stickyScrollY) {
+            binding.nestedScrollView.scrollTo(0, stickyScrollY)
+        }
+    }
+
+    private fun calculateCreatorChannelStickyScrollY(): Int {
+        val stickyTop = CreatorChannelScrollState.calculateStickyTop(statusBarHeight, baseTitleBarHeight)
+        return (binding.headerContainer.height - stickyTop).coerceAtLeast(0)
+    }
+
     private fun setStatusBarIconAppearance() {
         WindowCompat.getInsetsController(window, binding.root).isAppearanceLightStatusBars = false
     }
@@ -364,12 +382,16 @@ class CreatorChannelActivity :
         }.also {
             it.attach()
         }
+        lastSelectedCreatorChannelTabPosition = binding.viewPager.currentItem
         val callback = object : ViewPager2.OnPageChangeCallback() {
             override fun onPageSelected(position: Int) {
+                adjustCreatorChannelStickyAnchorOnTabSelected(position)
                 if (position != CreatorChannelTab.Home.ordinal) {
                     collapseOwnerFab(animate = false)
                 }
                 updateOwnerFabVisibility()
+                updateLiveOwnerCtaVisibility()
+                updateCreatorChannelLiveViewportHeight()
                 updateViewPagerHeight()
                 if (position == CreatorChannelTab.Live.ordinal) {
                     binding.viewPager.post {
@@ -387,7 +409,7 @@ class CreatorChannelActivity :
         bindHeader(header)
         bindTitleBar(header)
         updateOwnerFabVisibility()
-        findLiveFragment()?.onCreatorChannelOwnerChanged(header.isOwner)
+        updateLiveOwnerCtaVisibility()
     }
 
     override fun onCreatorChannelFollowProgressChanged(inProgress: Boolean) {
@@ -422,28 +444,28 @@ class CreatorChannelActivity :
     }
 
     override fun onCreatorChannelLiveContentChanged() {
+        updateCreatorChannelLiveViewportHeight()
         updateViewPagerHeight()
         postCheckCreatorChannelLiveNeedsMore()
     }
 
-    override fun isCreatorChannelOwner(): Boolean {
+    private fun setupOwnerFabInsets() {
-        return currentHeader?.isOwner == true
+        binding.viewPager.updatePadding(bottom = OWNER_FAB_CONTENT_BOTTOM_PADDING_DP.dpToPx().toInt())
     }
 
-    private fun setupOwnerFabInsets() {
+    private fun setupLiveOwnerCtaInsets() {
-        ViewCompat.setOnApplyWindowInsetsListener(binding.ownerFabButton) { _, insets ->
+        updateLiveOwnerCtaVisibility()
-            val navigationBottomInset = insets.getInsets(WindowInsetsCompat.Type.navigationBars()).bottom
-            val bottomMargin = OWNER_FAB_BASE_MARGIN_DP.dpToPx().toInt() + navigationBottomInset
-            binding.ownerFabButton.updateLayoutParams<ConstraintLayout.LayoutParams> {
-                this.bottomMargin = bottomMargin
     }
-            binding.ownerFabExpandedContainer.updateLayoutParams<ConstraintLayout.LayoutParams> {
+
-                this.bottomMargin = bottomMargin
+    private fun updateLiveOwnerCtaVisibility() {
+        val shouldShowLiveOwnerCta = shouldShowLiveOwnerCta()
+        binding.layoutCreatorChannelLiveOwnerCta.isVisible = shouldShowLiveOwnerCta
+        binding.btnCreatorChannelLiveOwnerCta.isEnabled = true
+        findLiveFragment()?.onCreatorChannelLiveOwnerCtaVisibilityChanged(shouldShowLiveOwnerCta)
     }
-            binding.viewPager.updatePadding(bottom = OWNER_FAB_CONTENT_BOTTOM_PADDING_DP.dpToPx().toInt())
+
-            insets
+    private fun shouldShowLiveOwnerCta(): Boolean {
-        }
+        return currentHeader?.isOwner == true && binding.viewPager.currentItem == CreatorChannelTab.Live.ordinal
-        ViewCompat.requestApplyInsets(binding.ownerFabButton)
     }
 
     private fun expandOwnerFab() {
@@ -534,6 +556,11 @@ class CreatorChannelActivity :
         liveRoomCreateLauncher.launch(Intent(this, LiveRoomCreateActivity::class.java))
     }
 
+    private fun onLiveOwnerCtaClicked() {
+        binding.btnCreatorChannelLiveOwnerCta.isEnabled = false
+        onOwnerFabLiveClicked()
+    }
+
     override fun onCreatorChannelDonationClicked() {
         val header = currentHeader ?: return
         if (header.isOwner) return
@@ -561,10 +588,6 @@ class CreatorChannelActivity :
         startAudioContentDetail(audioContentId)
     }
 
-    override fun onCreatorChannelLiveStartClicked() {
-        onOwnerFabLiveClicked()
-    }
-
     private fun findLiveFragment(): CreatorChannelLiveFragment? {
         val fragmentTag = "f${CreatorChannelTab.Live.ordinal}"
         return supportFragmentManager.findFragmentByTag(fragmentTag) as? CreatorChannelLiveFragment
@@ -636,10 +659,10 @@ class CreatorChannelActivity :
     }
 
     private fun updateViewPagerHeight() {
+        updateCreatorChannelLiveViewportHeight()
         binding.viewPager.post {
             val recyclerView = binding.viewPager.getChildAt(0) as? RecyclerView ?: return@post
             val currentPage = recyclerView.layoutManager?.findViewByPosition(binding.viewPager.currentItem) ?: return@post
-            currentPage.minimumHeight = calculateCreatorChannelTabViewportHeight()
             val widthSpec = MeasureSpec.makeMeasureSpec(binding.viewPager.width, MeasureSpec.EXACTLY)
             val heightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)
             currentPage.measure(widthSpec, heightSpec)
@@ -652,6 +675,23 @@ class CreatorChannelActivity :
         }
     }
 
+    private fun updateCreatorChannelLiveViewportHeight() {
+        if (binding.viewPager.currentItem != CreatorChannelTab.Live.ordinal) return
+
+        findLiveFragment()?.onCreatorChannelLiveViewportHeightChanged(
+            calculateCreatorChannelLiveEmptyMinHeight()
+        )
+    }
+
+    private fun calculateCreatorChannelLiveEmptyMinHeight(): Int {
+        val stickyScrollY = calculateCreatorChannelStickyScrollY()
+        val visibleTabViewportHeight = binding.nestedScrollView.height - binding.tabLayout.height
+        val scrollRangeRequiredHeight = binding.nestedScrollView.height +
+            stickyScrollY -
+            binding.headerContainer.height
+        return maxOf(visibleTabViewportHeight, scrollRangeRequiredHeight, 0)
+    }
+
     private fun postCheckCreatorChannelLiveNeedsMore() {
         binding.nestedScrollView.post {
             checkCreatorChannelLiveNeedsMore()
@@ -672,10 +712,6 @@ class CreatorChannelActivity :
         }
     }
 
-    private fun calculateCreatorChannelTabViewportHeight(): Int {
-        return (binding.nestedScrollView.height - binding.tabLayout.height).coerceAtLeast(0)
-    }
-
     private fun onScheduleClicked(schedule: CreatorChannelScheduleResponse) {
         when (schedule.type) {
             CreatorActivityType.Audio,
@@ -711,6 +747,11 @@ class CreatorChannelActivity :
         )
     }
 
+    override fun onResume() {
+        super.onResume()
+        binding.btnCreatorChannelLiveOwnerCta.isEnabled = true
+    }
+
     override fun onDestroy() {
         tabLayoutMediator?.detach()
         pageChangeCallback?.let { callback ->
@@ -741,7 +782,6 @@ class CreatorChannelActivity :
 
     companion object {
         const val EXTRA_CREATOR_ID: String = "extra_creator_id"
-        private const val OWNER_FAB_BASE_MARGIN_DP = 14
         private const val OWNER_FAB_CONTENT_BOTTOM_PADDING_DP = 96
         private const val OWNER_FAB_ANIMATION_DURATION_MS = 260L
         private const val OWNER_FAB_SPRING_MASS = 1f

app/src/main/res/layout/activity_creator_channel.xml

@@ -238,6 +238,45 @@
         </LinearLayout>
     </androidx.constraintlayout.widget.ConstraintLayout>
 
+    <FrameLayout
+        android:id="@+id/layout_creator_channel_live_owner_cta"
+        android:layout_width="0dp"
+        android:layout_height="100dp"
+        android:background="@color/black"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent">
+
+        <LinearLayout
+            android:id="@+id/btn_creator_channel_live_owner_cta"
+            android:layout_width="match_parent"
+            android:layout_height="52dp"
+            android:layout_marginHorizontal="@dimen/spacing_14"
+            android:layout_marginTop="@dimen/spacing_14"
+            android:background="@drawable/bg_creator_channel_owner_fab"
+            android:clickable="true"
+            android:focusable="true"
+            android:gravity="center"
+            android:orientation="horizontal">
+
+            <ImageView
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:contentDescription="@null"
+                android:src="@drawable/ic_new_create_live" />
+
+            <TextView
+                style="@style/Typography.Heading3"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="@dimen/spacing_8"
+                android:includeFontPadding="false"
+                android:text="@string/creator_channel_live_start_button"
+                android:textColor="@color/white" />
+        </LinearLayout>
+    </FrameLayout>
+
     <View
         android:id="@+id/owner_fab_dim"
         android:layout_width="0dp"

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

@@ -932,16 +932,57 @@ class CreatorChannelActivitySourceTest {
         assertTrue(source.contains("override fun onCreatorChannelLiveContentChanged()"))
         assertTrue(source.contains("postCheckCreatorChannelLiveNeedsMore()"))
         assertTrue(source.contains("updateViewPagerHeight()"))
+        assertTrue(source.contains("updateCreatorChannelLiveViewportHeight()"))
         assertTrue(source.contains("if (position == CreatorChannelTab.Live.ordinal)"))
         assertTrue(source.contains("findLiveFragment()?.onCreatorChannelLiveTabSelected()"))
         assertTrue(source.contains("binding.viewPager.offscreenPageLimit = CreatorChannelTab.entries.size - 1"))
-        assertTrue(source.contains("currentPage.minimumHeight = calculateCreatorChannelTabViewportHeight()"))
+        assertFalse(source.contains("currentPage.minimumHeight = calculateCreatorChannelTabViewportHeight()"))
-        assertTrue(source.contains("private fun calculateCreatorChannelTabViewportHeight(): Int"))
+        assertFalse(source.contains("private fun calculateCreatorChannelTabViewportHeight(): Int"))
         assertTrue(fragment.contains("fun onCreatorChannelLiveScrolledToBottom()"))
         assertTrue(fragment.contains("fun onCreatorChannelLiveTabSelected()"))
+        assertTrue(fragment.contains("fun onCreatorChannelLiveViewportHeightChanged(minHeight: Int)"))
         assertTrue(fragment.contains("fun onCreatorChannelLiveContentChanged()"))
     }
 
+    @Test
+    fun `라이브 empty 최소 높이는 sticky anchor 이후 탭 viewport 기준으로 전달한다`() {
+        val source = projectFile(
+            "app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivity.kt"
+        ).readText()
+
+        assertTrue(source.contains("private fun updateCreatorChannelLiveViewportHeight()"))
+        assertTrue(source.contains("findLiveFragment()?.onCreatorChannelLiveViewportHeightChanged"))
+        assertTrue(source.contains("calculateCreatorChannelLiveEmptyMinHeight()"))
+        assertTrue(source.contains("private fun calculateCreatorChannelLiveEmptyMinHeight(): Int"))
+        assertTrue(source.contains("val stickyScrollY = calculateCreatorChannelStickyScrollY()"))
+        assertTrue(source.contains("binding.nestedScrollView.height - binding.tabLayout.height"))
+        assertTrue(source.contains("val scrollRangeRequiredHeight = binding.nestedScrollView.height +"))
+        assertTrue(source.contains("stickyScrollY -"))
+        assertTrue(source.contains("binding.headerContainer.height"))
+        assertTrue(source.contains("return maxOf(visibleTabViewportHeight, scrollRangeRequiredHeight, 0)"))
+    }
+
+    @Test
+    fun `탭 전환은 sticky tabbar anchor 아래로 내려간 scroll 위치를 되돌리지 않고 부족할 때만 보정한다`() {
+        val source = projectFile(
+            "app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivity.kt"
+        ).readText()
+
+        assertTrue(source.contains("private var lastSelectedCreatorChannelTabPosition: Int? = null"))
+        assertTrue(source.contains("lastSelectedCreatorChannelTabPosition = binding.viewPager.currentItem"))
+        assertTrue(source.contains("lastSelectedCreatorChannelTabPosition = position"))
+        assertTrue(source.contains("adjustCreatorChannelStickyAnchorOnTabSelected(position)"))
+        assertTrue(source.contains("private fun adjustCreatorChannelStickyAnchorOnTabSelected(position: Int)"))
+        assertTrue(source.contains("val previousPosition = lastSelectedCreatorChannelTabPosition"))
+        assertTrue(source.contains("if (previousPosition == null || previousPosition == position)"))
+        assertTrue(source.contains("val stickyScrollY = calculateCreatorChannelStickyScrollY()"))
+        assertTrue(source.contains("if (binding.nestedScrollView.scrollY < stickyScrollY)"))
+        assertTrue(source.contains("binding.nestedScrollView.scrollTo(0, stickyScrollY)"))
+        assertTrue(source.contains("private fun calculateCreatorChannelStickyScrollY(): Int"))
+        assertTrue(source.contains("CreatorChannelScrollState.calculateStickyTop(statusBarHeight, baseTitleBarHeight)"))
+        assertTrue(source.contains("return (binding.headerContainer.height - stickyTop).coerceAtLeast(0)"))
+    }
+
     @Test
     fun `라이브 content 변경은 현재 scroll bottom 조건을 재평가한다`() {
         val source = projectFile(
@@ -999,18 +1040,39 @@ class CreatorChannelActivitySourceTest {
         val source = projectFile(
             "app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivity.kt"
         ).readText()
-        val fragment = projectFile(
+        val activityLayout = projectFile("app/src/main/res/layout/activity_creator_channel.xml").readText()
-            "app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/live/CreatorChannelLiveFragment.kt"
-        ).readText()
 
-        assertTrue(source.contains("findLiveFragment()?.onCreatorChannelOwnerChanged(header.isOwner)"))
+        assertTrue(activityLayout.contains("android:id=\"@+id/layout_creator_channel_live_owner_cta\""))
-        assertTrue(source.contains("override fun isCreatorChannelOwner(): Boolean"))
+        assertTrue(source.contains("updateLiveOwnerCtaVisibility()"))
+        assertTrue(
+            source.contains(
+                "currentHeader?.isOwner == true && binding.viewPager.currentItem == CreatorChannelTab.Live.ordinal"
+            )
+        )
+        assertTrue(source.contains("binding.layoutCreatorChannelLiveOwnerCta.isVisible = shouldShowLiveOwnerCta"))
+        assertTrue(source.contains("findLiveFragment()?.onCreatorChannelLiveOwnerCtaVisibilityChanged(shouldShowLiveOwnerCta)"))
         assertTrue(source.contains("return currentHeader?.isOwner == true"))
-        assertTrue(source.contains("override fun onCreatorChannelLiveStartClicked()"))
+        assertTrue(source.contains("binding.btnCreatorChannelLiveOwnerCta.setOnClickListener { onLiveOwnerCtaClicked() }"))
         assertTrue(source.contains("onOwnerFabLiveClicked()"))
         assertTrue(source.contains("liveRoomCreateLauncher.launch(Intent(this, LiveRoomCreateActivity::class.java))"))
-        assertTrue(fragment.contains("fun onCreatorChannelOwnerChanged(isOwner: Boolean)"))
+    }
-        assertTrue(fragment.contains("host.onCreatorChannelLiveStartClicked()"))
+
+    @Test
+    fun `크리에이터 채널 하단 고정 UI는 BaseActivity root bottom padding과 navigation inset을 중복 적용하지 않는다`() {
+        val source = projectFile(
+            "app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivity.kt"
+        ).readText()
+
+        assertFalse(source.contains("binding.ownerFabButton.updateLayoutParams<ConstraintLayout.LayoutParams>"))
+        assertFalse(source.contains("binding.ownerFabExpandedContainer.updateLayoutParams<ConstraintLayout.LayoutParams>"))
+        assertFalse(source.contains("binding.layoutCreatorChannelLiveOwnerCta.updateLayoutParams<ConstraintLayout.LayoutParams>"))
+        assertFalse(source.contains("WindowInsetsCompat.Type.navigationBars()).bottom"))
+        assertTrue(
+            source.contains(
+                "binding.viewPager.updatePadding(bottom = OWNER_FAB_CONTENT_BOTTOM_PADDING_DP.dpToPx().toInt())"
+            )
+        )
+        assertFalse(source.contains("binding.nestedScrollView.updatePadding(bottom = liveOwnerCtaBottomPadding)"))
     }
 
     @Test
@@ -1644,17 +1706,16 @@ class CreatorChannelActivitySourceTest {
     }
 
     @Test
-    fun `Phase 13 owner FAB source는 spring animation과 navigation inset을 적용한다`() {
+    fun `Phase 13 owner FAB source는 spring animation과 content padding을 적용한다`() {
         val source = projectFile(
             "app/src/main/java/kr/co/vividnext/sodalive/v2/creator/channel/CreatorChannelActivity.kt"
         ).readText()
 
         assertTrue(source.contains("private var isOwnerFabAnimating: Boolean = false"))
         assertTrue(source.contains("setupOwnerFabInsets()"))
-        assertTrue(source.contains("WindowInsetsCompat.Type.navigationBars()"))
+        assertFalse(source.contains("OWNER_FAB_BASE_MARGIN_DP.dpToPx().toInt() + navigationBottomInset"))
-        assertTrue(source.contains("OWNER_FAB_BASE_MARGIN_DP.dpToPx().toInt() + navigationBottomInset"))
+        assertFalse(source.contains("binding.ownerFabButton.updateLayoutParams<ConstraintLayout.LayoutParams>"))
-        assertTrue(source.contains("binding.ownerFabButton.updateLayoutParams<ConstraintLayout.LayoutParams>"))
+        assertFalse(source.contains("binding.ownerFabExpandedContainer.updateLayoutParams<ConstraintLayout.LayoutParams>"))
-        assertTrue(source.contains("binding.ownerFabExpandedContainer.updateLayoutParams<ConstraintLayout.LayoutParams>"))
         assertTrue(
             source.contains(
                 "binding.viewPager.updatePadding(bottom = OWNER_FAB_CONTENT_BOTTOM_PADDING_DP.dpToPx().toInt())"