feat(creator): 채널 홈 스크롤 상태 계산을 추가한다

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

@@ -0,0 +1,19 @@
+package kr.co.vividnext.sodalive.v2.creator.channel.model
+
+object CreatorChannelScrollState {
+
+    fun shouldUseBlackTitleBar(
+        titleBarBottom: Int,
+        tabBarTop: Int,
+        profileImageVisibleHeight: Int,
+        profileImageTotalHeight: Int
+    ): Boolean {
+        val isTabBarCloseToTitleBar = tabBarTop <= titleBarBottom
+        val isProfileImageHalfHidden = profileImageVisibleHeight <= profileImageTotalHeight / 2
+        return isTabBarCloseToTitleBar && isProfileImageHalfHidden
+    }
+
+    fun calculateStickyTop(statusBarHeight: Int, titleBarHeight: Int): Int {
+        return statusBarHeight + titleBarHeight
+    }
+}