diff --git a/app/src/main/java/com/huanchengfly/tieba/post/fragments/MainForumListFragment.kt b/app/src/main/java/com/huanchengfly/tieba/post/fragments/MainForumListFragment.kt
index 25407b81..763f2b89 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/fragments/MainForumListFragment.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/fragments/MainForumListFragment.kt
@@ -298,12 +298,16 @@ class MainForumListFragment : BaseFragment(), Refreshable, Toolbar.OnMenuItemCli
     }
 
     private fun List<ForumRecommend.LikeForum>.addFakeItems(divisor: Int): List<ForumRecommend.LikeForum> {
-        val fakeItemCount = divisor - (size % divisor)
-        return toMutableList().apply {
-            repeat(fakeItemCount) {
-                add(ForumRecommend.LikeForum("", "", "1", "0", "", isFake = true))
+        val mod = size % divisor
+        if (mod > 0) {
+            val fakeItemCount = divisor - mod
+            return toMutableList().apply {
+                repeat(fakeItemCount) {
+                    add(ForumRecommend.LikeForum("", "", "1", "0", "", isFake = true))
+                }
             }
         }
+        return this
     }
 
     override fun onRefresh() {
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/utils/ThemeUtil.kt b/app/src/main/java/com/huanchengfly/tieba/post/utils/ThemeUtil.kt
index 78ca9b63..bb7ebb7d 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/utils/ThemeUtil.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/utils/ThemeUtil.kt
@@ -371,7 +371,7 @@ object ThemeUtil {
     }
 
     @JvmStatic
-    fun setTranslucentThemeBackground(view: View) {
+    fun setTranslucentThemeBackground(view: View?) {
         setTranslucentThemeBackground(view, true, false)
     }