タブレットモードで区切り線の下に空白が増えていく現象の対策

app/src/main/java/jp/juggler/subwaytooter/ColumnViewHolder.kt

@@ -408,7 +408,10 @@ class ColumnViewHolder(
 			tvColumnStatus.text = "?"
 			
 			listView.adapter = null
-			listView.addItemDecoration(ListDivider(activity))
+			if(listView.itemDecorationCount == 0) {
+				listView.addItemDecoration(ListDivider(activity))
+			}
+			
 			val status_adapter = ItemListAdapter(activity, column, this, bSimpleList)
 			this.status_adapter = status_adapter
 			

app/src/main/java/jp/juggler/subwaytooter/ItemViewHolder.kt

@@ -246,13 +246,7 @@ internal class ItemViewHolder(
 		bSimpleList : Boolean,
 		item : TimelineItem
 	) {
-//		// LGT32で区切り線の下の余白が増えていく件の対策？
-//		(this.viewRoot.layoutParams as? RecyclerView.LayoutParams)?.let {
-//			it.topMargin = 0
-//			it.bottomMargin = 0
-//			it.setDirtyInset()
-//		}
-		
+
 		this.list_adapter = list_adapter
 		this.column = column
 		this.bSimpleList = bSimpleList

app/src/main/java/jp/juggler/subwaytooter/util/Utils.kt

@@ -746,28 +746,6 @@ fun View.showKeyboard() {
 	}
 }
 
-fun getPrivateField( clazz: Class<*> ,name:String) : Field? {
-	return try{
-		clazz.getDeclaredField(name).apply{
-			isAccessible = true
-		}
-	}catch(_:Throwable){
-		null
-	}
-}
-
-private val RVLP_Clazz = RecyclerView.LayoutParams::class.java
-private val RVLP_mDecorInsets = getPrivateField(RVLP_Clazz,"mDecorInsets")
-private val RVLP_mInsetsDirty = getPrivateField(RVLP_Clazz,"mInsetsDirty")
-
-fun RecyclerView.LayoutParams.setDirtyInset() {
-	val rect = (RVLP_mDecorInsets?.get(this) as? Rect) ?: return
-	if(rect.bottom != 0){
-		rect.set(0,0,0,0)
-		RVLP_mInsetsDirty?.setBoolean(this, true)
-	}
-}
-
 ////////////////////////////////////////////////////////////////////
 // context