Update WardRecycler.kt

Fix Cannot call this method in a scroll callback. Scroll callbacks might be run during a measure & layout pass where you cannot change theRecyclerView data. Any method call that might change the structure of the RecyclerView or the adapter contents should be postponed to the next frame.

Author: swabbass

wrecycler/src/main/java/com/ward/wrecycler/WardRecycler.kt

@@ -93,8 +93,9 @@ open class WardRecycler @JvmOverloads constructor(context: Context, attributeSet
     private fun showProgressBar() {
 
         progressView.visibility = View.VISIBLE
-        recyclerView.invalidateItemDecorations()
-
+         recyclerView.post{
+            recyclerView.invalidateItemDecorations()
+        }
     }
 
     init {
@@ -183,7 +184,9 @@ open class WardRecycler @JvmOverloads constructor(context: Context, attributeSet
             swipeRefreshLayout.isRefreshing = false
         }
         progressView.visibility = GONE
-        recyclerView.invalidateItemDecorations()
+        recyclerView.post{
+            recyclerView.invalidateItemDecorations()
+        }
     }
 
     fun setAdapter(adapter: RecyclerView.Adapter<*>) {
@@ -194,4 +197,4 @@ open class WardRecycler @JvmOverloads constructor(context: Context, attributeSet
         swipeRefreshLayout.setColorSchemeColors(*colors)
     }
 
-}
+}