Fixed #369 - Added OnScrollListener as counterpart of onDetachedFromW…

…indow, when ViewPager Adapter is changed at runtime
davideas · May 25, 2017 · da0d4b9 · da0d4b9
1 parent 64b3a9b
commit da0d4b9
Showing 1 changed file with 12 additions and 1 deletion.
diff --git a/flexible-adapter/src/main/java/eu/davidea/fastscroller/FastScroller.java b/flexible-adapter/src/main/java/eu/davidea/fastscroller/FastScroller.java
@@ -340,11 +340,22 @@ public boolean onTouchEvent(@NonNull MotionEvent event) {
 		return super.onTouchEvent(event);
 	}
 
+	@Override
+	protected void onAttachedToWindow() {
+		super.onAttachedToWindow();
+		if (recyclerView != null) {
+			// #369 - OnScrollListener as counterpart of onDetachedFromWindow
+			// Occurs only when a new ViewPager Adapter is changed at runtime
+			recyclerView.addOnScrollListener(onScrollListener);
+		}
+	}
+
 	@Override
 	protected void onDetachedFromWindow() {
 		super.onDetachedFromWindow();
-		if (recyclerView != null)
+		if (recyclerView != null) {
 			recyclerView.removeOnScrollListener(onScrollListener);
+		}
 	}
 
 	protected void setRecyclerViewPosition(float y) {