[TopAppBar] Exclude gone views from scroll range calculation

Resolves #2709 PiperOrigin-RevId: 454163860
material-components · Jun 10, 2022 · 687e735 · 687e735
1 parent eb54d6a
commit 687e735
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/java/com/google/android/material/appbar/AppBarLayout.java b/lib/java/com/google/android/material/appbar/AppBarLayout.java
@@ -677,6 +677,10 @@ public final int getTotalScrollRange() {
     int range = 0;
     for (int i = 0, z = getChildCount(); i < z; i++) {
       final View child = getChildAt(i);
+      if (child.getVisibility() == GONE) {
+        // Gone views should not be included in the scroll range calculation.
+        continue;
+      }
       final LayoutParams lp = (LayoutParams) child.getLayoutParams();
       final int childHeight = child.getMeasuredHeight();
       final int flags = lp.scrollFlags;