From d6c435461eece74656db5e2de92944c7ca807439 Mon Sep 17 00:00:00 2001
From: dsn5ft <1420597+dsn5ft@users.noreply.github.com>
Date: Tue, 19 Apr 2022 11:50:23 -0400
Subject: [PATCH] [AppBarLayout] Add setLiftOnScrollTargetView() method

Resolves https://github.com/material-components/material-components-android/pull/2544

PiperOrigin-RevId: 442823082
---
 .../android/material/appbar/AppBarLayout.java       | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lib/java/com/google/android/material/appbar/AppBarLayout.java b/lib/java/com/google/android/material/appbar/AppBarLayout.java
index f775bb5f4f0..da4e04e62de 100644
--- a/lib/java/com/google/android/material/appbar/AppBarLayout.java
+++ b/lib/java/com/google/android/material/appbar/AppBarLayout.java
@@ -967,6 +967,19 @@ public boolean isLiftOnScroll() {
     return liftOnScroll;
   }
 
+  /**
+   * Sets the view that the {@link AppBarLayout} should use to determine whether it should be
+   * lifted.
+   */
+  public void setLiftOnScrollTargetView(@Nullable View liftOnScrollTargetView) {
+    this.liftOnScrollTargetViewId = View.NO_ID;
+    if (liftOnScrollTargetView == null) {
+      clearLiftOnScrollTargetView();
+    } else {
+      this.liftOnScrollTargetView = new WeakReference<>(liftOnScrollTargetView);
+    }
+  }
+
   /**
    * Sets the id of the view that the {@link AppBarLayout} should use to determine whether it should
    * be lifted.