From c4409a13be4649749f0087b5465979d6fc4a5c27 Mon Sep 17 00:00:00 2001
From: Justin Ghan <justinghan@google.com>
Date: Tue, 1 Nov 2022 14:16:47 -0700
Subject: [PATCH] Add threading comments for the delegate initiation callback

Bug: 228100684
Bug: 256870186
Test: N/A
Change-Id: I6db21adad640d27a3efd020aa9f829276993bbe7
---
 core/java/android/view/HandwritingDelegateConfiguration.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/java/android/view/HandwritingDelegateConfiguration.java b/core/java/android/view/HandwritingDelegateConfiguration.java
index 524bb4ca68ab9..719c614f42f0e 100644
--- a/core/java/android/view/HandwritingDelegateConfiguration.java
+++ b/core/java/android/view/HandwritingDelegateConfiguration.java
@@ -47,7 +47,7 @@ public class HandwritingDelegateConfiguration {
      * @param delegatorViewId identifier of the delegator editor view for which handwriting mode
      *     should be initiated
      * @param initiationCallback callback called when a stylus {@link MotionEvent} occurs within
-     *     this view's bounds
+     *     this view's bounds. This will be called from the UI thread.
      */
     public HandwritingDelegateConfiguration(
             @IdRes int delegatorViewId, @NonNull Runnable initiationCallback) {
@@ -65,7 +65,7 @@ public class HandwritingDelegateConfiguration {
 
     /**
      * Returns the callback which should be called when a stylus {@link MotionEvent} occurs within
-     * the delegate view's bounds.
+     * the delegate view's bounds. The callback should only be called from the UI thread.
      */
     @NonNull
     public Runnable getInitiationCallback() {