From 12c0ea2c98245bb8ef74ea42d09a3058e2c0a2e4 Mon Sep 17 00:00:00 2001
From: Candice Lo <chihtinglo@google.com>
Date: Tue, 25 Apr 2023 10:51:33 +0000
Subject: [PATCH] Provides text preview whenever the seekbar progress changes

When the font scale is modified by the icon buttons, we also like to show
the preview of text first to avoid the feeling of lag for users to wait
for the system font size change.

Bug: 279525588
Test: manually - attach the video to the bug
Change-Id: I8da85eb9b264f331c4347a87e2107d52872f4274
---
 .../accessibility/fontscaling/FontScalingDialog.kt        | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialog.kt b/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialog.kt
index a5b7878f22aa0..e79b3f4bf3ad3 100644
--- a/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialog.kt
+++ b/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialog.kt
@@ -107,13 +107,13 @@ class FontScalingDialog(
                 var isTrackingTouch = false
 
                 override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+                    // Always provide preview configuration for text first when there is a change
+                    // in the seekbar progress.
+                    createTextPreview(progress)
+
                     if (!isTrackingTouch) {
                         // The seekbar progress is changed by icon buttons
                         changeFontSize(progress, CHANGE_BY_BUTTON_DELAY_MS)
-                    } else {
-                        // Provide preview configuration for text instead of changing the system
-                        // font scale before users release their finger from the seekbar.
-                        createTextPreview(progress)
                     }
                 }