From 3ca5633054339e172c865363f7ade37edd3f8ba1 Mon Sep 17 00:00:00 2001
From: Beverly <beverlyt@google.com>
Date: Wed, 12 Jul 2023 18:51:36 +0000
Subject: [PATCH] Set initial udfps alpha state to 0f

To avoid flicker of icon when it's first attached
in case it shouldn't be immediately shown. The transition
will be the first to update the view's alpha.

Test: manually enable udfps refactor, enroll udfps,
observe transition between home => AOD
Bug: 278719514

Change-Id: I752008928cd619c3b32af8b5b0164292bc23d662
---
 .../systemui/keyguard/ui/binder/UdfpsAodFingerprintViewBinder.kt | 1 +
 .../systemui/keyguard/ui/binder/UdfpsBackgroundViewBinder.kt     | 1 +
 .../systemui/keyguard/ui/binder/UdfpsFingerprintViewBinder.kt    | 1 +
 3 files changed, 3 insertions(+)

diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsAodFingerprintViewBinder.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsAodFingerprintViewBinder.kt
index 728dd39116637..9872d97021fa3 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsAodFingerprintViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsAodFingerprintViewBinder.kt
@@ -37,6 +37,7 @@ object UdfpsAodFingerprintViewBinder {
         view: LottieAnimationView,
         viewModel: UdfpsAodViewModel,
     ) {
+        view.alpha = 0f
         view.repeatWhenAttached {
             repeatOnLifecycle(Lifecycle.State.STARTED) {
                 launch {
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsBackgroundViewBinder.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsBackgroundViewBinder.kt
index 26ef4685d2866..0113628c30ca5 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsBackgroundViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsBackgroundViewBinder.kt
@@ -38,6 +38,7 @@ object UdfpsBackgroundViewBinder {
         view: ImageView,
         viewModel: BackgroundViewModel,
     ) {
+        view.alpha = 0f
         view.repeatWhenAttached {
             repeatOnLifecycle(Lifecycle.State.STARTED) {
                 launch {
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsFingerprintViewBinder.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsFingerprintViewBinder.kt
index 0ab8e52fb6c73..bab04f234b3fb 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsFingerprintViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/UdfpsFingerprintViewBinder.kt
@@ -42,6 +42,7 @@ object UdfpsFingerprintViewBinder {
         view: LottieAnimationView,
         viewModel: FingerprintViewModel,
     ) {
+        view.alpha = 0f
         view.repeatWhenAttached {
             repeatOnLifecycle(Lifecycle.State.STARTED) {
                 launch {