From 18dcd47796c4e6b5b3c31ea44abfb041a61857fc Mon Sep 17 00:00:00 2001
From: Vishwath Mohan <vishwath@google.com>
Date: Thu, 29 Mar 2018 17:56:33 +0000
Subject: [PATCH] Don't clear mPattern when clearing visual pattern.

This CL ensures that when clearing the lockscreen pattern in
onHandleUp(), we retain mPattern. This fixes a bug that prevents
changing from Pattern to other modalities.

Bug: 77257848
Test: Change from pattern to pin/password

Change-Id: Ied74eafd17939214c62bdd617ecef7a9974f755d
---
 core/java/com/android/internal/widget/LockPatternView.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/java/com/android/internal/widget/LockPatternView.java b/core/java/com/android/internal/widget/LockPatternView.java
index 51dd92961f54a..e8fc5989354a6 100644
--- a/core/java/com/android/internal/widget/LockPatternView.java
+++ b/core/java/com/android/internal/widget/LockPatternView.java
@@ -1000,6 +1000,11 @@ public class LockPatternView extends View {
             setPatternInProgress(false);
             cancelLineAnimations();
             notifyPatternDetected();
+            // Also clear pattern if fading is enabled
+            if (mFadePattern) {
+                clearPatternDrawLookup();
+                mPatternDisplayMode = DisplayMode.Correct;
+            }
             invalidate();
         }
         if (PROFILE_DRAWING) {