From f3b26292efc51be58497b8a850d010f9a22ebd27 Mon Sep 17 00:00:00 2001
From: Lucas Dupin <dupin@google.com>
Date: Thu, 14 Mar 2019 16:06:22 -0700
Subject: [PATCH] Let scanning progress loop

Bug: 111414690
Test: visual
Change-Id: Ic4e6e1198acaf8666bb944ae6244243f8f02f7c5
---
 .../systemui/statusbar/phone/LockIcon.java        | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/LockIcon.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/LockIcon.java
index b7d1fc697f2a0..b6545a5bd7321 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/LockIcon.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/LockIcon.java
@@ -21,6 +21,7 @@ import android.content.res.Configuration;
 import android.content.res.TypedArray;
 import android.graphics.Color;
 import android.graphics.PorterDuff;
+import android.graphics.drawable.Animatable2;
 import android.graphics.drawable.AnimatedVectorDrawable;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
@@ -134,6 +135,16 @@ public class LockIcon extends KeyguardAffordanceView implements OnUserInfoChange
 
             if (animation != null && isAnim) {
                 animation.forceAnimationOnUI();
+                animation.clearAnimationCallbacks();
+                animation.registerAnimationCallback(new Animatable2.AnimationCallback() {
+                    @Override
+                    public void onAnimationEnd(Drawable drawable) {
+                        if (getDrawable() == animation && state == getState()
+                                && doesAnimationLoop(iconAnimRes)) {
+                            animation.start();
+                        }
+                    }
+                });
                 animation.start();
             }
 
@@ -215,6 +226,10 @@ public class LockIcon extends KeyguardAffordanceView implements OnUserInfoChange
         return mContext.getDrawable(iconRes);
     }
 
+    private boolean doesAnimationLoop(int resourceId) {
+        return resourceId == com.android.internal.R.anim.lock_scanning;
+    }
+
     private static int getAnimationResForTransition(int oldState, int newState,
             boolean wasPulsing, boolean pulsing,
             boolean wasDozing, boolean dozing) {