From 8e2189dc712acdc1c3369db89bc7e2401a9085af Mon Sep 17 00:00:00 2001
From: Jorim Jaggi <jjaggi@google.com>
Date: Tue, 8 Jan 2019 12:43:07 +0100
Subject: [PATCH] Add better information for invalid path

Test: Fling shade
Bug: 120200303
Change-Id: Id2ca27e059c58471e6f0cd262a04d19c42afe348
---
 .../systemui/statusbar/FlingAnimationUtils.java   | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/FlingAnimationUtils.java b/packages/SystemUI/src/com/android/systemui/statusbar/FlingAnimationUtils.java
index 758fb7a9971e2..22d1d5b233cef 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/FlingAnimationUtils.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/FlingAnimationUtils.java
@@ -18,12 +18,14 @@ package com.android.systemui.statusbar;
 
 import android.animation.Animator;
 import android.content.Context;
+import android.util.Log;
 import android.view.ViewPropertyAnimator;
 import android.view.animation.Interpolator;
 import android.view.animation.PathInterpolator;
 
 import com.android.systemui.Interpolators;
 import com.android.systemui.statusbar.notification.NotificationUtils;
+import com.android.systemui.statusbar.phone.StatusBar;
 
 /**
  * Utility class to calculate general fling animation when the finger is released.
@@ -196,9 +198,16 @@ public class FlingAnimationUtils {
         if (startGradient != mCachedStartGradient
                 || velocityFactor != mCachedVelocityFactor) {
             float speedup = mSpeedUpFactor * (1.0f - velocityFactor);
-            mInterpolator = new PathInterpolator(speedup,
-                    speedup * startGradient,
-                    mLinearOutSlowInX2, mY2);
+            float x1 = speedup;
+            float y1 = speedup * startGradient;
+            float x2 = mLinearOutSlowInX2;
+            float y2 = mY2;
+            try {
+                mInterpolator = new PathInterpolator(x1, y1, x2, y2);
+            } catch (IllegalArgumentException e) {
+                throw new IllegalArgumentException("Illegal path with "
+                        + "x1=" + x1 + " y1=" + y1 + " x2=" + x2 + " y2=" + y2, e);
+            }
             mCachedStartGradient = startGradient;
             mCachedVelocityFactor = velocityFactor;
         }