From 04a84559fd11b36196872b1ac0cb82e5f7367806 Mon Sep 17 00:00:00 2001
From: Raph Levien <raph@google.com>
Date: Thu, 9 Jul 2015 15:38:04 -0700
Subject: [PATCH] Fix StaticLayout crash when maxLines = 0

An app setting maxLines = 0 is an edge case, but it can happen. We
had some logic that would index an array at -1 in that case. This
patch just skips the fixup of the ellipsis line break in that case.

Bug: 22353342
Change-Id: I940cf0782b319010f5aedf75b9291df4ac2976d8
---
 core/java/android/text/StaticLayout.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/java/android/text/StaticLayout.java b/core/java/android/text/StaticLayout.java
index cdff395a3fa91..efc9e1ae4aa60 100644
--- a/core/java/android/text/StaticLayout.java
+++ b/core/java/android/text/StaticLayout.java
@@ -744,7 +744,8 @@ public class StaticLayout extends Layout {
                     && (ellipsize == TextUtils.TruncateAt.END
                         || (mMaximumVisibleLineCount == 1
                                 && ellipsize != TextUtils.TruncateAt.MARQUEE));
-            if (remainingLineCount < breakCount && ellipsisMayBeApplied) {
+            if (remainingLineCount > 0 && remainingLineCount < breakCount &&
+                    ellipsisMayBeApplied) {
                 // Treat the last line and overflowed lines as a single line.
                 breaks[remainingLineCount - 1] = breaks[breakCount - 1];
                 // Calculate width and flag.