Update API doc of Typeaface.setSystemFallback

Bug: 116116764
Test: N/A
Change-Id: I97ebdcfd8d4b4efb0a1d9e3729f74fe7fba96b12

1 files changed, 5 insertions, 0 deletions

diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index 7e8bfb300c1a..bf969ef15c5b 100644
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -664,6 +664,11 @@ public class Typeface {
         /**
          * Sets a system fallback by name.
          *
+         * You can specify generic font familiy names or OEM specific family names. If the system
+         * don't have a specified fallback, the default fallback is used instead.
+         * For more information about generic font families, see <a
+         * href="https://www.w3.org/TR/css-fonts-4/#generic-font-families">CSS specification</a>
+         *
          * For more information about fallback, see class description.
          *
          * @param familyName a family name to be used for fallback if the provided fonts can not be