From 8b4ed23ef73d0dcf848889b305c0adfb9faeea41 Mon Sep 17 00:00:00 2001
From: Pinyao Ting <pinyaoting@google.com>
Date: Tue, 17 Dec 2019 15:54:32 -0800
Subject: [PATCH] keep androidx fragment through proguard optimization

Bug: 146432215
Test: on android master, apply the proguard config, build and flash and
verifies crash no longer occurs

Change-Id: Ie967bcbd33bfbc1b8ec088c55829760145f7b597
---
 proguard.flags | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/proguard.flags b/proguard.flags
index 272ab7a7f1..3e12283d28 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -23,7 +23,10 @@
 # support jar.
 -keep class androidx.recyclerview.widget.RecyclerView { *; }
 
-# Preference fragments
+# Fragments
+-keep class ** extends androidx.fragment.app.Fragment {
+    public <init>(...);
+}
 -keep class ** extends android.app.Fragment {
     public <init>(...);
 }
@@ -50,4 +53,4 @@
 -dontwarn android.app.**
 -dontwarn android.view.**
 -dontwarn android.os.**
--dontwarn android.graphics.**
\ No newline at end of file
+-dontwarn android.graphics.**