commit acdb2d29e90c55ed20f16b9609c7709d65a4f8d6
author changbetty <changbetty@google.com> Mon Sep 21 18:12:03 2020 +0800
committer SongFerngWang <songferngwang@google.com> Thu Feb 04 12:53:16 2021 +0800
tree 49835fc6a806337d85b840115c2726b258400ca5
parent 6dc9f825ec836963e6d6c17cd3c658f08f447259

[Telephony settings] Settings crashes when rotate screen in Preferred network type

When activity is recreated, fragments are automatically reattached.
Need to check the savedInstanceState is null or not when we want to add framgment in MobileNetworkActivity.
(lost to check in ag/9667137)

Bug: 154087690
Test: Manual
      make RunSettingsRoboTests -j ROBOTEST_FILTER=MobileNetworkActivityTest
Change-Id: Id169353f6dc10306dddd823a904f0803b26a6ddc
Merged-In: Id169353f6dc10306dddd823a904f0803b26a6ddc