tmfang b429213e00 Fix crash on Storage and Privacy page
The implementation in PreferenceGroup is changed,
contentEquals doesn't accept null value.

So, we won't call findPreference when key of controller
is null.

Test: robotest, maunal test
Fixes: 122805831

Change-Id: Ia6df5c536ca5a32448f66b5308e7ec2334f1fe7b
(cherry picked from commit 3314cd05d5b97368e7c8f7ea7470f7321fbcdf95)
2019-01-14 23:49:34 +00:00
2018-12-05 08:15:17 +08:00
2019-01-09 18:25:31 +08:00
2018-12-18 09:51:08 +00:00
2018-12-19 20:24:23 -08:00
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