govenliu 623e8570b9 [Wi-Fi] Un-relevant string flash then disappear in WiFi direct page.
The "PEER DEVICES" and "REMEMBERED GROUPS" two strings appear then disappear suddenly.

Solution: Set those two PreferenceGroups, which with empty preference
child, invisible before showing.

Bug: 141830944
Test: 1.Manual test. 2.Modify isAvailable() test case for make sure the
initial visible of empty group is invisible.
Change-Id: Ifb074ac758196096ca63b6f7fa1285f8148d98d4
2019-10-07 12:03:34 +08:00
2019-03-27 07:14:20 +08:00
2019-04-04 12:49:15 -07:00
2019-10-03 15:04:36 +08:00
2018-12-18 09:51:08 +00:00
2019-07-12 16:35:12 +08:00
2019-02-06 15:44:40 +00:00
Description
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3.1 GiB
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Java 89.8%
Kotlin 10.2%