Arc Wang 9d33313735 Fix Wi-Fi DPP fragment back stack problems
1. When a Wi-Fi network connected and receiving
   intent android.settings.PROCESS_WIFI_EASY_CONNECT_QR_CODE,
   show WifiDppAddDeviceFragment from WifiDppConfiguratorActivity
   instead of WifiNetworkListFragment

2. Only handle intent when savedInstanceState is null

3. To show a fragment
   I. do nothing when a fragment is already visible on screen,
   II. pop back stack if it's in back stack, we can do this because
   current fragment transactions are arranged in an order

Bug: 124194531
Test: atest WifiQrCodeTest
      atest WifiDppConfiguratorActivityTest
      atest WifiDppEnrolleeActivityTest
      atest WifiDppQrCodeGeneratorFragmentTest
      atest WifiDppQrCodeScannerFragmentTest
      atest WifiNetworkListFragmentTest
      atest WifiDppChooseSavedWifiNetworkFragmentTest

Change-Id: I1d44eeb3bdc7bfb2ec2e4d81efaab64b066651ad
2019-02-11 11:42:21 +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
2019-01-31 14:40:59 +00:00
Description
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3.1 GiB
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Java 89.8%
Kotlin 10.2%