D9296: Acquire wifi multicast lock

[Matthijs Tijink]

mtijink created this revision.
mtijink added a reviewer: KDE Connect.

REVISION SUMMARY
  This ensures the device can receive UDP broadcast packets, required for discovering devices correctly.
  
  May appear unnecessary for some devices/other installed applications, but is needed for correctness (see https://stackoverflow.com/questions/30648334/is-change-wifi-multicast-state-permission-and-use-of-wifimanager-multicastlock-r or https://stackoverflow.com/questions/27838660/moto-g-dosent-receive-udp-packets-over-wifi-network)

TEST PLAN
  Worked on my device, but it does not appear necessary for my device either. Hopefully it solves some problems for others.

REPOSITORY
  R225 KDE Connect - Android application

BRANCH
  wifi-multicast-lock

REVISION DETAIL
  https://phabricator.kde.org/D9296

AFFECTED FILES
  src/org/kde/kdeconnect/Backends/LanBackend/LanLinkProvider.java

To: mtijink, #kde_connect
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