a6925f2936
Refresh the preference every time the listener is added, not only for the first callback registration. This is needed because when switching fragments, the callback is unregistered by ConnectedDeviceGroupController, so no updates are received in the child fragments. This is handled differently by other device updaters. UsbConnectionBroadcastReceiver invokes onReceive() in register() to force a refresh. BluetoothDeviceUpdater requires the caller to do a force refresh explicitly. This CL goes with the latter pattern. Flag: com.android.settings.flags.display_topology_pane_in_display_list Test: open CD settings fragment, remove all displays, then go back to CD entry fragment Bug: b/398042811 Change-Id: Id139f227b1d59bde0174538b29b46fdd21ec0d24