@Override
public void onPause() {
super.onPause();
if (udpSending != null) {
udpSending.interrupt();
udpSending = null;
}
if (udpReceiving != null) {
if (udpReceiving.isAlive()) udpReceiving.interrupt();
udpReceiving = null;
}
NetpowerctrlApplication.getMainThreadHandler().removeCallbacks(advanceTimeRunnable);
NetpowerctrlApplication.getMainThreadHandler().removeCallbacks(sendDiscoverMessageRunnable);
// Stop tcp receiver
NeighbourDataReceiveService.stop();
try {
getActivity().unregisterReceiver(wifiChanged);
} catch (IllegalArgumentException ignored) {
}
wifiChanged = null;
}
@Override
public void onResume() {
super.onResume();
udpSending = new UDPSending(true);
udpSending.start("NeighbourUDPSendThread");
udpReceiving = new NeighbourDiscoverReceiving(this);
udpReceiving.start();
advanceTimeRunnable.run();
// Reset icon size cache, will be set on next sending
NeighbourDiscoverSending.icon_size_cache = -1;
checkNetworkState();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
//noinspection ConstantConditions
getActivity().registerReceiver(wifiChanged, intentFilter);
}