适用于ScanForPeripheral的状态保留和还原iOS

Question

1. can State Reservation and restoration do scanForPeripherals(withServices: nil, options: [CBCentralManagerScanOptionAllowDuplicatesKey : true] ?

2. my aim is to do scan, connect and write to peripheral from background. So far, I got that scanning in background needs specific service UUID. Is there another way to do scanning etc in background without define service UUID ?

I'm using iBeacon and swift 3

Answer 1

不幸的是，不，如果您不提供Service UUID，除非您的应用程序位于前台，否则CoreBluetooth不会提供回调。