- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

    NSArray *peripheralManagerIdentifiers = launchOptions[UIApplicationLaunchOptionsBluetoothPeripheralsKey];

    if (peripheralManagerIdentifiers) {

        // We've restored, so create the _manager on the main queue
        _manager = [[CBPeripheralManager alloc] initWithDelegate:self
                                                          queue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
                                                        options:@{CBPeripheralManagerOptionRestoreIdentifierKey:@"YourUniqueIdentifier"}];

    } else {

        // Not restored so just create as normal
        manager = [[CBPeripheralManager alloc] initWithDelegate:self
                                                          queue:nil
                                                        options:@{CBPeripheralManagerOptionRestoreIdentifierKey:@"YourUniqueIdentifier"}];

    }
return YES;
}