Re: Use 2 central Manager

Subject: Re: Use 2 central Manager
From: András Kövi <email@hidden>
Date: Fri, 25 Jan 2013 16:09:52 +0100

When I tried that, the results were disastrous. Start a request on one manager and receive the callback on the other... It's possible that I messed up something but not very likely. However, the things you describe are easily handleable by one CM. Why would you use two?

I suggest you try to optimize your use case for one CM.

Note: The CBPeripheral is an internal object and it is connected to the CentralManager. You shouldn't suppose anything on the lifecycle of the CBPeriperal or its values. However, you start a connection to it, then you must keep the reference as long as the connection is alive, otherwise you'll get a warning that the peripheral is being deallocated while it is connected or the CM is trying to connect to it. This is an annoying behavior but we have to live with it.

Cheers,

Andras

2013/1/25 Alpwise iOS Dev <email@hidden>

Hi,

I would use 2 central manager, one to manage the discovery and another to manage the connection.

So i need to pass a CBPeripheral discover from a CBCentralManager to another CBCentralManager.

Has someone already try that?

Here is my example.
===============================

-(void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI

{
// central != _centralManager
_peripheralDiscovered = peripheral;
[_centralManager connectPeripheral:peripheral options:nil];
}

-(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral

{
// central == _centralManager
// peripheral != _peripheralDiscovered but [peripheral UUID] == [_peripheralDiscovered UUID]
}

===============================
It seems that a new CBPeripheral is allocated when the central change. It is a normal behavior?

Thanks,

Samuel.

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