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POGameKit: What is the connection type when using GKSession without GKPeerPickerController
 

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    <p>I am implementing a <code>BlueTooth</code> and <code>Wifi</code> Based chat program for <code>iPhone</code>. For connection purpose I am using <code>GameKit</code>. But because of some special requirements application I can't use the default <code>GKPeerPickerController</code>. So I instead I created a <code>GKSession</code> and <code>GKSessionDelegate</code> combo to detect the peers. After they find each other, they can chat.</p> <p>Now I have tested the chat functionality on three <code>mac-minis</code> using <code>simulator</code>, one simulator and one <code>iPod</code>, one <code>iPhone</code> and one <code>Simulator</code>. I am able to chat in all of the above scenarios. But some how the <code>iPhone</code> and <code>iPod</code> won't detect each other.</p> <p>Also I am curious about type of connection is happening between all these devices. Because theoretically <code>GameKit</code> supports both, <code>BlueTooth</code> and <code>WiFi</code>. Now the problem is that <code>GKPeerPickerController</code> let's one choose specifically between <code>BlueTooth</code> and <code>WiFi</code>, (unfortunately the implementation of <code>WiFi</code> is not documented anywhere.) This is fine, but what about the custom scenario when one implements his or her own <code>GKSession</code> and <code>GKSessionDelegate</code> Combo. When one creates <code>GKSession</code> Object using the only <code>init</code> method available: </p> <pre><code>– initWithSessionID:displayName:sessionMode: </code></pre> <p>only configuration option this provides is <code>sessionMode</code> but it has only three options </p> <pre><code> GKSessionModeServer, GKSessionModeClient, GKSessionModePeer, </code></pre> <p>None of which indicates connection choice between <code>Bluetooth</code> and <code>WiFi</code>. </p> <p>But I have disabled <code>bluetooth</code> on the <code>iPod</code> and tested it with a <code>mac-mini</code> it works so I guess this is using <code>WiFi</code>. Also in the log I get following line:</p> <pre><code>DNSServiceRegister callback: Ref=4c3f3d0, Flags=2, ErrorType=0 name=00XGT0H0A..BTChat1 regtype=_0eilkgh5o2mq17._udp. domain=local. </code></pre> <p>The <code>DNSServiceRegister</code> and <code>udp</code> part make me think the communication is happening over <code>TCP/IP</code>. </p> <p>So does this mean that when I start with <code>GKSession</code> and <code>GKSessionDelegate</code> the default method of communication is WiFi only, or does it support <code>WiFi</code> and <code>bluetooth</code> both at the same time (though I never got a single indication that <code>BlueTooth</code> connection was happening). </p> <p>But <code>GameKit</code> is supposed to be mainly about <code>BlueTooth</code> Right? Can anybody put light on the situation about what exactly is happening?</p> <p>Also have you seen any sample code where somebody has implemented WiFi interface for <code>GKPeerPickerController</code>?</p> <hr> <p><strong>Solved:</strong></p> <p>OK Found it myself. <code>GKSession</code> and <code>GKSessionDelegate</code> custom implementations as I have mentioned in the question works for both <code>bluetooth</code> and <code>WiFi</code>. Actually the <code>iPhone (JailBroked)</code> I am using had some issues with <code>BlueTooth</code> and possibly that was preventing <code>Gamekit</code> to Work Properly, After hard resetting the phone and turning <code>Airplane</code> mode on off , <code>bluetooth</code> on off a few times got the <code>bluetooth</code> working on the phone. Now the app is working fine in both <code>WiFi</code> and <code>BlueTooth</code> mode.</p>
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    1. USPritam Barhate
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    1. COHi Pritam, that's to say, there is no way to set which way(bluetooth or wifi) to communicate with, right?
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    2. CO@Dio yes, at least that was how it was when I coded that piece, but it has been long time since then and I haven't kept up with GameKit.
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