iphone간 bluetooth 연결 sample

iphone간 bluetooth 연결 sample

Sameple Code : need GameKit Framework

BluetoothSampleAppDelegate.h

//
// BluetoothSampleAppDelegate.h
// BluetoothSample
//

#import "EAGLView.h"
#import <GameKit/GameKit.h>

@interface BluetoothSampleAppDelegate : NSObject  {
    UIWindow *window;
    EAGLView *glView;

    GKPeerPickerController *picker;
    GKSession *session;

    int myNumber;
    NSData *myData;
    UILabel *textView;
}

@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet EAGLView *glView;
@property (nonatomic, retain) GKPeerPickerController *picker;
@property (nonatomic, retain) GKSession *session;

- (void)mySendData;

@end

BluetoothSampleAppDelegate.m

//
// BluetoothSampleAppDelegate.m
// BluetoothSample
//

#import "BluetoothSampleAppDelegate.h"

@implementation BluetoothSampleAppDelegate
@synthesize picker;
@synthesize session;
@synthesize window;
@synthesize glView;

- (void)applicationDidFinishLaunching:(UIApplication *)application
{
    // setup the text view
    myNumber = 0;
    textView = [[UILabel alloc] initWithFrame:CGRectMake(10.0f, 10.0f, 640.0f, 12.0f)];
    textView.text = [NSString stringWithFormat:@"myNumber: %i\n", myNumber];
    [window addSubview:textView];
    [window bringSubviewToFront:textView];

    // start the EAGLView
    glView.animationInterval = 1.0 / 60.0;
    [glView startAnimation];

    // allocate the NSData
    myData = [[NSData alloc] initWithBytes:&myNumber length:sizeof(int)];

    // allocate and setup the peer picker controller
    picker = [[GKPeerPickerController alloc] init];
    picker.delegate = self;
    picker.connectionTypesMask = GKPeerPickerConnectionTypeNearby |
                                 GKPeerPickerConnectionTypeOnline;
    [picker show];
}

- (void)applicationWillResignActive:(UIApplication *)application
{
    glView.animationInterval = 1.0 / 5.0;
}

- (void)applicationDidBecomeActive:(UIApplication *)application
{
    glView.animationInterval = 1.0 / 60.0;
}

- (void)peerPickerController:(GKPeerPickerController *)picker didSelectConnectionType:
(GKPeerPickerConnectionType)type
{
    if(type == GKPeerPickerConnectionTypeOnline)
    {
        [self.picker dismiss];
        [self.picker release];
        self.picker = nil;

        // Display your own UI here.
    }
}

- (GKSession *) peerPickerController:(GKPeerPickerController *)picker
sessionForConnectionType:(GKPeerPickerConnectionType)type
{
    session = [[GKSession alloc] initWithSessionID:@"FR" displayName:nil
                                            sessionMode:GKSessionModePeer];
    session.delegate = self;
    return session;
}

- (void)session:(GKSession *)session peer:(NSString *)peerID didChangeState:
                    (GKPeerConnectionState)state
{
    switch (state)
    {
        case GKPeerStateConnected:
            [self.session setDataReceiveHandler :self withContext:nil];
            [self mySendData]; // start off by sending data upon connection
            break;
        case GKPeerStateDisconnected:
            break;
    }
}

- (void)peerPickerController:(GKPeerPickerController *)picker didConnectToPeer:
                (NSString *)peerID
{
    printf("connection was successful! start the game.\n");
}

- (void)peerPickerControllerDidCancel:(GKPeerPickerController *)picker
{
    printf("connection attempt was canceled\n");
}

- (void)mySendData
{
    // allocate the NSData
    myNumber++;
    myData = [[NSData alloc] initWithBytes:&myNumber length:sizeof(int)];
    [session sendDataToAllPeers :myData withDataMode:GKSendDataReliable error:nil];
    printf("send data: %i\n", myNumber);
    textView.text = [NSString stringWithFormat:@"myNumber: %i\n", myNumber];
}

- (void) receiveData:(NSData *)data fromPeer:(NSString *)peer inSession:(GKSession *)session
                                 context:(void *)context
{
    // Read the bytes in data and perform an application-specific action,
    // then free the NSData object

    [data getBytes:&myNumber length:sizeof(int)];
    printf("received data: %i from: %s\n", myNumber, [peer UTF8String]);
    textView.text = [NSString stringWithFormat:@"myNumber: %i\n", myNumber];
    [self mySendData];
}

- (void)dealloc
{
    [picker release];
    [session release];
    [textView release];
    [glView release];
    [window release];
    [super dealloc];
}

@end