[ios2]蓝牙通信【转】

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[ios2]蓝牙通信【转】
iPhone开发应用中关于GameKit蓝牙实例讲解是本文要介绍的内容，主要是来了解并学习GameKit蓝牙实例。介绍一下这个实例实现的是两个带有蓝牙设备的touch之间的一个小游戏，在界面上有个可以响应事件的UIView（之前说过）可以点击，然后看谁新达到WINNING_TAP_COUNT （游戏中一常量可以自己设置）谁先达到谁就赢了，然后通知对方。还要引入GameKit.framework框架
头文件BlueToothViewController.h：
[pre]
1. // // BlueToothViewController.h
2. // BlueTooth //
3. // Created by mingchun liu on 09-11-24. // Copyright sdie 2009. All rights reserved.
4. //
5. #import <UIKit/UIKit.h> #import <GameKit/GameKit.h>
6. #define START_GAME_KEY @"startgame"
7. #define END_GAME_KEY @"endgame" #define TAP_COUNT_KEY @"taps"
8. #define WINNING_TAP_COUNT 50
9. #define AMIPHD_P2P_SESSION_ID @"amiphdp2p2"//这个是蓝牙协议
10. @interface BlueToothViewController : UIViewController<GKPeerPickerControllerDelegate,GKSessionDelegate>{ BOOL actingAsHost;//是否提供服务,客户端还是服务器端
11. int playerTapCount;//记录玩家点击次数 int opponentTapCount;//对方点击次数
12. IBOutlet UILabel *playerTapCountLabel;//显示玩家点击次数 IBOutlet UILabel *opponentTapCountLabel;//显示对手点击次数
13. NSString *opponentID;//对方标识符 GKSession *gkSession;
14. IBOutlet UILabel *startQuitButton;//开始退出按钮
15. }
16. @property BOOL actingAsHost; @property int playerTapCount;
17. @property int opponentTapCount; @property (nonatomic,retain) GKSession *gkSession;
18. @property (nonatomic,retain) NSString *opponentID;
19. @property (nonatomic,retain)UILabel *playerTapCountLabel;
20. @property (nonatomic,retain)UILabel *opponentTapCountLabel;
21. @property (nonatomic,retain)UILabel *startQuitButton;
22. -(IBAction) handleStartQuitTapped;//处理开始退出操作 -(IBAction) handleTapViewTapped;//处理点击UIView的操作
23. -(void) updateTapCountLabels;//更新显示 -(void) initGame;//初始化游戏
24. -(void) hostGame; -(void) joinGame;//加入游戏
25. -(void) endGame;//结束游戏 -(void) showEndGameAlert;//弹出结束游戏对话框
26. @end
27. #import "BlueToothViewController.h"
28. @implementation BlueToothViewController
29. @synthesize actingAsHost; @synthesize playerTapCount;
30. @synthesize opponentID; @synthesize playerTapCountLabel;
31. @synthesize opponentTapCountLabel;
32. @synthesize startQuitButton; @synthesize gkSession;
33. @synthesize opponentTapCount;
34. -(IBAction) handleStartQuitTapped {//建立链接操作,弹出链接窗口显示在线 if (! opponentID) {//如果对手ID为空就建立服务端提供服务
35. actingAsHost = YES; GKPeerPickerController *peerPickerController =[[GKPeerPickerController alloc] init];
36. peerPickerController.delegate = self; peerPickerController.connectionTypesMask =
37. GKPeerPickerConnectionTypeNearby; [peerPickerController show];
38. } }
39. -(IBAction) handleTapViewTapped {//点击操作 playerTapCount++;
40. [self updateTapCountLabels]; // did we just win?
41. BOOL playerWins = playerTapCount >= WINNING_TAP_COUNT;//当点击达到一定次数时 // send tap count to peer
42. NSMutableData *message = [[NSMutableData alloc] init];//传的数据类型为nsdata类型的 NSKeyedArchiver *archiver =
43. [[NSKeyedArchiver alloc] initForWritingWithMutableData:message]; [archiver encodeInt:playerTapCount forKey: TAP_COUNT_KEY];
44. if (playerWins) [archiver encodeBool:YES forKey:END_GAME_KEY];
45. [archiver finishEncoding];//打包传数据 GKSendDataMode sendMode =
46. playerWins ? GKSendDataReliable : GKSendDataUnreliable;//判断用可靠的链接还是不可靠的链接 [gkSession sendDataToAllPeers: message withDataMode:sendMode error:NULL];//发送数据
47. [archiver release]; [message release];
48. // also end game locally if (playerWins)
49. [self endGame]; }
50. -(void) updateTapCountLabels {
51. playerTapCountLabel.text = [NSString stringWithFormat:@"%d", playerTapCount];
52. opponentTapCountLabel.text = [NSString stringWithFormat:@"%d", opponentTapCount];
53. } -(void) initGame {
54. playerTapCount = 0; opponentTapCount = 0;
55. } -(void) hostGame {
56. [self initGame]; NSMutableData *message = [[NSMutableData alloc] init];
57. NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:message];
58. [archiver encodeBool:YES forKey:START_GAME_KEY]; [archiver finishEncoding];
59. NSError *sendErr = nil; [gkSession sendDataToAllPeers: message
60. withDataMode:GKSendDataReliable error:&sendErr]; if (sendErr)
61. NSLog (@"send greeting failed: %@", sendErr); // change state of startQuitButton
62. startQuitButton.text = @"Quit"; [message release];
63. [archiver release]; [self updateTapCountLabels];
64. } -(void) joinGame {
65. [self initGame]; startQuitButton.text = @"Quit";
66. [self updateTapCountLabels]; }
67. //一下是代理方法
68. -(GKSession *) peerPickerController: (GKPeerPickerController*) controller
69. sessionForConnectionType: (GKPeerPickerConnectionType) type { if (!gkSession) {//如果没有链接时建立连接
70. gkSession = [[GKSession alloc] initWithSessionID:AMIPHD_P2P_SESSION_ID//根据此值判断用的是什么链接
71. displayName:nil//在线用户名 sessionMode:GKSessionModePeer];
72. gkSession.delegate = self; }
73. return gkSession; }
74. - (void)peerPickerController:(GKPeerPickerController *)picker didConnectPeer:(NSString *)peerID toSession:(GKSession *)session
75. {//当picker接收到数据后将其释放掉，否则进入不了界面 [picker dismiss];
76. picker.delegate = nil; [picker autorelease];
77. } - (void)session:(GKSession *)session
78. didReceiveConnectionRequestFromPeer:(NSString *)peerID {//已接受连接请求的代理方法 actingAsHost = NO;//设为客户端
79. }
80. - (void)session:(GKSession *)session peer:(NSString *)peerID didChangeState:(GKPeerConnectionState)state {//状态改变时触发的代理方法
81. switch (state) {
82. case GKPeerStateConnected: [session setDataReceiveHandler: self withContext: nil];
83. opponentID = peerID;//改变opponentID的值 actingAsHost ? [self hostGame] : [self joinGame];//
84. break; }
85. }
86. - (void) receiveData: (NSData*) data fromPeer: (NSString*) peerID inSession: (GKSession*) session context: (void*) context {//接受数据时的代理操作
87. NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];
88. if ([unarchiver containsValueForKey:TAP_COUNT_KEY]) { opponentTapCount = [unarchiver decodeIntForKey:TAP_COUNT_KEY];
89. [self updateTapCountLabels]; }
90. if ([unarchiver containsValueForKey:END_GAME_KEY]) { [self endGame];
91. } if ([unarchiver containsValueForKey:START_GAME_KEY]) {
92. [self joinGame]; }
93. [unarchiver release]; }
94. //以上是代理方法
95. -(void) showEndGameAlert { BOOL playerWins = playerTapCount> opponentTapCount;
96. UIAlertView *endGameAlert = [[UIAlertView alloc] initWithTitle: playerWins ? @"Victory!" : @"Defeat!"
97. message: playerWins ? @"Your thumbs have emerged supreme!": @"Your thumbs have been laid low"
98. delegate:nil cancelButtonTitle:@"OK"
99. otherButtonTitles:nil]; [endGameAlert show];
100. [endGameAlert release]; }
101. -(void) endGame { opponentID = nil;
102. startQuitButton.text = @"Find"; [gkSession disconnectFromAllPeers];
103. [self showEndGameAlert]; }
104. /*
105. // The designated initializer. Override to perform setup that is required before the view is loaded. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
106. if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Custom initialization
107. } return self;
108. } */
109. /*
110. // Implement loadView to create a view hierarchy programmatically, without using a nib. - (void)loadView {
111. } */
112. /*
113. // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad {
114. [super viewDidLoad]; }
115. */
116. /* // Override to allow orientations other than the default portrait orientation.
117. - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations
118. return (interfaceOrientation == UIInterfaceOrientationPortrait); }
119. */
120. - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview.
121. [super didReceiveMemoryWarning];
122. // Release any cached data, images, etc that aren't in use. }
123. - (void)viewDidUnload {
124. // Release any retained subviews of the main view. // e.g. self.myOutlet = nil;
125. }
126. - (void)dealloc { [opponentID release];
127. [playerTapCountLabel release]; [opponentTapCountLabel release];
129. [startQuitButton release]; [gkSession release];
130. [super dealloc]; }
[/pre]小结：iPhone开发之GameKit蓝牙实例讲解的内容介绍完，希望通过本文的学习能对你有所帮助！
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原文地址：https://www.cnblogs.com/jinjiantong/p/3141389.html