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整体布局如下:

 
  程序结构如右图:

每日更新关注:http://weibo.com/hanjunqiang 
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==========================================================================

指定根视图:

  1.     RootViewController * rootVC = [[RootViewController alloc] init];
  2.     UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController:rootVC];
  3.     self.window.rootViewController= nav;

根视图:

  1. #import "RootViewController.h"
  2. #import "BlueSessionManager.h"
  3. #import "ChatCell.h"
  4. #import "ChatItem.h"
  5.  
  6. #import <AssetsLibrary/AssetsLibrary.h>
  7. #import <AVFoundation/AVFoundation.h>
  8.  
  9. #define kRecordAudioFile @"myRecord.caf"
  10.  
  11. // 判断大小
  12. #define HEIGHT [UIScreen mainScreen].bounds.size.height
  13. #define WIDTH [UIScreen mainScreen].bounds.size.width
  14. #define ChatHeight 45.0
  15.  
  16. @interface RootViewController ()<NSStreamDelegate,UITableViewDataSource,UITableViewDelegate,UITextViewDelegate,UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate,AVAudioRecorderDelegate,AVAudioPlayerDelegate>
  17. {
  18.     float _sendBackViewHeight;
  19.     float _sendTextViewHeight;
  20.  
  21.     UIImagePickerController * _picker;
  22.     UIView * _backRemindRecordView;
  23. }
  24.  
  25. // DataAndBlue
  26. @property(strong, nonatomic) BlueSessionManager *sessionManager;
  27.  
  28. @property(strong, nonatomic) NSMutableArray *datasource;
  29. @property(strong, nonatomic) NSMutableArray * myDataArray;
  30.  
  31. @property(strong, nonatomic) NSMutableData *streamData;
  32. @property(strong, nonatomic) NSOutputStream *outputStream;
  33. @property(strong, nonatomic) NSInputStream *inputStream;
  34.  
  35. // UI
  36. @property(strong, nonatomic) UITableView * tableView;
  37. @property(strong, nonatomic) UIView * sendBackView;
  38. @property(strong, nonatomic) UITextView * sendTextView;
  39. @property(strong, nonatomic) UIButton * sendButton;
  40.  
  41. // 语音播放
  42. @property (nonatomic,strong) AVAudioRecorder *audioRecorder;//音频录音机
  43. //音频播放器，用于播放录音文件
  44. @property (nonatomic,strong) AVAudioPlayer *audioPlayer;
  45.  
  46. @property (nonatomic,strong) NSTimer *timer;//录音声波监控（注意这里暂时不对播放进行监控）
  47.  
  48. @property (strong, nonatomic) UIProgressView *audioPower;//音频波动
  49.  
  50. @end
  51.  
  52. @implementation RootViewController
  53.  
  54. - (void)viewDidLoad {
  55.     [super viewDidLoad];
  56.  
  57.     [self makeBlueData];
  58.  
  59.     [self readyUI];
  60.  
  61.     [self buildVideoForWe];
  62.  
  63.     // Do any additional setup after loading the view
  64. }
  65.  
  66. #pragma mark  基本制作
  67.  
  68. - (void)readyUI
  69. {
  70.     self.title = @"蓝牙设置";
  71.     self.view.backgroundColor = [UIColor whiteColor];
  72.     self.automaticallyAdjustsScrollViewInsets = NO;
  73.  
  74.     NSArray * buttonTitleArray = @[@"寻找设备",@"打开天线"];
  75.     self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:buttonTitleArray[0] style:UIBarButtonItemStyleDone target:self action:@selector(lookOtherDevice)];
  76.     self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:buttonTitleArray[1] style:UIBarButtonItemStyleDone target:self action:@selector(showSelfAdvertiser)];
  77.     [self makeUIView];
  78.  
  79. }
  80. - (void)lookOtherDevice
  81. {
  82.     [self.sessionManager browseWithControllerInViewController:self connected:^{
  83.         NSLog(@"connected");
  84.     }                                                 canceled:^{
  85.         NSLog(@"cancelled");
  86.     }];
  87. }
  88.  
  89. - (void)showSelfAdvertiser
  90. {
  91.     [self.sessionManager advertiseForBrowserViewController];
  92. }
  93.  
  94. #pragma mark 制作页面UI
  95. - (void)makeUIView
  96. {
  97. //    NSLog(@"width === %f,height===== %f",WIDTH,HEIGHT);
  98.  
  99.     self.myDataArray = [NSMutableArray arrayWithCapacity:0];
  100.  
  101.     self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 64, WIDTH, HEIGHT - 64 - ChatHeight - 10)];
  102.     self.tableView.delegate = self;
  103.     self.tableView.dataSource = self;
  104.     self.tableView.separatorStyle = UITableViewCellSelectionStyleNone;
  105.  
  106.     [self.view addSubview:self.tableView];
  107.  
  108. //-------------------------------------------------------------------------//
  109.  
  110.     self.sendBackView = [[UIView alloc] initWithFrame:CGRectMake(0, HEIGHT - ChatHeight, WIDTH, ChatHeight)];
  111.     self.sendBackView.backgroundColor = [UIColor colorWithRed:240/255.0 green:240/255.0 blue:240/255.0 alpha:1.0];
  112.     [self.view addSubview:self.sendBackView];
  113.  
  114. //    float heightView = self.sendBackView.frame.size.height;
  115.  
  116.     self.sendTextView = [[UITextView alloc] initWithFrame:CGRectMake(10, 5, WIDTH - 10 - 90, 35)];
  117. //    self.sendTextView.backgroundColor = [UIColor lightGrayColor];
  118.     self.sendTextView.returnKeyType = UIReturnKeySend;
  119.     self.sendTextView.font = [UIFont systemFontOfSize:17];
  120.     self.sendTextView.editable = YES;
  121.     self.sendTextView.delegate = self;
  122.     [self.sendBackView addSubview:self.sendTextView];
  123.  
  124.     UIButton * addButton = [UIButton buttonWithType:UIButtonTypeContactAdd];
  125.     addButton.frame = CGRectMake(WIDTH - 85, 2, 37, 37);
  126.     [addButton addTarget:self action:@selector(addNextImage) forControlEvents:UIControlEventTouchUpInside];
  127.     [self.sendBackView addSubview:addButton];
  128.  
  129.     self.sendButton = [UIButton buttonWithType:UIButtonTypeCustom];
  130.     self.sendButton.frame = CGRectMake(WIDTH - 45, 5, 40, 30);
  131.  
  132.     [self.sendButton setImage:[UIImage imageNamed:@"record.png"] forState:UIControlStateNormal];
  133.     [self.sendButton addTarget:self action:@selector(videoRecord) forControlEvents:UIControlEventTouchUpInside];
  134.     [self.sendBackView addSubview:self.sendButton];
  135.  
  136.     // 增加通知
  137.     [self addTheNoticeForKeyDownUp];
  138.  
  139. }
  140.  
  141. #pragma mark 图片的传输---------///////
  142.  
  143. - (void)addNextImage
  144. {
  145.  
  146.     UIActionSheet *chooseImageSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"照相机",@"相册", nil];
  147.     [chooseImageSheet showInView:self.view];
  148. }
  149.  
  150. #pragma mark UIActionSheetDelegate Method
  151. -(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
  152. {
  153.     _picker = [[UIImagePickerController alloc] init];
  154.     _picker.delegate = self;
  155.  
  156.     switch (buttonIndex) {
  157.         case 0://Take picture
  158.  
  159.             if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
  160.             {
  161.  
  162.                 _picker.sourceType = UIImagePickerControllerSourceTypeCamera;
  163.             }
  164.  
  165.             [self presentViewController:_picker animated:NO completion:nil];
  166.  
  167.             break;
  168.  
  169.         case 1:
  170.             //From album
  171.             _picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
  172.  
  173.             [self presentViewController:_picker animated:NO completion:^{
  174.  
  175.                 // 改变状态栏的颜色  为正常  这是这个独有的地方需要处理的
  176.                 [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];
  177.             }];
  178.             break;
  179.  
  180.         default:
  181.  
  182.             break;
  183.     }
  184. }
  185.  
  186. // 相册
  187. -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
  188. {
  189.  
  190.     NSString *type = [info objectForKey:UIImagePickerControllerMediaType];
  191.     //当选择的类型是图片
  192.     if ([type isEqualToString:@"public.image"])
  193.     {
  194.         //先把图片转成NSData
  195.         UIImage* image = [info objectForKey:UIImagePickerControllerOriginalImage];
  196.         NSData *data;
  197.         if (UIImagePNGRepresentation(image) == nil)
  198.         {
  199.             data = UIImageJPEGRepresentation(image, 1.0);
  200.         }
  201.         else
  202.         {
  203.             data = UIImagePNGRepresentation(image);
  204.         }
  205.  
  206.         //图片保存的路径
  207.         //这里将图片放在沙盒的documents文件夹中
  208.         NSString * DocumentsPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
  209.  
  210.         //文件管理器
  211.         NSFileManager *fileManager = [NSFileManager defaultManager];
  212.  
  213.         //把刚刚图片转换的data对象拷贝至沙盒中 并保存为image.png
  214.         [fileManager createDirectoryAtPath:DocumentsPath withIntermediateDirectories:YES attributes:nil error:nil];
  215.         [fileManager createFileAtPath:[DocumentsPath stringByAppendingString:@"/image.png"] contents:data attributes:nil];
  216.  
  217.         //得到选择后沙盒中图片的完整路径
  218.         NSString * filePath = [[NSString alloc]initWithFormat:@"%@%@",DocumentsPath,  @"/image.png"];
  219.  
  220.         [_picker dismissViewControllerAnimated:NO completion:^{
  221.  
  222.             // 改变状态栏的颜色  改变为白色
  223.             [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
  224.  
  225.             // 这边是真正的发送
  226.             if(!self.sessionManager.isConnected)
  227.             {
  228.                 UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"蓝牙已经断开了，请重新连接！" message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:@"知道了", nil];
  229.                 [alertView show];
  230.                 return;
  231.             }
  232.  
  233.             ChatItem * chatItem = [[ChatItem alloc] init];
  234.             chatItem.isSelf = YES;
  235.             chatItem.states = picStates;
  236.             chatItem.picImage = image;
  237.             [self.datasource addObject:chatItem];
  238.  
  239.             [self insertTheTableToButtom];
  240.  
  241.             [self sendAsResource:filePath];
  242.  
  243.         }];
  244.     }
  245.  
  246. }
  247. - (void)sendAsResource:(NSString *)path
  248. {
  249.  
  250.     NSLog(@"dispaly ====%@",self.sessionManager.firstPeer.displayName);
  251.     NSString * name = [NSString stringWithFormat:@"%@ForPic",[[UIDevice currentDevice] name]];
  252.     NSURL * url = [NSURL fileURLWithPath:path];
  253.  
  254.     NSProgress *progress = [self.sessionManager sendResourceWithName:name atURL:url toPeer:self.sessionManager.firstPeer complete:^(NSError *error) {
  255.         if(!error) {
  256.             NSLog(@"finished sending resource");
  257.         }
  258.         else {
  259.             NSLog(@"%@", error);
  260.         }
  261.     }];
  262.     NSLog(@"%@", @(progress.fractionCompleted));
  263. }
  264.  
  265. #pragma mark 普通数据的传输
  266. - (void)sendWeNeedNews
  267. {
  268.     if(!self.sessionManager.isConnected)
  269.     {
  270.         UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"蓝牙已经断开了，请重新连接！" message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:@"知道了", nil];
  271.         [alertView show];
  272.         return;
  273.     }
  274.     if([self.sendTextView.text isEqualToString:@""])
  275.     {
  276.         return;
  277.     }
  278.  
  279.     ChatItem * chatItem = [[ChatItem alloc] init];
  280.     chatItem.isSelf = YES;
  281.     chatItem.states = textStates;
  282.     chatItem.content = self.sendTextView.text;
  283.     [self.datasource addObject:chatItem];
  284.     // 加到数组里面
  285.  
  286.     // 添加行   indexPath描述位置的具体信息
  287.     [self insertTheTableToButtom];
  288.  
  289.     NSData *data = [NSKeyedArchiver archivedDataWithRootObject:self.sendTextView.text];
  290.     NSError *error = [self.sessionManager sendDataToAllPeers:data];
  291.     if(!error) {
  292.         //there was no error.
  293.     }
  294.     else {
  295.         NSLog(@"%@", error);
  296.     }
  297.  
  298.     [self returnTheNewBack];
  299. }
  300. - (void)returnTheNewBack
  301. {
  302.     // 归零
  303.     self.sendTextView.text = @"";
  304.     [self.sendTextView resignFirstResponder];
  305.     self.tableView.frame = CGRectMake(0, 64, WIDTH, HEIGHT - 64 - ChatHeight - 10 );
  306.     self.sendBackView.frame = CGRectMake(0, HEIGHT - ChatHeight , WIDTH, ChatHeight);
  307.  
  308. }
  309.  
  310. // 这是一种很好的键盘下移方式
  311. -(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
  312. {
  313.  
  314.     if ([text isEqualToString:@"\n"]) {
  315.  
  316.         [self sendWeNeedNews];
  317.  
  318.         return NO;
  319.     }
  320.  
  321.     return YES;
  322. }
  323.  
  324. - (void)textViewDidChange:(UITextView *)textView
  325. {
  326.  
  327.     // 随机改变其高度
  328.  
  329.     float textHeight = [self heightForString:textView.text fontSize:16 andWidth:textView.frame.size.width];
  330.     _sendTextViewHeight = textHeight;
  331. //    NSLog(@"teztheight ===== %f",textHeight);
  332.  
  333.     self.sendTextView.frame = CGRectMake(10, 5, WIDTH - 10 - 90, _sendTextViewHeight);
  334.     self.sendBackView.frame = CGRectMake(0, HEIGHT -  _sendBackViewHeight - _sendTextViewHeight - 10, WIDTH, _sendTextViewHeight + 10);
  335.  
  336. }
  337.  
  338. - (float) heightForString:(NSString *)value fontSize:(float)fontSize andWidth:(float)width
  339. {
  340.     UITextView *detailTextView = [[UITextView alloc]initWithFrame:CGRectMake(0, 0, width, 0)];
  341.     detailTextView.font = [UIFont systemFontOfSize:fontSize];
  342.     detailTextView.text = value;
  343.     CGSize deSize = [detailTextView sizeThatFits:CGSizeMake(width,CGFLOAT_MAX)];
  344.     return deSize.height;
  345. }
  346.  
  347. #pragma mark 以下是为了配合  键盘上移的变化
  348.  
  349. - (void)addTheNoticeForKeyDownUp
  350. {
  351.     [ [NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleKeyBoardDidShow:) name:UIKeyboardDidShowNotification object:nil];
  352.     [ [NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleKeyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
  353. }
  354.  
  355. - (void)dealloc
  356. {
  357.     [[NSNotificationCenter defaultCenter] removeObserver:self];
  358. }
  359.  
  360. -(void)handleKeyBoardDidShow:(NSNotification *)paramNotification
  361. {
  362.     CGSize size = [[paramNotification.userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;
  363.  
  364.     _sendBackViewHeight = size.height;
  365.  
  366.     [UIView animateWithDuration:0.000001 animations:^{
  367.         self.tableView.frame = CGRectMake(0, 64, WIDTH, HEIGHT - 64 - ChatHeight - size.height);
  368.         self.sendBackView.frame = CGRectMake(0, HEIGHT - ChatHeight - size.height, WIDTH, ChatHeight);
  369.  
  370.     }];
  371.  
  372. }
  373. -(void)handleKeyboardWillHide:(NSNotification *)paramNotification
  374. {
  375.     [UIView animateWithDuration:0.1 animations:^{
  376.         if(_sendTextViewHeight > 0)
  377.         {
  378.             self.tableView.frame = CGRectMake(0, 64, WIDTH, HEIGHT - 64 - _sendTextViewHeight + 10 );
  379.             self.sendBackView.frame = CGRectMake(0, HEIGHT - _sendTextViewHeight  - 10, WIDTH, _sendTextViewHeight + 10);
  380.         }
  381.         else
  382.         {
  383.             self.tableView.frame = CGRectMake(0, 64, WIDTH, HEIGHT - 64 - ChatHeight - 10 );
  384.             self.sendBackView.frame = CGRectMake(0, HEIGHT - ChatHeight , WIDTH, ChatHeight);
  385.         }
  386.  
  387.     }];
  388. }
  389. /*--------------------------------------------------------------------------------------------*/
  390. - (void)insertTheTableToButtom
  391. {
  392.     // 哪一组 哪一段
  393.     NSIndexPath * indexPath = [NSIndexPath indexPathForRow:self.datasource.count- 1 inSection:0];
  394.     // 添加新的一行
  395.     [self.tableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
  396.     // 滑动到底部  第二个参数是滑动到底部
  397.     [self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
  398. }
  399.  
  400. #pragma mark tableView 代理
  401. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
  402.     return 1;
  403. }
  404.  
  405. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
  406.     return self.datasource.count;
  407. }
  408.  
  409. -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
  410. {
  411.     ChatItem * chatItem = [self.datasource objectAtIndex:indexPath.row];
  412.     if(chatItem.states == picStates)
  413.     {
  414.         NSLog(@"widht====%f,height======%f",chatItem.picImage.size.width,chatItem.picImage.size.height);
  415.         return 50;
  416.  
  417.     }
  418.     else if(chatItem.states == textStates)
  419.     {
  420.         CGSize size = [chatItem.content boundingRectWithSize:CGSizeMake(250, 1000) options:NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading  attributes:@{NSFontAttributeName :[UIFont systemFontOfSize:14]} context:nil].size;
  421.  
  422.         return size.height + 20 + 10; // 与view的距离 ＋ 与Cell的距离
  423.     }
  424.     else
  425.     {
  426.         return 50;
  427.     }
  428.  
  429. }
  430.  
  431. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
  432. {
  433.  
  434.     static NSString * iden = @"iden";
  435.     ChatCell * cell = [tableView dequeueReusableCellWithIdentifier:iden];
  436.     if(cell == nil)
  437.     {
  438.         cell = [[ChatCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:iden];
  439.         cell.selectionStyle = UITableViewCellSelectionStyleNone;
  440.         // 让后面选中的没有阴影效果
  441.  
  442.     }
  443.  
  444.     // 模型
  445.  
  446.     ChatItem * chatItem = [self.datasource objectAtIndex:indexPath.row];
  447.  
  448.     CGSize size = [chatItem.content boundingRectWithSize:CGSizeMake(250, 1000) options:NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading  attributes:@{NSFontAttributeName :[UIFont systemFontOfSize:14]} context:nil].size;
  449.  
  450.     //如果自己发的
  451.     if(chatItem.isSelf)
  452.     {
  453.         cell.leftHeadImage.hidden = YES;
  454.         cell.rightHeadImage.hidden = NO;
  455.  
  456.         if(chatItem.states == picStates)
  457.         {
  458.             cell.lefeView.hidden = YES;
  459.             cell.rightView.hidden = YES;
  460.  
  461.             cell.rightPicImage.image = chatItem.picImage;
  462.             cell.leftPicImage.hidden = YES;
  463.             cell.rightPicImage.hidden = NO;
  464.  
  465.             cell.leftVideoButton.hidden = YES;
  466.             cell.rightVideoButton.hidden = YES;
  467.  
  468.             NSLog(@"self send");
  469.  
  470.         }
  471.         else if(chatItem.states == textStates)
  472.         {
  473.             cell.rightPicImage.hidden = YES;
  474.             cell.leftPicImage.hidden = YES;
  475.  
  476.             cell.lefeView.hidden = YES;
  477.             cell.rightView.hidden = NO;
  478.  
  479.             cell.leftVideoButton.hidden = YES;
  480.             cell.rightVideoButton.hidden = YES;
  481.             // 复用机制
  482.             cell.rightLabel.frame = CGRectMake(10, 5, size.width, size.height);
  483.             cell.rightView.frame = CGRectMake(WIDTH - 40 -size.width-25, 5, size.width + 25, size.height + 18);
  484.             cell.rightLabel.text = chatItem.content;
  485.         }
  486.         else
  487.         {
  488.             cell.rightView.hidden = YES;
  489.             cell.lefeView.hidden = YES;
  490.             cell.rightView.hidden = YES;
  491.             cell.lefeView.hidden = YES;
  492.  
  493.             cell.leftVideoButton.hidden = YES;
  494.             cell.rightVideoButton.hidden = NO;
  495.  
  496.             cell.rightVideoButton.tag = 300 + indexPath.row;
  497.             [cell.rightVideoButton addTarget:self action:@selector(cellSelectIndex:) forControlEvents:UIControlEventTouchUpInside];
  498.             [cell.rightVideoButton setImage:[UIImage imageNamed:@"record.png"] forState:UIControlStateNormal];
  499.  
  500.         }
  501.  
  502.     }
  503.     else  // 接受得到
  504.     {
  505.         cell.leftHeadImage.hidden = NO;
  506.         cell.rightHeadImage.hidden = YES;
  507.  
  508.         if(chatItem.states == picStates)
  509.         {
  510.             cell.rightView.hidden = YES;
  511.             cell.lefeView.hidden = YES;
  512.  
  513.             cell.leftVideoButton.hidden = YES;
  514.             cell.rightVideoButton.hidden = YES;
  515.  
  516.             cell.leftPicImage.image = chatItem.picImage;
  517.             cell.rightPicImage.hidden = YES;
  518.             cell.leftPicImage.hidden = NO;
  519.  
  520.         }
  521.         else if(chatItem.states == textStates)
  522.         {
  523.             cell.rightPicImage.hidden = YES;
  524.             cell.leftPicImage.hidden = YES;
  525.  
  526.             cell.rightView.hidden = YES;
  527.             cell.lefeView.hidden = NO;
  528.  
  529.             cell.leftVideoButton.hidden = YES;
  530.             cell.rightVideoButton.hidden = YES;
  531.  
  532.             cell.leftLabel.frame = CGRectMake(15, 5, size.width, size.height);
  533.  
  534.             cell.lefeView.frame = CGRectMake(40, 5, size.width +30, size.height + 25);
  535.  
  536.             cell.leftLabel.text = chatItem.content;
  537.         }
  538.         else
  539.         {
  540.             cell.rightView.hidden = YES;
  541.             cell.lefeView.hidden = YES;
  542.             cell.rightView.hidden = YES;
  543.             cell.lefeView.hidden = YES;
  544.  
  545.             cell.leftVideoButton.hidden = NO;
  546.             cell.rightVideoButton.hidden = YES;
  547.  
  548.             cell.leftVideoButton.tag = 300 + indexPath.row;
  549.             [cell.leftVideoButton setImage:[UIImage imageNamed:@"record.png"] forState:UIControlStateNormal];
  550.             [cell.leftVideoButton addTarget:self action:@selector(cellSelectIndex:) forControlEvents:UIControlEventTouchUpInside];
  551.         }
  552.  
  553.     }
  554.  
  555.     return cell;
  556. }
  557.  
  558. - (void)cellSelectIndex:(UIButton *)cellBtn
  559. {
  560.  
  561.     ChatItem *chatIden = [self.datasource objectAtIndex:cellBtn.tag - 300];
  562.     if(chatIden.states == videoStates)
  563.     {
  564.         NSLog(@"realy play");
  565. //        [self makeVideoPlayer:[self getVideoStremData]];
  566.         [self makeVideoPlayer:chatIden.recordData];
  567.     }
  568. }
  569.  
  570. #pragma mark 下面是核心的连接MCSession 和  数据返回的地方
  571.  
  572. /***************************-------**********************************************/
  573. - (void)makeBlueData
  574. {
  575.       // 这是为了让 在block中弱引用
  576.     __weak typeof (self) weakSelf = self;
  577.     self.datasource = [NSMutableArray arrayWithCapacity:0];
  578.  
  579.     // 初始化  会议室
  580.     self.sessionManager = [[BlueSessionManager alloc]initWithDisplayName:[NSString stringWithFormat:@" %@",  [[UIDevice currentDevice] name]]];
  581.  
  582.     //
  583.     [self.sessionManager didReceiveInvitationFromPeer:^void(MCPeerID *peer, NSData *context) {
  584.         __strong typeof (weakSelf) strongSelf = weakSelf;
  585.         UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"是否连接？" message:[NSString stringWithFormat:@"同 %@%@", peer.displayName, @" 连接?"] delegate:strongSelf cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
  586.         [alertView show];
  587.     }];
  588.  
  589.     [self.sessionManager peerConnectionStatusOnMainQueue:YES block:^(MCPeerID *peer, MCSessionState state) {
  590.         if(state == MCSessionStateConnected) {
  591.             UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"已经连接" message:[NSString stringWithFormat:@"现在连接 %@了！", peer.displayName] delegate:nil cancelButtonTitle:nil otherButtonTitles:@"知道了", nil];
  592.             [alertView show];
  593.         }
  594.     }];
  595.  
  596.     // 发正常数据的返回
  597.     [self.sessionManager receiveDataOnMainQueue:YES block:^(NSData *data, MCPeerID *peer) {
  598.  
  599.         __strong typeof (weakSelf) strongSelf = weakSelf;
  600.  
  601.         NSString *string = [NSKeyedUnarchiver unarchiveObjectWithData:data];
  602.  
  603.         ChatItem * chatItem = [[ChatItem alloc] init];
  604.         chatItem.isSelf = NO;
  605.         chatItem.states = textStates;
  606.         chatItem.content = string;
  607.         [strongSelf.datasource addObject:chatItem];
  608.         // 加到数组里面
  609.  
  610.         [strongSelf insertTheTableToButtom];
  611.  
  612.     }];
  613.  
  614.     // 发图片之后的返回
  615.     [self.sessionManager receiveFinalResourceOnMainQueue:YES complete:^(NSString *name, MCPeerID *peer, NSURL *url, NSError *error) {
  616.  
  617.         __strong typeof (weakSelf) strongSelf = weakSelf;
  618.         NSData *data = [NSData dataWithContentsOfURL:url];
  619.  
  620.         ChatItem * chatItem = [[ChatItem alloc] init];
  621.         chatItem.isSelf = NO;
  622.         chatItem.states = picStates;
  623.         chatItem.content = name;
  624.         chatItem.picImage = [UIImage imageWithData:data];
  625.         [strongSelf.datasource addObject:chatItem];
  626.         [strongSelf insertTheTableToButtom];
  627.  
  628.     }];
  629.  
  630.     // 流
  631.     [self.sessionManager didReceiveStreamFromPeer:^(NSInputStream *stream, MCPeerID *peer, NSString *streamName) {
  632.         __strong typeof (weakSelf) strongSelf = weakSelf;
  633.         strongSelf.inputStream = stream;
  634.         strongSelf.inputStream.delegate = self;
  635.         [strongSelf.inputStream scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
  636.         [strongSelf.inputStream open];
  637.  
  638.         NSLog(@"we need");
  639.  
  640.     }];
  641.  
  642. }
  643. - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
  644. {
  645.     [self.sessionManager connectToPeer:buttonIndex == 1];
  646. }
  647.  
  648. #pragma mark 下面是流的传输
  649.  
  650. /***********--------------------- 下面是流的传输 ------------------------***********************************/
  651.  
  652. - (void)videoRecord
  653. {
  654.     // 播放录音
  655.     [self SetTempRecordView];
  656. }
  657.  
  658. - (void)sendAsStream
  659. {
  660.     if(!self.sessionManager.isConnected)
  661.     {
  662.         UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"蓝牙已经断开了，请重新连接！" message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:@"知道了", nil];
  663.         [alertView show];
  664.         return;
  665.     }
  666.  
  667.     NSError *err;
  668.     self.outputStream = [self.sessionManager streamWithName:@"super stream" toPeer:self.sessionManager.firstPeer error:&err];
  669.     self.outputStream.delegate = self;
  670.     [self.outputStream scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
  671.     if(err || !self.outputStream) {
  672.         NSLog(@"%@", err);
  673.     }
  674.     else
  675.     {
  676.  
  677.         [self.outputStream open];
  678.     }
  679. }
  680.  
  681. // 下面是一个代理
  682. - (void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode
  683. {
  684.  
  685.     if(eventCode == NSStreamEventHasBytesAvailable)
  686.     {
  687.          // 有可读的字节，接收到了数据
  688.         NSInputStream *input = (NSInputStream *)aStream;
  689.         uint8_t buffer[1024];
  690.         NSInteger length = [input read:buffer maxLength:1024];
  691.         [self.streamData appendBytes:(const void *)buffer length:(NSUInteger)length];
  692.        // 记住这边的数据陆陆续续的
  693.     }
  694.     else if(eventCode == NSStreamEventHasSpaceAvailable)
  695.     {
  696.         // 可以使用输出流的空间，此时可以发送数据给服务器
  697.         // 发送数据的
  698.         NSData *data = [self getVideoStremData];
  699.         ChatItem * chatItem = [[ChatItem alloc] init];
  700.         chatItem.isSelf = YES;
  701.         chatItem.states = videoStates;
  702.         chatItem.recordData = data;
  703.  
  704.         [self.datasource addObject:chatItem];
  705.         [self insertTheTableToButtom];
  706.  
  707.         NSOutputStream *output = (NSOutputStream *)aStream;
  708.         [output write:data.bytes maxLength:data.length];
  709.         [output close];
  710.     }
  711.     if(eventCode == NSStreamEventEndEncountered)
  712.     {
  713.         // 流结束事件，在此事件中负责做销毁工作
  714.         // 同时也是获得最终数据的好地方
  715.  
  716.         ChatItem * chatItem = [[ChatItem alloc] init];
  717.         chatItem.isSelf = NO;
  718.         chatItem.states = videoStates;
  719.         chatItem.recordData = self.streamData;
  720.  
  721.         [self.datasource addObject:chatItem];
  722.         [self insertTheTableToButtom];
  723.  
  724.         [aStream close];
  725.         [aStream removeFromRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
  726.         if([aStream isKindOfClass:[NSInputStream class]])
  727.         {
  728.             self.streamData = nil;
  729.         }
  730.  
  731.     }
  732.     if(eventCode == NSStreamEventErrorOccurred)
  733.     {
  734.         // 发生错误
  735.         NSLog(@"error");
  736.     }
  737. }
  738.  
  739. - (NSMutableData *)streamData
  740. {
  741.     if(!_streamData) {
  742.         _streamData = [NSMutableData data];
  743.     }
  744.     return _streamData;
  745. }
  746.  
  747. /***********-----------------------  公用的数据 --------------------***********************************/
  748.  
  749. - (NSData *)imageData
  750. {
  751.     return [NSData dataWithContentsOfURL:[self imageURL]];
  752. }
  753.  
  754. - (NSURL *)imageURL {
  755.     NSString *path = [[NSBundle mainBundle]pathForResource:@"301-alien-ship@2x" ofType:@"png"];
  756.     // 这儿有个技术点
  757.     // 那个如何将 image转化成 路径
  758.  
  759.     NSURL *url = [NSURL fileURLWithPath:path];
  760.     return url;
  761. }
  762.  
  763. /***********----------------------------------------------***********************************/
  764. #pragma mark 尝试空白处的连接
  765.  
  766. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  767. {
  768.     UITouch * touch = [[event allTouches] anyObject];
  769.     if(touch.tapCount >= 1)
  770.     {
  771.         [self.sendTextView resignFirstResponder];
  772.     }
  773. }
  774.  
  775. /***********-------------------语音---------------------------***********************************/
  776.  
  777. #pragma mark 尝试语音的录制和播出
  778.  
  779. - (void)buildVideoForWe
  780. {
  781.     // 设置录音会话
  782.     [self setAudioSession];
  783. }
  784.  
  785. - (void)SetTempRecordView
  786. {
  787.     _backRemindRecordView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, 150)];
  788.     _backRemindRecordView.center = self.view.center;
  789.     _backRemindRecordView.backgroundColor = [UIColor lightGrayColor];
  790.     [self.view addSubview:_backRemindRecordView];
  791.  
  792.     UILabel * beginLabel = [[UILabel alloc] initWithFrame:CGRectMake(60, 50, WIDTH -120, 50)];
  793.     beginLabel.backgroundColor = [UIColor greenColor];
  794.     beginLabel.text = @"长按录音开始···";
  795.     beginLabel.tag = 1001;
  796.     beginLabel.textAlignment = NSTextAlignmentCenter;
  797.     beginLabel.userInteractionEnabled = YES;
  798.     [_backRemindRecordView addSubview:beginLabel];
  799.  
  800.     UILongPressGestureRecognizer * longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressNextDo:)];
  801.     [beginLabel addGestureRecognizer:longPress];
  802.  
  803. }
  804.  
  805. - (void)longPressNextDo:(UILongPressGestureRecognizer * )longPress
  806. {
  807.     if(longPress.state == UIGestureRecognizerStateBegan)
  808.     {
  809.         NSLog(@"begin");
  810.         UILabel * label = (UILabel *)[_backRemindRecordView viewWithTag:1001];
  811.         label.text = @"录音正在进行中···";
  812.         label.backgroundColor = [UIColor orangeColor];
  813.         [self BeginRecordClick];
  814.     }
  815.     if(longPress.state == UIGestureRecognizerStateEnded)
  816.     {
  817.         [self OkStopClick];
  818.         [_backRemindRecordView removeFromSuperview];
  819.         [self  sendAsStream];
  820.         NSLog(@"stop");
  821.  
  822.     }
  823. }
  824.  
  825. #pragma mark - 私有方法
  826. /**
  827.  *  设置音频会话
  828.  */
  829. -(void)setAudioSession
  830. {
  831.     AVAudioSession *audioSession=[AVAudioSession sharedInstance];
  832.     //设置为播放和录音状态，以便可以在录制完之后播放录音
  833.     [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
  834.     [audioSession setActive:YES error:nil];
  835. }
  836.  
  837. /**
  838.  *  取得录音文件保存路径
  839.  *
  840.  *  @return 录音文件路径
  841.  */
  842. -(NSURL *)getSavePath
  843. {
  844.     NSString *urlStr=[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
  845.     urlStr=[urlStr stringByAppendingPathComponent:kRecordAudioFile];
  846.     NSLog(@"file path:%@",urlStr);
  847.     NSURL *url=[NSURL fileURLWithPath:urlStr];
  848.     return url;
  849. }
  850.  
  851. - (NSData *)getVideoStremData
  852. {
  853.     return [NSData dataWithContentsOfURL:[self getSavePath]];
  854. }
  855.  
  856. /**
  857.  *  取得录音文件设置
  858.  *
  859.  *  @return 录音设置
  860.  */
  861. -(NSDictionary *)getAudioSetting{
  862.     NSMutableDictionary *dicM=[NSMutableDictionary dictionary];
  863.     //设置录音格式
  864.     [dicM setObject:@(kAudioFormatLinearPCM) forKey:AVFormatIDKey];
  865.     //设置录音采样率，8000是电话采样率，对于一般录音已经够了
  866.     [dicM setObject:@(8000) forKey:AVSampleRateKey];
  867.     //设置通道,这里采用单声道
  868.     [dicM setObject:@(1) forKey:AVNumberOfChannelsKey];
  869.     //每个采样点位数,分为8、16、24、32
  870.     [dicM setObject:@(8) forKey:AVLinearPCMBitDepthKey];
  871.     //是否使用浮点数采样
  872.     [dicM setObject:@(YES) forKey:AVLinearPCMIsFloatKey];
  873.     //....其他设置等
  874.     return dicM;
  875. }
  876.  
  877. /**
  878.  *  获得录音机对象
  879.  *
  880.  *  @return 录音机对象
  881.  */
  882. -(AVAudioRecorder *)audioRecorder
  883. {
  884.     if (!_audioRecorder) {
  885.         //创建录音文件保存路径
  886.         NSURL *url=[self getSavePath];
  887.         //创建录音格式设置
  888.         NSDictionary *setting=[self getAudioSetting];
  889.         //创建录音机
  890.         NSError *error=nil;
  891.         _audioRecorder=[[AVAudioRecorder alloc]initWithURL:url settings:setting error:&error];
  892.         _audioRecorder.delegate=self;
  893.         _audioRecorder.meteringEnabled=YES;//如果要监控声波则必须设置为YES
  894.         if (error) {
  895.             NSLog(@"创建录音机对象时发生错误，错误信息：%@",error.localizedDescription);
  896.             return nil;
  897.         }
  898.     }
  899.     return _audioRecorder;
  900. }
  901.  
  902. /**
  903.  *  创建播放器
  904.  *
  905.  *  @return 播放器
  906.  */
  907.  
  908. - (void)makeVideoPlayer:(NSData *)data
  909. {
  910.     NSError *error=nil;
  911.     self.audioPlayer=[[AVAudioPlayer alloc]initWithData:data error:&error];
  912.     self.audioPlayer.delegate = self;
  913.     self.audioPlayer.numberOfLoops=0;
  914.     [self.audioPlayer prepareToPlay];
  915.     if (error)
  916.     {
  917.         NSLog(@"创建播放器过程中发生错误，错误信息：%@",error.localizedDescription);
  918.  
  919.     }
  920.     else
  921.     {
  922.         if (![self.audioPlayer isPlaying]) {
  923.             NSLog(@"play");
  924.                 [self.audioPlayer play];
  925.         }
  926.  
  927.     }
  928. }
  929.  
  930. /**
  931.  *  录音声波监控定制器
  932.  *
  933.  *  @return 定时器
  934.  */
  935. -(NSTimer *)timer{
  936.     if (!_timer) {
  937.         _timer=[NSTimer scheduledTimerWithTimeInterval:0.1f target:self selector:@selector(audioPowerChange) userInfo:nil repeats:YES];
  938.     }
  939.     return _timer;
  940. }
  941.  
  942. /**
  943.  *  录音声波状态设置
  944.  */
  945. -(void)audioPowerChange{
  946.     [self.audioRecorder updateMeters];//更新测量值
  947.     float power= [self.audioRecorder averagePowerForChannel:0];//取得第一个通道的音频，注意音频强度范围时-160到0
  948.     CGFloat progress=(1.0/160.0)*(power+160.0);
  949.     [self.audioPower setProgress:progress];
  950. }
  951. #pragma mark - UI事件
  952. /**
  953.  *  点击录音按钮
  954.  *
  955.  *  @param sender 录音按钮
  956.  */
  957. - (void)BeginRecordClick
  958. {
  959.     if (![self.audioRecorder isRecording])
  960.     {
  961.         [self.audioRecorder record];//首次使用应用时如果调用record方法会询问用户是否允许使用麦克风
  962.         self.timer.fireDate=[NSDate distantPast];
  963.     }
  964. }
  965.  
  966. /**
  967.  *  点击暂定按钮
  968.  *
  969.  *  @param sender 暂停按钮
  970.  */
  971. - (void)StopPauseClick
  972. {
  973.     if ([self.audioRecorder isRecording]) {
  974.         [self.audioRecorder pause];
  975.         self.timer.fireDate=[NSDate distantFuture];
  976.     }
  977. }
  978.  
  979. /**
  980.  *  点击停止按钮
  981.  *
  982.  *  @param sender 停止按钮
  983.  */
  984. - (void)OkStopClick
  985. {
  986.     [self.audioRecorder stop];
  987.     self.timer.fireDate=[NSDate distantFuture];
  988.     self.audioPower.progress=0.0;
  989. }
  990.  
  991. #pragma mark - 录音机代理方法
  992. /**
  993.  *  录音完成，录音完成后播放录音
  994.  *
  995.  *  @param recorder 录音机对象
  996.  *  @param flag     是否成功
  997.  */
  998. -(void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag
  999. {
  1000. //    if (![self.audioPlayer isPlaying]) {
  1001. //        [self.audioPlayer play];
  1002. //    }
  1003.     NSLog(@"录音完成!");
  1004. }
  1005.  
  1006. - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
  1007. {
  1008.  
  1009.     // 每次完成后都将这个对象释放
  1010.     player =nil;
  1011. }

建一个model类:

  1. .h
  2. #import <UIKit/UIKit.h>
  3. //@protocol CellSelectIndex <NSObject>
  4. //
  5. //- (void)cellSelectIndex;
  6. //
  7. //@end
  8.  
  9. @interface ChatCell : UITableViewCell
  10. @property(nonatomic,strong)UIImageView * lefeView;
  11. @property(nonatomic,strong)UIImageView * rightView;
  12. @property(nonatomic,strong)UILabel * leftLabel;
  13. @property(nonatomic,strong)UILabel * rightLabel;
  14.  
  15. @property(nonatomic,strong)UIImageView * leftHeadImage;
  16. @property(nonatomic,strong)UIImageView * rightHeadImage;
  17.  
  18. @property(nonatomic,strong)UIImageView * leftPicImage;
  19. @property(nonatomic,strong)UIImageView * rightPicImage;
  20.  
  21. @property(nonatomic ,strong)UIButton * leftVideoButton;
  22. @property(nonatomic, strong)UIButton * rightVideoButton;
  23.  
  24. //@property(nonatomic,weak)id <CellSelectIndex> delegate;
  25.  
  26. // 不能用名字相同的属性
  27. //  记住自动的时候，讲一下 weak  and strong 
  28.  
  29. @end
  30.  
  31. .m
  32. #import "ChatCell.h"
  33.  
  34. @implementation ChatCell
  35.  
  36. - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
  37. {
  38.     self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
  39.     if (self) {
  40.         // Initialization code
  41.         [self makeView];
  42.     }
  43.     return self;
  44. }
  45. -(void)makeView
  46. {
  47.     UIImage * leftImgae = [UIImage imageNamed:@"ReceiverTextNodeBkg.png"];
  48.     UIImage * rightImage = [UIImage imageNamed:@"SenderTextNodeBkg.png"];
  49.  
  50.     //这里设定一行一像素 当图片拉伸的时候，只放大两个像素
  51.  
  52.     leftImgae = [leftImgae stretchableImageWithLeftCapWidth:30 topCapHeight:35];
  53.     // 找一行一列的像素
  54.     rightImage = [rightImage stretchableImageWithLeftCapWidth:30 topCapHeight:35];
  55.     // 设定完了后生成了一个新的image;
  56.  
  57. //----------------------------------------------------------------------------------------//
  58.     // 左边头像
  59.     self.leftHeadImage = [[UIImageView alloc] initWithFrame:CGRectMake(5, 5, 30, 30)];
  60.     self.leftHeadImage.layer.masksToBounds = YES;
  61.     self.leftHeadImage.layer.cornerRadius = 12;
  62.     self.leftHeadImage.image = [UIImage imageNamed:@"f-pCert.png"];
  63.     [self.contentView addSubview:self.leftHeadImage];
  64.  
  65.     //左边气泡
  66.     self.leftVideoButton = [UIButton buttonWithType:UIButtonTypeCustom];
  67.     self.leftVideoButton.frame = CGRectMake(40, 5, 35, 35);
  68. //    [self.leftVideoButton addTarget:self action:@selector(recordTheVoice) forControlEvents:UIControlEventTouchUpInside];
  69.     [self.contentView addSubview:self.leftVideoButton];
  70.  
  71.     self.leftPicImage = [[UIImageView alloc] initWithFrame:CGRectMake(40, 5, 66, 30)];
  72.     [self.contentView addSubview:self.leftPicImage];
  73.  
  74.     self.lefeView = [[UIImageView alloc] initWithFrame:CGRectMake(40, 5, 66, 30)];
  75.     self.lefeView.image = leftImgae;
  76.     // 这里不是一个小像素的图片？？
  77.     [self.contentView addSubview:self.lefeView];
  78.  
  79.     self.leftLabel = [[UILabel alloc] initWithFrame:CGRectMake(15, 5, 1, 1)];
  80.     self.leftLabel.font = [UIFont systemFontOfSize:14];
  81.  
  82.     self.leftLabel.numberOfLines = 0; // 换行
  83.  
  84.     self.leftLabel.backgroundColor = [UIColor clearColor];// 设置透明的
  85.  
  86.     [self.lefeView addSubview:self.leftLabel];
  87.  
  88. //----------------------------------------------------------------------------------------//
  89.  
  90.     self.rightHeadImage = [[UIImageView alloc] initWithFrame:CGRectMake(self.frame.size.width - 35, 5, 30, 30)];
  91.     self.rightHeadImage.layer.masksToBounds = YES;
  92.     self.rightHeadImage.layer.cornerRadius = 12;
  93.     self.rightHeadImage.image = [UIImage imageNamed:@"f-plove.png"];
  94.     [self.contentView addSubview:self.rightHeadImage];
  95.  
  96.     self.rightVideoButton = [UIButton buttonWithType:UIButtonTypeCustom];
  97.     self.rightVideoButton.frame = CGRectMake(self.frame.size.width - 45 - 40, 5, 35, 35);
  98. //    [self.rightVideoButton addTarget:self action:@selector(recordTheVoice) forControlEvents:UIControlEventTouchUpInside];
  99.     [self.contentView addSubview:self.rightVideoButton];
  100.  
  101.     self.rightPicImage = [[UIImageView alloc] initWithFrame:CGRectMake(self.frame.size.width - 45 - 30, 5, 30, 30)];
  102.     [self.contentView addSubview:self.rightPicImage];
  103.  
  104.     // 右边
  105.     self.rightView = [[UIImageView alloc] initWithFrame:CGRectMake(self.frame.size.width - (66+40), 5, 66, 30)];
  106.     self.rightView.image = rightImage;
  107.     [self.contentView addSubview:self.rightView];
  108.  
  109.     self.rightLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 5, 1, 1)];
  110.     self.rightLabel.font = [UIFont systemFontOfSize:14];
  111.     self.rightLabel.backgroundColor = [UIColor clearColor];
  112.     self.rightLabel.numberOfLines = 0;
  113.     [self.rightView addSubview:self.rightLabel];
  114.  
  115. }
  116.  
  117. //- (void)recordTheVoice
  118. //{
  119. //    [self.delegate cellSelectIndex];
  120. //}

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基本知识必须了解的

MCAdvertiserAssistant   //可以接收，并处理用户请求连接的响应。没有回调，会弹出默认的提示框，并处理连接。

MCNearbyServiceAdvertiser //可以接收，并处理用户请求连接的响应。但是，这个类会有回调，告知有用户要与您的设备连接，然后可以自定义提示框，以及自定义连接处理。

MCNearbyServiceBrowser  //用于搜索附近的用户，并可以对搜索到的用户发出邀请加入某个会话中。

MCPeerID //这表明是一个用户

MCSession //启用和管理Multipeer连接会话中的所有人之间的沟通。 通过Sesion，给别人发送数据。

建一个类用来写所有方法:

  1. .h
  2. #import <Foundation/Foundation.h>
  3.  
  4. @import MultipeerConnectivity;
  5.  
  6. @interface BlueSessionManager : NSObject
  7.  
  8. @property(strong, nonatomic, readonly) NSArray *connectedPeers;
  9.  
  10. @property(strong, nonatomic, readonly) MCSession *session;
  11.  
  12. @property(nonatomic, readonly, getter = isConnected) BOOL connected;
  13.  
  14. @property(strong, nonatomic) NSDictionary *discoveryInfo; // 发现设备的特征
  15.  
  16. @property(strong, nonatomic, readonly) MCPeerID *firstPeer; // 第一个连接的 用户
  17.  
  18. /**
  19.  * The service type provided for browsing and advertising.
  20.  * This should be a short text string that describes the
  21.  * app's networking protocol. Should be something
  22.  * in the form of `tjl_appname`.
  23.  */
  24. @property(strong, nonatomic) NSString *serviceType;
  25.  
  26. /*
  27.  初始化一个 假设的用户名字
  28.  */
  29. - (instancetype)__attribute__((nonnull(1)))initWithDisplayName:(NSString *)displayName;
  30.  
  31. - (void)browseForProgrammaticDiscovery;
  32.  
  33. - (void)advertiseForBrowserViewController;
  34.  
  35. - (void)advertiseForProgrammaticDiscovery;
  36.  
  37. - (void)didReceiveInvitationFromPeer:(void (^)(MCPeerID *peer, NSData *context))invite;
  38.  
  39. - (NSError *)sendDataToAllPeers:(NSData *)data;
  40. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers;
  41.  
  42. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers withMode:(MCSessionSendDataMode)mode;
  43.  
  44. - (void)receiveDataOnMainQueue:(BOOL)mainQueue block:(void (^)(NSData *data, MCPeerID *peer))dataBlock;
  45.  
  46. - (NSProgress *)sendResourceWithName:(NSString *)name atURL:(NSURL *)url toPeer:(MCPeerID *)peer complete:(void (^)(NSError *error))compelete;
  47.  
  48. - (void)receiveFinalResourceOnMainQueue:(BOOL)mainQueue complete:(void (^)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error))block;
  49.  
  50. - (void)startReceivingResourceOnMainQueue:(BOOL)mainQueue block:(void (^)(NSString *name, MCPeerID *peer, NSProgress *progress))block;
  51.  
  52. - (NSOutputStream *)streamWithName:(NSString *)name toPeer:(MCPeerID *)peerID error:(NSError * __autoreleasing *)error;
  53.  
  54. - (void)didReceiveStreamFromPeer:(void (^)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName))streamBlock;
  55.  
  56. - (void)peerConnectionStatusOnMainQueue:(BOOL)mainQueue block:(void (^)(MCPeerID *peer, MCSessionState state))status;
  57.  
  58. - (void)browseWithControllerInViewController:(UIViewController *)controller connected:(void (^)(void))connected canceled:(void (^)(void))cancelled;
  59.  
  60. - (void)didFindPeerWithInfo:(void (^)(MCPeerID *peer, NSDictionary *info))found;
  61. - (void)connectToPeer:(BOOL)connect;
  62.  
  63. // 邀请其他设备连接
  64. - (void)invitePeerToConnect:(MCPeerID *)peer connected:(void (^)(void))connected;
  65. - (void)disconnectSession;
  66. // 停止打开自己
  67. - (void)stopAdvertising;
  68.  
  69. // 停止扫描
  70. - (void)stopBrowsing;
  71.  
  72. @end
  73.  
  74. .m
  75. #import "BlueSessionManager.h"
  76.  
  77. #define ServiceType @"MyService"
  78.  
  79. /*
  80.  MCAdvertiserAssistant   //可以接收，并处理用户请求连接的响应。没有回调，会弹出默认的提示框，并处理连接。
  81.  MCNearbyServiceAdvertiser //可以接收，并处理用户请求连接的响应。但是，这个类会有回调，告知有用户要与您的设备连接，然后可以自定义提示框，以及自定义连接处理。
  82.  MCNearbyServiceBrowser  //用于搜索附近的用户，并可以对搜索到的用户发出邀请加入某个会话中。
  83.  MCPeerID //这表明是一个用户
  84.  MCSession //启用和管理Multipeer连接会话中的所有人之间的沟通。 通过Sesion，给别人发送数据。
  85.  */
  86. @interface BlueSessionManager ()<MCAdvertiserAssistantDelegate, MCNearbyServiceBrowserDelegate, MCSessionDelegate, MCBrowserViewControllerDelegate, MCNearbyServiceAdvertiserDelegate, UIAlertViewDelegate>
  87. @property(strong, nonatomic) MCSession *currentSession; // 当前会议
  88. @property(strong, nonatomic) MCAdvertiserAssistant *advertisingAssistant; // 宣传助手
  89. @property(strong, nonatomic) MCNearbyServiceAdvertiser *advertiser; // 服务助手
  90. @property(strong, nonatomic) MCNearbyServiceBrowser *browser; // 搜索蓝牙者
  91. @property(strong, nonatomic) MCPeerID *peerID; // 用户
  92.  
  93. //  以下都是用到的block
  94. @property(nonatomic, copy) void(^receiveDataBlock)(NSData *data, MCPeerID *peer);
  95. @property(nonatomic, copy) void(^receiveResourceBlock)(MCPeerID *peer, NSURL *url);
  96. @property(nonatomic, copy) void(^connectionStatus)(MCPeerID *peer, MCSessionState state);
  97. @property(nonatomic, copy) void(^browserConnected)(void);
  98. @property(nonatomic, copy) void(^browserCancelled)(void);
  99. @property(nonatomic, copy) void(^didFindPeer)(MCPeerID *peer, NSDictionary *info);
  100. @property(nonatomic, copy) void(^invitationHandler)(BOOL connect, MCSession *session);
  101. @property(nonatomic, copy) void(^inviteBlock)(MCPeerID *peer, NSData *context);
  102. @property(nonatomic, copy) void(^didStartReceivingResource)(NSString *name, MCPeerID *peer, NSProgress *progress);
  103. @property(nonatomic, copy) void(^finalResource)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error);
  104. @property(nonatomic, copy) void(^streamBlock)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName);
  105. // 各种判断
  106. @property(nonatomic, assign) BOOL receiveOnMainQueue;
  107. @property(nonatomic, assign) BOOL statusOnMainQueue;
  108. @property(nonatomic, assign) BOOL resourceFinalOnMainQueue;
  109. @property(nonatomic, assign) BOOL resourceStart;
  110. @end
  111. @implementation BlueSessionManager
  112. #pragma mark 初始化自己
  113. - (instancetype)initWithDisplayName:(NSString *)displayName
  114. {
  115.     return [self initWithDisplayName:displayName securityIdentity:nil encryptionPreferences:MCEncryptionNone serviceType:ServiceType];
  116. }
  117. // 为上面自定义 用户
  118. - (instancetype)initWithDisplayName:(NSString *)displayName securityIdentity:(NSArray *)security encryptionPreferences:(MCEncryptionPreference)preference serviceType:(NSString *)type
  119. {
  120.     self = [super init];
  121.     if(!self) {
  122.         return nil;
  123.     }
  124.     self.peerID = [[MCPeerID alloc]initWithDisplayName:displayName];
  125.     self.currentSession = [[MCSession alloc]initWithPeer:self.peerID securityIdentity:security encryptionPreference:preference];
  126.     self.session.delegate = self;
  127.     self.serviceType = type;
  128.     return self;
  129. }
  130. #pragma mark 宣传自己
  131. - (void)advertiseForBrowserViewController
  132. {
  133.     [self advertiseForBrowserViewControllerWithDiscoveryInfo:nil];
  134. }
  135.  
  136. - (void)advertiseForBrowserViewControllerWithDiscoveryInfo:(NSDictionary *)info
  137. {
  138.     //
  139.     self.advertiser = [[MCNearbyServiceAdvertiser alloc]initWithPeer:self.peerID discoveryInfo:info serviceType:self.serviceType];
  140.     self.advertiser.delegate = self;
  141.     [self.advertiser startAdvertisingPeer];
  142. }
  143.  
  144. - (void)advertiseForProgrammaticDiscovery
  145. {
  146.     [self advertiseForProgrammaticDiscoveryWithDiscoveryInfo:nil];
  147. }
  148.  
  149. - (void)advertiseForProgrammaticDiscoveryWithDiscoveryInfo:(NSDictionary *)info
  150. {
  151.     //自定义自己，为了让其他设备搜索到自己
  152.     self.advertisingAssistant = [[MCAdvertiserAssistant alloc]initWithServiceType:self.serviceType discoveryInfo:info session:self.session];
  153.     self.advertisingAssistant.delegate = self;
  154.     [self.advertisingAssistant start];
  155. }
  156.  
  157. - (void)advertiser:(MCNearbyServiceAdvertiser *)advertiser didReceiveInvitationFromPeer:(MCPeerID *)peerID withContext:(NSData *)context invitationHandler:(void (^)(BOOL, MCSession *))invitationHandler {
  158.     self.invitationHandler = [invitationHandler copy];
  159.     if(self.inviteBlock) self.inviteBlock(peerID, context);
  160. }
  161.  
  162. #pragma mark 下面是MCAdvertiserAssistant的两个代理
  163. - (void)advertiserAssistantDidDismissInvitation:(MCAdvertiserAssistant *)advertiserAssistant
  164. {
  165.     //TODO implement
  166. }
  167.  
  168. - (void)advertiserAssitantWillPresentInvitation:(MCAdvertiserAssistant *)advertiserAssistant {
  169.     //TODO implement
  170. }
  171.  
  172. #pragma mark  扫描其他的设备
  173. - (void)browseForProgrammaticDiscovery
  174. {
  175.  
  176.     self.browser = [[MCNearbyServiceBrowser alloc]initWithPeer:self.peerID serviceType:self.serviceType];
  177.     self.browser.delegate = self;
  178.     [self.browser startBrowsingForPeers];
  179.  
  180. }
  181.  
  182. #pragma mark MCNearbyServiceBrowserDelegate
  183. - (void)browser:(MCNearbyServiceBrowser *)browser lostPeer:(MCPeerID *)peerID
  184. {
  185.     //TODO implement
  186. }
  187.  
  188. - (void)browser:(MCNearbyServiceBrowser *)browser foundPeer:(MCPeerID *)peerID withDiscoveryInfo:(NSDictionary *)info
  189. {
  190.     if(self.didFindPeer)
  191.     {
  192.         self.didFindPeer(peerID, info);
  193.     }
  194. }
  195.  
  196. - (void)browser:(MCNearbyServiceBrowser *)browser didNotStartBrowsingForPeers:(NSError *)error
  197. {
  198.     //TODO implement
  199. }
  200.  
  201. #pragma mark 参加会议  也是会议的代理
  202. //   也是  ----- MCSessionDelegate
  203.  
  204. //  这是完成会议的结果···
  205. - (void)session:(MCSession *)session didFinishReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID atURL:(NSURL *)localURL withError:(NSError *)error
  206. {
  207.       if(self.resourceFinalOnMainQueue)
  208.     {
  209.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  210.             if(self.finalResource)
  211.             {
  212.                 self.finalResource(resourceName, peerID, localURL, error);
  213.             }
  214.         }];
  215.     }
  216.     else
  217.     {
  218.         if(self.finalResource)
  219.         {
  220.             self.finalResource(resourceName, peerID, localURL, error);
  221.         }
  222.     }
  223. }
  224. // 这是参加  普通数据的会议
  225. - (void)session:(MCSession *)session didReceiveData:(NSData *)data fromPeer:(MCPeerID *)peerID
  226. {
  227.     if(self.receiveOnMainQueue)
  228.     {
  229.     [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  230.      if(self.receiveDataBlock){
  231.         self.receiveDataBlock(data, peerID);
  232.             }
  233.         }];
  234.     }
  235.     else
  236.     {
  237.         if(self.receiveDataBlock)
  238.         {
  239.             self.receiveDataBlock(data, peerID);
  240.         }
  241.     }
  242. }
  243. // 这是参加普通流的会议
  244. - (void)session:(MCSession *)session didReceiveStream:(NSInputStream *)stream withName:(NSString *)streamName fromPeer:(MCPeerID *)peerID
  245. {
  246.      if(self.streamBlock)
  247.     {
  248.         self.streamBlock(stream, peerID, streamName);
  249.     }
  250. }
  251. // 这是参加图片资源的会议
  252. - (void)session:(MCSession *)session didStartReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID withProgress:(NSProgress *)progress
  253. {
  254.     if(self.resourceStart)
  255.     {
  256.  
  257.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  258.             if(self.didStartReceivingResource)
  259.             {
  260.                 self.didStartReceivingResource(resourceName, peerID, progress);
  261.             }
  262.         }];
  263.     }
  264.     else
  265.     {
  266.  
  267.         if(self.didStartReceivingResource)
  268.         {
  269.             self.didStartReceivingResource(resourceName, peerID, progress);
  270.         }
  271.     }
  272. }
  273.  
  274. // 这是不同数据，系那是不同会议时候的状态
  275.  
  276. - (void)session:(MCSession *)session peer:(MCPeerID *)peerID didChangeState:(MCSessionState)state
  277. {
  278.     // 这个地方是当两个蓝牙设备一旦连接起来，就会形成的一个会议
  279.     if(self.statusOnMainQueue)
  280.     {
  281.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  282.             if(self.connectionStatus)
  283.             {
  284.                 self.connectionStatus(peerID, state);
  285.             }
  286.         }];
  287.     }
  288.     else
  289.     {
  290.         if(self.connectionStatus)
  291.         {
  292.             self.connectionStatus(peerID, state);
  293.         }
  294.     }
  295. }
  296.  
  297. #pragma mark  send And receive
  298. //--------------------------------------------------------------------------------------------//
  299. // 发送消息
  300. // 用户多个
  301. - (NSError *)sendDataToAllPeers:(NSData *)data
  302. {
  303.     // 普通数据的发送
  304.     return [self sendDataToAllPeers:data withMode:MCSessionSendDataReliable];
  305. }
  306.  
  307. - (NSError *)sendDataToAllPeers:(NSData *)data withMode:(MCSessionSendDataMode)mode
  308. {
  309.     // 确实进入会议
  310.     NSError *error;
  311.     [self.session sendData:data toPeers:self.session.connectedPeers withMode:mode error:&error];
  312.     return error;
  313. }
  314.  
  315. // 用户确定一个
  316. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers
  317. {
  318.     return [self sendData:data toPeers:peers withMode:MCSessionSendDataReliable];
  319. }
  320.  
  321. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers withMode:(MCSessionSendDataMode)mode
  322. {
  323.     NSError *error;
  324.     [self.session sendData:data toPeers:peers withMode:mode error:&error];
  325.     return error;
  326. }
  327.  
  328. // 接收消息
  329. - (void)receiveDataOnMainQueue:(BOOL)mainQueue block:(void (^)(NSData *data, MCPeerID *peer))dataBlock
  330. {
  331.  
  332.     self.receiveDataBlock = [dataBlock copy];
  333.     self.receiveOnMainQueue = mainQueue;
  334. }
  335. //--------------------------------------------------------------------------------------------//
  336.  
  337. - (NSProgress *)sendResourceWithName:(NSString *)name atURL:(NSURL *)url toPeer:(MCPeerID *)peer complete:(void (^)(NSError *error))compelete
  338. {
  339.     // 图片资源数据的发送
  340.  
  341.     return [self.session sendResourceAtURL:url withName:name toPeer:peer withCompletionHandler:compelete];
  342. }
  343.  
  344. // 用户连接确定
  345. - (void)peerConnectionStatusOnMainQueue:(BOOL)mainQueue block:(void (^)(MCPeerID *peer, MCSessionState state))status
  346. {
  347.     self.connectionStatus = [status copy];
  348.     self.statusOnMainQueue = mainQueue;
  349. }
  350.  
  351. #pragma mark 自带的MCBrowserViewController类
  352. - (void)browserViewControllerDidFinish:(MCBrowserViewController *)browserViewController
  353. {
  354.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  355.         if(self.browserConnected) self.browserConnected();
  356.     }];
  357. }
  358.  
  359. - (void)browserViewControllerWasCancelled:(MCBrowserViewController *)browserViewController
  360. {
  361.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  362.         if(self.browserCancelled) self.browserCancelled();
  363.     }];
  364. }
  365.  
  366. - (void)browseWithControllerInViewController:(UIViewController *)controller connected:(void (^)(void))connected canceled:(void (^)(void))cancelled
  367. {
  368.     self.browserConnected = [connected copy];
  369.     self.browserCancelled = [cancelled copy];
  370.     // 注意这个自带的类
  371.     MCBrowserViewController *browser = [[MCBrowserViewController alloc]initWithServiceType:self.serviceType session:self.session];
  372.     browser.delegate = self;
  373.     [controller presentViewController:browser animated:YES completion:nil];
  374. }
  375.  
  376. - (NSArray *)connectedPeers
  377. {
  378.     return self.session.connectedPeers;
  379. }
  380.  
  381. // 邀请某某连接
  382. - (void)didReceiveInvitationFromPeer:(void (^)(MCPeerID *peer, NSData *context))invite;
  383. {
  384.     self.inviteBlock = [invite copy];
  385. }
  386.  
  387. - (void)invitePeerToConnect:(MCPeerID *)peer connected:(void (^)(void))connected
  388. {
  389.     [self.browser invitePeer:peer toSession:self.session withContext:nil timeout:30];
  390. }
  391.  
  392. - (void)startReceivingResourceOnMainQueue:(BOOL)mainQueue block:(void (^)(NSString *name, MCPeerID *peer, NSProgress *progress))block
  393. {
  394.  
  395.     self.didStartReceivingResource = [block copy];
  396.     self.resourceStart = mainQueue;
  397. }
  398. // 接收某某资源
  399. - (void)receiveFinalResourceOnMainQueue:(BOOL)mainQueue complete:(void (^)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error))block
  400. {
  401.     self.finalResource = [block copy];
  402.     self.resourceFinalOnMainQueue = mainQueue;
  403. }
  404. - (NSOutputStream *)streamWithName:(NSString *)name toPeer:(MCPeerID *)peerID error:(NSError * __autoreleasing *)error
  405. {
  406.     return [self.session startStreamWithName:name toPeer:peerID error:error];
  407. }
  408. // 开始转化为流
  409. - (void)didReceiveStreamFromPeer:(void (^)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName))streamBlock
  410. {
  411.     self.streamBlock = [streamBlock copy];
  412. }
  413. - (void)didFindPeerWithInfo:(void (^)(MCPeerID *peer, NSDictionary *info))found
  414. {
  415.     self.didFindPeer = [found copy];
  416. }
  417. #pragma mark  一些断开的情况
  418. - (void)disconnectSession
  419. {
  420.     [self.session disconnect];
  421. }
  422.  
  423. - (void)stopAdvertising
  424. {
  425.     [self.advertiser stopAdvertisingPeer];
  426.     [self.advertisingAssistant stop];
  427. }
  428.  
  429. - (void)stopBrowsing
  430. {
  431.     [self.browser stopBrowsingForPeers];
  432. }
  433.  
  434. - (BOOL)isConnected {
  435.     return self.session.connectedPeers && self.session.connectedPeers.count > 0;
  436. }
  437.  
  438. // 是否连接 它
  439. - (void)connectToPeer:(BOOL)connect {
  440.     self.invitationHandler(connect, self.session);
  441. }
  442.  
  443. - (MCSession *)session {
  444.     return self.currentSession;
  445. }
  446.  
  447. - (MCPeerID *)firstPeer {
  448.     return self.session.connectedPeers.firstObject;
  449. }
  450.  
  451. @end
  452.  
  453. #import "BlueSessionManager.h"
  454.  
  455. #define ServiceType @"MyService"
  456.  
  457. /*
  458.  MCAdvertiserAssistant   //可以接收，并处理用户请求连接的响应。没有回调，会弹出默认的提示框，并处理连接。
  459.  MCNearbyServiceAdvertiser //可以接收，并处理用户请求连接的响应。但是，这个类会有回调，告知有用户要与您的设备连接，然后可以自定义提示框，以及自定义连接处理。
  460.  MCNearbyServiceBrowser  //用于搜索附近的用户，并可以对搜索到的用户发出邀请加入某个会话中。
  461.  MCPeerID //这表明是一个用户
  462.  MCSession //启用和管理Multipeer连接会话中的所有人之间的沟通。 通过Sesion，给别人发送数据。
  463.  */
  464. @interface BlueSessionManager ()<MCAdvertiserAssistantDelegate, MCNearbyServiceBrowserDelegate, MCSessionDelegate, MCBrowserViewControllerDelegate, MCNearbyServiceAdvertiserDelegate, UIAlertViewDelegate>
  465. @property(strong, nonatomic) MCSession *currentSession; // 当前会议
  466. @property(strong, nonatomic) MCAdvertiserAssistant *advertisingAssistant; // 宣传助手
  467. @property(strong, nonatomic) MCNearbyServiceAdvertiser *advertiser; // 服务助手
  468. @property(strong, nonatomic) MCNearbyServiceBrowser *browser; // 搜索蓝牙者
  469. @property(strong, nonatomic) MCPeerID *peerID; // 用户
  470.  
  471. //  以下都是用到的block
  472. @property(nonatomic, copy) void(^receiveDataBlock)(NSData *data, MCPeerID *peer);
  473. @property(nonatomic, copy) void(^receiveResourceBlock)(MCPeerID *peer, NSURL *url);
  474. @property(nonatomic, copy) void(^connectionStatus)(MCPeerID *peer, MCSessionState state);
  475. @property(nonatomic, copy) void(^browserConnected)(void);
  476. @property(nonatomic, copy) void(^browserCancelled)(void);
  477. @property(nonatomic, copy) void(^didFindPeer)(MCPeerID *peer, NSDictionary *info);
  478. @property(nonatomic, copy) void(^invitationHandler)(BOOL connect, MCSession *session);
  479. @property(nonatomic, copy) void(^inviteBlock)(MCPeerID *peer, NSData *context);
  480. @property(nonatomic, copy) void(^didStartReceivingResource)(NSString *name, MCPeerID *peer, NSProgress *progress);
  481. @property(nonatomic, copy) void(^finalResource)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error);
  482. @property(nonatomic, copy) void(^streamBlock)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName);
  483. // 各种判断
  484. @property(nonatomic, assign) BOOL receiveOnMainQueue;
  485. @property(nonatomic, assign) BOOL statusOnMainQueue;
  486. @property(nonatomic, assign) BOOL resourceFinalOnMainQueue;
  487. @property(nonatomic, assign) BOOL resourceStart;
  488. @end
  489. @implementation BlueSessionManager
  490. #pragma mark 初始化自己
  491. - (instancetype)initWithDisplayName:(NSString *)displayName
  492. {
  493.     return [self initWithDisplayName:displayName securityIdentity:nil encryptionPreferences:MCEncryptionNone serviceType:ServiceType];
  494. }
  495. // 为上面自定义 用户
  496. - (instancetype)initWithDisplayName:(NSString *)displayName securityIdentity:(NSArray *)security encryptionPreferences:(MCEncryptionPreference)preference serviceType:(NSString *)type
  497. {
  498.     self = [super init];
  499.     if(!self) {
  500.         return nil;
  501.     }
  502.     self.peerID = [[MCPeerID alloc]initWithDisplayName:displayName];
  503.     self.currentSession = [[MCSession alloc]initWithPeer:self.peerID securityIdentity:security encryptionPreference:preference];
  504.     self.session.delegate = self;
  505.     self.serviceType = type;
  506.     return self;
  507. }
  508. #pragma mark 宣传自己
  509. - (void)advertiseForBrowserViewController
  510. {
  511.     [self advertiseForBrowserViewControllerWithDiscoveryInfo:nil];
  512. }
  513.  
  514. - (void)advertiseForBrowserViewControllerWithDiscoveryInfo:(NSDictionary *)info
  515. {
  516.     //
  517.     self.advertiser = [[MCNearbyServiceAdvertiser alloc]initWithPeer:self.peerID discoveryInfo:info serviceType:self.serviceType];
  518.     self.advertiser.delegate = self;
  519.     [self.advertiser startAdvertisingPeer];
  520. }
  521.  
  522. - (void)advertiseForProgrammaticDiscovery
  523. {
  524.     [self advertiseForProgrammaticDiscoveryWithDiscoveryInfo:nil];
  525. }
  526.  
  527. - (void)advertiseForProgrammaticDiscoveryWithDiscoveryInfo:(NSDictionary *)info
  528. {
  529.     //自定义自己，为了让其他设备搜索到自己
  530.     self.advertisingAssistant = [[MCAdvertiserAssistant alloc]initWithServiceType:self.serviceType discoveryInfo:info session:self.session];
  531.     self.advertisingAssistant.delegate = self;
  532.     [self.advertisingAssistant start];
  533. }
  534.  
  535. - (void)advertiser:(MCNearbyServiceAdvertiser *)advertiser didReceiveInvitationFromPeer:(MCPeerID *)peerID withContext:(NSData *)context invitationHandler:(void (^)(BOOL, MCSession *))invitationHandler {
  536.     self.invitationHandler = [invitationHandler copy];
  537.     if(self.inviteBlock) self.inviteBlock(peerID, context);
  538. }
  539.  
  540. #pragma mark 下面是MCAdvertiserAssistant的两个代理
  541. - (void)advertiserAssistantDidDismissInvitation:(MCAdvertiserAssistant *)advertiserAssistant
  542. {
  543.     //TODO implement
  544. }
  545.  
  546. - (void)advertiserAssitantWillPresentInvitation:(MCAdvertiserAssistant *)advertiserAssistant {
  547.     //TODO implement
  548. }
  549.  
  550. #pragma mark  扫描其他的设备
  551. - (void)browseForProgrammaticDiscovery
  552. {
  553.  
  554.     self.browser = [[MCNearbyServiceBrowser alloc]initWithPeer:self.peerID serviceType:self.serviceType];
  555.     self.browser.delegate = self;
  556.     [self.browser startBrowsingForPeers];
  557.  
  558. }
  559.  
  560. #pragma mark MCNearbyServiceBrowserDelegate
  561. - (void)browser:(MCNearbyServiceBrowser *)browser lostPeer:(MCPeerID *)peerID
  562. {
  563.     //TODO implement
  564. }
  565.  
  566. - (void)browser:(MCNearbyServiceBrowser *)browser foundPeer:(MCPeerID *)peerID withDiscoveryInfo:(NSDictionary *)info
  567. {
  568.     if(self.didFindPeer)
  569.     {
  570.         self.didFindPeer(peerID, info);
  571.     }
  572. }
  573.  
  574. - (void)browser:(MCNearbyServiceBrowser *)browser didNotStartBrowsingForPeers:(NSError *)error
  575. {
  576.     //TODO implement
  577. }
  578.  
  579. #pragma mark 参加会议  也是会议的代理
  580. //   也是  ----- MCSessionDelegate
  581.  
  582. //  这是完成会议的结果···
  583. - (void)session:(MCSession *)session didFinishReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID atURL:(NSURL *)localURL withError:(NSError *)error
  584. {
  585.       if(self.resourceFinalOnMainQueue)
  586.     {
  587.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  588.             if(self.finalResource)
  589.             {
  590.                 self.finalResource(resourceName, peerID, localURL, error);
  591.             }
  592.         }];
  593.     }
  594.     else
  595.     {
  596.         if(self.finalResource)
  597.         {
  598.             self.finalResource(resourceName, peerID, localURL, error);
  599.         }
  600.     }
  601. }
  602. // 这是参加  普通数据的会议
  603. - (void)session:(MCSession *)session didReceiveData:(NSData *)data fromPeer:(MCPeerID *)peerID
  604. {
  605.     if(self.receiveOnMainQueue)
  606.     {
  607.     [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  608.      if(self.receiveDataBlock){
  609.         self.receiveDataBlock(data, peerID);
  610.             }
  611.         }];
  612.     }
  613.     else
  614.     {
  615.         if(self.receiveDataBlock)
  616.         {
  617.             self.receiveDataBlock(data, peerID);
  618.         }
  619.     }
  620. }
  621. // 这是参加普通流的会议
  622. - (void)session:(MCSession *)session didReceiveStream:(NSInputStream *)stream withName:(NSString *)streamName fromPeer:(MCPeerID *)peerID
  623. {
  624.      if(self.streamBlock)
  625.     {
  626.         self.streamBlock(stream, peerID, streamName);
  627.     }
  628. }
  629. // 这是参加图片资源的会议
  630. - (void)session:(MCSession *)session didStartReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID withProgress:(NSProgress *)progress
  631. {
  632.     if(self.resourceStart)
  633.     {
  634.  
  635.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  636.             if(self.didStartReceivingResource)
  637.             {
  638.                 self.didStartReceivingResource(resourceName, peerID, progress);
  639.             }
  640.         }];
  641.     }
  642.     else
  643.     {
  644.  
  645.         if(self.didStartReceivingResource)
  646.         {
  647.             self.didStartReceivingResource(resourceName, peerID, progress);
  648.         }
  649.     }
  650. }
  651.  
  652. // 这是不同数据，系那是不同会议时候的状态
  653.  
  654. - (void)session:(MCSession *)session peer:(MCPeerID *)peerID didChangeState:(MCSessionState)state
  655. {
  656.     // 这个地方是当两个蓝牙设备一旦连接起来，就会形成的一个会议
  657.     if(self.statusOnMainQueue)
  658.     {
  659.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  660.             if(self.connectionStatus)
  661.             {
  662.                 self.connectionStatus(peerID, state);
  663.             }
  664.         }];
  665.     }
  666.     else
  667.     {
  668.         if(self.connectionStatus)
  669.         {
  670.             self.connectionStatus(peerID, state);
  671.         }
  672.     }
  673. }
  674.  
  675. #pragma mark  send And receive
  676. //--------------------------------------------------------------------------------------------//
  677. // 发送消息
  678. // 用户多个
  679. - (NSError *)sendDataToAllPeers:(NSData *)data
  680. {
  681.     // 普通数据的发送
  682.     return [self sendDataToAllPeers:data withMode:MCSessionSendDataReliable];
  683. }
  684.  
  685. - (NSError *)sendDataToAllPeers:(NSData *)data withMode:(MCSessionSendDataMode)mode
  686. {
  687.     // 确实进入会议
  688.     NSError *error;
  689.     [self.session sendData:data toPeers:self.session.connectedPeers withMode:mode error:&error];
  690.     return error;
  691. }
  692.  
  693. // 用户确定一个
  694. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers
  695. {
  696.     return [self sendData:data toPeers:peers withMode:MCSessionSendDataReliable];
  697. }
  698.  
  699. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers withMode:(MCSessionSendDataMode)mode
  700. {
  701.     NSError *error;
  702.     [self.session sendData:data toPeers:peers withMode:mode error:&error];
  703.     return error;
  704. }
  705.  
  706. // 接收消息
  707. - (void)receiveDataOnMainQueue:(BOOL)mainQueue block:(void (^)(NSData *data, MCPeerID *peer))dataBlock
  708. {
  709.  
  710.     self.receiveDataBlock = [dataBlock copy];
  711.     self.receiveOnMainQueue = mainQueue;
  712. }
  713. //--------------------------------------------------------------------------------------------//
  714.  
  715. - (NSProgress *)sendResourceWithName:(NSString *)name atURL:(NSURL *)url toPeer:(MCPeerID *)peer complete:(void (^)(NSError *error))compelete
  716. {
  717.     // 图片资源数据的发送
  718.  
  719.     return [self.session sendResourceAtURL:url withName:name toPeer:peer withCompletionHandler:compelete];
  720. }
  721.  
  722. // 用户连接确定
  723. - (void)peerConnectionStatusOnMainQueue:(BOOL)mainQueue block:(void (^)(MCPeerID *peer, MCSessionState state))status
  724. {
  725.     self.connectionStatus = [status copy];
  726.     self.statusOnMainQueue = mainQueue;
  727. }
  728.  
  729. #pragma mark 自带的MCBrowserViewController类
  730. - (void)browserViewControllerDidFinish:(MCBrowserViewController *)browserViewController
  731. {
  732.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  733.         if(self.browserConnected) self.browserConnected();
  734.     }];
  735. }
  736.  
  737. - (void)browserViewControllerWasCancelled:(MCBrowserViewController *)browserViewController
  738. {
  739.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  740.         if(self.browserCancelled) self.browserCancelled();
  741.     }];
  742. }
  743.  
  744. - (void)browseWithControllerInViewController:(UIViewController *)controller connected:(void (^)(void))connected canceled:(void (^)(void))cancelled
  745. {
  746.     self.browserConnected = [connected copy];
  747.     self.browserCancelled = [cancelled copy];
  748.     // 注意这个自带的类
  749.     MCBrowserViewController *browser = [[MCBrowserViewController alloc]initWithServiceType:self.serviceType session:self.session];
  750.     browser.delegate = self;
  751.     [controller presentViewController:browser animated:YES completion:nil];
  752. }
  753.  
  754. - (NSArray *)connectedPeers
  755. {
  756.     return self.session.connectedPeers;
  757. }
  758.  
  759. // 邀请某某连接
  760. - (void)didReceiveInvitationFromPeer:(void (^)(MCPeerID *peer, NSData *context))invite;
  761. {
  762.     self.inviteBlock = [invite copy];
  763. }
  764.  
  765. - (void)invitePeerToConnect:(MCPeerID *)peer connected:(void (^)(void))connected
  766. {
  767.     [self.browser invitePeer:peer toSession:self.session withContext:nil timeout:30];
  768. }
  769.  
  770. - (void)startReceivingResourceOnMainQueue:(BOOL)mainQueue block:(void (^)(NSString *name, MCPeerID *peer, NSProgress *progress))block
  771. {
  772.  
  773.     self.didStartReceivingResource = [block copy];
  774.     self.resourceStart = mainQueue;
  775. }
  776. // 接收某某资源
  777. - (void)receiveFinalResourceOnMainQueue:(BOOL)mainQueue complete:(void (^)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error))block
  778. {
  779.     self.finalResource = [block copy];
  780.     self.resourceFinalOnMainQueue = mainQueue;
  781. }
  782. - (NSOutputStream *)streamWithName:(NSString *)name toPeer:(MCPeerID *)peerID error:(NSError * __autoreleasing *)error
  783. {
  784.     return [self.session startStreamWithName:name toPeer:peerID error:error];
  785. }
  786. // 开始转化为流
  787. - (void)didReceiveStreamFromPeer:(void (^)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName))streamBlock
  788. {
  789.     self.streamBlock = [streamBlock copy];
  790. }
  791. - (void)didFindPeerWithInfo:(void (^)(MCPeerID *peer, NSDictionary *info))found
  792. {
  793.     self.didFindPeer = [found copy];
  794. }
  795. #pragma mark  一些断开的情况
  796. - (void)disconnectSession
  797. {
  798.     [self.session disconnect];
  799. }
  800.  
  801. - (void)stopAdvertising
  802. {
  803.     [self.advertiser stopAdvertisingPeer];
  804.     [self.advertisingAssistant stop];
  805. }
  806.  
  807. - (void)stopBrowsing
  808. {
  809.     [self.browser stopBrowsingForPeers];
  810. }
  811.  
  812. - (BOOL)isConnected {
  813.     return self.session.connectedPeers && self.session.connectedPeers.count > 0;
  814. }
  815.  
  816. // 是否连接 它
  817. - (void)connectToPeer:(BOOL)connect {
  818.     self.invitationHandler(connect, self.session);
  819. }
  820.  
  821. - (MCSession *)session {
  822.     return self.currentSession;
  823. }
  824.  
  825. - (MCPeerID *)firstPeer {
  826.     return self.session.connectedPeers.firstObject;
  827. }
  828.  
  829. @end
  830.  
  831. #import "BlueSessionManager.h"
  832.  
  833. #define ServiceType @"MyService"
  834.  
  835. /*
  836.  MCAdvertiserAssistant   //可以接收，并处理用户请求连接的响应。没有回调，会弹出默认的提示框，并处理连接。
  837.  MCNearbyServiceAdvertiser //可以接收，并处理用户请求连接的响应。但是，这个类会有回调，告知有用户要与您的设备连接，然后可以自定义提示框，以及自定义连接处理。
  838.  MCNearbyServiceBrowser  //用于搜索附近的用户，并可以对搜索到的用户发出邀请加入某个会话中。
  839.  MCPeerID //这表明是一个用户
  840.  MCSession //启用和管理Multipeer连接会话中的所有人之间的沟通。 通过Sesion，给别人发送数据。
  841.  */
  842. @interface BlueSessionManager ()<MCAdvertiserAssistantDelegate, MCNearbyServiceBrowserDelegate, MCSessionDelegate, MCBrowserViewControllerDelegate, MCNearbyServiceAdvertiserDelegate, UIAlertViewDelegate>
  843. @property(strong, nonatomic) MCSession *currentSession; // 当前会议
  844. @property(strong, nonatomic) MCAdvertiserAssistant *advertisingAssistant; // 宣传助手
  845. @property(strong, nonatomic) MCNearbyServiceAdvertiser *advertiser; // 服务助手
  846. @property(strong, nonatomic) MCNearbyServiceBrowser *browser; // 搜索蓝牙者
  847. @property(strong, nonatomic) MCPeerID *peerID; // 用户
  848.  
  849. //  以下都是用到的block
  850. @property(nonatomic, copy) void(^receiveDataBlock)(NSData *data, MCPeerID *peer);
  851. @property(nonatomic, copy) void(^receiveResourceBlock)(MCPeerID *peer, NSURL *url);
  852. @property(nonatomic, copy) void(^connectionStatus)(MCPeerID *peer, MCSessionState state);
  853. @property(nonatomic, copy) void(^browserConnected)(void);
  854. @property(nonatomic, copy) void(^browserCancelled)(void);
  855. @property(nonatomic, copy) void(^didFindPeer)(MCPeerID *peer, NSDictionary *info);
  856. @property(nonatomic, copy) void(^invitationHandler)(BOOL connect, MCSession *session);
  857. @property(nonatomic, copy) void(^inviteBlock)(MCPeerID *peer, NSData *context);
  858. @property(nonatomic, copy) void(^didStartReceivingResource)(NSString *name, MCPeerID *peer, NSProgress *progress);
  859. @property(nonatomic, copy) void(^finalResource)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error);
  860. @property(nonatomic, copy) void(^streamBlock)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName);
  861. // 各种判断
  862. @property(nonatomic, assign) BOOL receiveOnMainQueue;
  863. @property(nonatomic, assign) BOOL statusOnMainQueue;
  864. @property(nonatomic, assign) BOOL resourceFinalOnMainQueue;
  865. @property(nonatomic, assign) BOOL resourceStart;
  866. @end
  867. @implementation BlueSessionManager
  868. #pragma mark 初始化自己
  869. - (instancetype)initWithDisplayName:(NSString *)displayName
  870. {
  871.     return [self initWithDisplayName:displayName securityIdentity:nil encryptionPreferences:MCEncryptionNone serviceType:ServiceType];
  872. }
  873. // 为上面自定义 用户
  874. - (instancetype)initWithDisplayName:(NSString *)displayName securityIdentity:(NSArray *)security encryptionPreferences:(MCEncryptionPreference)preference serviceType:(NSString *)type
  875. {
  876.     self = [super init];
  877.     if(!self) {
  878.         return nil;
  879.     }
  880.     self.peerID = [[MCPeerID alloc]initWithDisplayName:displayName];
  881.     self.currentSession = [[MCSession alloc]initWithPeer:self.peerID securityIdentity:security encryptionPreference:preference];
  882.     self.session.delegate = self;
  883.     self.serviceType = type;
  884.     return self;
  885. }
  886. #pragma mark 宣传自己
  887. - (void)advertiseForBrowserViewController
  888. {
  889.     [self advertiseForBrowserViewControllerWithDiscoveryInfo:nil];
  890. }
  891.  
  892. - (void)advertiseForBrowserViewControllerWithDiscoveryInfo:(NSDictionary *)info
  893. {
  894.     //
  895.     self.advertiser = [[MCNearbyServiceAdvertiser alloc]initWithPeer:self.peerID discoveryInfo:info serviceType:self.serviceType];
  896.     self.advertiser.delegate = self;
  897.     [self.advertiser startAdvertisingPeer];
  898. }
  899.  
  900. - (void)advertiseForProgrammaticDiscovery
  901. {
  902.     [self advertiseForProgrammaticDiscoveryWithDiscoveryInfo:nil];
  903. }
  904.  
  905. - (void)advertiseForProgrammaticDiscoveryWithDiscoveryInfo:(NSDictionary *)info
  906. {
  907.     //自定义自己，为了让其他设备搜索到自己
  908.     self.advertisingAssistant = [[MCAdvertiserAssistant alloc]initWithServiceType:self.serviceType discoveryInfo:info session:self.session];
  909.     self.advertisingAssistant.delegate = self;
  910.     [self.advertisingAssistant start];
  911. }
  912.  
  913. - (void)advertiser:(MCNearbyServiceAdvertiser *)advertiser didReceiveInvitationFromPeer:(MCPeerID *)peerID withContext:(NSData *)context invitationHandler:(void (^)(BOOL, MCSession *))invitationHandler {
  914.     self.invitationHandler = [invitationHandler copy];
  915.     if(self.inviteBlock) self.inviteBlock(peerID, context);
  916. }
  917.  
  918. #pragma mark 下面是MCAdvertiserAssistant的两个代理
  919. - (void)advertiserAssistantDidDismissInvitation:(MCAdvertiserAssistant *)advertiserAssistant
  920. {
  921.     //TODO implement
  922. }
  923.  
  924. - (void)advertiserAssitantWillPresentInvitation:(MCAdvertiserAssistant *)advertiserAssistant {
  925.     //TODO implement
  926. }
  927.  
  928. #pragma mark  扫描其他的设备
  929. - (void)browseForProgrammaticDiscovery
  930. {
  931.  
  932.     self.browser = [[MCNearbyServiceBrowser alloc]initWithPeer:self.peerID serviceType:self.serviceType];
  933.     self.browser.delegate = self;
  934.     [self.browser startBrowsingForPeers];
  935.  
  936. }
  937.  
  938. #pragma mark MCNearbyServiceBrowserDelegate
  939. - (void)browser:(MCNearbyServiceBrowser *)browser lostPeer:(MCPeerID *)peerID
  940. {
  941.     //TODO implement
  942. }
  943.  
  944. - (void)browser:(MCNearbyServiceBrowser *)browser foundPeer:(MCPeerID *)peerID withDiscoveryInfo:(NSDictionary *)info
  945. {
  946.     if(self.didFindPeer)
  947.     {
  948.         self.didFindPeer(peerID, info);
  949.     }
  950. }
  951.  
  952. - (void)browser:(MCNearbyServiceBrowser *)browser didNotStartBrowsingForPeers:(NSError *)error
  953. {
  954.     //TODO implement
  955. }
  956.  
  957. #pragma mark 参加会议  也是会议的代理
  958. //   也是  ----- MCSessionDelegate
  959.  
  960. //  这是完成会议的结果···
  961. - (void)session:(MCSession *)session didFinishReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID atURL:(NSURL *)localURL withError:(NSError *)error
  962. {
  963.       if(self.resourceFinalOnMainQueue)
  964.     {
  965.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  966.             if(self.finalResource)
  967.             {
  968.                 self.finalResource(resourceName, peerID, localURL, error);
  969.             }
  970.         }];
  971.     }
  972.     else
  973.     {
  974.         if(self.finalResource)
  975.         {
  976.             self.finalResource(resourceName, peerID, localURL, error);
  977.         }
  978.     }
  979. }
  980. // 这是参加  普通数据的会议
  981. - (void)session:(MCSession *)session didReceiveData:(NSData *)data fromPeer:(MCPeerID *)peerID
  982. {
  983.     if(self.receiveOnMainQueue)
  984.     {
  985.     [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  986.      if(self.receiveDataBlock){
  987.         self.receiveDataBlock(data, peerID);
  988.             }
  989.         }];
  990.     }
  991.     else
  992.     {
  993.         if(self.receiveDataBlock)
  994.         {
  995.             self.receiveDataBlock(data, peerID);
  996.         }
  997.     }
  998. }
  999. // 这是参加普通流的会议
  1000. - (void)session:(MCSession *)session didReceiveStream:(NSInputStream *)stream withName:(NSString *)streamName fromPeer:(MCPeerID *)peerID
  1001. {
  1002.      if(self.streamBlock)
  1003.     {
  1004.         self.streamBlock(stream, peerID, streamName);
  1005.     }
  1006. }
  1007. // 这是参加图片资源的会议
  1008. - (void)session:(MCSession *)session didStartReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID withProgress:(NSProgress *)progress
  1009. {
  1010.     if(self.resourceStart)
  1011.     {
  1012.  
  1013.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  1014.             if(self.didStartReceivingResource)
  1015.             {
  1016.                 self.didStartReceivingResource(resourceName, peerID, progress);
  1017.             }
  1018.         }];
  1019.     }
  1020.     else
  1021.     {
  1022.  
  1023.         if(self.didStartReceivingResource)
  1024.         {
  1025.             self.didStartReceivingResource(resourceName, peerID, progress);
  1026.         }
  1027.     }
  1028. }
  1029.  
  1030. // 这是不同数据，系那是不同会议时候的状态
  1031.  
  1032. - (void)session:(MCSession *)session peer:(MCPeerID *)peerID didChangeState:(MCSessionState)state
  1033. {
  1034.     // 这个地方是当两个蓝牙设备一旦连接起来，就会形成的一个会议
  1035.     if(self.statusOnMainQueue)
  1036.     {
  1037.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  1038.             if(self.connectionStatus)
  1039.             {
  1040.                 self.connectionStatus(peerID, state);
  1041.             }
  1042.         }];
  1043.     }
  1044.     else
  1045.     {
  1046.         if(self.connectionStatus)
  1047.         {
  1048.             self.connectionStatus(peerID, state);
  1049.         }
  1050.     }
  1051. }
  1052.  
  1053. #pragma mark  send And receive
  1054. //--------------------------------------------------------------------------------------------//
  1055. // 发送消息
  1056. // 用户多个
  1057. - (NSError *)sendDataToAllPeers:(NSData *)data
  1058. {
  1059.     // 普通数据的发送
  1060.     return [self sendDataToAllPeers:data withMode:MCSessionSendDataReliable];
  1061. }
  1062.  
  1063. - (NSError *)sendDataToAllPeers:(NSData *)data withMode:(MCSessionSendDataMode)mode
  1064. {
  1065.     // 确实进入会议
  1066.     NSError *error;
  1067.     [self.session sendData:data toPeers:self.session.connectedPeers withMode:mode error:&error];
  1068.     return error;
  1069. }
  1070.  
  1071. // 用户确定一个
  1072. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers
  1073. {
  1074.     return [self sendData:data toPeers:peers withMode:MCSessionSendDataReliable];
  1075. }
  1076.  
  1077. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers withMode:(MCSessionSendDataMode)mode
  1078. {
  1079.     NSError *error;
  1080.     [self.session sendData:data toPeers:peers withMode:mode error:&error];
  1081.     return error;
  1082. }
  1083.  
  1084. // 接收消息
  1085. - (void)receiveDataOnMainQueue:(BOOL)mainQueue block:(void (^)(NSData *data, MCPeerID *peer))dataBlock
  1086. {
  1087.  
  1088.     self.receiveDataBlock = [dataBlock copy];
  1089.     self.receiveOnMainQueue = mainQueue;
  1090. }
  1091. //--------------------------------------------------------------------------------------------//
  1092.  
  1093. - (NSProgress *)sendResourceWithName:(NSString *)name atURL:(NSURL *)url toPeer:(MCPeerID *)peer complete:(void (^)(NSError *error))compelete
  1094. {
  1095.     // 图片资源数据的发送
  1096.  
  1097.     return [self.session sendResourceAtURL:url withName:name toPeer:peer withCompletionHandler:compelete];
  1098. }
  1099.  
  1100. // 用户连接确定
  1101. - (void)peerConnectionStatusOnMainQueue:(BOOL)mainQueue block:(void (^)(MCPeerID *peer, MCSessionState state))status
  1102. {
  1103.     self.connectionStatus = [status copy];
  1104.     self.statusOnMainQueue = mainQueue;
  1105. }
  1106.  
  1107. #pragma mark 自带的MCBrowserViewController类
  1108. - (void)browserViewControllerDidFinish:(MCBrowserViewController *)browserViewController
  1109. {
  1110.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  1111.         if(self.browserConnected) self.browserConnected();
  1112.     }];
  1113. }
  1114.  
  1115. - (void)browserViewControllerWasCancelled:(MCBrowserViewController *)browserViewController
  1116. {
  1117.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  1118.         if(self.browserCancelled) self.browserCancelled();
  1119.     }];
  1120. }
  1121.  
  1122. - (void)browseWithControllerInViewController:(UIViewController *)controller connected:(void (^)(void))connected canceled:(void (^)(void))cancelled
  1123. {
  1124.     self.browserConnected = [connected copy];
  1125.     self.browserCancelled = [cancelled copy];
  1126.     // 注意这个自带的类
  1127.     MCBrowserViewController *browser = [[MCBrowserViewController alloc]initWithServiceType:self.serviceType session:self.session];
  1128.     browser.delegate = self;
  1129.     [controller presentViewController:browser animated:YES completion:nil];
  1130. }
  1131.  
  1132. - (NSArray *)connectedPeers
  1133. {
  1134.     return self.session.connectedPeers;
  1135. }
  1136.  
  1137. // 邀请某某连接
  1138. - (void)didReceiveInvitationFromPeer:(void (^)(MCPeerID *peer, NSData *context))invite;
  1139. {
  1140.     self.inviteBlock = [invite copy];
  1141. }
  1142.  
  1143. - (void)invitePeerToConnect:(MCPeerID *)peer connected:(void (^)(void))connected
  1144. {
  1145.     [self.browser invitePeer:peer toSession:self.session withContext:nil timeout:30];
  1146. }
  1147.  
  1148. - (void)startReceivingResourceOnMainQueue:(BOOL)mainQueue block:(void (^)(NSString *name, MCPeerID *peer, NSProgress *progress))block
  1149. {
  1150.  
  1151.     self.didStartReceivingResource = [block copy];
  1152.     self.resourceStart = mainQueue;
  1153. }
  1154. // 接收某某资源
  1155. - (void)receiveFinalResourceOnMainQueue:(BOOL)mainQueue complete:(void (^)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error))block
  1156. {
  1157.     self.finalResource = [block copy];
  1158.     self.resourceFinalOnMainQueue = mainQueue;
  1159. }
  1160. - (NSOutputStream *)streamWithName:(NSString *)name toPeer:(MCPeerID *)peerID error:(NSError * __autoreleasing *)error
  1161. {
  1162.     return [self.session startStreamWithName:name toPeer:peerID error:error];
  1163. }
  1164. // 开始转化为流
  1165. - (void)didReceiveStreamFromPeer:(void (^)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName))streamBlock
  1166. {
  1167.     self.streamBlock = [streamBlock copy];
  1168. }
  1169. - (void)didFindPeerWithInfo:(void (^)(MCPeerID *peer, NSDictionary *info))found
  1170. {
  1171.     self.didFindPeer = [found copy];
  1172. }
  1173. #pragma mark  一些断开的情况
  1174. - (void)disconnectSession
  1175. {
  1176.     [self.session disconnect];
  1177. }
  1178.  
  1179. - (void)stopAdvertising
  1180. {
  1181.     [self.advertiser stopAdvertisingPeer];
  1182.     [self.advertisingAssistant stop];
  1183. }
  1184.  
  1185. - (void)stopBrowsing
  1186. {
  1187.     [self.browser stopBrowsingForPeers];
  1188. }
  1189.  
  1190. - (BOOL)isConnected {
  1191.     return self.session.connectedPeers && self.session.connectedPeers.count > 0;
  1192. }
  1193.  
  1194. // 是否连接 它
  1195. - (void)connectToPeer:(BOOL)connect {
  1196.     self.invitationHandler(connect, self.session);
  1197. }
  1198.  
  1199. - (MCSession *)session {
  1200.     return self.currentSession;
  1201. }
  1202.  
  1203. - (MCPeerID *)firstPeer {
  1204.     return self.session.connectedPeers.firstObject;
  1205. }
  1206.  
  1207. @end
  1208.  
  1209. .m
  1210.  
  1211. #import "BlueSessionManager.h"
  1212.  
  1213. #define ServiceType @"MyService"
  1214.  
  1215. /*
  1216.  MCAdvertiserAssistant   //可以接收，并处理用户请求连接的响应。没有回调，会弹出默认的提示框，并处理连接。
  1217.  MCNearbyServiceAdvertiser //可以接收，并处理用户请求连接的响应。但是，这个类会有回调，告知有用户要与您的设备连接，然后可以自定义提示框，以及自定义连接处理。
  1218.  MCNearbyServiceBrowser  //用于搜索附近的用户，并可以对搜索到的用户发出邀请加入某个会话中。
  1219.  MCPeerID //这表明是一个用户
  1220.  MCSession //启用和管理Multipeer连接会话中的所有人之间的沟通。 通过Sesion，给别人发送数据。
  1221.  */
  1222. @interface BlueSessionManager ()<MCAdvertiserAssistantDelegate, MCNearbyServiceBrowserDelegate, MCSessionDelegate, MCBrowserViewControllerDelegate, MCNearbyServiceAdvertiserDelegate, UIAlertViewDelegate>
  1223. @property(strong, nonatomic) MCSession *currentSession; // 当前会议
  1224. @property(strong, nonatomic) MCAdvertiserAssistant *advertisingAssistant; // 宣传助手
  1225. @property(strong, nonatomic) MCNearbyServiceAdvertiser *advertiser; // 服务助手
  1226. @property(strong, nonatomic) MCNearbyServiceBrowser *browser; // 搜索蓝牙者
  1227. @property(strong, nonatomic) MCPeerID *peerID; // 用户
  1228.  
  1229. //  以下都是用到的block
  1230. @property(nonatomic, copy) void(^receiveDataBlock)(NSData *data, MCPeerID *peer);
  1231. @property(nonatomic, copy) void(^receiveResourceBlock)(MCPeerID *peer, NSURL *url);
  1232. @property(nonatomic, copy) void(^connectionStatus)(MCPeerID *peer, MCSessionState state);
  1233. @property(nonatomic, copy) void(^browserConnected)(void);
  1234. @property(nonatomic, copy) void(^browserCancelled)(void);
  1235. @property(nonatomic, copy) void(^didFindPeer)(MCPeerID *peer, NSDictionary *info);
  1236. @property(nonatomic, copy) void(^invitationHandler)(BOOL connect, MCSession *session);
  1237. @property(nonatomic, copy) void(^inviteBlock)(MCPeerID *peer, NSData *context);
  1238. @property(nonatomic, copy) void(^didStartReceivingResource)(NSString *name, MCPeerID *peer, NSProgress *progress);
  1239. @property(nonatomic, copy) void(^finalResource)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error);
  1240. @property(nonatomic, copy) void(^streamBlock)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName);
  1241. // 各种判断
  1242. @property(nonatomic, assign) BOOL receiveOnMainQueue;
  1243. @property(nonatomic, assign) BOOL statusOnMainQueue;
  1244. @property(nonatomic, assign) BOOL resourceFinalOnMainQueue;
  1245. @property(nonatomic, assign) BOOL resourceStart;
  1246. @end
  1247. @implementation BlueSessionManager
  1248. #pragma mark 初始化自己
  1249. - (instancetype)initWithDisplayName:(NSString *)displayName
  1250. {
  1251.     return [self initWithDisplayName:displayName securityIdentity:nil encryptionPreferences:MCEncryptionNone serviceType:ServiceType];
  1252. }
  1253. // 为上面自定义 用户
  1254. - (instancetype)initWithDisplayName:(NSString *)displayName securityIdentity:(NSArray *)security encryptionPreferences:(MCEncryptionPreference)preference serviceType:(NSString *)type
  1255. {
  1256.     self = [super init];
  1257.     if(!self) {
  1258.         return nil;
  1259.     }
  1260.     self.peerID = [[MCPeerID alloc]initWithDisplayName:displayName];
  1261.     self.currentSession = [[MCSession alloc]initWithPeer:self.peerID securityIdentity:security encryptionPreference:preference];
  1262.     self.session.delegate = self;
  1263.     self.serviceType = type;
  1264.     return self;
  1265. }
  1266. #pragma mark 宣传自己
  1267. - (void)advertiseForBrowserViewController
  1268. {
  1269.     [self advertiseForBrowserViewControllerWithDiscoveryInfo:nil];
  1270. }
  1271.  
  1272. - (void)advertiseForBrowserViewControllerWithDiscoveryInfo:(NSDictionary *)info
  1273. {
  1274.     //
  1275.     self.advertiser = [[MCNearbyServiceAdvertiser alloc]initWithPeer:self.peerID discoveryInfo:info serviceType:self.serviceType];
  1276.     self.advertiser.delegate = self;
  1277.     [self.advertiser startAdvertisingPeer];
  1278. }
  1279.  
  1280. - (void)advertiseForProgrammaticDiscovery
  1281. {
  1282.     [self advertiseForProgrammaticDiscoveryWithDiscoveryInfo:nil];
  1283. }
  1284.  
  1285. - (void)advertiseForProgrammaticDiscoveryWithDiscoveryInfo:(NSDictionary *)info
  1286. {
  1287.     //自定义自己，为了让其他设备搜索到自己
  1288.     self.advertisingAssistant = [[MCAdvertiserAssistant alloc]initWithServiceType:self.serviceType discoveryInfo:info session:self.session];
  1289.     self.advertisingAssistant.delegate = self;
  1290.     [self.advertisingAssistant start];
  1291. }
  1292.  
  1293. - (void)advertiser:(MCNearbyServiceAdvertiser *)advertiser didReceiveInvitationFromPeer:(MCPeerID *)peerID withContext:(NSData *)context invitationHandler:(void (^)(BOOL, MCSession *))invitationHandler {
  1294.     self.invitationHandler = [invitationHandler copy];
  1295.     if(self.inviteBlock) self.inviteBlock(peerID, context);
  1296. }
  1297.  
  1298. #pragma mark 下面是MCAdvertiserAssistant的两个代理
  1299. - (void)advertiserAssistantDidDismissInvitation:(MCAdvertiserAssistant *)advertiserAssistant
  1300. {
  1301.     //TODO implement
  1302. }
  1303.  
  1304. - (void)advertiserAssitantWillPresentInvitation:(MCAdvertiserAssistant *)advertiserAssistant {
  1305.     //TODO implement
  1306. }
  1307.  
  1308. #pragma mark  扫描其他的设备
  1309. - (void)browseForProgrammaticDiscovery
  1310. {
  1311.  
  1312.     self.browser = [[MCNearbyServiceBrowser alloc]initWithPeer:self.peerID serviceType:self.serviceType];
  1313.     self.browser.delegate = self;
  1314.     [self.browser startBrowsingForPeers];
  1315.  
  1316. }
  1317.  
  1318. #pragma mark MCNearbyServiceBrowserDelegate
  1319. - (void)browser:(MCNearbyServiceBrowser *)browser lostPeer:(MCPeerID *)peerID
  1320. {
  1321.     //TODO implement
  1322. }
  1323.  
  1324. - (void)browser:(MCNearbyServiceBrowser *)browser foundPeer:(MCPeerID *)peerID withDiscoveryInfo:(NSDictionary *)info
  1325. {
  1326.     if(self.didFindPeer)
  1327.     {
  1328.         self.didFindPeer(peerID, info);
  1329.     }
  1330. }
  1331.  
  1332. - (void)browser:(MCNearbyServiceBrowser *)browser didNotStartBrowsingForPeers:(NSError *)error
  1333. {
  1334.     //TODO implement
  1335. }
  1336.  
  1337. #pragma mark 参加会议  也是会议的代理
  1338. //   也是  ----- MCSessionDelegate
  1339.  
  1340. //  这是完成会议的结果···
  1341. - (void)session:(MCSession *)session didFinishReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID atURL:(NSURL *)localURL withError:(NSError *)error
  1342. {
  1343.       if(self.resourceFinalOnMainQueue)
  1344.     {
  1345.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  1346.             if(self.finalResource)
  1347.             {
  1348.                 self.finalResource(resourceName, peerID, localURL, error);
  1349.             }
  1350.         }];
  1351.     }
  1352.     else
  1353.     {
  1354.         if(self.finalResource)
  1355.         {
  1356.             self.finalResource(resourceName, peerID, localURL, error);
  1357.         }
  1358.     }
  1359. }
  1360. // 这是参加  普通数据的会议
  1361. - (void)session:(MCSession *)session didReceiveData:(NSData *)data fromPeer:(MCPeerID *)peerID
  1362. {
  1363.     if(self.receiveOnMainQueue)
  1364.     {
  1365.     [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  1366.      if(self.receiveDataBlock){
  1367.         self.receiveDataBlock(data, peerID);
  1368.             }
  1369.         }];
  1370.     }
  1371.     else
  1372.     {
  1373.         if(self.receiveDataBlock)
  1374.         {
  1375.             self.receiveDataBlock(data, peerID);
  1376.         }
  1377.     }
  1378. }
  1379. // 这是参加普通流的会议
  1380. - (void)session:(MCSession *)session didReceiveStream:(NSInputStream *)stream withName:(NSString *)streamName fromPeer:(MCPeerID *)peerID
  1381. {
  1382.      if(self.streamBlock)
  1383.     {
  1384.         self.streamBlock(stream, peerID, streamName);
  1385.     }
  1386. }
  1387. // 这是参加图片资源的会议
  1388. - (void)session:(MCSession *)session didStartReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID withProgress:(NSProgress *)progress
  1389. {
  1390.     if(self.resourceStart)
  1391.     {
  1392.  
  1393.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  1394.             if(self.didStartReceivingResource)
  1395.             {
  1396.                 self.didStartReceivingResource(resourceName, peerID, progress);
  1397.             }
  1398.         }];
  1399.     }
  1400.     else
  1401.     {
  1402.  
  1403.         if(self.didStartReceivingResource)
  1404.         {
  1405.             self.didStartReceivingResource(resourceName, peerID, progress);
  1406.         }
  1407.     }
  1408. }
  1409.  
  1410. // 这是不同数据，系那是不同会议时候的状态
  1411.  
  1412. - (void)session:(MCSession *)session peer:(MCPeerID *)peerID didChangeState:(MCSessionState)state
  1413. {
  1414.     // 这个地方是当两个蓝牙设备一旦连接起来，就会形成的一个会议
  1415.     if(self.statusOnMainQueue)
  1416.     {
  1417.         [[NSOperationQueue mainQueue]addOperationWithBlock:^{
  1418.             if(self.connectionStatus)
  1419.             {
  1420.                 self.connectionStatus(peerID, state);
  1421.             }
  1422.         }];
  1423.     }
  1424.     else
  1425.     {
  1426.         if(self.connectionStatus)
  1427.         {
  1428.             self.connectionStatus(peerID, state);
  1429.         }
  1430.     }
  1431. }
  1432.  
  1433. #pragma mark  send And receive
  1434. //--------------------------------------------------------------------------------------------//
  1435. // 发送消息
  1436. // 用户多个
  1437. - (NSError *)sendDataToAllPeers:(NSData *)data
  1438. {
  1439.     // 普通数据的发送
  1440.     return [self sendDataToAllPeers:data withMode:MCSessionSendDataReliable];
  1441. }
  1442.  
  1443. - (NSError *)sendDataToAllPeers:(NSData *)data withMode:(MCSessionSendDataMode)mode
  1444. {
  1445.     // 确实进入会议
  1446.     NSError *error;
  1447.     [self.session sendData:data toPeers:self.session.connectedPeers withMode:mode error:&error];
  1448.     return error;
  1449. }
  1450.  
  1451. // 用户确定一个
  1452. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers
  1453. {
  1454.     return [self sendData:data toPeers:peers withMode:MCSessionSendDataReliable];
  1455. }
  1456.  
  1457. - (NSError *)sendData:(NSData *)data toPeers:(NSArray *)peers withMode:(MCSessionSendDataMode)mode
  1458. {
  1459.     NSError *error;
  1460.     [self.session sendData:data toPeers:peers withMode:mode error:&error];
  1461.     return error;
  1462. }
  1463.  
  1464. // 接收消息
  1465. - (void)receiveDataOnMainQueue:(BOOL)mainQueue block:(void (^)(NSData *data, MCPeerID *peer))dataBlock
  1466. {
  1467.  
  1468.     self.receiveDataBlock = [dataBlock copy];
  1469.     self.receiveOnMainQueue = mainQueue;
  1470. }
  1471. //--------------------------------------------------------------------------------------------//
  1472.  
  1473. - (NSProgress *)sendResourceWithName:(NSString *)name atURL:(NSURL *)url toPeer:(MCPeerID *)peer complete:(void (^)(NSError *error))compelete
  1474. {
  1475.     // 图片资源数据的发送
  1476.  
  1477.     return [self.session sendResourceAtURL:url withName:name toPeer:peer withCompletionHandler:compelete];
  1478. }
  1479.  
  1480. // 用户连接确定
  1481. - (void)peerConnectionStatusOnMainQueue:(BOOL)mainQueue block:(void (^)(MCPeerID *peer, MCSessionState state))status
  1482. {
  1483.     self.connectionStatus = [status copy];
  1484.     self.statusOnMainQueue = mainQueue;
  1485. }
  1486.  
  1487. #pragma mark 自带的MCBrowserViewController类
  1488. - (void)browserViewControllerDidFinish:(MCBrowserViewController *)browserViewController
  1489. {
  1490.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  1491.         if(self.browserConnected) self.browserConnected();
  1492.     }];
  1493. }
  1494.  
  1495. - (void)browserViewControllerWasCancelled:(MCBrowserViewController *)browserViewController
  1496. {
  1497.     [browserViewController dismissViewControllerAnimated:YES completion:^{
  1498.         if(self.browserCancelled) self.browserCancelled();
  1499.     }];
  1500. }
  1501.  
  1502. - (void)browseWithControllerInViewController:(UIViewController *)controller connected:(void (^)(void))connected canceled:(void (^)(void))cancelled
  1503. {
  1504.     self.browserConnected = [connected copy];
  1505.     self.browserCancelled = [cancelled copy];
  1506.     // 注意这个自带的类
  1507.     MCBrowserViewController *browser = [[MCBrowserViewController alloc]initWithServiceType:self.serviceType session:self.session];
  1508.     browser.delegate = self;
  1509.     [controller presentViewController:browser animated:YES completion:nil];
  1510. }
  1511.  
  1512. - (NSArray *)connectedPeers
  1513. {
  1514.     return self.session.connectedPeers;
  1515. }
  1516.  
  1517. // 邀请某某连接
  1518. - (void)didReceiveInvitationFromPeer:(void (^)(MCPeerID *peer, NSData *context))invite;
  1519. {
  1520.     self.inviteBlock = [invite copy];
  1521. }
  1522.  
  1523. - (void)invitePeerToConnect:(MCPeerID *)peer connected:(void (^)(void))connected
  1524. {
  1525.     [self.browser invitePeer:peer toSession:self.session withContext:nil timeout:30];
  1526. }
  1527.  
  1528. - (void)startReceivingResourceOnMainQueue:(BOOL)mainQueue block:(void (^)(NSString *name, MCPeerID *peer, NSProgress *progress))block
  1529. {
  1530.  
  1531.     self.didStartReceivingResource = [block copy];
  1532.     self.resourceStart = mainQueue;
  1533. }
  1534. // 接收某某资源
  1535. - (void)receiveFinalResourceOnMainQueue:(BOOL)mainQueue complete:(void (^)(NSString *name, MCPeerID *peer, NSURL *url, NSError *error))block
  1536. {
  1537.     self.finalResource = [block copy];
  1538.     self.resourceFinalOnMainQueue = mainQueue;
  1539. }
  1540. - (NSOutputStream *)streamWithName:(NSString *)name toPeer:(MCPeerID *)peerID error:(NSError * __autoreleasing *)error
  1541. {
  1542.     return [self.session startStreamWithName:name toPeer:peerID error:error];
  1543. }
  1544. // 开始转化为流
  1545. - (void)didReceiveStreamFromPeer:(void (^)(NSInputStream *inputStream, MCPeerID *peer, NSString *streamName))streamBlock
  1546. {
  1547.     self.streamBlock = [streamBlock copy];
  1548. }
  1549. - (void)didFindPeerWithInfo:(void (^)(MCPeerID *peer, NSDictionary *info))found
  1550. {
  1551.     self.didFindPeer = [found copy];
  1552. }
  1553. #pragma mark  一些断开的情况
  1554. - (void)disconnectSession
  1555. {
  1556.     [self.session disconnect];
  1557. }
  1558.  
  1559. - (void)stopAdvertising
  1560. {
  1561.     [self.advertiser stopAdvertisingPeer];
  1562.     [self.advertisingAssistant stop];
  1563. }
  1564.  
  1565. - (void)stopBrowsing
  1566. {
  1567.     [self.browser stopBrowsingForPeers];
  1568. }
  1569.  
  1570. - (BOOL)isConnected {
  1571.     return self.session.connectedPeers && self.session.connectedPeers.count > 0;
  1572. }
  1573.  
  1574. // 是否连接 它
  1575. - (void)connectToPeer:(BOOL)connect {
  1576.     self.invitationHandler(connect, self.session);
  1577. }
  1578.  
  1579. - (MCSession *)session {
  1580.     return self.currentSession;
  1581. }
  1582.  
  1583. - (MCPeerID *)firstPeer {
  1584.     return self.session.connectedPeers.firstObject;
  1585. }
  1586.  
  1587. @end

最终效果只能真机测试,所以这里不做演示!

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