iOS 蓝牙实现照片的传递

ios 蓝牙的实现方案

1 GameKit.framework ( ios 7 已经过期了)

2 MultipeerConnectivity.framework (ios 7 开始引入)

3 ExternalAccessory.framework (必须经过苹果的认证就是要给钱)

4 CoreBluetooth.framework ( 时下最热门的 手机要4s ios6 以上 消耗的电量非常少 运动手环，嵌入设备，智能家居)   

 第一种方式蓝牙实现的代码

// 蓝牙建立连接的方法

- (IBAction)content:(id)sender {    

    //创建连接设备的控制器   

 GKPeerPickerController *picker = [[GKPeerPickerController alloc]init];   

 //    设置代理    picker.delegate =self;    

[picker show]; }

// 蓝牙控制器的方法

- (void)peerPickerController:(GKPeerPickerController *)picker didConnectPeer:(NSString *)peerID toSession:(GKSession *)session {   

// 保留会话 到后面的发送图片的时候要使用  

  self.session = session;   

 // 连接是成功    //   

   peerID 每个蓝牙的节点id    //    session  建立会话来传送数据    // 设置句柄（设置了句柄的话系统要求你必须要实现一个方法）   

 [self.session setDataReceiveHandler:self withContext:nil];   

     [picker dismiss];}

// 选择照片

- (IBAction)choseImage:(id)sender {    if([UIImagePickerControll

er isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]); 

  UIImagePickerController *imagePicker  = [[UIImagePickerController alloc]init];  

  imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;    [self presentViewController:imagePicker animated:YES completion:^{            }];  

  imagePicker.delegate = self;  

}

//选择照片的代理方法

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary*)info{

NSLog(@"%@",info);

self.imageView.image = info[UIImagePickerControllerOriginalImage];

[self dismissViewControllerAnimated:YES completion:^{

nil;

}];

}

// 发送图片

- (IBAction)sendImage:(id)sender {

NSData *data = UIImageJPEGRepresentation(self.imageView.image, 1.0);

[self.session sendDataToAllPeers:data withDataMode:GKSendDataReliable error:nil];

}

// 接受数据的方法

- (void) receiveData:(NSData *)data fromPeer:(NSString *)peer inSession: (GKSession *)session context:(void *)context{

self.imageView.image = [UIImage imageWithData:data];

}